一区二区成人,国模精品娜娜一二三区,亚洲国产精品精华液网站

SpringMVC 2.5 的HelloWorld

Sat, 27 Sep 2008 06:31:00 GMT

首先�Q�写一个Bean

package springmvc.one.web;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.ui.ModelMap;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;

@Controller
@RequestMapping("/hellOne.act")
public class HelloOneAction {

@RequestMapping
public String handleRequest(String user,Model model) {
System.out.println("用户名："+user); //GET/POST的入�?br /> model.addAttribute("user", user); //通过Session�q�回到界面的出参
model.addAttribute("helloWord", "Hello");

return "hellouser";
}
}

再写一个JSP��面hellouser.jsp�Q�此��面攑֜� WEB-INF/jsp 目录下，代码如下�Q?br />

HelloPage

Test this sample!

${helloWord}, ${user}!

接着看看web.xml的配�|?br />

xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">

Spring 2.5 App

Spring App Examples

annomvc

org.springframework.web.servlet.DispatcherServlet

annomvc

*.act

最后就是，annomvc.xml 文�g了�?br />

xmlns:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd">

好了�Q�见一个Tomcat工程�Q�在 tomcat 中运行，讉K��下面�q�接�Q�就可以�q�行了�?br />
http://localhost:8080/TOMCAT-PROJECT/hellOne.act?user=gjhuai

水仁�?/a> 2008-09-27 14:31 发表评论

[专业]JS一些知�?0806081757

Sun, 08 Jun 2008 09:58:00 GMT

JS的日期加减函敎ͼ�

function dateAdd(date,dayNum){
var a = date.valueOf();
a = a + dayNum * 24 * 60 * 60 * 1000;
a = new Date(a);
return a;
}

JS把字�W�串装蝲到DOM对象�Q?br> var doc = new ActiveXObject("MSxml2.DOMDocument");
doc.loadXML( xmlStr);

当JS的正则表辑ּ�的pattern需要动态构造时�Q�需要��用RegExp�c�：
patt=new RegExp(today.replace(/\-/g,"\\-")+"((.|\n|\r|\t)+)"+yesterday.replace(/\-/g,"\\-"),"gm");
//patt=new RegExp("2008\-5\-26((.|\n)+)2008\-5\-25","gm");
h = h.replace(patt,yesterday);
而不能��?dd/gm之类��单的pattern

水仁�?/a> 2008-06-08 17:58 发表评论

[专业]Python读gbk�~�码的xml问题-0806072220

Sat, 07 Jun 2008 14:22:00 GMT

Python读xml�Ӟ��如果�~�码不是utf-8或utf-16�Q�就出错�Q�如下：

...

解析�q�个xml文�g代码如下�Q?
from xml.dom import minidom
f = minidom.parse('f:\\temp\\protocol.xml')
print f.toxml()

出现�q�个错误�Q?br> xml.parsers.expat.ExpatError: unknown encoding:

解决办法�Q?

�׃��xml协会规定�Q�所有xml解析器均需要支持utf-8和utf-16两种�~�码而不要求别的�~�码�Q�所以我估计python提供的xml处理模块��是不支持gb2312的。而windows下的文�g�Q�大部分均�ؓgb2312�~�码的，因此处理的时候，��׃��带来不方便的地方�?

�?�Q�利用UltraEdit�{�工��P��xml文�g转换成UTF-8的，然后encoding="utf-8"卛_��
转换工具如果没有�Q�用python可以��单写一个，比如
�Q�以下代码�{�? http://tenyears.cn/?cat=6 �Q?
�Q�－�Q�－�Q�－�Q�－�Q�－
# -*- coding: mbcs -*-
import codecs
f = codecs.open(‘D:\\normal.txt�? ‘rb�? ‘mbcs�?
text = f.read().encode(‘utf-8�?
f.close
f = open(‘d:\\utf8.txt�? ‘wb�?
f.write(text)
f.close()
print text.decode(‘utf-8�?.encode(‘gb2312�?
�Q�－�Q�－�Q�－�Q�－�Q�－�Q�－�Q�－�Q�－�Q?

