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Posted on 2006-03-09 02:22 大大毛 閱讀(278) 評(píng)論(0) 編輯 收藏 所屬分類: JAVA
JavaBean類：
??????? DeptBean，用于支持那棵樹(shù)，因?yàn)槭菑囊郧白鳂I(yè)中摳出來(lái)的，所以肯定是不會(huì)通用的，但是改改再用還是可行的。
 import?java.util.*;
  /**?*//**用于支持部門(mén)的Tree視圖
 ?*?@author?tw
?*?xx:主要是通過(guò)setRootDept()方法來(lái)得到一棵樹(shù)所必須的數(shù)據(jù),所需參數(shù)指樹(shù)從哪個(gè)部門(mén)開(kāi)始,我的table的結(jié)構(gòu)如下:
?*?create?table?t_dept?(
?*?dept_id?int?primary?key,????----主鍵
?*?dept_name?varchar( ),?????----顯示用的名稱
?*?dept_sit??varchar()?);???----代表部門(mén)位置的字符串,例如總經(jīng)理室?00,部門(mén)1?0001,部門(mén)2?0002
?*?hasChild()方法用于判斷該部門(mén)是否具有下屬部門(mén)
?*?hasNotShowBrother()方法用于判斷該部門(mén)是否還有尚未處理的同級(jí)部門(mén)
?*?getIndex()方法用于從一個(gè)部門(mén)的位置,得到該部門(mén)在記錄源中的序號(hào)(記錄集是排過(guò)序的)
 ?*/
public?class?DeptBean?{
????public?static?final?int?SIT_STEP=2;
????public?static?final?int?DEPT_ID=0;
????public?static?final?int?DEPT_NAME=1;
????public?static?final?int?DEPT_SIT=2;
????
????private?DbConnector?connector;
????private?ArrayList?data;
????
  ????public?DeptBean(){
 ????}
????public?void?setDbConnector(DbConnector?connector){
????????this.connector=connector;
????}
????/**?*//**設(shè)置根部門(mén)
????*?@param?id:部門(mén)ID
????*/
????public?void?setRootDept(int?id){
????????String?sql;
????????sql="select?dept_sit?from?t_dept?where?dept_id="?+?id;
????????try{
????????????ArrayList?table,row;
????????????table=this.connector.executeQuery(sql);
????????????row=(ArrayList)table.get(0);
????????????
????????????String?sit=(String)row.get(0);
????????????setRootDept(sit);
????????}catch(Exception?e){
????????????System.out.println(e.getMessage());
????????}
????}
????/**?*//**設(shè)置根部門(mén)
????*?@param?sit:部門(mén)位置
????*/
????public?void?setRootDept(String?sit){
????????String?sql;
????????sql="select?dept_id,dept_name,dept_sit?from?t_dept?"?+
????????????????"where?INSTR(dept_sit,'"?+?sit?+
????????????????"')=1?order?by?dept_sit";
????????
????????ArrayList?row;
????????
????????try{
????????????data=this.connector.executeQuery(sql);
????????????System.out.println("共找到"+data.size()+"個(gè)部門(mén)");
????????}catch(Exception?e){
????????????System.out.println(e.getMessage());
????????}
????}
????/**?*//**獲取數(shù)據(jù)
????*/
????public?ArrayList?getData(){
????????return?this.data;
????}
????/**?*//**檢查是/否具有子部門(mén)
?????*?@param?dept_index:data中部門(mén)序號(hào)
?????*/
????public?boolean?hasChild(int?dept_index){
????????boolean?result=false;
????????
????????ArrayList?theDept,nextDept;
????????String?theSit,nextSit;
????????
????????if(dept_index?<?this.data.size()-1){????//還有未處理部門(mén)
????????????
????????????theDept=(ArrayList)this.data.get(dept_index);????????//提取部門(mén)信息
????????????theSit=(String)theDept.get(DeptBean.DEPT_SIT);
????????????nextDept=(ArrayList)this.data.get(dept_index+1);????//提取下一部門(mén)信息
????????????nextSit=(String)nextDept.get(DeptBean.DEPT_SIT);
????????????
????????????if(nextSit.indexOf(theSit)==0){????????//根據(jù)位置進(jìn)行檢查
????????????????result=true;
????????????}
????????????
????????}
????????
