Strrts2基于Annotation的输入验证-优快云博客

客户端jsp请求Action代码

<%@ 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 'login.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">
	
	<script type="text/javascript">
		function abc(id){
			var buttonObj = document.getElementById(id);
			buttonObj.style.color="red";
		}
		function efg(id){
			var buttonObj = document.getElementById(id);
			buttonObj.style.color="black";
		}
	</script>
	
  </head>
  
  <body>
  	<s:debug></s:debug>
  	
    <form action="login.action" method="post">
    	<table align="center">
    		<caption><h2>用户登录</h2></caption>
    		
    		<tr>
    			<td style="font-style: inherit;color: green">用户名：<input type="text" name="username" style="color: red;background: #fffddd" /><s:property value="errors.username"/></td>
    		</tr>
			<tr>
				<td style="font-style: inherit;color: green">密&nbsp;&nbsp;码：<input type="password" name="password" style="color: red;background: #fffddd"/></td>
			</tr>
			<tr align="center">
				<td colspan="2"><input id="1" onmouseover="javascript:abc(this.id)" onmouseout="javascript:efg(this.id)" style="color: black" type="submit" value="登录"/>
				<input type="reset" id="2" onmouseover="javascript:abc(this.id)" onmouseout="javascript:efg(this.id)" style="color: black" value="重填" /></td>
			</tr>
    	</table>
    </form>
  </body>
</html>

Action处理，这里是关键

package com.lbx.action;

import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.validator.annotations.RequiredStringValidator;
import com.opensymphony.xwork2.validator.annotations.Validation;
import com.opensymphony.xwork2.validator.annotations.ValidatorType;

@SuppressWarnings({ "deprecation", "serial" })
@Validation
public class LoginAction extends ActionSupport{
	
	private String username;
	private String password;
	
	//封装处理结果的tip属性
	private String tip;
	
	public String getTip() {
		return tip;
	}
	public void setTip(String tip) {
		this.tip = tip;
	}
	public String getUsername() {
		return username;
	}
	@RequiredStringValidator(type=ValidatorType.FIELD,key="用户名必须写",message=" ")
	public void setUsername(String username) {
		this.username = username;
	}
	public String getPassword() {
		return password;
	}
	@RequiredStringValidator(type=ValidatorType.FIELD,key="密码必须写",message=" ")
	public void setPassword(String password) {
		this.password = password;
	}
	@Override
	public String execute() throws Exception {
		if(this.getUsername().equals("libinxuan")){
			ActionContext.getContext().getSession().put("user", this.getUsername());
			this.setTip("欢迎," + this.getUsername() + ",你已经登录了！！");
			return SUCCESS;
		}
		this.setTip("登录失败，请重新再登录");
		return ERROR;
	}
	
}

struts.xml的配置

<?xml version="1.0" encoding="GBK"?>
<!-- 指定Struts 2配置文件的DTD信息 -->
<!DOCTYPE struts PUBLIC
	"-//Apache Software Foundation//DTD Struts Configuration 2.1//EN"
	"http://struts.apache.org/dtds/struts-2.1.dtd">
<!-- struts是Struts 2配置文件的根元素 -->
<struts>
	
	<package name="login" namespace="/" extends="struts-default">
		<action name="login" class="com.lbx.action.LoginAction">
			<result name="input">/login.jsp</result>
			<result>/success.jsp</result>
			<result name="error">/error.jsp</result>
		</action>
		
	</package>

</struts>