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  • Struts2转换小程序(Struts2.3.4)


    1.jsp登陆界面

    <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
    <%
    String path = request.getContextPath();
    String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
    %>
    
    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
    <html>
      <head>
        <base href="<%=basePath%>">
        
        <title>My JSP 'Login2_1.jsp' starting page</title>
        
    	<meta http-equiv="pragma" content="no-cache">
    	<meta http-equiv="cache-control" content="no-cache">
    	<meta http-equiv="expires" content="0">    
    	<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
    	<meta http-equiv="description" content="This is my page">
    	<!--
    	<link rel="stylesheet" type="text/css" href="styles.css">
    	-->
    
      </head>
      
      <body>
       提示:姓名和密码用冒号分开<br/>
    	<form action="userAction.action">
    		User : <input type="text" name="user"/><br>
    		<input type="submit" value="提交"/><br/>
    		
    	
    	
    	</form>
      </body>
    </html>
    

    2.Strtus配置Struts.xml

    <?xml version="1.0" encoding="UTF-8"?>
    <!DOCTYPE struts PUBLIC
    	"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
    	"http://struts.apache.org/dtds/struts-2.3.dtd">
    <struts>
    	<package name="struts2" extends="struts-default">
    		<action name="login" class="Struts2.WildCat.com.LoginAction" method="myExecute">
    			<result name="success">/result.jsp</result>
    		</action>
    		<action name="userAction" class="Struts2.WildCat.com.UserAction">
    			<result name="success">/result2_2.jsp</result>
    		</action>
    		<action name="userAction3" class="Struts2.WildCat.com.UserAction3">
    			<result name="success">/result3_1.jsp</result>
    		</action>
    		<action name="registerAction" class="Struts2.WildCat.com.RegisterAction">
    			<result name="success" >/Register_Result.jsp</result>
    		</action>
    	
    	</package>
    
    </struts>


    3.User类

    package com.WildCat.bean;
    
    public class User {
    
    	private String username;
    	private String password;
    	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;
    	}
    }
    

    4.类型转换配置文件UserAction-conversion.properties

    user=com.WildCat.converter.UserConverter

    5.类型转换器

    package com.WildCat.converter;
    
    import java.util.Map;
    import java.util.StringTokenizer;
    
    import com.WildCat.bean.User;
    import ognl.DefaultTypeConverter;
    
    public class UserConverter extends DefaultTypeConverter {
    
    	@Override
    	public Object convertValue(Map context, Object value, Class toType) {
    		
    		if (User.class==toType)//从页面向后台转换
    		{
    			String[] str=(String[])value;
    			String firstValue=str[0];
    			StringTokenizer st=new StringTokenizer(firstValue,":");
    			String username=st.nextToken();
    			String password=st.nextToken();
    			User user=new User();
    			user.setUsername(username);
    			user.setPassword(password);
    			return user;
    			
    		}
    		else if (String.class==toType)//从后台对象向前台转换
    		{
    			User user=(User)value;
    			String username=user.getUsername();
    			String password=user.getPassword();
    			String userInfo="UserName: "+username+" PassWord: "+password;
    			return userInfo;
    			
    		}
    		
    		return null;
    	}
    	
    	
    }

    6.Action

    package Struts2.WildCat.com;
    
    import com.WildCat.bean.User;
    import com.opensymphony.xwork2.ActionSupport;
    
    public class UserAction extends ActionSupport {
    
    	private User user;
    
    	public User getUser() {
    		return user;
    	}
    
    	public void setUser(User user) {
    		this.user = user;
    	}
    	
    	@Override
    	public String execute() throws Exception {
    		System.out.println("UserName: "+user.getUsername());
    		System.out.println("PassWord: "+user.getPassword());
    		return SUCCESS;
    	}
    }
    


    7.结果界面

    <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
    <%@ taglib prefix="s" uri="/struts-tags"%>
    <%
    String path = request.getContextPath();
    String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
    %>
    
    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
    <html>
      <head>
        <base href="<%=basePath%>">
        
        <title>My JSP 'result2_2.jsp' starting page</title>
        
    	<meta http-equiv="pragma" content="no-cache">
    	<meta http-equiv="cache-control" content="no-cache">
    	<meta http-equiv="expires" content="0">    
    	<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
    	<meta http-equiv="description" content="This is my page">
    	<!--
    	<link rel="stylesheet" type="text/css" href="styles.css">
    	-->
    
      </head>
      
      <body> 
       
    	<s:property value="user"/>
    
    
    
      </body>
    </html>



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  • 原文地址:https://www.cnblogs.com/lixingle/p/3313026.html
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