�?�Q�xml文�g里面不要写入encoding�Q�保持�ؓgb2312本地�~�码�Q�然后程序解析的时候，采用语句
unicode(file('f:\\temp\\a.txt', 'r', 'gb2312').read(),'gb2312').encode('utf-8')
��整个文件�{成utf-8�? String 来处理，处理�l�束后，利用
unicode(string,'utf-8').encode('gb2312')
换成本地的gb码，再将�l�果写回文�g�?

另外�Q�python2.4的普通函数处理字�W�串的时候，好像已经支持各种�~�码了�?br>

水仁�?/a> 2008-06-07 22:22 发表评论

[专业]代码阅读的经�?0806072109

Sat, 07 Jun 2008 13:11:00 GMT

�׃��工作上的原因�Q�我不得不看大量别�h写的代码,�q�是一件很痛苦的事,��其是看既少文档注释,又无良好命名和结构的代码.

有本书叫Code Reading,中文译作代码阅读�Ҏ��与实�? ��单浏览了一遍电子文�? 感觉�q�是隔靴搔痒, �Ҏ��高代码阅��L��率�ƈ无太大的帮助. 自己感觉�q�是以下�Ҏ��有些帮助:
1. 把对代码阅读的认识用�W�或wiki��C��? 最好根据功能结构分�c?可画些辅助理解的框图或思维导图
2. 利用UML工具反向生成些类�?包图, �q�可自己动手��M��些流�E�图,时序囑֒�协作�?br> 3. 利用调试工具,通过设断�?单步调试,设观察哨�{�手�D늜�看到底它是怎么�q�行�?br> 4. 写一些简单的��试�E�序,通过断言,日志来验证自��q��判断
5. 如有可能,和代码的原作者或其他�l�护者一起做Code Review

水仁�?/a> 2008-06-07 21:11 发表评论

Spring 集成��试

Sun, 13 Jan 2008 13:57:00 GMT

8.3.1. Context��理和缓�?/h3>
Spring 中的�?spring-mock.jar 为集成测试提供了一��的支持。所有相关的API在包 org.springframework.test 中，它们不依赖于��M��应用服务器或者其他部�|�环境�?br>
test包里的各�U�抽象类提供了如下的功能�Q?br>
各测试案例执行期间的Spring IoC容器�~�存�?/li>
��试fixture自��n的依赖注入�?/li>
适合集成��试的事务管理�?/li>
�l�承而来的对��试有用的各�U�实例变量�?/li>

test包对加蝲的Context提供�~�存�Q�缓存功能是通过 AbstractDependencyInjectionSpringContextTests �cȝ��一个方法（如下�Q�实现的�Q�此�Ҏ��提供contexts xml的位�|�，且实现这个方法的�c�d��L��供一个包含XML配置文�g位置数组。缺省情况下�Q�一旦加载后�Q�这些配�|�将被所有的��试案例重用�?br>
protected abstract String[] getConfigLocations();

当配�|�环境受到破坏，AbstractDependencyInjectionSpringContextTests �?setDirty() �Ҏ��可以用来重新加蝲配置�Q��ƈ在执行下一个测试案例前重徏application context�?br>

8.3.2. ��试fixture的依赖注�?/h3>AbstractDependencyInjectionSpringContextTests �c�d��从getConfigLocations()�Ҏ��指定的配�|�文件中自动查找你要��试的类�Q?�q��过Setter注入该类的实例�?br>
��单例�?br>
public class HibernateTitleDaoTests extends AbstractDependencyInjectionSpringContextTests {

// 被测试类的实例将被（自动的）依赖注入
private HibernateTitleDao titleDao;

