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引用 http://blog.joycode.com/joe/archive/2005/09/06/63068.aspx
http://www.itlearner.com/article/2006/3325.shtml使用方法： js
//獲得Cookie解碼后的值
function?GetCookieVal(offset){
????var?endstr?=?document.cookie.indexOf?(";",?offset);
????if?(endstr?==?-1)
????endstr?=?document.cookie.length;
????return?unescape(document.cookie.substring(offset,?endstr));
}
//設定Cookie值
function?SetCookie(name,?value){
????var?expdate?=?new?Date();
????var?argv?=?SetCookie.arguments;
????var?argc?=?SetCookie.arguments.length;
????var?expires?=?(argc?>?2)???argv[2]?:?null;
????var?path?=?(argc?>?3)???argv[3]?:?null;
????var?domain?=?(argc?>?4)???argv[4]?:?null;
????var?secure?=?(argc?>?5)???argv[5]?:?false;
????if(expires!=null)?expdate.setTime(expdate.getTime()?+?(?expires?*?1000?));
????document.cookie?=?name?+?"="?+?escape?(value)?+((expires?==?null)???""?:?(";?expires="+?expdate.toGMTString()))
????+((path?==?null)???""?:?(";?path="?+?path))?+((domain?==?null)???""?:?(";?domain="?+?domain))
????+((secure?==?true)???";?secure"?:?"");
}
//刪除Cookie
function?DelCookie(name){
????var?exp?=?new?Date();
????exp.setTime?(exp.getTime()?-?1);
????var?cval?=?GetCookie?(name);
????document.cookie?=?name?+?"="?+?cval?+?";?expires="+?exp.toGMTString();
}
//獲得Cookie的原始值
function?GetCookie(name){
????var?arg?=?name?+?"=";
????var?alen?=?arg.length;
????var?clen?=?document.cookie.length;
????var?i?=?0;
????while?(i?<?clen)
????{
????????var?j?=?i?+?alen;
????????if?(document.cookie.substring(i,?j)?==?arg)
????????return?GetCookieVal?(j);
????????i?=?document.cookie.indexOf("?",?i)?+?1;
????????if?(i?==?0)?break;
????}
????return?null;
}
jsunit <!DOCTYPE?html?
??PUBLIC?"-//W3C//DTD?HTML?4.01?Transitional//EN"?
??"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta?http-equiv="Content-Type"?content="text/html;?charset=BIG5">
<title>x</title>
<script?type="text/javascript"?src="test.js"></script>
<script?type="text/javascript"?src="lib/jsUnitCore.js"></script>
<script?type="text/javascript">
????
????
????function?testValidArgs()?{?//?測試的函式要以test名稱作為開頭
????????SetCookie('li','gg');
????????assertEquals("cookie?get?err",?'gg',?GetCookie('li')?);
????????assertEquals("cookie?getVal?err",?'li=gg',?GetCookieVal('li')?);
????????
????????
????????DelCookie("li");
????????assertEquals("cookie del err ",null,?GetCookie('li')?);
????????
????????
????}
????
????
</script>
</head>
<body>
</body>
</html>
運行 Jsunit-> testRunner.html 通過測試
環境:
????
private
?SessionFactory?sessionFactory;
????
protected
?
void
?setUp()?
throws
?Exception?{
????????
super
.setUp();
????????
//
利用java反射得到?HibernateSessionFactory?->
????????
//
private??static?org.hibernate.SessionFactory?sessionFactory;
????????
//
要模擬?并發?要?HibernateSessionFactory?得出的?有?threadLocal?不行?
????????
//
要?
????????HibernateSessionFactory.currentSession();
????????HibernateSessionFactory.closeSession();
????????Field?field?
=
?HibernateSessionFactory.
class
.getDeclaredField(
"
sessionFactory
"
);
????????field.setAccessible(
true
);
????????sessionFactory?
=
?(SessionFactory)?field.get(HibernateSessionFactory.
class
);
????}
????
protected
?
void
?tearDown()?
throws
?Exception?{
????????
super
.tearDown();
????}
悲觀鎖:
????
/**
?悲觀鎖問題?線程模擬?并發?
?????*?Table?->?T1oo(id,name)
?????*?????+----+------+
?????*????|?id?|?name?|
?????*????+----+------+
?????*????|??4?|?xx1??|
?????*????+----+------+
?????
*/
????
public
?
void
?ctestLock()?
throws
?Exception?{
????????
//
?insert?test?Data 測試數據
????????Session?seInsert?
=
?sessionFactory.openSession();
????????Transaction?tr?
=
?seInsert.beginTransaction();
????????T1oo?testUse?
=
?testUse?
=
?
new
?T1oo();
????????testUse.setName(
"
liukaiyi_test
"
);
????????seInsert.save(testUse);
????????tr.commit();
????????System.out.println(?
"
**************Test?Use?Bean?:?insert*******************
"
?);
????????seInsert.close();
????????Integer?testId?
=
?testUse.getId();
????????
??????? //并發模擬
????????Session?session1?
=
?sessionFactory.openSession();
????????Session?session2?
=
?sessionFactory.openSession();
????????
????????
final
?Transaction?tr1?
=
?session1.beginTransaction();
????????Transaction?tr2?
=
?session2.beginTransaction();
????????
????????Query?qu1?
=
?session1.createQuery(
"
?from?T1oo?t1oo?where?t1oo.name='liukaiyi_test'
"
);
????????Query?qu2?
=
?session2.createQuery(
"
?from?T1oo?t1oo?where?t1oo.name='liukaiyi_test'
"
);
????????
??????? //加悲觀鎖
????????qu1.setLockMode(
"
t1oo
"
,LockMode.UPGRADE);
????????
final
?Object?bean1?
=
?qu1.uniqueResult();
????????Object?bean2?
=
?qu2.uniqueResult();
????????T1oo?t1oo2?
=
?(T1oo)bean2;
????????
????????t1oo2.setName(
"
run1
"
);
????????
????????
new
?Thread(
????????????????
new
?Runnable(){
????????????????????
public
?
void
?run()??{
????????????????????????
try
?{
????????????????????????????System.out.println(?
"
********解鎖準備*********
"
?);
????????????????????????????Thread.sleep(
10
*
1000
);
????????????????????????????T1oo?t1oo1?
=
?(T1oo)bean1;
????????????????????????????t1oo1.setName(
"
run2
"
);
????????????????????????????tr1.commit();
????????????????????????????System.out.println(?
"
********解鎖成功t*********
"
?);
????????????????????????}?
catch
?(InterruptedException?e)?{e.printStackTrace();}
????????????????????}
????????????????}
????????).start();
???????
/
/這里會 等待十秒后 tr1解鎖 /
????????tr2.commit();
????????
????????session1.close();
????????session2.close();
????????
????????
????????
//
?delete?Test?Date 刪除測試數據
????????Session?seDelete?
=
?sessionFactory.openSession();
????????Transaction?trD?
=
?seDelete.beginTransaction();
????????Object?obj?
=
?seDelete.createQuery(
"
?from?T1oo?t?where?t.id=:id?
"
).
????????????????????????setInteger(
"
id
"
,testId.intValue()).
????????????????????????uniqueResult();
????????seDelete.delete(obj);
????????trD.commit();
????????System.out.println(?
"
**************Test?Use?Bean?:?delete**************
"
?);
????????seDelete.close();
????}
樂觀鎖:
????
/**
?樂觀鎖問題
?????*?Table?->?T1oo(id,name)
?????*?T2oo.hbn.xml?<class>?+>?optimistic-lock="version"
?????*?id下面?+>?<version?name="version"?type="integer"?column="version"?/>
?????*????+---------+---------+------+
?????*????|?Field???|?Type????|?Null?|
?????*????+---------+---------+------+
?????*????|?id??????|?int(11)?|??????|
?????*????|?avg?????|?int(11)?|??????|
?????*????|?aid?????|?int(11)?|?YES??|
?????*????|?version?|?int(11)?|?YES??|
?????*????+---------+---------+------+
?????*??注意：要在數據庫中多加一列?
?????*??mysql>?alter?table?T2OO?add?version?int;
?????