????????return?result;
????}
????/**?*//**檢查是/否具有未處理的兄弟部門(mén)
?????*?@param?dept_index:data中部門(mén)序號(hào)
?????*/
????public?boolean?hasNotShowBrother(int?dept_index){
????????boolean?result=false;
????????
????????ArrayList?theDept,nextDept;
????????String?parentSit,theSit,nextSit;
????????
????????if(dept_index?<?this.data.size()-1){????//還有未處理部門(mén)
????????????
????????????theDept=(ArrayList)this.data.get(dept_index);????????//提取部門(mén)信息
????????????theSit=(String)theDept.get(DeptBean.DEPT_SIT);
????????????
????????????if(theSit.length()?>?DeptBean.SIT_STEP){
????????????????parentSit=theSit.substring(0,theSit.length()?-?DeptBean.SIT_STEP);
????????????????//System.out.println(parentSit);
????????????????for(int?i=dept_index+1;i<this.data.size();i++){????//檢查下面部門(mén)
????????????????????nextDept=(ArrayList)this.data.get(i);????//提取下一部門(mén)信息
????????????????????nextSit=(String)nextDept.get(DeptBean.DEPT_SIT);
????????????????????
????????????????????if(nextSit.indexOf(parentSit)==0?&&?nextSit.length()==?theSit.length()){????????//根據(jù)位置進(jìn)行檢查
????????????????????????result=true;
????????????????????????break;
????????????????????}
????????????????????
????????????????}
????????????}
????????????
????????}
????????
????????return?result;
????}
????/**?*//**檢查是/否具有未處理的兄弟部門(mén)
?????*?@param?dept_Sit:data中部門(mén)位置
?????*/
????public?boolean?hasNotShowBrother(String?dept_Sit){
????????return?this.hasNotShowBrother(this.getIndex(dept_Sit));
????}
????/**?*//**得到指定部門(mén)的序號(hào)
????*?@param?dept_Sit:部門(mén)位置
????*/
????public?int?getIndex(String?dept_Sit){
????????int?dept_index=0;
????????ArrayList?theDept;
????????String?theSit;
????????for(int?i=0;i<this.data.size();i++){
????????????theDept=(ArrayList)this.data.get(i);
????????????theSit=(String)theDept.get(DeptBean.DEPT_SIT);
????????????if(theSit.equalsIgnoreCase(dept_Sit)){
????????????????dept_index=i;
????????????????break;
????????????}
????????}
????????return?dept_index;
????}
????
????public?static?void?main(String[]?args)?{
????????
????????DeptBean?bean1=new?DeptBean();
????????
????}
}
JSP：
<%
@page?contentType
=
"
text/html;charset=gb2312
"
%>
<%
@page?
import
=
"
java.io.*
"
%>
<%
@page?
import
=
"
bean.*
"
%>
<
html
>
????
<
style?type
=
'
text/css
'
>
????????A:link
{color:?#
000000
;?TEXT
-
DECORATION:?none;}
????????A:visited?
{COLOR:?#
000000
;?TEXT
-
DECORATION:?none}
????????A:active?
{COLOR:?#3333ff;?TEXT
-
DECORATION:?none}
????????A:hover?
{COLOR:?#3333ff;?TEXT
-
DECORATION:?none}
????
</
style
>
????
<
body?bgcolor
=
'
#FFFFFF
'
>
????
<
jsp:useBean?id
=
'
dept
'
?scope
=
'
page
'
?
class
=
'
bean.DeptBean
'
/>
????
<%
????????DbConnector?connector
=
new
?DbConnector();????
//
新建一個(gè)數(shù)據(jù)庫(kù)連接器
????????dept.setDbConnector(connector);????????????????
//
將連接器與BEAN綁定
????????dept.setRootDept(
"
00
"
);????????????????????????
//
Init?BEAN
????????
????????String?name,sit;
????????String?proId
=
null
,theId;
????????
????????
int
?tmp1;
????????
????????
int
?rooLevel
=
0
,proLevel
=
0
,theLevel
=
0
;
????????java.util.ArrayList?data?
=
?dept.getData(),row
=
null
;????
//
拿出BEAN中的記錄源,定義一個(gè)ROW來(lái)代表行
????????
????????
int
?deptCount
=
data.size();????
//
取得部門(mén)總數(shù)
????????
