Struts2用户输入校验

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注册/登录系统

定义持久化类

package com.Struts;    public class User {        private Long id;      private String username;      private String password;      private int age;      private String email;            public User() {          // TODO Auto-generated constructor stub      }              @Override      public String toString() {          return "用户名：" + getUsername() + "  口令：" + getPassword()                  + "  年龄：" + getAge() + "  Email：" + getEmail() ;      }          public Long getId() {          return id;      }        public void setId(Long 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 int getAge() {          return age;      }        public void setAge(int age) {          this.age = age;      }        public String getEmail() {          return email;      }        public void setEmail(String email) {          this.email = email;      }    }

持久层实现

<?xml version="1.0" encoding="UTF-8"?>  <!DOCTYPE hibernate-mapping PUBLIC       "-//Hibernate/Hibernate Mapping DTD 3.0//EN"      "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">        <hibernate-mapping package="com.Struts">      <class name="User" table="userinfo" >          <id name="id" column="id">              <generator class="identity"/>          </id>          <property name="username" type="string" column="username"/>          <property name="password" type="string" column="password"/>          <property name="age" type="integer" column="age"/>          <property name="email" type="string" column="email"/>                </class>  </hibernate-mapping>

定义Action动作类

RegisterAction.java

package com.Struts;    import java.util.List;    import org.hibernate.Query;  import org.hibernate.Session;  import org.hibernate.Transaction;    import com.opensymphony.xwork2.ActionSupport;  import com.util.HibernateUtil;      public class RegisterAction extends ActionSupport {        private User user;        public User getUser() {          return user;      }        public void setUser(User user) {          this.user = user;      }        @Override      public String execute() throws Exception {          // TODO Auto-generated method stub          return SUCCESS;      }            public String register() throws Exception{          try{              Session session = HibernateUtil.getSession();              Transaction tx = session.beginTransaction();              session.save(user);              tx.commit();              return SUCCESS;          }catch(Exception e){              e.printStackTrace();              HibernateUtil.getSession().close();              return ERROR;          }      }      public String login() throws Exception {          try{              Session session = HibernateUtil.getSession();              Transaction tx = session.beginTransaction();              Query query = session.createQuery("from User Where username=:uname");              query.setParameter("uname", user.getUsername());              List list = query.list();              tx.commit();              if(list.size()==1){                  return SUCCESS;              }else                  return ERROR;          }catch(Exception e){              e.printStackTrace();              HibernateUtil.getSession().close();              return ERROR;          }      }  }

创建视图

<%@ 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>用户注册</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>     <p>注册一个新用户</p>     <s:form action="Register">      <s:actionerror/><s:fielderror/>      <s:textfield name="user.username" label="用户名"/>      <s:password name="user.password" label="口令"/>      <s:textfield name="user.age" label="年龄"/>      <s:textfield name="user.email" label="Email地址"/>      <s:submit value="注册"/>     </s:form>     <br><br>  <p><a href="<s:url action="index"/>">返回 首页</a></p>    </body>  </html>

<%@ 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>登录页面</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>   <p>请输入用户和密码：</p>   <s:form action="Login">      <s:textfield name="user.username" label="用户名" tooltip="输入用户名" labelposition="left"/>      <s:password name="user.password" label="密码" tooltip="输入密码" labelposition="left"/>      <s:submit value="登录" align="center"/>   </s:form>   <br><br>  <p><a href="<s:url action="index"/>">返回 首页</a></p>    </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>注册成功页面</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>     <p>注册成功</p>     <s:property value="user"/>     <p><a href="<s:url action="index"/>">返回 首页</a></p>    </body>  </html>

welcome.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>登陆成功</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>  <p align="center"><font color="#000080" size="5">欢迎登录本系统</font></p>  <br><br>  <p><a href="<s:url action="index"/>">返回 首页</a></p>    </body>  </html>

index.jsp

    <p><a href="<s:url action='registerInput'/>">用户注册</a></p>    <p><a href="<s:url action='loginInput'/>">用户登录</a></p>

修改struts.xml配置文件

<?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>       <constant name="struts.devMode" value="true"/>      <package name="basicstructs2" extends="struts-default">                    <action name="index">              <result>/index.jsp</result>          </action>                    <action name="registerInput">              <result>/register.jsp</result>          </action>          <action name="loginInput">              <result>/login.jsp</result>          </action>          <action name="Register" class="com.Struts.RegisterAction" method="register">              <result name="success">/success.jsp</result>                            <result name="input">/register.jsp</result> <!-- 当输入校验失败后，Action动作类自动返回"input"的结果 -->                            <result name="error">/error.jsp</result>          </action>          <action name="Login" class="com.Struts.RegisterAction" method="login">              <result name="success">/welcome.jsp</result>              <result name="error">/error.jsp</result>          </action>                </package>  </struts>

配置文件名格式：<Action-Class-Name>-validation.xml

RegisterAction-validation.xml

<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE validators PUBLIC"-//Apache Struts//XWork Validator 1.0.2//EN"  "http://struts.apache.org/dtds/xwork-validator-1.0.2.dtd">        <validators><field name="user.username"><field-validator type="requiredstring"><param name="trim">true</param><message>用户名不能为空！</message></field-validator></field><field name="user.password"><field-validator type="requiredstring" short-circuit="true"><param name="trim">true</param><message>口令不能为空！</message></field-validator><field-validator type="stringlength"><param name="minLength">6</param><param name="maxLength">14</param><message>口令包含的字符在6-14位之间</message></field-validator></field><field name="user.age"><field-validator type="int"><param name="min">16</param><param name="max">60</param><message>用户年龄应在16-60岁之间</message></field-validator></field><field name="user.email"><field-validator type="requiredstring" short-circuit="true"><message>邮箱地址必填！</message></field-validator><field-validator type="email"><message>邮箱地址不合法！</message></field-validator></field></validators>

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