*/
????
public
?
void
?testOpLock()
throws
?Exception{
??????? //添加測試數據
????????Session?session?
=
?sessionFactory.openSession();
????????Transaction?trI?
=
?session.beginTransaction();
????????Connection?conn?
=
?session.connection();
????????T2oo?t2oo?
=
?
new
?T2oo();
????????T1oo?t1oo?
=
new
?T1oo(
"
t1ooOpLock
"
);
????????t1oo.setT2ooSet(
new
?HashSet());
????????t2oo.setAvg(
new
?Integer(
23
));????
????????t2oo.setT1oo(t1oo);
????????t1oo.getT2ooSet().add(t2oo);
????????session.save(t2oo);
????????trI.commit();
????????session.clear();
????????session.close();
??????? //并發模擬
????????Session?se1?
=
?sessionFactory.openSession();
????????Session?se2?
=
?sessionFactory.openSession();
????????
????????Transaction?tr1?
=
?se1.beginTransaction();
????????Transaction?tr2?
=
?se2.beginTransaction();
???????
????????T1oo?obj1?
=
?(T1oo)se1.load(T1oo.
class
,
new
?Integer(
1
));
????????T1oo?obj2?
=
?(T1oo)se2.load(T1oo.
class
,
new
?Integer(
1
));
????????
????????((T2oo)obj1.getT2ooSet().iterator().next()).setAvg(
new
?Integer(
9
));
????????((T2oo)obj2.getT2ooSet().iterator().next()).setAvg(
new
?Integer(
10
));
????????????????
????????tr1.commit();
????????
????????
try
?{
????????????tr2.commit();
????????}?
catch
?(Exception?e)?{
????????????se2.clear();
????????????tr2.commit();
????????????
//
tr2報錯
????????}
finally
{
????????????se1.close();
????????????se2.close();
????????}
????????
????????
??????? //測試數據刪除
????????Session?dele?
=
?sessionFactory.openSession();
????????Transaction?tr?
=
?dele.beginTransaction();
????????dele.delete(obj1);
????????tr.commit();
????????dele.close();
????????
????????HibernateSessionFactory.closeSession();
????}
inverse 使用
說明約定-如：
1.表屬性 :T1oo->id,name
??? ?? ?? T2oo->id,avg,aid(
外鍵
),version
2.代碼過程是：Save->t1oo對象(T1oo 外鍵 T2oo)
??? ??? T1oo t1oo = new T1oo();
??? ??? t1oo.setName("xx");??? ???
??? ??? t1oo.setT2ooSet(new HashSet());
??? ??? T2oo t2oo2 = new T2oo(24);
??? ??? //t2oo2.setT1oo(t1oo); (在下面的本用例表中的第3屬性 )
??? ??? t1oo.getT2ooSet().add(t2oo2);
(在下面的本用例表中的第2屬性 )
??? ??? session.save(t1oo);
3.本例表使用：
T1oo.hbm.xml ->
??????? <set name="t2ooSet" inverse="true" cascade = "all"? >
(在下面的本用例表中的第1，2屬性 )
??????????? <key column="aid"/>
??????????? <one-to-many class="T2oo"/>
??????? </set>
T2oo.hbm.xml ->
??? ??? <many-to-one name="t1oo" column="aid"? class="T1oo" cascade="all" />
(在下面的本用例表中的第1，2屬性 )
結合上面說明得表為：
+-------+-------+-------+----------+----------+
|hbn.xml|inverse|cascade|t1oo->t2oo|t2oo->t1oo|
+-------+-------+-------+----------+----------+
| t1oo? | true? | all?? |?? ??? ?? |????????? |
+-------+-------+-------+? true??? |? false?? |
| t2oo? |?????? | all?? |??? ????? |????????? |
+-------+-------+-------+----------+----------+
4.執行
Hibernate語句
：
??? Hibernate: insert into t1oo (name, id) values (?, ?)
??? Hibernate: insert into t2oo (version, avg, aid, id) values (?, ?, ?, ?)
5.結果為：
mysql> select * from t2oo;
+----+-----+------+---------+
| id | avg | aid? | version |
+----+-----+------+---------+
|? 2 |? 24 | NULL |?????? 0 | //主要就是看 aid屬性
+----+-----+------+---------+
1 row in set (0.00 sec)
mysql> select * from t1oo; //
因為
T1oo總是可以 Save 下面就不再提了
+----+------+
| id | name |
+----+------+
|? 2 | xx?? |
+----+------+
1 row in set (0.00 sec)
可改項：
+-------+-------+-------+----------+----------+
|hbn.xml|inverse|cascade|t1oo->t2oo|t2oo->t1oo|
+-------+-------+-------+----------+----------+
| t1oo? | 可改4 | 可改2? |?? ??? ?? |????????? |
+-------+-------+-------+?????????? |?? 可改1? |
| t2oo? |?????? | 可改3 |??? ?????? |????????? |
+-------+-------+-------+----------+----------+
主本:
+-------+-------+-------+----------+----------+
|hbn.xml|inverse|cascade|t1oo->t2oo|t2oo->t1oo|
+-------+-------+-------+----------+----------+
| t1oo? | true? | all?? |?? ??? ?? |????????? |
+-------+-------+-------+? true??? |? true??? |
| t2oo? |?????? | all?? |??? ????? |????????? |
+-------+-------+-------+----------+----------+
Hibernate: insert into t1oo (name, id) values (?, ?)
Hibernate: insert into t2oo (version, avg, aid, id) values (?, ?, ?, ?)
mysql> select * from t2oo;
+----+-----+------+---------+
| id | avg | aid? | version |
+----+-----+------+---------+
|? 1 |? 24 |??? 1 |?????? 0 |
+----+-----+------+---------+
1 row in set (0.00 sec)
改1
+-------+-------+-------+----------+----------+
|hbn.xml|inverse|cascade|t1oo->t2oo|t2oo->t1oo|
+-------+-------+-------+----------+----------+
| t1oo? | true? | all?? |?? ??? ?? |????????? |
+-------+-------+-------+? true??? |? false?? |
| t2oo? |?????? | all?? |??? ????? |????????? |
+-------+-------+-------+----------+----------+
Hibernate: insert into t1oo (name, id) values (?, ?)
Hibernate: insert into t2oo (version, avg, aid, id) values (?, ?, ?, ?)
mysql> select * from t2oo;
+----+-----+------+---------+
| id | avg | aid? | version |
+----+-----+------+---------+
|? 1 |? 24 | NULL|?????? 0 |
+----+-----+------+---------+
1 row in set (0.00 sec)
改2
+-------+-------+-------+----------+----------+
|hbn.xml|inverse|cascade|t1oo->t2oo|t2oo->t1oo|
+-------+-------+-------+----------+----------+
| t1oo? | true? |?????? |?? ??? ?? |????????? |
+-------+-------+-------+? true??? |? true??? |
| t2oo? |?????? | all?? |??? ????? |????????? |
+-------+-------+-------+----------+----------+
Hibernate: insert into t1oo (name, id) values (?, ?)
Empty set (0.00 sec)
改2? 改1
+-------+-------+-------+----------+----------+
|hbn.xml|inverse|cascade|t1oo->t2oo|t2oo->t1oo|
+-------+-------+-------+----------+----------+
| t1oo? | true? |?????? |?? ??? ?? |????????? |
+-------+-------+-------+? true??? |? false?? |
| t2oo? |?????? | all?? |??? ????? |????????? |
+-------+-------+-------+----------+----------+
Hibernate: insert into t1oo (name, id) values (?, ?)
Empty set (0.00 sec)
改3
+-------+-------+-------+----------+----------+
|hbn.xml|inverse|cascade|t1oo->t2oo|t2oo->t1oo|
+-------+-------+-------+----------+----------+
| t1oo? | true? | all?? |?? ??? ?? |????????? |
+-------+-------+-------+? true??? |? true??? |
| t2oo? |?????? |?????? |??? ????? |????????? |
+-------+-------+-------+----------+----------+
Hibernate: insert into t1oo (name, id) values (?, ?)
