Struts2 实现登录处理

Bertha 。 2021-07-24 18:03 445阅读 0赞

**一 登录页面**

<%@ page language="java" contentType="text/html; charset=UTF-8"
        pageEncoding="UTF-8"%>
    <%@taglib prefix="s" uri="/struts-tags"%>
    <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
    <html>
    <head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    <title><s:text name="loginPage"/></title>
    </head>
    <body>
    <s:form action="login">
        <s:textfield name="username" key="user"/>
        <s:textfield name="password" key="pass"/>
        <s:submit key="login"/>
    </s:form>
    </body>
    </html>

**二 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>
        
        <constant name="struts.custom.i18n.resources" value="mess"/>
        <constant name="struts.enable.DynamicMethodInvocation" value="false"/>
        <constant name="struts.devMode" value="true" />
            
        <package name="crazyit" namespace="/" extends="struts-default">
            <action name="login" class="org.crazyit.app.action.LoginAction">
                
                <result name="error">/WEB-INF/content/error.jsp</result>
                <result name="success">/WEB-INF/content/welcome.jsp</result>
            </action>
            <action name="*">
                <result>/WEB-INF/content/{1}.jsp</result>
            </action>
        </package>
    </struts>

**三 资源文件**

loginPage=\u767B\u5F55\u9875\u9762
    errorPage=\u9519\u8BEF\u9875\u9762
    succPage=\u6210\u529F\u9875\u9762
    failTip=\u5BF9\u4E0D\u8D77\uFF0C\u60A8\u4E0D\u80FD\u767B\u5F55\uFF01
    succTip=\u6B22\u8FCE\uFF0C{0},\u60A8\u5DF2\u7ECF\u767B\u5F55\uFF01
    user=\u7528\u6237\u540D
    pass=\u5BC6  \u7801
    login=\u767B\u5F55

**四 控制器**

package org.crazyit.app.action;
    
    import com.opensymphony.xwork2.ActionContext;
    import com.opensymphony.xwork2.ActionSupport;
    
    
    public class LoginAction extends ActionSupport
    {
        // 定义封装请求参数的username和password成员变量
        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;
        }
        // 定义处理用户请求的execute方法
        public String execute() throws Exception
        {
            // 当username为crazyit.org，password为leegang时即登录成功
            if (getUsername().equals("crazyit.org")
                && getPassword().equals("leegang") )
            {
                ActionContext.getContext().getSession()
                    .put("user" , getUsername());
                return SUCCESS;
            }
            return ERROR;
        }
    }

**五 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 1][]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5ncWl1bWluZw_size_16_color_FFFFFF_t_70]: /images/20210724/dbbe0e35f53044eaa472c36d9f443382.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5ncWl1bWluZw_size_16_color_FFFFFF_t_70 1]: /images/20210724/ce343665271c449b911990a76a74d086.png