// 一个用来实�?titleDao'实例变量依赖注入的setter�Ҏ��
public void setTitleDao (HibernateTitleDao titleDao) {
this.titleDao = titleDao;
}

public void testLoadTitle() throws Exception {
Title title = this.titleDao.loadTitle(new Long10));
assertNotNull(title);
}

//指定Spring配置文�g加蝲�q�个fixture
protected String[] getConfigLocations() {
return new String[] { "classpath:com/foo/daos.xml" };
}

}

getConfigLocations() 使用的是 �Ҏ��c�d��的自动装�?/font>�Q�autowire byType�Q�来注入的，所以如果你有多个bean都定义�ؓ一个类型，则对�q�些bean你不能用�q�个�Ҏ��。在�q�种情况下你要��?applicationContext 实例变量�Q��ƈ且��?getBean() 来进行显式查找�?br>
如果你的��试案例不��用依赖注入，只要不定义�Q何setters�Ҏ��卛_��Q?或者你可以�l�承 org.springframework.test.AbstractSpringContextTests �c�，它只包括用来加蝲Spring Context的便利方法，�q�且在测试fixture中不�q�行依赖注入�?br>
8.3.3. 事务��理
��试�Ҏ��久存储的数据会有改动。类 AbstractTransactionalDataSourceSpringContextTests 在缺省情况下�Q�对每一个测试案例，他们创徏�q�且回滚一个事务。所以��用这个类��׃��用担心数据被修改�Q�它依赖于Application Context中定义的一个bean PlatformTransactionManager�?br>
如果你确实想在测试时修改数据�Q�可以用�q�个�cȝ�� setComplete() �Ҏ��Q�这��提交而不是回滚事务。另外， endTransaction() �Ҏ��可以在测试结束前中止事务�?br>
8.3.4. 方便的变�?/h3>AbstractDependencyInjectionSpringContextTests �c�L��供了两个保护属性性实例变量：

applicationContext (a ConfigurableApplicationContext): 可以利用它进行显式bean查找�Q�或者作��Z��个整体来��试�q�个Context的状态�?/li>
jdbcTemplate �Q?对确定数据状态的查询很有用�?/li>

8.3.5. �C�Z��
Spring的PetClinic实例展示了这些测试超�cȝ��用法

public abstract class AbstractClinicTests extends AbstractTransactionalDataSourceSpringContextTests {

protected Clinic clinic;

public void setClinic(Clinic clinic) {
this.clinic = clinic;
}

public void testGetVets() {
Collection vets = this.clinic.getVets();
assertEquals('JDBC query must show the same number of vets'�Q?br> jdbcTemplate.queryForInt('SELECT COUNT(0) FROM VETS')�Q?
vets.size());
Vet v1 = (Vet) EntityUtils.getById(vets�Q?Vet.class�Q?2);
assertEquals('Leary'�Q?v1.getLastName());
assertEquals(1�Q?v1.getNrOfSpecialties());
assertEquals('radiology'�Q?((Specialty) v1.getSpecialties().get(0)).getName());
Vet v2 = (Vet) EntityUtils.getById(vets�Q?Vet.class�Q?3);
assertEquals('Douglas'�Q?v2.getLastName());
assertEquals(2�Q?v2.getNrOfSpecialties());
assertEquals('dentistry'�Q?((Specialty) v2.getSpecialties().get(0)).getName());
assertEquals('surgery'�Q?((Specialty) v2.getSpecialties().get(1)).getName());
}

JdbcTemplate 变量用于验证被测试的代码是否正确。JdbcTemplate 让测试更严密�Q�且减少了对��试数据的依赖。例如，可以在不中止��试的情况下在数据库里增加额外的数据行�?br>
PetClinic应用支持四种数据讉K��技术－�Q�JDBC、Hibernate、TopLink和JPA �Q�因�?AbstractClinicTests �c�M��指定Context位置�Q�这个操作在子类中实玎ͼ�

例如�Q�用Hibernate实现的PetClinic��试包含如下�Ҏ��Q?br>
public class HibernateClinicTests extends AbstractClinicTests {

protected String[] getConfigLocations() {
return new String[] {
'/org/springframework/samples/petclinic/hibernate/applicationContext-hibernate.xml'
};
}
}

8.3.6. �q�行集成��试
集成��试比单元测试更依赖于测试环境，它是��试的一个补充，而不是代替单元测试的。这�U�依赖主要指完整数据模型的数据库。也可以通过DbUnit或者数据库工具来导入测试数据�?