Hibernate: insert into t2oo (version, avg, aid, id) values (?, ?, ?, ?)
mysql> select * from t2oo;
+----+-----+------+---------+
| id | avg | aid? | version |
+----+-----+------+---------+
|? 1 |? 24 |??? 1 |?????? 0 |
+----+-----+------+---------+
1 row in set (0.00 sec)
改3 改2
+-------+-------+-------+----------+----------+
|hbn.xml|inverse|cascade|t1oo->t2oo|t2oo->t1oo|
+-------+-------+-------+----------+----------+
| t1oo? | true? |?????? |?? ??? ?? |????????? |
+-------+-------+-------+? true??? |? true??? |
| t2oo? |?????? |?????? |??? ? ? ? |????????? |
+-------+-------+-------+----------+----------+
Hibernate: insert into t1oo (name, id) values (?, ?)
Empty set (0.00 sec)
改3 改1
+-------+-------+-------+----------+----------+
|hbn.xml|inverse|cascade|t1oo->t2oo|t2oo->t1oo|
+-------+-------+-------+----------+----------+
| t1oo? | true? | all?? |?? ??? ?? |????????? |
+-------+-------+-------+? true??? |? false?? |
| t2oo? |?????? |?????? |??? ? ? ? |????????? |
+-------+-------+-------+----------+----------+
Hibernate: insert into t1oo (name, id) values (?, ?)
Hibernate: insert into t2oo (version, avg, aid, id) values (?, ?, ?, ?)
mysql> select * from t2oo;
+----+-----+------+---------+
| id | avg | aid? | version |
+----+-----+------+---------+
|? 1 |? 24 | NULL |?????? 0 |
+----+-----+------+---------+
1 row in set (0.00 sec)
改3 改2 改1
+-------+-------+-------+----------+----------+
|hbn.xml|inverse|cascade|t1oo->t2oo|t2oo->t1oo|
+-------+-------+-------+----------+----------+
| t1oo? | true? |?????? |?? ??? ?? |????????? |
+-------+-------+-------+? true??? |? false?? |
| t2oo? |?????? |?????? |??? ????? |????????? |
+-------+-------+-------+----------+----------+
Hibernate: insert into t1oo (name, id) values (?, ?)
Empty set (0.00 sec)
改4
+-------+-------+-------+----------+----------+
|hbn.xml|inverse|cascade|t1oo->t2oo|t2oo->t1oo|
+-------+-------+-------+----------+----------+
| t1oo? | false | all?? |?? ??? ?? |????????? |
+-------+-------+-------+? true??? |? true??? |
| t2oo? |?????? | all?? |??? ????? |????????? |
+-------+-------+-------+----------+----------+
Hibernate: insert into t1oo (name, id) values (?, ?)
Hibernate: insert into t2oo (version, avg, aid, id) values (?, ?, ?, ?)
Hibernate: update t2oo set aid=? where id=?
mysql> select * from t2oo;
+----+-----+------+---------+
| id | avg | aid? | version |
+----+-----+------+---------+
|? 1 |? 24 |??? 1 |?????? 0 |
+----+-----+------+---------+
1 row in set (0.02 sec)
改4 改1
+-------+-------+-------+----------+----------+
|hbn.xml|inverse|cascade|t1oo->t2oo|t2oo->t1oo|
+-------+-------+-------+----------+----------+
| t1oo? | false | all?? |?? ??? ?? |????????? |
+-------+-------+-------+? true??? |? false?? |
| t2oo? |?????? | all?? |??? ? ? ? |????????? |
+-------+-------+-------+----------+----------+
Hibernate: insert into t1oo (name, id) values (?, ?)
Hibernate: insert into t2oo (version, avg, aid, id) values (?, ?, ?, ?)
Hibernate: update t2oo set aid=? where id=?
mysql> select * from t2oo;
+----+-----+------+---------+
| id | avg | aid? | version |
+----+-----+------+---------+
|? 1 |? 24 |??? 1 |?????? 0 |
+----+-----+------+---------+
1 row in set (0.00 sec)
改4 改2
+-------+-------+-------+----------+----------+
|hbn.xml|inverse|cascade|t1oo->t2oo|t2oo->t1oo|
+-------+-------+-------+----------+----------+
| t1oo? | false | ? ? ? |?? ??? ?? |????????? |
+-------+-------+-------+? true??? |? true??? |
| t2oo? |?????? | all?? |??? ? ? ? |????????? |
+-------+-------+-------+----------+----------+
Hibernate: insert into t1oo (name, id) values (?, ?)
Hibernate: update t2oo set aid=? where id=?
Empty set (0.00 sec)
改4 改3
+-------+-------+-------+----------+----------+
|hbn.xml|inverse|cascade|t1oo->t2oo|t2oo->t1oo|
+-------+-------+-------+----------+----------+
| t1oo? | false | all?? |?? ??? ?? |????????? |
+-------+-------+-------+? true??? |? true??? |
| t2oo? |?????? |?????? |??? ? ? ? |????????? |
+-------+-------+-------+----------+----------+
Hibernate: insert into t1oo (name, id) values (?, ?)
Hibernate: insert into t2oo (version, avg, aid, id) values (?, ?, ?, ?)
Hibernate: update t2oo set aid=? where id=?
mysql> select * from t2oo;
+----+-----+------+---------+
| id | avg | aid? | version |
+----+-----+------+---------+
|? 1 |? 24 |??? 1 |?????? 0 |
+----+-----+------+---------+
1 row in set (0.00 sec)
改4 改3 改2
+-------+-------+-------+----------+----------+
|hbn.xml|inverse|cascade|t1oo->t2oo|t2oo->t1oo|
+-------+-------+-------+----------+----------+
| t1oo? | false |?????? |?? ??? ?? |????????? |
+-------+-------+-------+? true??? |? true??? |
| t2oo? |?????? |?????? |??? ? ? ? |????????? |
+-------+-------+-------+----------+----------+
Hibernate: insert into t1oo (name, id) values (?, ?)
Hibernate: update t2oo set aid=? where id=?
Empty set (0.00 sec)
改4 改1 改2
+-------+-------+-------+----------+----------+
|hbn.xml|inverse|cascade|t1oo->t2oo|t2oo->t1oo|
+-------+-------+-------+----------+----------+
| t1oo? | false |?????? |?? ??? ?? |????????? |
+-------+-------+-------+? true??? |? false?? |
| t2oo? |?????? | all?? |??? ????? |????????? |
+-------+-------+-------+----------+----------+
Hibernate: insert into t1oo (name, id) values (?, ?)
Hibernate: update t2oo set aid=? where id=?
Empty set (0.00 sec)
改4 改1 改3
+-------+-------+-------+----------+----------+
|hbn.xml|inverse|cascade|t1oo->t2oo|t2oo->t1oo|
+-------+-------+-------+----------+----------+
| t1oo? | false |? all? |?? ??? ?? |????????? |
+-------+-------+-------+? true??? |? false?? |
| t2oo? |?????? |?????? |??? ????? |????????? |
+-------+-------+-------+----------+----------+
Hibernate: insert into t1oo (name, id) values (?, ?)
Hibernate: insert into t2oo (version, avg, aid, id) values (?, ?, ?, ?)
Hibernate: update t2oo set aid=? where id=?
mysql> select * from t2oo;
+----+-----+------+---------+
| id | avg | aid? | version |
+----+-----+------+---------+
|? 1 |? 24 |??? 1 |?????? 0 |
+----+-----+------+---------+
1 row in set (0.02 sec)
改4 改3 改2 改1
+-------+-------+-------+----------+----------+
|hbn.xml|inverse|cascade|t1oo->t2oo|t2oo->t1oo|
+-------+-------+-------+----------+----------+
| t1oo? | false |?????? |?? ??? ?? |????????? |
+-------+-------+-------+? true??? |? false?? |
| t2oo? |?????? |?????? |??? ????? |????????? |
+-------+-------+-------+----------+----------+
Hibernate: insert into t1oo (name, id) values (?, ?)
Hibernate: update t2oo set aid=? where id=?
Empty set (0.00 sec)
緩存問題：
????
