Struts2 一些常见的标签的使用

直接贴后台代码:

package com.struts2.action;
import java.util.HashMap;
import java.util.Locale;
import java.util.Map;

import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;
import com.struts2.localeutil.LocaleUtil;
import com.struts2.model.User;
import com.sun.org.apache.xml.internal.utils.LocaleUtility;
public class UserAction  extends ActionSupport{
	
	private static final long serialVersionUID = -1905893698092880349L;
	private final Map<String,Locale> localMap = new HashMap<String, Locale>();

	private String id;
	private String username;
	private String password;
	private String language;
	private Map<String, Locale> langugeMap;
	
	public UserAction(){
		this.langugeMap = new HashMap<String, Locale>();
		this.setLangugeMap(getcurrLocalMapMethod());
	}
	public Map<String, Locale> getLangugeMap() {
		return langugeMap;
	}
	public void setLangugeMap(Map<String, Locale> langugeMap) {
		this.langugeMap = langugeMap;
	}
	
	public String getLanguage() {
		return language;
	}
	public void setLanguage(String language) {
		this.language = language;
	}
	public String getId() {
		return id;
	}
	public void setId(String id) {
		this.id = id;
	}
	public String getUsername() {
		return username;
	}
	public void setUsername(String username) {
		this.username = username;
	}
	public String getPassword() {
		return password;
	}
	public void setPassword(String password) {
		this.password = password;
	}
	
	public Map<String,Locale> getcurrLocalMapMethod(){
		localMap.put("简体中文", Locale.CHINA);
		localMap.put("English", Locale.ENGLISH);
		localMap.put("繁体中文", Locale.TAIWAN);
		localMap.put("日本の言語",Locale.JAPAN);
		localMap.put("Americanese English", Locale.US);
		return localMap;
	}
	
	/**
	 * 登陆方法；
	 * @return String;
	 */
	@SuppressWarnings("unchecked")
	public String login(){
		this.id = "1001";
		
		//判断;
		if(this.username.equals("zhouhaitao") && this.password.equals("123456")){
			//ActionContext.getContext.相当于request.setAttribuet()一样;
			ActionContext.getContext().put("id",id);
			
			//保存到session当中;
			ActionContext.getContext().getSession().put("name", this.username+"登陆成功!");
			return "yes";
		}else{
			return "no";
		}
	}
	
	/**
	 * 注册方法；
	 */
	public String regester(){
		System.out.println("调用注册的方法.开始注册!");
		System.out.println(this.id);
		System.out.println(this.username);
		System.out.println(this.password);
		ActionContext.getContext().put("name",this.username+"注册成功!");
		return "yes";
	}
	
	/**
	 * 获取选择的语言;
	 * @return
	 */
	public String getSelectLanguge(){
		System.out.println("获取的语言是:"+this.language);
		
		String[] str= this.language.split("_");
		Locale locale2 = null;
		Locale locale1 = null;
		
		
		if(str.length>2){
			locale1 = LocaleUtility.langToLocale(this.language.split("_")[1]);
			locale2 = LocaleUtil.toLocale(this.language.split("_")[1]);
		}else{
			locale1 = LocaleUtility.langToLocale(this.language.split("_")[0]);
			locale2 = LocaleUtil.toLocale(this.language.split("_")[0]);
		}
		System.out.println("1通过转换后的语言是:"+locale1.getLanguage());
		System.out.println("2通过转换后的语言是:"+locale2.getLanguage());
		
		return "index";
	}
}

 

   DemoAction :

   

package com.struts2.action;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import org.apache.struts2.ServletActionContext;
import com.opensymphony.xwork2.ActionSupport;
import com.struts2.model.User;

public class DemoAction extends ActionSupport{

	private static final long serialVersionUID = 6021481463050081906L;
	private List<String> stuList;
	private List<User> userList;
	private Map<String, User> userMap;
	private int sid;
	private String sname;
	private String address;
	
