web14 validation.xml配置 登录验证文件配置
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应用Struts验证框架并对用户登录页面进行输入验证。
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1、配置Struts2环境（web08），web.xml中注册过滤器。
2、UserAction类
package dog; import com.opensymphony.xwork2.ActionSupport; public class UserAction extends ActionSupport{ private static final long serialVersionUID=1L; private String username; private String password; //用户登录 @Override public String execute() throws Exception{ return SUCCESS; } 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; } }
3、struts.xml配置
<?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> <!-- 开发模式打开 --> <constant name="struts.devMdoe" value="true"/> <!-- 声明包 --> <package name="myPackage" extends="struts-default"> <!-- 定义action --> <action name="userAction" class="dog.UserAction"> <!-- 用户登录页面 --> <result name="input">/login.jsp</result> <!-- 定义成功的映射页面 --> <result>/success.jsp</result> </action> </package> </struts>
4、创建login.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> <%@ taglib prefix="s" uri="/struts-tags" %> <!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"> <!-- <link rel="stylesheet" type="text/css" href="styles.css"> --> </head> <body> <s:form action="userAction" methode="post"> <s:textfield name="username" label="用户名" required="true"></s:textfield> <s:password name="password" label="密码" required="true"></s:password> <s:submit key="submit" value="登录"></s:submit> </s:form> </body> </html>
success.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> <%@ taglib prefix="s" uri="/struts-tags" %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <base href="<%=basePath%>"> <title>My JSP '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> <s:property value="username"/>，登录成功 </body> </html>
5、编写用户登录验证文件，UserAction-validation.xml，必须放在UserAction.java中。
<!DOCTYPE validators PUBLIC
"-//Apache Struts//XWork Validator 1.0.2//EN"
"http://struts.apache.org/dtds/xwork-validator-1.0.2.dtd">
<validators>
<!-- 验证用户名 -->
<field name="username">
<field-validator type="requiredstring">
<message>请输入用户名</message>
</field-validator>
</field>
<!-- 验证密码 -->
<field name="password">
<field-validator type="requiredstring">
<message>请输入密码</message>
</field-validator>
</field>
</validators>
6、部署，访问：localhost:8080/jwrm157-yanzheng/login.jsp
点击登录
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完毕
