在action中使用sql按目錄的方式查詢出部門記錄，其中包括部門名稱，部門ID，部門父ID。頂頭的記錄的部門父ID必須為-1，查詢語句如：
select dept_id,dept_name,parent_id from info_dept connect by prior dept_id = parent_id start with dept_id=?
把獲得的list記錄set到request中，在頁面中顯示出來。
頁面代碼如下:
< link href ="<%=request.getContextPath()%>/gdnumweb/css/dtree.css" rel ="stylesheet" type ="text/css" >
< body >
< script type ="text/javascript" src ="<%=request.getContextPath()%>/gdnumweb/js/dtree.js" ></ script >
< div class ="dtree" >
< p >< a href ="javascript: tree.openAll();" > 展開所有 </ a > | < a href ="javascript: tree.closeAll();" > 關閉所有 </ a ></ p >
< script language ="javascript" type ="text/javascript" >
tree = new dTree(‘tree‘);
< logic:iterate id = " dept " name = " list " >
tree.add( " <bean:write name= " dept " property= " dept_id " /> " , " <bean:write name= " dept " property= " parent_id " /> " , " <bean:write name= " dept " property= " dept_name " /> " ,‘ <%= path %>/ gdnumUserDept. do ? method = getDeptUserInfo & deptNo =< bean:write name = " dept " property = " dept_id " /> ‘,‘‘,‘mainframe‘);
</ logic:iterate >
document.write(tree);
</ script >
在組合框中輸出樹形目錄
獲取列表的java方法
//提取當前用戶的部門下拉
public List getSourceDept(String deptNo) {
List list = null;
Connection con = CommonUtils.currentSession().connection();
ResultSet rs = null;
ResultSetMetaData rsmd = null;
java.sql.PreparedStatement ps = null;
String sql = "select deptno,(tools.buildTree(level)||deptname) deptname from sys_dept "
+ "connect by parent_deptno=prior deptno "
+ "start with deptno=?";
HashMap map = null;
try {
ps = con.prepareStatement(sql);
ps.setString(1, deptNo);
rs = ps.executeQuery();
//System.out.println("rs.size:" + rs.getFetchSize());
rsmd = rs.getMetaData();
list = new ArrayList();
while (rs.next()) {
map = new HashMap();
for (int i = 1; i <= rsmd.getColumnCount(); i++) {
map.put(rsmd.getColumnName(i).toLowerCase(), rs.getString(i));
}
list.add(map);
}
rs.close();
}
catch (Exception ex) {
log.error("提取當前用戶的部門下拉出錯com.unicom.gzmas.reports.bo.getSourceDept:" + ex);
}
finally {
CommonUtils.closeSession();
}
return list;
}
頁面輸出的代碼
<select id="mbackdept"> <!-- 部門 -->
<option value="all">-----全部----</option>
<logic:iterate id="l" name="target">
<option value="<bean:write name="l" property="deptno"/>"><bean:write name="l" property="deptname"/></option>
</logic:iterate>
</select>
構造樹的存儲過程
/*構造樹*/
Function Buildtree(In_Level In Number) Return Varchar2 As
Result Varchar2(4000);
Begin
If In_Level = 1 Then
Return Null;
End If;
Return ‘|‘ || Incstring(‘－‘, (In_Level - 1) * 2);
End;
