ajax实现联动菜单.doc

2010-05-27
HYPERLINK"http://x125521853.javaeye.com/blog/676624"ajax联动菜单
文章分类:HYPERLINK"http://www.javaeye.com/blogs/category/web"Web前端
//model层：Area.java
Java代码
packagecom.wdpc.ajax.model;

publicclassArea{
privateintareaId;//市id
privateStringareaName;//区域名
privateintareaPid;//区域id

//构造函数
publicArea(intareaId,StringareaName,intareaPid){
super();
this.areaId=areaId;
this.areaName=areaName;
this.areaPid=areaPid;
}

//get,set方法
publicintgetAreaId(){
returnareaId;
}

publicvoidsetAreaId(intareaId){
this.areaId=areaId;
}

publicStringgetAreaName(){
returnareaName;
}

publicvoidsetAreaName(StringareaName){
this.areaName=areaName;
}

publicintgetAreaPid(){
returnareaPid;
}

publicvoidsetAreaPid(intareaPid){
this.areaPid=areaPid;
}
}
packagecom.wdpc.ajax.model;

publicclassArea{
privateintareaId;//市id
privateStringareaName;//区域名
privateintareaPid;//区域id

//构造函数
publicArea(intareaId,StringareaName,intareaPid){
super();
this.areaId=areaId;
this.areaName=areaName;
this.areaPid=areaPid;
}

//get,set方法
publicintgetAreaId(){
returnareaId;
}

publicvoidsetAreaId(intareaId){
this.areaId=areaId;
}

publicStringgetAreaName(){
returnareaName;
}

publicvoidsetAreaName(StringareaName){
this.areaName=areaName;
}

publicintgetAreaPid(){
returnareaPid;
}

publicvoidsetAreaPid(intareaPid){
this.areaPid=areaPid;
}
}

//dao层：
Java代码
packagecom.wdpc.ajax.comms;

importjava.sql.Connection;
importjava.sql.PreparedStatement;
importjava.sql.ResultSet;
importjava.sql.SQLException;
importjavax.naming.Context;
importjavax.naming.InitialContext;
importjavax.sql.DataSource;

publicclassDbManager{
publicstaticConnectiongetConnection(){
Connectionconn=null;
try{
Contextcontext=newInitialContext();
DataSourceds=(DataSource)context.lookup("java:comp/env/jdbc/ajax");
conn=ds.getConnection();
}catch(Exceptione){
e.printStackTrace();
}
returnconn;
}

publicstaticvoidcloseConnection(Connectionconn,PreparedStatementpst,ResultSetrs){
try{
if(rs!=null){
rs.close();
}