/**
?使用?Query.executeUpdate()?緩存中數據不同步?解決辦法
?????*??Table?->?T1oo(id,name)
?????*?Table?->?T2oo(id,avg,aid)
?????*?外鍵?T1oo.id->T2oo.aid
?????*??Session.createQuery("delete?T1oo")?->??Query.executeUpdate()?
????
*/
????
public
?
void
?testExecuteUpdate(){
????????System.out.println(
"
\r\n\r\n********************ExecuteUpdate************************
"
);
????????T1oo?t1oo?
=
?
new
?T1oo();
????????t1oo.setName(
"
liukaiyi
"
);
????????
????????HibernateSessionFactory.closeSession();
????????
????????Session?session?
=
?HibernateSessionFactory.currentSession();
????Transaction?tr1?
=
?session.beginTransaction();
????????
//
t1?成為?持久狀態?一級緩存中?加載
????????session.saveOrUpdate(t1oo);?
????????
//
直接一條語句刪除T1oo，緩存無法同步
????????
//
一級緩存中還有?t1
????????Query?qu?
=
?session.createQuery(
"
delete?T1oo
"
);
????????
try
?{
????????????qu.executeUpdate();
????????}?
catch
?(Exception?e)?{????
????????????System.out.println(
"
//err:?有級聯?單使用?delete?T1oo?還要delete?T2oo.aid?=?T1oo.id//
"
);
????????????List?list?
=
?session.createQuery(
"
from?T1oo
"
).list();
????????????
for
(Iterator?it
=
list.iterator();it.hasNext();){
????????????????Query?t2qu?
=
?session.createQuery(
"
delete?T2oo??where?aid=:id
"
);
????????????????t2qu.setInteger(
"
id
"
,?((T1oo)it.next()).getId().intValue());
????????????????t2qu.executeUpdate();????????????????
????????????}
????????????qu.executeUpdate();
????????}
????????
????????tr1.commit();
????????
????Transaction?tr2?
=
?session.beginTransaction();
????????
//
這直接通過一級緩存中加載t2，但DB中以沒有此條數據
????????t1oo?
=
?(T1oo)session.load(T1oo.
class
,t1oo.getId());
????????t1oo.setName(
"
google
"
);
????????
try
?{
????????????tr2.commit();????
????????}?
catch
?(Exception?e)?{
????????????System.out.println(
"
//err:?update(t1oo)->DB?中數據庫中沒有?t1oo?//
"
);
????????}
????????
????????System.out.println(
"
?一級緩存清空前?
"
+
?session.get(T1oo.
class
,t1oo.getId())?);
????????session.evict(t1oo);
????????System.out.println(
"
?一級緩存清空后?
"
+
?session.get(T1oo.
class
,t1oo.getId())?);
????????
????????
//
不把t1oo?id?為空，否則當在saveOrUpdate時候就會以為是游離態?update了
????????t1oo.setId(
null
);
????????
//
id=null?insert?調用
????????session.saveOrUpdate(t1oo);????????
????????tr2.commit();
????????
????Transaction?tr3?
=
?session.beginTransaction();
????????session.delete(t1oo);
????????tr3.commit();
????????
????????session.close();
????????HibernateSessionFactory.closeSession();
????????
????}
結果是：
********************ExecuteUpdate************************
log4j:WARN No appenders could be found for logger (org.hibernate.cfg.Environment).
log4j:WARN Please initialize the log4j system properly.
Hibernate: insert into t1oo (name, id) values (?, ?)
Hibernate: delete from t1oo
//err: 有級聯 單使用 delete T1oo 還要delete T2oo.aid = T1oo.id//
Hibernate: select t1oo0_.id as id, t1oo0_.name as name0_ from t1oo t1oo0_
Hibernate: delete from t2oo where aid=?
Hibernate: delete from t2oo where aid=?
Hibernate: delete from t2oo where aid=?
Hibernate: delete from t1oo
Hibernate: update t1oo set name=? where id=?
//err: update(t1oo)->DB 中數據庫中沒有 t1oo //
?一級緩存清空前 hbn.bean.T1oo@287
Hibernate: select t1oo0_.id as id0_, t1oo0_.name as name0_0_ from t1oo t1oo0_ where t1oo0_.id=?
?一級緩存清空后 null
Hibernate: insert into t1oo (name, id) values (?, ?)
Hibernate: delete from t1oo where id=?
Get Load 區別 ：
?????/**?Get?Load?區別?(在commit前要?session.flush())
?????*?Table?->?T1oo(id,name)
?????*?1.如果未能發現符合條件的記錄，get方法返回null，而load方法會拋出異常
?????*?2.Load方法可返回實體的代理類實例，而get方法永遠直接返回實體類。
?????*?3.load方法可以充分利用內部緩存和二級緩存中的現有數據，而get方法則僅僅在內部緩存中進行數據查找，
?????*?????????????如沒有發現對應數據，將越過二級緩存，直接調用SQL完成數據讀取。?
?????*/
????public?void?testGetLoad()?throws?Exception?{
????????System.out.println("\r\n\r\n********************Get<>Load************************");
????????Session?session?=?HibernateSessionFactory.currentSession();
????//??數據準備
????????T1oo?t1oo?=?new?T1oo();
????????t1oo.setName("liu");
????Transaction?t1?=?session.beginTransaction();
????????session.saveOrUpdate(t1oo);
????????//?為什么這會錯？
????????//session.evict(t1oo);
????????//session.flush();
????????t1.commit();
????????session.evict(t1oo);
????
????Transaction?t2?=?session.beginTransaction();
????????System.out.println("一級緩存是否有t1oo(load)->"+session.contains(t1oo));?
????????//這時候t1oo為?CGlib生成的代理類
????????t1oo?=?(T1oo)session.load(T1oo.class,t1oo.getId());
????????System.out.println("?延遲加載出現：select..?t1oo0_.id=??表的其他屬性加載?");
????????t1oo.setName("load?list");
????????//后在?update
????????t2.commit();
????????session.evict(t1oo);
????????
????Transaction?t3?=?session.beginTransaction();
????????System.out.println("一級緩存是否有t1oo(get)->"+session.contains(t1oo));?
????????//這時候t1oo為?CGlib生成的代理類
????????t1oo?=?(T1oo)session.get(T1oo.class,t1oo.getId());
????????System.out.println("?沒有延遲加載出現");
????????t1oo.setName("get?list");
????????//后在?update
????????t3.commit();????
????????session.evict(t1oo);
????????
????Transaction?tr3?=?session.beginTransaction();
????????session.delete(t1oo);
????????tr3.commit();
????????
????????session.close();
????????HibernateSessionFactory.closeSession();
????????
????}
結果
********************Get<>Load************************
Hibernate: insert into t1oo (name, id) values (?, ?)
一級緩存是否有t1oo(load)->false
?延遲加載出現：select.. t1oo0_.id=? 表的其他屬性加載
Hibernate: select t1oo0_.id as id0_, t1oo0_.name as name0_0_ from t1oo t1oo0_ where t1oo0_.id=?
Hibernate: update t1oo set name=? where id=?
一級緩存是否有t1oo(get)->false
Hibernate: select t1oo0_.id as id0_, t1oo0_.name as name0_0_ from t1oo t1oo0_ where t1oo0_.id=?
?沒有延遲加載出現
Hibernate: update t1oo set name=? where id=?
Hibernate: select t2ooset0_.aid as aid1_, t2ooset0_.id as id1_, t2ooset0_.id as id0_, t2ooset0_.avg as avg1_0_, t2ooset0_.aid as aid1_0_ from t2oo t2ooset0_ where t2ooset0_.aid=?
Hibernate: delete from t1oo where id=?
Set 集合的識別：
????/**?Set?集合的識別
?????*?Table?->?T1oo(id,name)
?????*?Table?->?T2oo(id,avg,aid)
?????*?外鍵?T1oo.id->T2oo.aid
?????*?T1oo??<set?name="t2ooSet"?inverse="false"?cascade?=?"all"??>
?????*?T2oo??<many-to-one?name="t1oo"?column="aid"?class="T1oo"?/>
?????*?cascade='insert'?是一定要的
?????*?????當?T1oo沒有?inverse="true"?主動權的時候，要雙項關聯
?????*?????t1oo.getT2ooSet().add(t2oo1);
?????*????t1oo.getT2ooSet().add(t2oo2);
?????*????t2oo1.setT1oo(t1oo);
?????*????t2oo2.setT1oo(t1oo);
?????*??要不后sql為：
?????*??Hibernate:?insert?into?t2oo?(avg,?aid,?id)?values?(?,??,??)
