第一个struts2程序

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搭建struts2

引入struts的jar包

这可以自己下载。然后在lib下找

web.xml放在WEB-INF下

<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_9" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">

    <display-name>Struts</display-name>

    <filter>
        <filter-name>struts2</filter-name>
        <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
    </filter>

    <filter-mapping>
        <filter-name>struts2</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

    <welcome-file-list>
        <welcome-file>index.jsp</welcome-file>
    </welcome-file-list>

</web-app>

struts放在src下

<?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">

<package name="default" namespace="/" extends="struts-default">
        <action name="student" class="com.ljq.action.studentAction">
            
        <result name="error">/error.jsp</result>
        <result name="success">/welcome.jsp</result>
        </action>

编写java代码

studentAction

package com.ljq.action;

public class studentAction {

   private int stuId;
   private String name;
   private String password;
   private String sex;
   private int age;
   public String execute(){

       /*System.out.println("stuId"+stuId);
       System.out.println("name"+name);
       System.out.println("password"+password);
       System.out.println("sex"+sex);
       System.out.println("age"+age);*/
       if("ljq".equals(getName())&&"123".equals(getPassword())){
           return "success";
       }
       else{
           return "error";
       }

   }
   public int getStuId() {
       return stuId;
   }
   public void setStuId(int stuId) {
       this.stuId = stuId;
   }
   public String getName() {
       return name;
   }
   public void setName(String name) {
       this.name = name;
   }
   public String getPassword() {
       return password;
   }
   public void setPassword(String password) {
       this.password = password;
   }
   public String getSex() {
       return sex;
   }
   public void setSex(String sex) {
       this.sex = sex;
   }
   public int getAge() {
       return age;
   }
   public void setAge(int age) {
       this.age = age;
   }

}

<body >
<h1>欢迎使用信息学院信息管理系统学院</h1>
    <form action="student.action" method="post">
    用户名<input type="text" name="name"/><br/>
    密码<input type="password" name="password"/><br/>
    <input type="submit" value="登录"/>
    <input type="reset" value="重置"/>
    </form>
</body>

error.jsp

<body>
    <h1>您输入的信息错误，请重新登陆</h1>
    <form action="student" method="post"></form>
    用户名<input type="text" name="name"/><br/>
    密码<input type="password" name="password"/><br/>
    <input type="submit" value="登录"/>
    <input type="reset" value="重置"/>
    </form>
</body>

welcome.jsp

经过以上的工作，整个代码就可运行了。

/*有啥问题大家一起交流哦*/