JSP请求
<%@ 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 'index.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>
使用addFieldError方法和s:fieldError标签简单处理数据校验
<a href="user/User_add?name=a" >添加用户</a>
</body>
</html>
struts.xml文件的配置
<?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>
<constant name="struts.i18n.encoding" value="UTF-8"></constant>
<constant name="struts.ognl.allowStaticMethodAccess" value="true"></constant>
<package name="user" namespace="/user" extends="struts-default">
<action name="*_*" class="com.lbx.action.{1}Action" method="{2}">
<result name="success">/{1}_{2}_success.jsp</result>
<result name="error">/{1}_{2}_error.jsp</result>
<!-- {0}_success.jsp -->
</action>
<action name="regist" class="com.lbx.action.RegistAction">
<result name="input">/regist.jsp</result>
<result>/show.jsp</result>
</action>
</package>
</struts>
通过struts.xml文件找到对应的Action（这里是通过addFileError方法来实现验证）
package com.lbx.action;
import com.opensymphony.xwork2.ActionSupport;
@SuppressWarnings("serial")
public class UserAction extends ActionSupport{
private String name;
public String add() {
System.out.println("name=" + name);
if(name == null || !name.equals("admin")){
this.addFieldError("name", "name is error");
this.addFieldError("name", "name is too long");
return ERROR;
}
return SUCCESS;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
与之相对应的result：
success
<%@ 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 'user_add_success.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>
用户添加成功!!!! <br>
</body>
</html>
input
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@taglib uri="/struts-tags" prefix="s" %>
<%
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 'User_add_error.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>
用户添加失败！！ <br>
<s:fielderror fieldName="name" theme="simple"></s:fielderror>
<br>
<s:property value="errors.name[0]"/>
<s:debug></s:debug>
</body>
</html>
扫一扫
被折叠的 条评论
为什么被折叠?
到【灌水乐园】发言