水仁�?/a> 2008-01-13 21:57 发表评论

Sentences01

Mon, 07 Jan 2008 00:23:00 GMT

(1) 最高�� + 名词 + that + 主词 + have ever seen /known /heard /had /read)
Helen is the most beautiful girl that I have ever seen.
��u是我所看过最��丽的女孩�?BR>Mr. Zhang is the kindest teacher that I have ever had.
张老师是我曄��遇到最仁慈的教师�?BR>
(2) Nothing is + 比较�U?than to + V
Nothing is more important than to receive education.
没有比接受教育更重要的事�?BR>
(3) ... cannot emphasize the importance of ... too much.�Q�再怎么��...的重要性也不�ؓ�q�。）
We cannot emphasize the importance of protecting our eyes too much.
我们再怎么��保护眼睛的重要性也不�ؓ�q��?BR>
(4) There is no denying /doubt that从句 �Q�不可否认的.../毫无疑问�?..�Q?BR>There is no denying that the qualities of our living have gone from bad to worse.
不可否认的，我们的生�z�d��质已�l�每冉|��下�?BR>There is no doubt that our educational system leaves something to be desired.
毫无疑问的我们的教育制度令�h不满意�?BR>
(5) It is universally acknowledged that从句 �Q�全世界都知�?..�Q?BR>It is universally acknowledged that trees are indispensable to us.
全世界都知道树木�Ҏ��们是不可或缺的�?BR>
(6)、An advantage of ... is that从句 �Q?..的优�Ҏ��...�Q?BR>An advantage of using the solar energy is that it won't create (produce) any pollution.
使用太阳能的优点是它不会刉��Q何污染�?BR>
(7) The reason why定语从句 ... is that + 句子 �Q?..的原因是...�Q?BR>The reason why we have to grow trees is that they can provide us with fresh air.
The reason why we have to grow trees is that they can supply fresh air for us.
我们必须�U�树的原因是它们能供应我们新鲜的�I�气�?BR>
(8) So + 形容�?+ be + 主词 + that从句 �Q�如�?..以致�?..�Q?BR>So precious is time that we can't afford to waste it.
旉��是如此珍贵，我们�l�不��h��费它�?BR>
(9) Adj. + as + 主词 + be, S + V ... �Q�虽�?..�Q?BR>Rich as our country is, the qualities of our living are by no means satisfactory.
{by no means = in no way = on no account 一点也不}
虽然我们的国家富有，我们的生�z�d��质绝对��o��Z��满意�?BR>
(10) 比较�U?+ S + V, 比较�U?+ S + V
The harder you work, the more progress you make.
你愈努力�Q�你愈进步�?BR>The more books we read,the more learned we become.
我们书读愈多�Q�我们愈有学问�?BR>
(11) By +Ving, ... can ... �Q�借着.. , ..能够..�Q?BR>By taking exercise, we can always stay healthy.
借着做运动，我们能够始终保持健康�?BR>
(12) ... enable + 受词 + to + V �Q?.�?.能够..�Q?BR>Listening to music enable us to feel relaxed.
听音乐��我们能够感觉��L��?BR>
(13) On no account can we + V ... �Q�我们绝对不�?..�Q?BR>On no account can we ignore the value of knowledge.
我们�l�对不能忽略知识的�h倹{�?BR>
(14) It is time + S + �q�去�?�Q�该�?..的时候了�Q?BR>It is time the authorities concerned took proper steps to solve the traffic problems.
该是有关当局采取适当的措施来解决交通问题的时候了�?BR>