?????*????Hibernate:?insert?into?t2oo?(avg,?aid,?id)?values?(?,??,??)
?????*????+----+-----+------+
?????*????|?id?|?avg?|?aid??|
?????*????+----+-----+------+
?????*????|??1?|??24?|?NULL?|
?????*????|??2?|??23?|?NULL?|
?????*????+----+-----+------+
?????*????當?T1oo有?inverse="false"主動權的時候
?????*??t1oo.getT2ooSet().add(t2oo1);
?????*????t1oo.getT2ooSet().add(t2oo2);
?????*??Sql語句為：
?????*??Hibernate:?insert?into?t1oo?(name,?id)?values?(?,??)
?????*????Hibernate:?insert?into?t2oo?(avg,?aid,?id)?values?(?,??,??)
?????*????Hibernate:?insert?into?t2oo?(avg,?aid,?id)?values?(?,??,??)
?????*????Hibernate:?update?t2oo?set?aid=??where?id=?
?????*????Hibernate:?update?t2oo?set?aid=??where?id=?
?????*????|??3?|??24?|???12?|
?????*????|??4?|??23?|???12?|
?????*????+----+-----+------+
????*/
????public?void?testSet(){
????????System.out.println("\r\n\r\n********************Set************************");
????????T1oo?t1oo?=?new?T1oo();
????????t1oo.setName("list");
????????
????????T2oo?t2oo1?=?new?T2oo();?t2oo1.setAvg(new?Integer(23));
????????T2oo?t2oo2?=?new?T2oo();?t2oo2.setAvg(new?Integer(24));
????????
????????
????????Session?session?=?HibernateSessionFactory.currentSession();
????????Transaction?tr1?=?session.beginTransaction();
????????session.save(t1oo);
????????t1oo?=?(T1oo)?session.load(T1oo.class,t1oo.getId());
????????t1oo.setT2ooSet(new?HashSet())?;
????????t1oo.getT2ooSet().add(t2oo1);
????????t1oo.getT2ooSet().add(t2oo2);
?????????
????????System.out.println(?t1oo.getT2ooSet().size()+""?);????????
????????tr1.commit();
????????
????????System.out.println();
????????T2oo?t2oo3?=?new?T2oo();?t2oo3.setAvg(new?Integer(25));
????????T1oo?t1oo2?=?new?T1oo();?t1oo2.setName("mz");
????????t2oo3.setT1oo(t1oo2);
????????
????????Transaction?tr2?=?session.beginTransaction();
????????session.save(t2oo3);
????????try?{
????????????tr2.commit();????
????????}?catch?(Exception?e)?{
????????????System.out.println("//err:?沒有主動權?cascade?=?'all'?不可以級聯save?t1oo???//");
????????}
????????session.close();
????????HibernateSessionFactory.closeSession();
????}
???
結果是：
********************Set************************
2
Hibernate: insert into t1oo (name, id) values (?, ?)
Hibernate: insert into t2oo (avg, aid, id) values (?, ?, ?)
Hibernate: insert into t2oo (avg, aid, id) values (?, ?, ?)
Hibernate: update t2oo set aid=? where id=?
Hibernate: update t2oo set aid=? where id=?
//err: 沒有主動權 cascade = 'all' 不可以級聯save t1oo?? //
學習： http://visualjquery.com/1.1.2.htmlDOM
Attributes 1.attr(key, value) $("img").attr("title", "xx"); 也是對屬性的添加但可以動態 eg:??? 在每次給title時 動態了開始 <img title="pic" /><img title="pic" /><img title="pic" /> 通過$("img").attr("title", function(index) { return this.title + (i + 1); }); <img title="pic 1" /><img title="pic 2" /><img title="pic 3" /> 2.? html 內容取、賦值 取??<div><input/></div>? ->>??$("div").html(); ->>? 結果：<input/> 賦? $("div").html("<b>new stuff</b>"); ->><div><b>new stuff</b></div> 通過這 ajax 就很簡單了。^_^ Manipulation1.位置調換 after, append、before $("p").after("<b>Hello</b>");??? <p>后 添加 <b>.. $("p").after( $("#foo")[0] );? 把id為foo的標簽移動到<p>后 $("input[@name='butt1']").clone().prependTo("form"); //clone in form
參考： ??? http://visualjquery.com/1.1.2.html
1.定位
$(?'xx'?)
$("p[a]").hide();
$("p:eq(0)").show();
$("div:visible").hide();
$("ul/li")
/* valid too: $("ul > li") */
$("p.foo[a]");
$("input[@name=bar]").val();
$("input[@type=radio][@checked]")
2.事件添加
?? <a href="#" name="li" >Link</a>
?? $(document).ready(function()?{
???????? $("a").click(function()?{????????????????????
?????????????? $("div").hide(); //跌代不可見 <a>
????? });
??? });
3.頁面 javascript 輸入（和jsp的 out.print(...)）$(html)
$("<div?id='div1'><font?color='red''>Hello</font></div>").appendTo("body");
4.寫css
$(document.body).css(?"background",?"black"?);
5.包含定位
<p>one</p> <div><p>two</p></div> <div>three</div>
$("div?>?p") //定位two <p>two</p>
6.范圍定位
<body>
????????<form>
????????????<input?type="button"?value="哈哈"/>
????????</form>
</body>
$("input:button",?document.forms[0])[0].setAttribute("value","google");
或? $("div", xml.responseXML) 等
7.表達試定位$("p[@name='p1']").hide();//hide不要?$(..)[0]
$("input[@name='butt1']:button",?document.forms[0])[0].setAttribute("value","google");
8.$(..).fun.. 添加方法
????????<form>
????????????<input?name="butt1"?type="button"?value="google"/>
????????</form>
????????<script>
????????????????
????????jQuery.fn.extend({
??????????check:?function()?{
????????????alert('check');
??????????}
????????});
????????$("input[@name='butt1']:button",?document.forms[0]).check();
????????</script>
或
jQuery.extend({
min: function(a, b) { return a < b ? a : b; },
max: function(a, b) { return a > b ? a : b; }
});
9.$.noConflict() ????<body>
????????<form>
????????????<input?name="butt1"?type="button"?value="google"/>
????????</form>
????????<a?href="#"?temp_href="#"?name="li"?>Link</a>
????????<script>
????????????????
?????var?$j?=?jQuery.noConflict();??
???????
?????//?Use?jQuery?via?$j( )??
?????$j(document).ready(function(){??
????????$("a").click(function()?{???
???????????????$j(document.forms[0]).hide();??
???????????});
?????});?
????????</script>
????</body>
10. $ 一般方法
//each(fn)$("img").each(function(i){
??this.src?=?"test"?+?i?+?".jpg";
});
<img/><img/>
<img?src="test0.jpg"/><img?src="test1.jpg"/>
$("p").eq(1) //后1個
$("p").lt(1) //正取 1 開始
$("img").get();//全取
$("img").get(0); //順序取 0開始
$("p").gt(0) //反取從0開始
$("*").index( $('#foo')[0] )
<div id="foobar"><b></b><span id="foo"></span></div>
返回結果 2
$("img").length; //總長度
$("img").size();
直接看代碼.. dom4j 的一般使用都在里面了 /lib/dom4j-1.6.1.jar /lib/jaxen-1.1-beta-6.jar package?useDom4j.test.supper;
import?java.io.File;
import?java.io.FileOutputStream;
import?java.io.IOException;
import?java.io.InputStream;
import?java.io.OutputStream;
import?java.net.URL;
import?java.util.Iterator;
import?java.util.List;
import?java.util.regex.Matcher;
import?java.util.regex.Pattern;
import?javax.xml.parsers.DocumentBuilder;
import?javax.xml.parsers.DocumentBuilderFactory;
import?junit.framework.TestCase;
import?org.dom4j.Document;
import?org.dom4j.DocumentFactory;
import?org.dom4j.DocumentHelper;
import?org.dom4j.Element;
import?org.dom4j.Node;
import?org.dom4j.QName;
import?org.dom4j.Visitor;
import?org.dom4j.VisitorSupport;
import?org.dom4j.XPath;
import?org.dom4j.io.DOMReader;
import?org.dom4j.io.HTMLWriter;
import?org.dom4j.io.OutputFormat;
import?org.dom4j.io.SAXReader;
import?org.dom4j.io.XMLWriter;
public?class?useDom4jTest?extends?TestCase?{
????//use?all
????private?String?path?;
????private?ClassLoader?clo;
????//?file?path?->?bin?
