http://localhost:8080/SSHLearning/tags/ssh_tree.action
struts.xml
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.1//EN" "http://struts.apache.org/dtds/struts-2.1.dtd">
<struts>
<package name="com.ssh.tags" extends="struts-default" namespace="/tags">
<action name="ssh_*" class="com.ssh.actions.ExampleAction" method="{1}">
<result name="success">/WEB-INF/pages/tags/{1}.jsp</result>
</action>
</package>
</struts>
bean
package com.ssh.beans;
import java.util.List;
public class AreaInfo {
private int id;
private String areaName;
private String phoneNo;
private String postCode;
private List<AreaInfo> areas;
public AreaInfo(int id, String areaName) {
super();
this.id = id;
this.areaName = areaName;
}
public AreaInfo() {
}
public AreaInfo(int id, String areaName, String phoneNo, String postCode) {
super();
this.id = id;
this.areaName = areaName;
this.phoneNo = phoneNo;
this.postCode = postCode;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getAreaName() {
return areaName;
}
public void setAreaName(String areaName) {
this.areaName = areaName;
}
public List<AreaInfo> getAreas() {
return areas;
}
public void setAreas(List<AreaInfo> areas) {
this.areas = areas;
}
public String getPhoneNo() {
return phoneNo;
}
public void setPhoneNo(String phoneNo) {
this.phoneNo = phoneNo;
}
public String getPostCode() {
return postCode;
}
public void setPostCode(String postCode) {
this.postCode = postCode;
}
}
Action
package com.ssh.actions;
import java.util.ArrayList;
import java.util.List;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;
import com.ssh.beans.AreaInfo;
public class ExampleAction extends ActionSupport {
public String tree(){
List<AreaInfo> listPro = new ArrayList<AreaInfo>();// 省集合
AreaInfo pro = new AreaInfo(1, "福建");// 省
List<AreaInfo> listCitys = new ArrayList<AreaInfo>();// 省对应的城市集合
listCitys.add(new AreaInfo(10, "福州"));
listCitys.add(new AreaInfo(11, "厦门"));
listCitys.add(new AreaInfo(12, "泉州"));
pro.setAreas(listCitys);// 将城市添加到省里
listPro.add(pro);// 将省添加到省集合里
pro = new AreaInfo(2, "江西");// 省
listCitys = new ArrayList<AreaInfo>();// 省对应的城市集合
listCitys.add(new AreaInfo(20, "南昌"));
listCitys.add(new AreaInfo(21, "九江"));
listCitys.add(new AreaInfo(22, "赣州"));
pro.setAreas(listCitys);// 将城市添加到省里
listPro.add(pro);// 将省添加到省集合里
ActionContext.getContext().put("listPro", listPro);
return SUCCESS;
}
}
jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ taglib uri="/struts-tags" prefix="s"%>
<%@ taglib uri="/struts-dojo-tags" prefix="sx"%>
<html>
<head>
<sx:head />
</head>
<body>
<s:iterator value="#listPro">
<sx:tree label="%{areaName}">
<s:iterator value="%{areas}">
<sx:treenode label="%{areaName}"></sx:treenode>
</s:iterator>
</sx:tree>
</s:iterator>
</body>
</html>