Struts中action匹配顺序实战

今天药忘吃喽~ 2021-07-25 02:59 418阅读 0赞

**一 action**

1 FirstAction

package org.crazyit.app.action;
    
    import com.opensymphony.xwork2.ActionSupport;
    import com.opensymphony.xwork2.ActionContext;
    
    public class FirstAction extends ActionSupport
    {
        public String execute() throws Exception
        {
            addActionMessage("第一个Action处理结果");
            System.out.println("第一个Action");
            return SUCCESS;
        }
    }

2 LoginAction

package org.crazyit.app.action;
    
    import com.opensymphony.xwork2.ActionSupport;
    import com.opensymphony.xwork2.ActionContext;
    
    public class LoginAction extends ActionSupport
    {
        private String username;
        private String password;
    
        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 String execute() throws Exception
        {
            if (getUsername().equals("crazyit.org")
                    && getPassword().equals("leegang") )
            {
                ActionContext.getContext().getSession()
                    .put("user" , getUsername());
                addActionMessage("欢迎," + getUsername() + ",您已经登录成功！");
                return SUCCESS;
            }
            return ERROR;
        }
    }

3 TwoAction

package org.crazyit.app.action;
    
    import com.opensymphony.xwork2.ActionSupport;
    import com.opensymphony.xwork2.ActionContext;
    
    public class TwoAction extends ActionSupport
    {
        public String execute() throws Exception
        {
            addActionMessage("第二个Action处理结果");
            System.out.println("第二个Action");
            return SUCCESS;
        }
    }

**二 配置文件**

<?xml version="1.0" encoding="GBK"?>
    <!DOCTYPE struts PUBLIC
        "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
        "http://struts.apache.org/dtds/struts-2.3.dtd">
    <struts>
        <package name="lee" extends="struts-default">
    
            
            <action name="*" class="org.crazyit.app.action.FirstAction">
                <result>/WEB-INF/content/welcome.jsp</result>
            </action>
            
            <action name="*Action" class="org.crazyit.app.action.TwoAction">
                <result>/WEB-INF/content/welcome.jsp</result>
            </action>
            
            <action name="loginAction" class="org.crazyit.app.action.LoginAction">
                <result name="error">/WEB-INF/content/error.jsp</result>
                <result>/WEB-INF/content/welcome.jsp</result>
            </action>
        </package>
    </struts>

**三 视图**

1 loginForm.jsp

<%@ page language="java" contentType="text/html; charset=GBK"%>
    <script>
        function regist()
        {
            targetForm = document.forms[0];
            targetForm.action = "registAction.action";
            targetForm.submit();
        }
    </script>
    <html>
    <head>
    <title>登录页面</title>
    </head>
    <body>
    <table width="300" align="center">
    <form action="loginAction.action" method="post">
    <tr>
    <td>用户名:</td>
    <td><input type="text" name="username"/></td>
    </tr>
    <tr>
    <td>密  码:</td>
    <td><input type="text" name="password"/></td>
    </tr>
    <tr>
    <td><input type="submit" value="登录"/></td>
    <td><input type="button" value="注册" onClick="regist();"/></td>
    </tr>
    </form>
    <table>
    </body>
    </html>

2 welcome.jsp

<%@ page language="java" contentType="text/html; charset=GBK"%>
    <%@taglib prefix="s" uri="/struts-tags"%>
    <html>
        <head>
            <title>成功页面</title>
        </head>
        <body>
        <s:actionmessage/>
        </body>
    </html>

3 error.jsp

<%@ page language="java" contentType="text/html; charset=GBK"%>
    <%@taglib prefix="s" uri="/struts-tags"%>
    
    <html>
        <head>
            <title>错误页面</title>
        </head>
        <body>
            对不起，您登录失败！
        </body>
    </html>

**四 测试**

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5ncWl1bWluZw_size_16_color_FFFFFF_t_70][]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5ncWl1bWluZw_size_16_color_FFFFFF_t_70]: /images/20210724/dc155d09a281461f88ec88270036a03e.png