????private?String?classPath?;
????//use?save?
????static?private?Document?doc;
????private?String?filese;
????protected?void?setUp()?throws?Exception?{
????????super.setUp();
????????path?=?"useDom4j/test/config/test.xml";
????????clo?=?this.getClass().getClassLoader();
????????classPath?=?System.getProperty("java.class.path").split(";")[0]???;
????????filese?=?System.getProperty("file.separator");
????}
????protected?void?tearDown()?throws?Exception?{
????????super.tearDown();
????}
????
????public?void?testRead()throws?Exception{
????????SAXReader?sax?=?new?SAXReader();
????????//File?read
????????Document?docF?=??sax.read(
????????????????new?File(clo.getResource(path).getFile())
????????????????????);
????????assertNotNull("is?File?saxReader?err",docF);
????????
????????//InPutStream?read?
????????Document?docI?=?sax.read(?clo.getResourceAsStream(path)?);
????????assertNotNull("is?InPutStream?saxReader?err",docI);
????????
????????//URL?read?
????????Document?docU?=?sax.read(?clo.getResource(path)?);
????????assertNotNull("is?Url?saxReader?err",docU);
????????
????}
????
????/**?converts?a?W3C?DOM?document?into?a?dom4j?document?*/
????public?void?testConversion()?throws?Exception{
??????????DocumentBuilderFactory?domfac=DocumentBuilderFactory.newInstance();
??????????DocumentBuilder?dombuilder=domfac.newDocumentBuilder();
??????????InputStream?input?=??clo.getResourceAsStream(path)?;
??????????org.w3c.dom.Document?doc3c?=?dombuilder.parse(?input?);
??????????DOMReader?xmlReader?=?new?DOMReader();
??????????assertEquals(?"?Conversion?:?W3C?DOM->?dom4j?DOM?err",
??????????????????xmlReader.read(doc3c)?instanceof?Document,true?);
??????}
??????
????public?void?testCreate()throws?Exception{
??????????DocumentFactory?factory?=?DocumentFactory.getInstance();
??????????doc?=?factory.createDocument();
????????//root?Create
??????????Element?root?=?doc.addElement("testElement");
??????????assertNotNull("is?root?Create?err",root);
??????????
???????????Element?author2?=?root.addElement(?"author"?)
??????????????.addAttribute(?"name",?"Toby"?)
??????????????.addAttribute(?"location",?"Germany"?)
??????????????.addText(?"Tobias?Rademacher"?);
????????????Element?author1?=?root.addElement(?"author"?)
??????????????.addAttribute(?"name",?"James"?)
??????????????.addAttribute(?"location",?"UK"?)
??????????????.addText(?"James?Strachan"?);
????????????
????????????//Test?Create?
????????????//use?XPath?->jaxen-xxx.jar??
????????????assertEquals("create?Element?author2?err",
????????????????????doc.selectSingleNode("/testElement/author[@name='Toby']").getText()
????????????????????,"Tobias?Rademacher");
????????????assertEquals("create?Element?author1?err",
????????????????????doc.selectSingleNode("/testElement/author[@location='UK']/@name").getText()
????????????????????,"James");
????}
?????public?void?testPrintingHTML()throws?Exception{
???????????String?testSaveXml?=?"useDom4j/test/config/testHtml.html";
???????????
???????????testSaveXml?=?classPath+filese+testSaveXml;
??????????
???????????File?file?=?getFile(testSaveXml);
???????????//Save?file.html?
???????????HTMLWriter?writer?=?new?HTMLWriter(new?FileOutputStream(?file?));
???????????writer.write(new?SAXReader().read(?clo.getResource(path)?));
???????????writer.flush();
?????}
????
????public?void?testIterator(){
????????Element?root?=?this.doc.getRootElement();
????????
????????//Iterator
????????Iterator?elementIterator?=?root.elementIterator();
????????while(elementIterator.hasNext()){
??????????Element?element?=?(Element)elementIterator.next();
??????????assertNotNull("not?attr?name",?element.selectSingleNode("./@name")?);
??????????assertNotNull("not?attr?location",?element.selectSingleNode("./@location")?);
??????????assertNotNull("not?Text?",?element.selectSingleNode(".").getText()?);
????????}
????????
????????//for?->?./XX
????????for?(?int?i?=?0,?size?=?root.nodeCount();?i?<?size;?i++?)?{
????????????Node?node?=?root.node(i);
????????????if?(?node?instanceof?Element?)?{
??????????????Element?element?=?(Element)node;
??????????????assertNotNull("not?attr?name",?element.selectSingleNode("./@name")?);
????????????????assertNotNull("not?attr?location",?element.selectSingleNode("./@location")?);
????????????????assertNotNull("not?Text?",?element.selectSingleNode(".").getText()?);
????????????}
????????}
????????
????????//List?
????????List?elements?=?root.elements();
????????int?size?=?elements.size()?;
????????if?(?size?>?4?)?{
??????????elements.subList(?3,?4?).clear();
??????????assertEquals("List?is?not?clear",size-elements.size()==1,true);
????????}
????}
????
????/**?use?test.xml?test
?????????xpath?->?/project/organization/
?????????<organization>
?????????????<name>MetaStuff?Ltd.</name>
?????????????<url>http://sourceforge.net/projects/dom4j</url>
?????????????<logo>http://sourceforge.net/sflogo.php?group_id=16035</logo>
??????????</organization>?
??????????
??????????xpath?->?/project/dependencies/dependency[groupId='msv']
????????????<dependency>
??????????????<groupId>msv</groupId>
??????????????<artifactId>xsdlib</artifactId>
??????????????<version>20030807</version>
??????????????<url>https://msv.dev.java.net/</url>
????????????</dependency>
????*/
????public?void?testXpath()throws?Exception{
????????XPath?xpathSelector?=?DocumentHelper.createXPath("/project/organization/*");
????????Document?docT?=?new?SAXReader().read(?clo.getResourceAsStream(path)?);
????????List?results?=?xpathSelector.selectNodes(docT);
????????for?(?Iterator?iter?=?results.iterator();?iter.hasNext();?)?{
??????????Element?element?=?(Element)?iter.next();
??????????if(element.getName().equals("name")){
??????????????assertEquals("name?err",?element.getText().equals("MetaStuff?Ltd."),true);
??????????}
??????????if(element.getName().equals("url")){
??????????????assertEquals("url?err",?element.getText().equals("http://sourceforge.net/projects/dom4j"),true);
??????????}
??????????if(element.getName().equals("logo")){
??????????????assertEquals("logo?err",?element.getText().equals("http://sourceforge.net/sflogo.php?group_id=16035"),true);
??????????}
????????}
????????
????????//?select?
????????String?url?=?docT.valueOf(?"/project/dependencies/dependency[groupId='msv']/url"?);
????????assertEquals("Url?err",?url.equals("https://msv.dev.java.net/"),true);
????????Number?count?=?docT.numberValueOf(?"/project/dependencies/dependency[groupId='msv']/version"?);
????????assertEquals("Url?err",?count.intValue()==20030807,true);
????????
????}
????
????public?void?testVisitor(){
????????Visitor?visitor?=?new?VisitorSupport()?{
????????????public?void?visit(Element?element)?{
??????????????System.out.println(
????????????????"Entity?name:?"?+?element.getName()??+?"?text?:"?+?element.getText()
??????????????);
????????????}
??????????};
??????????doc.accept(?visitor?);
????}
????//??element.clone?;??element.createCopy?;???