(15) Those who ... �Q?..的�h...�Q?BR>Those who violate traffic regulations should be punished.
�q�反交通规定的人应该受处罚�?BR>
(16) There is no one but ... �Q�没有�h�?..�Q?BR>There is no one but longs to go to college.
没有��Z��渴望上大学。{long v.渴望}

(17) be + forced /compelled /obliged + to do �Q�不得不...�Q?BR>Since the examination is around the corner, I am compelled to give up doing sports.
既然考试�q�在眉睫�Q�我不得不放弃做�q�动�?BR>
(18) It is conceivable /obvious /apparent that从句 �Q�可惌��知�?/明显�?/昄��的）
It is conceivable that knowledge plays an important role in our life.
可想而知�Q�知识在我们的一生中扮演一个重要的角色�?BR>
(19) That is the reason why ... �Q�那��是...的原因）
Summer is sultry. That is the reason why I don't like it.
夏天很燠热。那��是我不喜欢它的原因�?BR>
(20) For the past + 旉��Q�S + 现在完成�?. �Q�过�?..�q�来�Q?..一�?..�Q?BR>For the past two years, I have been busy preparing for the examination.
�q�去两年来，我一直忙着准备考试�?BR>
(21) Since + S + �q�去式，S + 现在完成式�?BR>Since he went to senior high school, he has worked very hard.
自从他上高中�Q�他一直很用功�?BR>
(22) It pays to + V ... �Q?..是值得的。）
It pays to help others.
帮助别�h是值得的�?BR>
(23) be based on �Q�以...为基��Q?BR>The progress of thee society is based on harmony.
�C�会的进步是以和谐�ؓ基础的�?BR>
(24) Spare no effort to + V �Q�不遗余力的�Q?BR>We should spare no effort to beautify our environment.
我们应该不遗余力的美化我们的环境�?BR>
(25) bring home to + �?+ �?�Q�让...明白...事）
We should bring home to people the value of working hard.
我们应该让�h们明白努力的价倹{�?BR>
(26) be closely related to ... �Q�与...息息相关�Q?BR>Taking exercise is closely related to health.
做运动与健康息息相关�?BR>
(27) Get into the habit of + Ving = make it a rule to + V �Q�养�?..的习惯）
We should get into the habit of keeping good hours.
我们应该��L��早睡早�v的习惯�?BR>
(28) [Due to | Owing to | Thanks to] + N/Ving, ... �Q�因�?..�Q?BR>Thanks to his encouragement, I finally realized my dream.
因�ؓ他的鼓励�Q�我�l�于实现我的梦想�?BR>
(29) [What a + adj. + sth. | How + adj. + sth.] + it is to do sth.�Q�多�?..�Q�）
What an important thing it is to keep our promise!
How important a thing it is to keep our promise!
遵守��是多么重要的事！

(30) leave much to be desired �Q��o��Z��满意�Q?BR>The condition of our traffic leaves much to be desired.
我们的交通状况��o��Z��满意�?BR>
(31) have a great influence on ... �Q�对...有很大的影响�Q?BR>Smoking has a great influence on our health.
抽烟�Ҏ��们的健康有很大的影响�?BR>
(32) do good to �Q�对...有益�Q�，do harm to �Q�对...有害�Q?BR>Reading does good to our mind.
��M��对心灉|��益�?BR>Overwork does harm to health.
工作�q�度对健��h��実�?BR>
(33) pose a great threat to ~~ �Q�对...造成一大威胁）
Pollution poses a great threat to our existence.
污染�Ҏ��们的生存造成一大威胁�?BR>
(34) do one's [utmost | best] to do sth.�Q�尽全力�?..�Q?BR>We should do our utmost to achieve our goal in life.
我们应尽全力去达成我们的人生目标�?BR>
(35) would rather /sooner + V + than + V + (宁愿...也不)
They would rather go fishing than stay at home.
他们宁愿去钓��|��也不愿待在家里�?
She would sooner resign than take part in such dishonest business deals.
她宁可辞职也不愿参与�q�种不正当的买卖.