????????
for
(
int
?dept_index
=
0
;dept_index
<
deptCount;dept_index
++
)?
{
????????????
????????????row
=
(java.util.ArrayList)data.get(dept_index);????
//
取得當(dāng)前部門(mén)資料(id,name,sit)
????????????
????????????theId
=
((Integer)row.get(DeptBean.DEPT_ID)).toString();
????????????theId
=
"
MEMU_
"
?
+
?theId;
????????????
????????????name
=
(String)row.get(DeptBean.DEPT_NAME);
????????????sit
=
(String)row.get(DeptBean.DEPT_SIT);
????????????
????????????theLevel
=
sit.length()
/
DeptBean.SIT_STEP;????
//
計(jì)算當(dāng)前部門(mén)所處級(jí)別
????????????
????????????
????????????
if
(dept_index?
==
?
0
)
{
????????????????
//
根部門(mén)
????????????????rooLevel
=
proLevel
=
theLevel
-
1
;
????????????}
????????????
????????????
????????????
if
(theLevel
>
proLevel)
{????????
//
部門(mén)級(jí)數(shù)遞增
????????????????
//
新建一個(gè)控制表格,控制與當(dāng)前同等級(jí)的部門(mén)
????????????????
if
(dept_index
==
0
)
{
????????????????????out.println(
"
<table?border='0'?cellspacing='0'?width='100%'?cellpadding='0'?height='100%'>
"
);
????????????????????out.println(
"
????<tr>
"
);
????????????????????out.println(
"
????<td?valign='top'?align='left'?style='BORDER-top:?#000000?1px?inset'?bgcolor='#dee7ff'>
"
);
????????????????}
else
{
????????????????????out.println(
"
<table?border='0'?cellspacing='0'?cellpadding='0'?id='
"
?
+
?proId?
+
?
"
d'?style='display:none'>
"
);
????????????????????out.println(
"
????<tr>
"
);
????????????????????out.println(
"
????<td>
"
);
????????????????}
????????????????
????????????????
if
(dept_index
>
0
?
&&
?dept.hasChild(dept_index))
{
????????????????????
//
新建一個(gè)容器表格
????????????????????out.println(
"
<table?style='font-size:10pt'?border='0'?cellspacing='0'?cellpadding='0'>
"
);
????????????????????out.println(
"
????<tr>
"
);
????????????????????out.println(
"
????<td>
"
);
????????????????}
????????????????
????????????}
else
{
????????????????
if
(theLevel
==
proLevel)
{????????
//
同級(jí)部門(mén)
????????????????????
????????????????}
else
{????????????????????????
//
另一支樹(shù)干
????????????????????
//
封閉多層控制表格
????????????????????tmp1
=
0
;
????????????????????
do
{
????????????????????????out.println(
"
????</td>
"
);
????????????????????????out.println(
"
????</tr>
"
);
????????????????????????out.println(
"
</table>
"
);
????????????????????????tmp1
++
;
????????????????????}
while
(tmp1?
<
?(proLevel
-
theLevel
-
1
)
*
2
);
????????????????}
????????????}
????????????
????????????
//
新建一個(gè)數(shù)據(jù)表格
????????????out.println(
"
<table?style='font-size:10pt'?border='0'?cellspacing='0'?cellpadding='0'>
"
);
????????????
//
畫(huà)行首
????????????out.println(
"
????<tr>
"
);
????????????
????????????
//
畫(huà)前導(dǎo)空格
????????????
if
(theLevel?
!=
?
1
)
{
????????????????out.println(
"
????????<td><img?src='images/tree/tree_transp.gif'></td>
"
);
????????????}
????????????
????????????
//
畫(huà)treeline
????????????
for
(tmp1
=
2
;tmp1
<
theLevel;tmp1
++
)
{
????????????????
????????????????String?proSit
=
sit.substring(
0
,tmp1?
*
?DeptBean.DEPT_SIT);
????????????????
if
(dept.hasNotShowBrother(proSit))
{
????????????????????out.println(
"
????????<td><img?src='images/tree/tree_line.gif'></td>
"
);
????????????????}
else
{
????????????????????out.println(
"
????????<td><img?src='images/tree/tree_transp.gif'></td>
"
);
????????????????}
????????????}
????????????
????????????
//
System.out.println(dept_index);
????????????
