1、创建工程:
2、创建数据库:(这里使用Mysql)
3、创建表及插入数据:
4、在工程中导入struts2和spring的相关包:
5、导入Jquery的包:
6、编写相应的Java文件:
BaseAction:
- /**
- *
- */
- package com.gzedu.base;
- import javax.servlet.http.HttpServletRequest;
- import javax.servlet.http.HttpServletResponse;
- import org.apache.struts2.ServletActionContext;
- import com.opensymphony.xwork2.ActionContext;
- import com.opensymphony.xwork2.ActionSupport;
- /**
- * @author ps
- *
- */
- public class BaseAction extends ActionSupport {
- protected ActionContext ctx = ActionContext.getContext();
- /**
- *
- */
- private static final long serialVersionUID = 1L;
- /**
- * 获取Response
- * @return
- */
- protected HttpServletResponse getResponse(){
- HttpServletResponse response = (HttpServletResponse)ctx.get(ServletActionContext.HTTP_RESPONSE);
- return response;
- }
- /**
- * 获取Request
- * @return
- */
- protected HttpServletRequest getRequest(){
- HttpServletRequest request = (HttpServletRequest)ctx.get(ServletActionContext.HTTP_REQUEST);
- return request;
- }
- }
LoginAction类:
- /**
- *
- */
- package com.gzedu.login.action;
- import java.util.Map;
- import org.apache.struts2.json.JSONUtil;
- import com.gzedu.base.BaseAction;
- import com.gzedu.login.entity.Login;
- import com.gzedu.login.service.ILoginService;
- /**
- * @author ps
- *
- */
- public class LoginAction extends BaseAction {
- private ILoginService loginService;
- private Login login;
- /**
- *
- */
- private static final long serialVersionUID = 1L;
- /**
- * 登录事件
- * @return
- */
- public String login() throws Exception{
- return SUCCESS;
- }
- /**
- * 检查登录用户是否存在
- * @return
- */
- public String checkLogin()throws Exception{
- Map<String,String> msgMap = loginService.login(login);
- boolean isLogin = Boolean.valueOf(msgMap.get("isLogin"));
- String json = "success";
- if(!isLogin){
- json = "error";
- }
- json = JSONUtil.serialize(json);
- getResponse().setCharacterEncoding("utf-8");
- getResponse().getWriter().write(json);
- return null;
- }
- public ILoginService getLoginService() {
- return loginService;
- }
- public void setLoginService(ILoginService loginService) {
- this.loginService = loginService;
- }
- public Login getLogin() {
- return login;
- }
- public void setLogin(Login login) {
- this.login = login;
- }
- }
DAO接口:
- /**
- *
- */
- package com.gzedu.login.dao;
- import java.util.Map;
- import com.gzedu.login.entity.Login;
- /**
- * @author ps
- *
- */
- public interface ILoginDao {
- /**
- * 用户登录
- * @param login 用户登录信息
- * @return 登录返回信息
- */
- public Map<String,String> login(Login login);
- }
DAO实现类:
- /**
- *
- */
- package com.gzedu.login.dao.impl;
- import java.util.HashMap;
- import java.util.List;
- import java.util.Map;
- import org.springframework.jdbc.core.support.JdbcDaoSupport;
- import com.gzedu.login.dao.ILoginDao;
- import com.gzedu.login.entity.Login;
- /**
- * @author ps
- *
- */
- public class LoginDaoImpl extends JdbcDaoSupport implements ILoginDao{
- @Override
- public Map<String,String> login(Login login) {
- String sql = "select * from t_user where username = ? and password = ?";
- List list = getJdbcTemplate().queryForList(sql,new Object[]{login.getUsername(),login.getPassword()});
- String isLogin = "true";
- if(list.isEmpty()){
- isLogin = "false";
- }
- Map<String,String> map = new HashMap<String, String>();
- map.put("isLogin", isLogin);
- return map;
- };
- }
Login中间层接口:
- /**
- *
- */
- package com.gzedu.login.service;
- import java.util.Map;
- import com.gzedu.login.entity.Login;
- /**
- * @author ps
- *
- */
- public interface ILoginService {
- /**
- * 用户登录
- * @param login 用户登录信息
- * @return 登录返回信息
- */
- public Map<String,String> login(Login login);
- }
中间层的实现类:
- /**
- *
- */
- package com.gzedu.login.service.impl;
- import java.util.Map;
- import com.gzedu.login.dao.ILoginDao;
- import com.gzedu.login.entity.Login;
- import com.gzedu.login.service.ILoginService;
- /**
- * @author ps
- *
- */
- public class LoginServiceImpl implements ILoginService{
- private ILoginDao loginDao;
- public ILoginDao getLoginDao() {
- return loginDao;
- }
- public void setLoginDao(ILoginDao loginDao) {
- this.loginDao = loginDao;
- }
- @Override
- public Map<String,String> login(Login login) {
- return loginDao.login(login);
- }
- }
login实体类:、
- /**
- *
- */