水仁�?/a> 2008-01-07 08:23 发表评论

Struts 2 Tag用法

Sun, 30 Dec 2007 11:43:00 GMT

append �?iterator

参考：http://www.roseindia.net/struts/struts2/struts2controltags/append-tag.shtml

在Action�cȝ��execute�Ҏ��中，实例化List对象

public String execute()throws Exception{
    myList = new ArrayList();
    myList.add("     myList.add("Deepak Kumar");
    myList.add("Sushil Kumar");
    myList.add("Vinod Kumar");
    myList.add("Amit Kumar");

    myList1 = new ArrayList();
    myList1.add("     myList1.add("Himanshu Raj");
    myList1.add("Mr. khan");
    myList1.add("John");
    myList1.add("Ravi Ranjan");
    return SUCCESS;
}

jsp��面中��用append和iterator两个tag

generator �?iterator

参考：http://www.roseindia.net/struts/struts2/struts2controltags/generator-tag.shtml

在jsp中��用，'www.Roseindia.net,Deepak Kumar,Sushil Kumar,Vinod Kumar,Amit Kumar'�q�些内容被分行的昄��在页面上�?/p>

参考：http://www.roseindia.net/struts/struts2/struts2controltags/GeneratorTagCountAttribute.shtml

count="5" -->在jsp��面中显�C�前5�?br />

count="5" separator=",">





参考：http://www.roseindia.net/struts/struts2/struts2controltags/GeneratorTagIdAttribute.shtml
id="myAtt" />
<%
Iterator i = (Iterator) pageContext.getAttribute("myAtt");
while(i.hasNext()) {
String s = (String) i.next(); %>
<%=s%>

<% }
%>

iterator

参考：http://www.roseindia.net/struts/struts2/struts2controltags/iterator-tag.shtml

在Action�cȝ��execute�Ҏ��中实例化一个List

public String execute()throws Exception{
    myList = new ArrayList();
    myList.add("Fruits");
    myList.add("Apple");
    myList.add("Mango");
    myList.add("Orange");
    myList.add("Pine Apple");
    return SUCCESS;
}

在Jsp中可以通过list的名字来调用

value="myList">

merge

参考：http://www.roseindia.net/struts/struts2/struts2controltags/merge-tag.shtml
在Action�cȝ��execute�Ҏ��中实例化两个List
public String execute() throws Exception{
    myList = new ArrayList();
    myList.add("www.Roseindia.net");
    myList.add("Deepak Kumar");
    myList.add("Sushil Kumar");
    myList.add("Vinod Kumar");
    myList.add("Amit Kumar");

    myList1 = new ArrayList();
    myList1.add("www.javajazzup.com");
    myList1.add("Himanshu Raj");
    myList1.add("Mr. khan");
    myList1.add("John");
    myList1.add("Ravi Ranjan");
    return SUCCESS;
}

在jsp中，用merge tag把两个List合�ƈ�Q�在iterator中用merge的id来调�?br />

%{#mergeId}">

昄��序�Q?br /> Display first element of the first list.
Display first element of the second list.
Display second element of the first list.
Display second element of the second list.
Display third element of the first list.
Display thrid element of the second list.....and so on.

subset

参考：http://www.roseindia.net/struts/struts2/struts2controltags/subsetTag.shtml

public String execute() throws Exception{
    myList = new ArrayList();
    myList.add(new Integer(50));
    myList.add(new Integer(20));
    myList.add(new Integer(100));
    myList.add(new Integer(85));
    myList.add(new Integer(500));
    return SUCCESS;
}

调用Action�c�M��的List






在页面上昄��前三�?br /> count="3">





在页面上昄��?开始的3�?br /> count="3" start="2">

action tag

参考：http://www.roseindia.net/struts/struts2/struts2controltags/action-tag.shtml

The action tag is a generic tag that is used to call actions directly from a JSP page by specifying the action name and an optional namespace. The body content of the tag is used to render the results from the Action. Any result processor defined for this action in struts.xml will be ignored, unless the executeResult parameter is specified.