	@SuppressWarnings("unchecked")
	public String displayStudentList(){
		stuList = new ArrayList<String>();
		stuList.add("ZhouHaiTao");
		stuList.add("LiuJing");
		stuList.add("ZengPing");
		stuList.add("ZhangSan");
		ServletActionContext.getContext().getSession().put("stuList", stuList);
		ServletActionContext.getContext().put("selectFruit", sname);
		return "display";
	}
	
	public String onClickUrl(){
		ServletActionContext.getContext().put("urlMsg", "你单击了超链接,提交至Action中!");
		return "display";
	}
	
	
	public List<User> getUserList() {
		return userList;
	}


	public void setUserList(List<User> userList) {
		this.userList = userList;
	}


	public Map<String, User> getUserMap() {
		return userMap;
	}


	public void setUserMap(Map<String, User> userMap) {
		this.userMap = userMap;
	}


	public List<String> getStuList() {
		return stuList;
	}
	public void setStuList(List<String> stuList) {
		this.stuList = stuList;
	}
	public int getSid() {
		return sid;
	}
	public void setSid(int sid) {
		this.sid = sid;
	}
	public String getSname() {
		return sname;
	}
	public void setSname(String sname) {
		this.sname = sname;
	}
	public String getAddress() {
		return address;
	}
	public void setAddress(String address) {
		this.address = address;
	}
	
	
}

 

    

 

直接贴前台代码:

 

<%@ page language="java" contentType="text/html; charset=utf-8"
    pageEncoding="utf-8"%>
<%@ taglib prefix="s" uri="/struts-tags"%>    
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Struts2标签使用</title>
	<script type="text/javascript">
		function commitToDemoAction(){
			document.getElementById("myform").action="demo!displayStudentList.action";
		}
	</script>
</head>
<body>
	<center>
		<h1>Struts2 标签使用大全</h1>
	</center>
		
	<s:form id="myform" name="myform" method="post" theme="simple">
		<b>标签一(s:submit的标签使用)</b><br/>
		<s:submit id="bid" onclick="commitToDemoAction()" value="提交到Action中获取数据" cssStyle="border:1px solid blue"/><br/><br/>
		
		<b>标签二(s:iterator的标签使用)</b><br/>
		显示结果如下:
		<br/>
		<s:iterator id="stuid" status="sta" value="stuList">
			${stuid }&nbsp;&nbsp;
		</s:iterator>
		
		<br/><br/>
		<b>标签三(s:if..s:else的标签使用)</b><br/>
		<s:if test="sid == 10">
			sid等于10
		</s:if>
		<s:else>
			sid不等于10
		</s:else>
		
		<br/><br/>
		<b>标签四(s:a的标签使用)</b><br/>
		<s:a id="sid" cssStyle="color:blue" label="超链接" value="100" href="/Struts2/demo/demo!onClickUrl.action">Struts2超级接的使用</s:a>
		<font color="red">${request.urlMsg }</font>
		
		<br/><br/>
		<b>标签五(s:bean的标签使用)直接取得后台User对象的值</b><br/>
		<s:bean name="com.struts2.model.User" id="sbean" />
		<table id="tid" border="1px" style="color:blue;width:400px" cellpadding="0px" cellspacing="0px">
			<tr>
				<td>${sbean.userId } </td>
				<td>${sbean.userName }</td>
				<td>${sbean.userAge }</td>
				<td>${sbean.userAddress }</td>
			</tr>
		</table> 
		
		<br/><br/>
		<b>标签六(s:checkbox的标签使用)struts2的checkbox标签在使用的时候需要注意它的两个属性。value和fieldValue，在其他的标签中value是真实值。而在checkbox中，value如果为true，就表示复选框被选中；如果为false就表示不被选中。fieldValue才是此复选框对应的真实的值</b><br/>
		苹果：<s:checkbox fieldValue="苹果"  value="false"  name="sname"/>
		鸭梨：<s:checkbox fieldValue="鸭梨" value="false"   name="sname"/>
		香蕉: <s:checkbox fieldValue="香蕉" value="false"  name="sname"/>
		葡萄: <s:checkbox fieldValue="葡萄" value="true"   name="sname"/>
		<br/>
		你选择的水果是: <font color="red">${request.selectFruit }</font>
	</s:form>
	
</body>
</html>

 

Struts2.xml配置文件:

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN" "http://struts.apache.org/dtds/struts-2.0.dtd" >
<struts>
	
	<!-- 可以引用其他的配置文件 -->
	<include file="struts-default.xml"></include>
		
	<!-- name代表包的名称 extends代表引用其他的默认文件，namespace代表命名空间，可选-->
	<package name="com.struts2.action" extends="struts-default">
		<!-- 公用的结果 -->
		<global-results>
			<result name="index">/index.jsp</result>
		</global-results>
		
		<!-- name 代表action名称，与struts1的path类似 -->
		<action name="user" class="com.struts2.action.UserAction">
			<result name="yes" type="dispatcher">success.jsp</result>
			<result name="no" type="redirect">failure.jsp</result>
		</action>
		
		<action name="demo" class="com.struts2.action.DemoAction">
			<result name="display" type="dispatcher">/demo/displayData.jsp</result>
		</action>
	</package>
</struts>