????public?void?testInsertElementAt()?throws?Exception{
????????Element?root?=?this.doc.getRootElement();
????????Element?oldElement?=?(Element)doc.selectSingleNode("/testElement/author[@name='Toby']");
????????Element?newElement?=?(Element)?oldElement.clone();
????????List?list?=?root.content();
????????list.add(?root.indexOf(oldElement)+1,newElement?);
?????}
????
????
????
????
?????public?void?testSave()throws?Exception{
???????????String?testSaveXml?=?"useDom4j/test/config/testSave.xml";
???????????
???????????testSaveXml?=?classPath+filese+testSaveXml;
??????????
???????????File?file?=?getFile(testSaveXml);
???????????//Save?file.xml?
???????????XMLWriter?writer?=?new?XMLWriter(new?FileOutputStream(?file?));
???????????writer.write(doc);
???????????writer.flush();
?????}
?????
?????
????private?File?getFile(String?testSaveXml)?throws?IOException?{
????????File?file?=?null?;
???????????URL?url?=?clo.getResource(testSaveXml);
???????????if(url==null){
???????????????file?=?new?File(testSaveXml);
???????????????file.createNewFile();
???????????}else{
???????????????file?=?new?File(??url.getFile()?);
???????????}
????????return?file;
????}
????
????
}
引用：http://freezingxu.blog.com.cn/archives/2006/1892647.shtml /**
??*?對指定的節點增加屬性和文本
??*?@param?elmt
??*?@param?name
??*?@param?value
??*?@param?text
??*?@return
??*/
?public?Element?addAttribute(Element?elmt,String?name,String?value){
??elmt.addAttribute(name,value);
??return?elmt;
?}
?
?/**
??*?修改指定節點的屬性和文本
??*?@param?elmt
??*?@param?name
??*?@param?value
??*?@param?text
??*?@return
??*/
?public?Element?setAttribute(Element?elmt,String?name,String?value){
??Attribute?attribute?=?elmt.attribute(name);
??//attribute.setName(name);
??attribute.setValue(value);
??List?list?=?new?ArrayList();
??list.add(attribute);
??elmt.setAttributes(list);
??return?elmt;
?}
?
?/**
??*?刪除指定節點的指定屬性
??*?@param?elmt
??*?@param?name
??*?@return
??*/
?public?Element?removeAttribute(Element?elmt,String?name){
??elmt.remove(elmt.attribute(name));
??return?elmt;
?}
?
?/**
??*?輸出為文件
??*?@param?doc
??*?@throws?IOException
??*/
?public?void?writeFile(Document?doc)?throws?IOException{
??FileWriter?out?=?new?FileWriter(?"d:/newQuery.xml"?);
??doc.write(out);
??out.flush();
??out.close();
?}
看hbn 源代碼 發現用了 CGlib 這就看看這個jar 。特留個文 ^_^(轉）http://www.nirvanastudio.org/java/cglib-%E6%8C%87%E5%8D%97.html
CGlib 就2個例能說明一切? 先是使用類? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? public?class?MyClass?{
?
????public?void?method()?{
????????System.out.println("MyClass.method()");
????}
????public?void?method2()?{
????????System.out.println("MyClass.method2()");
????}
}
例1： import?java.lang.reflect.Method;
?
import?net.sf.cglib.proxy.Enhancer;
import?net.sf.cglib.proxy.MethodProxy;
import?net.sf.cglib.proxy.MethodInterceptor;
?
public?class?Main?{
?
????public?static?void?main(String[]?args)?{
?
????????Enhancer?enhancer?=?new?Enhancer();
??? ??
??? ??? //在這代理了
????????enhancer.setSuperclass(MyClass.class);
????????enhancer.setCallback(?new?MethodInterceptorImpl()?);
?
??????? // 創造 代理 （動態擴展了MyClass類）
????????MyClass?my?=?(MyClass)enhancer.create();
?
????????my.method();
????}
?
????private?static?class?MethodInterceptorImpl?implements?MethodInterceptor?{
????????
????????public?Object?intercept(Object?obj,?
????????????????????????????????Method?method,?
????????????????????????????????Object[]?args,?
????????????????????????????????MethodProxy?proxy)?throws?Throwable?{
?
????????????System.out.println(method);
?
????????????proxy.invokeSuper(obj,?args);
?
????????????return?null;
????????}
????}
} 例2： import?java.lang.reflect.Method;
import?net.sf.cglib.proxy.Enhancer;
import?net.sf.cglib.proxy.MethodProxy;
import?net.sf.cglib.proxy.MethodInterceptor;
import?net.sf.cglib.proxy.NoOp;
import?net.sf.cglib.proxy.Callback;
import?net.sf.cglib.proxy.CallbackFilter;
?
?
public?class?Main2?{
?
????public?static?void?main(String[]?args)?{
?
????????Callback[]?callbacks?=
????????????new?Callback[]?{?new?MethodInterceptorImpl(),??NoOp.INSTANCE?};
?
????????Enhancer?enhancer?=?new?Enhancer();
?
????????enhancer.setSuperclass(MyClass.class);
????????enhancer.setCallbacks(?callbacks?);
??????? //添加 方法過濾器? 返回1為不運行 2 為運行
????????enhancer.setCallbackFilter(?new?CallbackFilterImpl()?);
?
?
????????MyClass?my?=?(MyClass)enhancer.create();
?
????????my.method();
????????my.method2();
????}
?
????private?static?class?CallbackFilterImpl?implements?CallbackFilter?{
?
????????public?int?accept(Method?method)?{
?
????????????if?(?method.getName().equals("method2")?)?{
????????????????return?1;
?
????????????}?else?{
????????????????return?0;
????????????}
????????}
????}
?
????private?static?class?MethodInterceptorImpl?implements?MethodInterceptor?{
????????
????????public?Object?intercept(Object?obj,?
????????????????????????????????Method?method,?
????????????????????????????????Object[]?args,?
????????????????????????????????MethodProxy?proxy)?throws?Throwable?{
?
????????????System.out.println(method);
?
????????????return?proxy.invokeSuper(obj,?args);
????????}
????}
} 簡單不 哈哈 比jdk 中的動態代理好用 ，那還要接口? 不太方便 。
參照： 容器外的JSP頁面測試技術由于上面給出例 復雜 。一般人很難理解。我也是 ^_^ 但仔細看我還是自己寫出一個比較簡單的，望大家一起討論。 被測試jsp
<%@?taglib?prefix="html"?uri="/WEB-INF/struts-html.tld"?%>
<%@?taglib?prefix="c"?uri="/WEB-INF/c-1_0-rt.tld"?%>
<html:html>
????<c:if?test="${name?!=?pass}">
???????${name}??<br>
???????${pass}?<br>
??? ?? <!-- <html:text property="in" ></html:text> -->
????</c:if>
</html:html>
ant直接把他放在 eclipes 工程的根目錄下 build.xml
??? 但有有3個參數要設置 tomcat.home? Tomcat 的地址
??? ??? ??? ??? ??? ??? webapp.path 工程中的根目錄，下面有WEB-INF
??? ??? ??? ??? ??? ??? src 原代碼 （到時候jsp會翻譯成.java
??? ??? ??? ??? ??? ??? ??? ??? ??? 到這個目錄的 org.apache.jsp.jsp 下）
<project?name="Webapp?Precompilation"?default="all"?basedir=".">?
??<!--?tomcat?dir?-->
??<property?name="tomcat.home"?value="D:\Tomcat?5.0"/>
??
??<!--?this=..//WEB-INF?(in?eclipes)??-->
??<property?name="webapp.path"?value=".\WebRoot"/>
??<!--?src?(in?eclipes)?-->
??<property?name="src"?value="./src"/>
??<target?name="jspc">?
????<taskdef?classname="org.apache.jasper.JspC"?name="jasper2"?>?
??????<classpath?id="jspc.classpath">?
????????<pathelement?location="${java.home}/../lib/tools.jar"/>?
????????<fileset?dir="${tomcat.home}/bin">?
??????????<include?name="*.jar"/>?
????????</fileset>?
????????<fileset?dir="${tomcat.home}/server/lib">?
??????????<include?name="*.jar"/>?
????????</fileset>?
????????<fileset?dir="${tomcat.home}/common/lib">?
??????????<include?name="*.jar"/>?
????????</fileset>?
??????</classpath>?
????</taskdef>?
????<jasper2?
?????????????validateXml="false"?
?????????????uriroot="${webapp.path}"?
?????????????webXmlFragment="${webapp.path}/WEB-INF/generated_web.xml"?
?????????????outputDir="${src}"?/>?
??</target>
??<target?name="compile">
????<mkdir?dir="${webapp.path}/WEB-INF/classes"/>
????<mkdir?dir="${webapp.path}/WEB-INF/lib"/>
????<javac?destdir="${webapp.path}/WEB-INF/classes"
???????????optimize="off"
???????????debug="on"?failonerror="false"
???????????srcdir="${src}"?
???????excludes="**/*.smap">
??????<classpath>
????????<pathelement?location="${webapp.path}/WEB-INF/classes"/>
????????<fileset?dir="${webapp.path}/WEB-INF/lib">
??????????<include?name="*.jar"/>
????????</fileset>
????????<pathelement?location="${tomcat.home}/common/classes"/>
????????<fileset?dir="${tomcat.home}/common/lib">
??????????<include?name="*.jar"/>
????????</fileset>
????????<pathelement?location="${tomcat.home}/shared/classes"/>
????????<fileset?dir="${tomcat.home}/shared/lib">
??????????<include?name="*.jar"/>
????????</fileset>
????????<fileset?dir="${tomcat.home}/bin">?
??????????<include?name="*.jar"/>?
????????</fileset>?
??????</classpath>
??????<include?name="**"?/>
??????<exclude?name="tags/**"?/>
????</javac>
??</target>
??<target?name="all"?depends="jspc,compile">
??</target>
??<target?name="cleanup">
??????<delete>
????????<fileset?dir="${webapp.path}/WEB-INF/src"/>
????????<fileset?dir="${webapp.path}/WEB-INF/classes/org/apache/jsp"/>
??????</delete>
??</target>
</project>
TEST
package?jetty.test.supper;
import?javax.servlet.http.HttpServletRequest;
import?javax.servlet.http.HttpServletResponse;
import?org.apache.jsp.jsp.MyJsp_jsp;
import?com.meterware.httpunit.GetMethodWebRequest;
import?com.meterware.httpunit.WebRequest;
import?com.meterware.httpunit.WebResponse;
import?com.meterware.servletunit.InvocationContext;
import?com.meterware.servletunit.ServletRunner;
import?com.meterware.servletunit.ServletUnitClient;
import?junit.framework.TestCase;
public?class?JSPCTest?extends?TestCase{
????private?InvocationContext?ic?=?null?;
????protected?void?setUp()?throws?Exception?{
????????ServletRunner?sr?=?new?ServletRunner();
???????????//?向環境中注冊 jsp
????????sr.registerServlet("HelloWorld",?MyJsp_jsp.class.getName());
????????ServletUnitClient??sc?=?sr.newClient();
????????WebRequest?request?=?new?GetMethodWebRequest("http://localhost/HelloWorld");
?????????ic?=?sc.newInvocation(request);
????}
????
????public?void?testJspC()?throws?Exception{
????????HttpServletRequest?re?=??ic?.getRequest();
????????HttpServletResponse?rq?=??ic.getResponse();
????????re.setAttribute("name","liukaiyi");
????????re.setAttribute("pass","123456");
????????
????????MyJsp_jsp?is?=?(MyJsp_jsp)?ic.getServlet();
????????is._jspService(re,rq);
????????
????????WebResponse?response?=?ic.getServletResponse();
// 輸出
????????System.out.println(?response.getText()?);
????????
????}
}
結果是
<html>
????
???????liukaiyi??<br>
???????123456?<br>
????
????
</html>
后面用 HttpUnit 和 HtmlUnit 測試就不用我說了把 網上一大把。
學習測試留個印
測試 Servlet 使用:
package
?jetty.test.supper;
import
?java.io.File;
import
?javax.servlet.http.HttpServletRequest;
import
?jetty.LoginServlet;
import
?com.meterware.httpunit.GetMethodWebRequest;
import
?com.meterware.httpunit.WebConversation;
import
?com.meterware.httpunit.WebRequest;
import
?com.meterware.httpunit.WebResponse;
import
?com.meterware.servletunit.InvocationContext;
import
?com.meterware.servletunit.ServletRunner;
import
?com.meterware.servletunit.ServletUnitClient;
import
?junit.framework.TestCase;
public
?
class
?HttpUnitTest?
extends
?TestCase?{
????
public
?
void
?ctestUrl()
throws
?Exception{
????????System.out.println(
"
直接獲取網頁內容：
"
);
????????WebConversation?wc?
=
?
new
?WebConversation();
????????WebResponse?wr?
=
?wc.getResponse(?
"
http://www.google.com
"
?);
????????System.out.println(?wr.getText()?);
????}
????
????
public
?
void
?testRun1()
throws
?Exception{
????????System.out.println(
"
無參數測試：
"
);
????????
//
建立服務器
????????ServletRunner?sr?
=
?
new
?ServletRunner(
new
?File(
"
WebRoot\\WEB-INF\\test.xml
"
));
????????
//
模擬客戶端
????????ServletUnitClient?sc?
=
?sr.newClient();
????????
//
URL?定位
????????WebRequest?request???
=
?
new
?GetMethodWebRequest(?
"
http://localhost:7000/cactusDemo
"
?);
????????WebResponse?response?
=
?sc.getResponse(?request?);
????????
//
運行
????????System.out.println(response.getText()
+
"
\n
"
);
????}
????
????
public
?
void
?testRun2()
throws
?Exception{
????????System.out.println(
"
Session?和?request?測試：
"
);
????????ServletRunner?sr?
=
?
new
?ServletRunner(
new
?File(
"
WebRoot\\WEB-INF\\test.xml
"
));
????????ServletUnitClient?sc?
=
?sr.newClient();
????????WebRequest?request???
=
?
new
?GetMethodWebRequest(?
"
http://localhost/cactusDemo
"
?);
????????
//
Parameter?加參?use?
????????request.setParameter(
"
use
"
,
"
web
"
);
????????
????????
//
取出?Servlet?:?LoginServlet?方法準備執行
????????InvocationContext?ic?
=
?sc.newInvocation(?request?);
????????LoginServlet?se?
=
?(LoginServlet)ic.getServlet();
????????HttpServletRequest?re?
=
?ic.getRequest()?;
????????
//
request?session??加參?use?
????????re.setAttribute(
"
use
"
,
"
re
"
);
????????re.getSession(
true
).setAttribute(
"
use
"
,
"
re
"
);
????????se.doGet(re,ic.getResponse());
//
關鍵：運行測試方法
????????
????????
//
獲取?out
????????WebResponse?response?
=
?ic.getServletResponse();
????????System.out.println(response.getText());
????}
}
test.xml
<?
xml?version="1.0"?encoding="UTF-8"
?>
<
web-app?
xmlns
="http://java.sun.com/xml/ns/j2ee"
?xmlns:xsi
="http://www.w3.org/2001/XMLSchema-instance"
?version
="2.4"
?xsi:schemaLocation
="http://java.sun.com/xml/ns/j2ee???http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"
>
??
<
servlet
>
????
<
servlet-name
>
cactusDemo
</
servlet-name
>
????
<
servlet-class
>
jetty.LoginServlet
</
servlet-class
>
??
</
servlet
>
??
<
servlet-mapping
>
????
<
servlet-name
>
cactusDemo
</
servlet-name
>
????
<
url-pattern
>
/cactusDemo
</
url-pattern
>
??
</
servlet-mapping
>
</
web-app
>
測試 JSP:
Cookbook
參考?
不使用容器 進行 測試 jsp
測試Struts:
StrutsTestCase
參考?
|