在struts.xml中定义action映射

/pages/genericTags/success.jsp

public String execute() throws Exception{
return SUCCESS;
}

在jsp��面写入下面代码�Q�那么当��h��actionTag.action�Ӟ��无论Action�c�net.roseindia.actionTag中怎么处理、如何设定页面�{向，此请求直接�{到successs.jsp��面

The action tag will execute the result and include it in this page.

在jsp中调�?br />

RoseIndia

date tag

参考：http://www.roseindia.net/struts/struts2/struts2controltags/date-tag.shtml

private Date currentDate;
public String execute() throws Exception{
setCurrentDate(new Date());
return SUCCESS;
}

Nice Date (Current Date & Time)�Q?lt;s:date name="currentDate" nice="false" />

Nice Date�Q?lt;s:date name="currentDate" nice="true" />

include tage

是不是可以替换frame

Include Tag (Data Tags) Example!

param tag

参考：http://www.roseindia.net/struts/struts2/struts2controltags/param-tag.shtml

        Vinod

        Amit

        Sushil

Case 1. Amit Here the value would be evaluated to the stack as a java.lang.String object.
Case 2. Here the value would be evaluated to the stack as a java.lang.Object object.

set tag

参考：http://www.roseindia.net/struts/struts2/struts2controltags/set-tag.shtml

set tag�l�指定范围内的变量赋��|��得到name-value值对
赋��|��
调用�Q�Technology Name:

set tag is used to assign a value to a variable in a specified scope. The parameters name and value in the tag acts as the name-value pair. Here we set the parameters as name="technologyName" value="Java".

Text Tag

参考：http://www.roseindia.net/struts/struts2/struts2controltags/text-tag.shtml

�?struts.xml 文�g中定�?/p>

/pages/genericTags/textTag.jsp

在textTag.java文�g所在包下，创徏一�?span style="font-weight: bold">package.properties�Q�内容如下：

webname1 = http://www.RoseIndia.net
webname2 = http://www.javajazzup.com
webname3 = http://www.newstrackindia.com

在jsp文�g调用�Q�如下，前三行显�C�package.properties对应信息�Q�第四行昄��Vinod, Amit, Sushil, .......�Q�最后一行empname

Vinod, Amit, Sushil, .......

property tag

参考：http://www.roseindia.net/struts/struts2/struts2controltags/property-tag.shtml

定义个JavaBean

public class companyName {

private String name;

public void setName(String name){
this.name =name ;
}

public String getName(){
return name;
}
}

�W�二行给companyName的name属性赋��|��W�三行显�C��|��RoseIndia�Q�，相当于调用了getName()�Ҏ��Q�，

RoseIndia

it prints the result of myBean's getMyBeanProperty() method.
it prints the result of companyName's
getName() method and if it is null, print 'a default value' instead.

水仁�?/a> 2007-12-30 19:43 发表评论

Sun, 30 Dec 2007 10:02:00 GMT

在ActionSupport子类的execute�Ҏ��中存储session
Map session = ActionContext.getContext().getSession();
session.put("logged-in","true");

同样在execute�Ҏ��中，可以清除session变量
Map session = ActionContext.getContext().getSession();
session.remove("logged-in");