//
畫(huà)控制線
????????????
if
(dept.hasChild(dept_index))
{
????????????????
//
具有下級(jí)部門(mén)
????????????????
????????????????
if
(dept.hasNotShowBrother(dept_index))
{
????????????????????
//
具有同級(jí)部門(mén)
????????????????????out.println(
"
????????<td><img?src='images/tree/tree_plus.gif'?id='
"
?
+
?theId?
+
?
"
'?class='outline'?style='cursor:hand'></td>
"
);
????????????????}
else
{
????????????????????out.println(
"
????????<td><img?src='images/tree/tree_plusl.gif'?id='
"
??
+
?theId?
+
?
"
'?class='outline'?style='cursor:hand'></td>
"
);
????????????????}
????????????}
else
{
????????????????
if
(dept.hasNotShowBrother(dept_index))
{
????????????????????
//
具有同級(jí)部門(mén)
????????????????????out.println(
"
????????<td><img?src='images/tree/tree_blank.gif'></td>
"
);
????????????????}
else
{
????????????????????out.println(
"
????????<td><img?src='images/tree/tree_blankl.gif'></td>
"
);
????????????????}
????????????}
????????????
????????????
//
畫(huà)名稱
????????????
if
(dept.hasChild(dept_index))
{
????????????????out.println(
"
????????<td><a?href='#'?onclick='
"
?
+
?theId?
+
?
"
.click();openURL(\
""
?+?theId?+?
"
\
"
);'>
"
?
+
?name?
+
?
"
</a></td>
"
);
????????????}
else
{
????????????????out.println(
"
????????<td><a?href='#'?onclick='openURL(\
""
?+?theId?+?
"
\
"
);'>
"
?
+
?name?
+
?
"
</a></td>
"
);
????????????}
????????????
????????????
//
畫(huà)行結(jié)尾
????????????out.println(
"
????</tr>
"
);
????????????
????????????
//
????????????out.println(
"
</table>
"
);
????????????
????????????
//
保留上節(jié)點(diǎn)數(shù)據(jù)
????????????proId
=
theId;
????????????proLevel
=
theLevel;
????????????
????????}
????????
????????
//
封閉全部表格
????????
for
(tmp1?
=
?
0
;tmp1
<
?(theLevel?
-
?rooLevel?
-
1
)
*
2
?
-
?
1
;tmp1
++
)
{
????????????out.println(
"
????</td>
"
);
????????????out.println(
"
????</tr>
"
);
????????????out.println(
"
</table>
"
);
????????}
????????
????????connector.close();
????
%>
????
</
body
>
????
<
script?language
=
'
JavaScript
'
>
????function?clickHandler()?
{
????????var?targetid,srcelement,targetelement;
????????var?strbuf;
????????srcelement?
=
?window.event.srcElement;
????????
if
(srcelement.className?
==
?
'
outline
'
)?
{
????????????targetid?
=
?srcelement.id
+
'
d
'
;
????????????????targetelement?
=
?document.all(targetid);
????????????????
if
?(targetelement.style.display?
==
?
'
none
'
)?
{
????????????????????targetelement.style.display?
=
?
''
;
????????????????????????strbuf?
=
?srcelement.src;
????????????????????????
if
?(strbuf.indexOf?(
'
plus.gif
'
)
>-
1
)
????????????????????????????srcelement.src?
=
?
'
images/tree/tree_minus.gif
'
;
????????????????????????
else
????????????????????????????srcelement.src?
=
?
'
images/tree/tree_minusl.gif
'
;
????????????????}
else
{
????????????????????targetelement.style.display?
=
?
'
none
'
;
????????????????????strbuf?
=
?srcelement.src;
????????????????????
if
?(strbuf.indexOf?(
'
minus.gif
'
)
>-
1
)
????????????????????????srcelement.src?
=
?
'
images/tree/tree_plus.gif
'
;
????????????????????
else
????????????????????????srcelement.src?
=
?
'
images/tree/tree_plusl.gif
'
;
?????????????????}
????????}
????}
????document.onclick?
=
?clickHandler;
????
????function?openURL(URL)?
{
????????
if
?(URL?
==
?
''
)
????????????
return
?
false
;
????????parent.frmShow.location
=
URL;
????}
????
</
script
>
</
html
>
|