Struts2环境搭建与示例-优快云博客

本文链接：https://blog.youkuaiyun.com/weixin_36024609/article/details/78308129

Struts环境搭建

1. Struts2部署
      1.引入jar包
        struts2-core.jar   核心jar包
        xwork.jar   核心jar包
        javasist-GA   处理字节码
      2.web.xml
          <filter>
              <filter-name>struts2</filter-name>
              <filter-class>org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter</filter-class>
          </filter>
          <filter-mapping>
              <filter-name>struts2</filter-name>
              <url-pattern>/*</url-pattern>
          </filter-mapping>
        核心过滤器名称  StrutsPrepareAndExcuteFlter
      3.view视图页面
      4.编写action
         1.UserAction implement Action
         2.UserAction extends ActionSupport
      5.struts.xml
      6.部署运行

po:

public class Userinfo {
    private String uname;
    private String upwd;

    public String getUname() {
        return uname;
    }

    public void setUname(String uname) {
        this.uname = uname;
    }

    public String getUpwd() {
        return upwd;
    }

    public void setUpwd(String upwd) {
        this.upwd = upwd;
    }
}

Action:

public class TestAction01 implements Action {
    private Userinfo user;
    private String message;

    public String getMessage() {
        return message;
    }

    public void setMessage(String message) {
        this.message = message;
    }

    public Userinfo getUser() {
        return user;
    }

    public void setUser(Userinfo user) {
        this.user = user;
    }

    public String execute() throws Exception {
        this.setMessage("你好：" + this.user.getUname());
        HttpSession session= ServletActionContext.getRequest().getSession();
        return "success";
    }
}

struts.xml:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
        "-//Apache Software Foundation//DTD Struts Configuration 2.5//EN"
        "http://struts.apache.org/dtds/struts-2.5.dtd">
<struts>
    <!--支持动态方法调用-->
    <constant name="struts.enable.DynamicMethodInvocation" value="false"/>
    <!--修改struts.xml 不用重启容器-->
    <constant name="struts.devMode" value="true"/>
    <package name="default" namespace="/" extends="struts-default">
        <default-action-ref name="index"/>
        <!--<global-results>
            <result name="error">/WEB-INF/jsp/error.jsp</result>
        </global-results>-->
        <!-- <global-exception-mappings>
             <exception-mapping exception="java.lang.Exception" result="error"></exception-mapping>
         </global-exception-mappings>-->
        <action name="helloWord" class="cn.ljl.action.TestAction01">
            <result name="success">first.jsp</result>
        </action>
    </package>
</struts>

first.jsp:

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ taglib uri="/struts-tags" prefix="s"%>
<html>
<head>
    <title>Struts</title>
</head>
<body>
<h2>Struts2 第一个案例</h2>
<s:property value="message"></s:property>
<form action="helloWord" method="post">
    用户名：<input name="user.uname"/>
    <input type="submit" value="提交"/>
</form>
</body>
</html>

index.jsp:

<html>
<body>
<h2>Struts2 第一个案例</h2>
<form action="helloWord" method="post">
    用户名：<input name="uname"/>
    <input type="submit" value="提交"/>
</form>
</body>
</html>

web.xml:

<!DOCTYPE web-app PUBLIC
        "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
        "http://java.sun.com/dtd/web-app_2_3.dtd" >

<web-app>
    <display-name>Archetype Created Web Application</display-name>
    <filter>
        <filter-name>struts2</filter-name>
        <filter-class>org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter</filter-class>
    </filter>
    <filter-mapping>
        <filter-name>struts2</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
    <welcome-file-list>
        <welcome-file>first.jsp</welcome-file>
    </welcome-file-list>
</web-app>

运行结果

Struts2初步案例