在jsp的head部分引入css文�g

href="" rel="stylesheet" type="text/css"/>

在jsp讉K��session
session Time: <%=new Date(session.getLastAccessedTime())%>

Logout

jsp中��用struts-tag讉K��session变量
="#session.login != 'admin'">

水仁�?/a> 2007-12-30 18:02 发表评论

Fri, 28 Dec 2007 03:52:00 GMT

Java子类对象可以强制转换为父�c�d��象，但是子类对象数字不能强制转换为父�c�d��象数�l?br>如下�Q?br>
public void test(Number n){...}

test(new Float(2)); // �q�是正确�?br>
public void test2(Number n[]){...}

Float t[] = {new Float(5),
new Float(2),};

test2(t); //�q�是�~�译不通过的，会出��C��可�{换的�c�d��错误

水仁�?/a> 2007-12-28 11:52 发表评论

TestLoginWeb

Fri, 28 Dec 2007 03:25:00 GMT

01 /**
02 * 本程序可以模拟web��d��。向服务器端提交数据�?/FONT>
03 * 1、向服务器post多个参数�Ӟ��如何做？
04 * 2、如何取得一个连接的Cookie和sessionId?
05 * 3、如何��用sessionId讉K��一个网站？
06 */
07
08 import java.io.BufferedReader;
09 import java.io.IOException;
10 import java.io.InputStreamReader;
11 import java.io.OutputStream;
12 import java.net.HttpURLConnection;
13 import java.net.URL;
14
15
16 public class TestLoginWeb {
17
18 public static void main(String args[]) throws IOException {
19
20 URL url = new URL("http://localhost:8080/backgroundH/login.jsp");
21 URL url1 = new URL("http://localhost:8080/backgroundH/execute.jsp");
22 HttpURLConnection huc = (HttpURLConnection) url.openConnection();
23
24 // 讄��允许output
25 huc.setDoOutput(true);
26 // 讄��为post方式
27 huc.setRequestMethod("POST");
28 huc.setRequestProperty("user-agent", "mozilla/4.7 [en] (win98; i)");
29
30 OutputStream os = huc.getOutputStream();
31 // 多个参数的输出时�Q�需要用&�q�接�Q��ƈ转换成bytes
32 os.write("name=gaolei".getBytes("gbk"));
33 os.close();
34
35 BufferedReader br = new BufferedReader(
36 new InputStreamReader(huc.getInputStream()));
37
38 huc.connect();
39 String line = br.readLine();
40
41 while (line != null) {
42 System.out.println(line);
43 line = br.readLine();
44 }
45
46 // 取得cookie
47 String cookieval = huc.getHeaderField("set-cookie");
48
49 System.out.println(cookieval);
50 String sessionid = null;
51
52 // 取得cookie�Q�这�D�代码对于不同网站不同，因�ؓ有的�|�站有多个session标识
53 if (cookieval != null) {
54 sessionid = cookieval.substring(0, cookieval.indexOf(";"));
55 }
56
57 huc.disconnect();
58 huc = null;
59
60 HttpURLConnection huc1 = (HttpURLConnection) url1.openConnection();
61 // 使用sessionId讉K��一个网�?/FONT>
62 huc1.setRequestProperty("cookie", sessionid);
63 // 讄��允许output
64 huc1.setDoOutput(true);
65 // 讄��为post方式
66 huc1.setRequestMethod("POST");
67 huc1.setRequestProperty("user-agent", "mozilla/4.7 [en] (win98; i)");
68
69 OutputStream os1 = huc1.getOutputStream();
70
71 os1.write("value=1234567890".getBytes("gbk"));
72 os1.close();
73
74 BufferedReader br1 = new BufferedReader(
75 new InputStreamReader(huc1.getInputStream()));
76
77 huc1.connect();
78 line = br1.readLine();
79 while (line != null) {
80 System.out.println(line);
81 line = br1.readLine();
82 }
83 huc1.disconnect();
84
85 }
86 }
87

�W?1行，关于POST多个参数到服务器端，可以参照下面代码�Q?/P>

StringBuffer params = new StringBuffer("typeid=");
params.append(args[0]).append("&");
params.append("keyword=").append(args[1]);

os.write(params.toString().getBytes("gb2312"));

水仁�?/a> 2007-12-28 11:25 发表评论