- package com.gzedu.login.entity;
- /**
- * @author ps
- *
- */
- public class Login {
- /**
- * 用户名
- */
- private String username;
- /**
- * 密码
- */
- 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;
- }
- }
applicationContext.xml配置
- <?xml version="1.0" encoding="UTF-8"?>
- <beans
- xmlns="http://www.springframework.org/schema/beans"
- xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
- xmlns:aop="http://www.springframework.org/schema/aop"
- xmlns:tx="http://www.springframework.org/schema/tx"
- xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
- http://www.springframework.org/schema/tx
- http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
- http://www.springframework.org/schema/aop
- http://www.springframework.org/schema/aop/spring-aop-3.1.xsd">
- <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
- <property name="username">
- <value>root</value>
- </property>
- <property name="password">
- <value>root</value>
- </property>
- <property name="driverClassName">
- <value>com.mysql.jdbc.Driver</value>
- </property>
- <property name="url">
- <value>jdbc:mysql://127.0.0.1:3306/jqdb</value>
- </property>
- </bean>
- <!-- jdbcTemplate 配置 -->
- <!-- Login 配置 -->
- <bean id="loginDao" class="com.gzedu.login.dao.impl.LoginDaoImpl">
- <property name="dataSource" ref="dataSource" />
- </bean>
- <bean id="loginService" class="com.gzedu.login.service.impl.LoginServiceImpl">
- <property name="loginDao" ref="loginDao" />
- </bean>
- <!-- //Login 配置 -->
- </beans>
login的xml
- <?xml version="1.0" encoding="UTF-8"?>
- <!DOCTYPE struts PUBLIC
- "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
- "http://struts.apache.org/dtds/struts-2.0.dtd">
- <struts>
- <package name="loginpackage" extends="struts-default" namespace="/login">
- <action name="login" method="login" class="com.gzedu.login.action.LoginAction">
- <result name="success">/pages/login/main.jsp</result>
- </action>
- <action name="checkLogin" method="checkLogin" class="com.gzedu.login.action.LoginAction">
- </action>
- </package>
- </struts>
struts2 的xml
- <?xml version="1.0" encoding="UTF-8"?>
- <!DOCTYPE struts PUBLIC
- "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
- "http://struts.apache.org/dtds/struts-2.0.dtd">
- <struts>
- <constant name="struts.devMode" value="true" />
- <constant name="struts.objectFactory" value="spring" />
- <!-- 配置登录的配置文件 -->
- <include file="login.xml"></include>
- </struts>
struts.properties配置
- #该属性指定需要Struts 2处理的请求后缀,该属性的默认值是action,
- #即所有匹配*.action的请求都由Struts 2处理.如果用户需要指定多个请求后缀,
- #则多个后缀之间以英文逗号(,)隔开.
- struts.action.extension = do
jsp页面
login.jsp
- <%@ page language="java" contentType="text/html; charset=UTF-8"
- pageEncoding="UTF-8"%>
- <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
- <%
- String path = request.getContextPath();
- %>
- <html>
- <head>
- <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
- <title>登录</title>
- <script type="text/javascript" src="<%=path %>/js/jquery/1.7/jquery-1.7.1.min_production.js"></script>
- </head>
- <body>
- <form action="<%=path %>/login/login.do" method="post">
- 用户名:<input type="text" name="login.username" /><br/>
- 密 码:<input type="password" name="login.password" /><br/>
- <input type="button" value="登录" onclick="login();">
- <input type="button" value="取消"><br/>
- <input type="submit" value="提交" style="display: none"><br/>
- <div id="errMsg" style="text-algin:center;color: red"></div>
- </form>
- <script type="text/javascript">
- function login(){
- var url = "<%=path %>/login/checkLogin.do";
- $.ajax({
- type : "POST",
- url : url,
- dataType : "json",
- data : {
- "login.username": $("input[name='login.username']").val(),
- "login.password": $("input[name='login.password']").val()
- },
- success : function (data){
- if("error" == data){
- $("#errMsg").html("<p>用户名或者密码错误,请重新输入!</p>");
- setTimeout("$('#errMsg').html('')",10000);
- }else{
- $("input[type=submit]").click();
- }
- },
- error : function (jqXHR, textStatus, errorThrown){
- alert(textStatus);
- }
- });
- }
- </script>
- </body>
- </html>
main.jsp
- <%@ page language="java" contentType="text/html; charset=UTF-8"
- pageEncoding="UTF-8"%>
- <!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>主页</title>
- </head>
- <body>
- <h2>我是主页,我怕谁!</h2>
- </body>
- </html>
7、运行
正确登录: