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Spring 3.x 企业应用开发实战第二章快速入门

1，登录demo

-1，建表

CREATE TABLE T_USER(USER_ID NUMBER(16),
                    USER_NAME VARCHAR2(30),
                    CREDITS NUMBER(16),
                    PASSWORD VARCHAR2(32),
                    LAST_VISIT DATE,
                    LAST_IP VARCHAR2(32));
 
CREATE TABLE T_LOGIN_LOG(LOGIN_LOG_ID NUMBER(16),
                         USER_ID NUMBER(16),
                         IP VARCHAR2(32),
                         LOGIN_DATETIME DATE);

-2，建立对应package，如下图：

-3，新建model，dao并配置

/**
 * 类描述：用户类
 * 
 * @author: Jing History: Jan 14, 2015 3:09:40 PM Jing Created.
 * 
 */
public class User implements Serializable {
 
	private static final long serialVersionUID = 1L;
 
	private int userId;
	private String userName;
	private String password;
	private int credits;
	private String lastIp;
	private Date lastVisit;

/**
 * 类描述：登录日志
 * 
 * @author: Jing History: Jan 14, 2015 3:11:28 PM Jing Created.
 * 
 */
public class LoginLog implements Serializable {
 
	private static final long serialVersionUID = 1L;
 
	private int loginLogId;
	private int userId;
	private String ip;
	private Date loginDate;

/**
 *
 * @(#) UserDao.java
 * @Package com.jing.dao
 * 
 * Copyright © JING Corporation. All rights reserved.
 *
 */
 
package com.jing.dao;
 
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.stereotype.Repository;
 
import com.jing.domain.User;
 
/**
 * 类描述：用户查询类
 * 
 * @author: Jing History: Jan 14, 2015 3:13:56 PM Jing Created.
 * 
 */
@Repository
public class UserDao {
	
	@Autowired
	private JdbcTemplate jdbcTemplate;
 
	/**
	 * 
	 * 方法说明：根据用户名和密码获取匹配用户数
	 * 
	 * Author： Jing Create Date： Jan 14, 2015 3:21:20 PM
	 */
	@SuppressWarnings("deprecation")
	public int getMatchCount(String userName, String password) {
 
		String sqlStr = "select COUNT(1) FROM T_USER WHERE user_name = ? AND PASSWORD = ?";
 
		return jdbcTemplate.queryForInt(sqlStr, new Object[] { userName,
				password });
	}
 
	/**
	 * 
	 * 方法说明：通过用户名获取用户信息
	 * 
	 * Author： Jing Create Date： Jan 14, 2015 3:27:16 PM
	 */
	public User findUserByUserName(final String userName) {
		User user = new User();
		String sqlStr = "SELECT a.user_id, a.user_name, a.credits FROM t_user a WHERE a.user_name = ? ";
		user = jdbcTemplate.queryForObject(sqlStr, user.getClass(),
				new Object[] { userName });
		return user;
	}
 
	/**
	 * 
	 * 方法说明：更新用户信息
	 * 
	 * Author： Jing Create Date： Jan 14, 2015 3:35:08 PM
	 */
	public void updateLoginInfo(User user) {
 
		String sql = "UPDATE t_user SET last_visit = ?, last_ip = ?, credits = ? WHERE user_id = ?";
		jdbcTemplate.update(sql, new Object[] { user.getLastVisit(),
				user.getLastIp(), user.getCredits(), user.getUserId() });
	}
 
	public JdbcTemplate getJdbcTemplate() {
		return jdbcTemplate;
	}
 
	public void setJdbcTemplate(JdbcTemplate jdbcTemplate) {
		this.jdbcTemplate = jdbcTemplate;
	}
 
}

/**
 *
 * @(#) LoginLogDao.java
 * @Package com.jing.dao
 * 
 * Copyright © JING Corporation. All rights reserved.
 *
 */
 
package com.jing.dao;
 
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.stereotype.Repository;
 
import com.jing.domain.LoginLog;
 
/**
 * 类描述：登录日志Dao
 * 
 * @author: Jing History: Jan 14, 2015 3:40:28 PM Jing Created.
 * 
 */
@Repository
public class LoginLogDao {
 
	@Autowired
	private JdbcTemplate jdbcTemplate;
 
	/**
	 * 
	 * 方法说明：插入用户登录日志
	 * 
	 * Author： Jing Create Date： Jan 14, 2015 3:46:01 PM
	 */
	public void insertLoginLog(LoginLog log) {
 
		String sql = "INSERT INTO t_login_log(LOGIN_LOG_ID, user_id, ip,LOGIN_DATETIME ) VALUES (?, ?,?,?)";
		jdbcTemplate.update(sql, new Object[] { log.getLoginLogId(),
				log.getUserId(), log.getIp(), log.getLoginDate() });
	}
 
	public JdbcTemplate getJdbcTemplate() {
		return jdbcTemplate;
	}
 
	public void setJdbcTemplate(JdbcTemplate jdbcTemplate) {
		this.jdbcTemplate = jdbcTemplate;
	}
 
}

<?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:context="http://www.springframework.org/schema/context"
	xmlns:aop="http://www.springframework.org/schema/aop"
	xmlns:tx="http://www.springframework.org/schema/tx"
	xmlns:mvc="http://www.springframework.org/schema/mvc"
	xsi:schemaLocation="http://www.springframework.org/schema/beans
                     http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
                     http://www.springframework.org/schema/context
                     http://www.springframework.org/schema/context/spring-context-4.0.xsd
                     http://www.springframework.org/schema/aop
                     http://www.springframework.org/schema/aop/spring-aop-4.0.xsd
                     http://www.springframework.org/schema/tx
                     http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
                     http://www.springframework.org/schema/mvc
                     http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd ">
 
	<!-- 标注注解类的自动扫描 -->
	<context:component-scan base-package="com.jing.dao" />
 
	<!-- 定义数据源 -->
	<bean id="dataSource"
		class="org.springframework.jdbc.datasource.DriverManagerDataSource">
		<property name="driverClassName"
			value="oracle.jdbc.driver.OracleDriver" />
		<property name="url"
			value="jdbc:oracle:thin:@xxxxxxx:1521:xxxx" />
		<property name="username" value="xxxx" />
		<property name="password" value="xxxxx" />
	</bean>

 
<!-- 定义Jdbc模板类实例-->
    <bean id="jdbcTemplate"
        class="org.springframework.jdbc.core.JdbcTemplate">
        <property name="dataSource" ref="dataSource"></property>
    </bean>

</beans>

-4，业务层

/**
 *
 * @(#) UserService.java
 * @Package com.jing.service
 * 
 * Copyright © JING Corporation. All rights reserved.
 *
 */
 
package com.jing.service;
 
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
 
import com.jing.dao.LoginLogDao;
import com.jing.dao.UserDao;
import com.jing.domain.User;
 
/**
 * 类描述：用户业务类
 * 
 * @author: Jing History: Jan 14, 2015 4:03:57 PM Jing Created.
 * 
 */
@Service
public class UserService {
 
	@Autowired
	private UserDao userDao;
 
	@Autowired
	private LoginLogDao loginLogDao;
 
	public UserDao getUserDao() {
		return userDao;
	}
 
	public void setUserDao(UserDao userDao) {
		this.userDao = userDao;
	}
 
	public LoginLogDao getLoginLogDao() {
		return loginLogDao;
	}
 
	public void setLoginLogDao(LoginLogDao loginLogDao) {
		this.loginLogDao = loginLogDao;
	}
	/**
	 * 
	 * 方法说明：判断是否存在重复的用户名和密码，存在返回true
	 *
	 * Author：       Jing                
	 * Create Date：   Jan 14, 2015 4:06:09 PM
	 */
	public boolean hasMatchUsers(String userName, String password) {
 
		int matchCounts = userDao.getMatchCount(userName, password);
		return matchCounts > 0;
	}
	/**
	 * 
	 * 方法说明：通过用户名查找用户
	 *
	 * Author：       Jing                
	 * Create Date：   Jan 14, 2015 4:10:17 PM
	 */
	public User finUserByName(String userName){
		
		return userDao.findUserByUserName(userName);
	}
	/**
	 * 
	 * 方法说明：用户登录成功，记录日志
	 *
	 * Author：       Jing                
	 * Create Date：   Jan 14, 2015 4:11:12 PM
	 */
	public void loginSuccess(User user){
		
		
	}
 
}

 
	<!-- 标注SERVICE注解类的自动扫描 -->
	<context:component-scan base-package="com.jing.service" />

	<!-- 配置事务管理器 -->
	<bean id="transactionManager"
		class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
		<property name="dataSource" ref="dataSource"></property>
	</bean>
 
	<!-- AOP配置提供增强事务，让Service下所有Bean的所有方法拥有事务 -->
	<aop:config proxy-target-class="true">
		<aop:pointcut id="serviceMethod"
			expression="execution(*com.jing.service..*(..))" />
		<aop:advisor pointcut-ref="serviceMethod" advice-ref="txAdvice" />
	</aop:config>
	<tx:advice id="txAdvice" transaction-manager="transactionManager">
		<tx:attributes>
			<tx:method name="*" />
		</tx:attributes>
	</tx:advice>

单元测试：

package com.jing.service;
 
import junit.framework.Assert;
 
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
 
/**
 * 类描述：
 * 
 * @author: Jing History: Jan 14, 2015 4:22:38 PM Jing Created.
 * 
 */
// 基于JUnit4的Spring测试框架,使用JUNIT4.5以上的jar包，否则会报错
@RunWith(SpringJUnit4ClassRunner.class)
// 启动Spring容器
@ContextConfiguration(locations = { "/applicationContext.xml" })
public class TestUserService {
	@Autowired
	private UserService userService;
 
	@Test
	public void testHasMatchUsers() {
 
		boolean hasUser = userService.hasMatchUsers("lisi", "lisi123");
		Assert.assertEquals(false, hasUser);
	}
 
	public UserService getUserService() {
		return userService;
	}
 
	public void setUserService(UserService userService) {
		this.userService = userService;
	}
 
}

-5，展现层

配置web.xml文件：

	<!-- 配置从类路径下加载Spring配置文件 -->
	<context-param>
		<param-name>contextConfiglocation</param-name>
		<param-value>classpath:applicationContext.xml</param-value>
	</context-param>
	<!-- 加载监听器，获取Spring的配置文件参数 -->
	<listener>
		<listener-class>
			org.springframework.web.context.ContextLoaderListener
		</listener-class>
	</listener>
 
	<servlet>
		<servlet-name>spring</servlet-name>
		<servlet-class>
			org.springframework.web.servlet.DispatcherServlet
		</servlet-class>
		<load-on-startup>1</load-on-startup>
	</servlet>
	<servlet-mapping>
		<servlet-name>spring</servlet-name>
		<url-pattern>.html</url-pattern><!-- 以.html为后缀，可以隐藏服务器端的具体技术而正真的HTML可以使用.htm来实现-->
	</servlet-mapping>

新增spring-servlet文件：

	
	<!-- 扫描web包，应用Spring注解 -->
	<context:component-scan base-package="com.jing.web"/>
	<!-- 配置视图解析器 -->
	<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" >
		<property name="viewClass" value="org.springframework.web.servlet.view.JstlView"></property>
		<property name="prefix" value="/WEB-INF/jsp/"></property>
		<property name="suffix" value=".jsp"></property>
	</bean>

package com.jing.web;
 
/**
 * 类描述：用户登录
 * 
 * @author: Jing History: Jan 15, 2015 9:50:53 AM Jing Created.
 * 
 */
public class LoginCommand {
 
	private String userName;
	private String password;

/**
 *
 * @(#) LoginController.java
 * @Package com.jing.web
 * 
 * Copyright © JING Corporation. All rights reserved.
 *
 */
 
package com.jing.web;
 
import java.util.Date;
 
import javax.servlet.http.HttpServletRequest;
 
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
 
import com.jing.domain.User;
import com.jing.service.UserService;
 
/**
 * 类描述：用户登录
 * 
 * @author: Jing History: Jan 15, 2015 9:47:43 AM Jing Created.
 * 
 */
@Controller
public class LoginController {
 
	@Autowired
	private UserService userService;
 
	/**
	 * 
	 * 方法说明：处理index.html请求
	 * 
	 * Author： Jing Create Date： Jan 15, 2015 10:11:28 AM
	 */
	@RequestMapping(value = "/index.html")
	public String loginPage() {
 
		return "login";
	}
 
	/**
	 * 
	 * 方法说明：处理loginCheck.html请求，负责登录检查
	 * 
	 * Author： Jing Create Date： Jan 15, 2015 10:13:10 AM
	 */
	@RequestMapping(value = "/loginCheck.html")
	public ModelAndView loginCheck(HttpServletRequest request,
			LoginCommand loginCommand) {
 
		boolean isValidUser = userService.hasMatchUsers(loginCommand
				.getUserName(), loginCommand.getPassword());
		if(!isValidUser){
			
			return new ModelAndView("login", "error", "用户名或密码错误");
		}else{
			User user = userService.finUserByName(loginCommand.getUserName());
			user.setLastIp(request.getRemoteAddr());
			user.setLastVisit(new Date());
			userService.loginSuccess(user);
			request.getSession().setAttribute("user", user);
			return new ModelAndView("main");
		}
	}
}

<%@ page language="java" pageEncoding="utf-8"%>
<%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%
	String path = request.getContextPath();
	String basePath = request.getScheme() + "://"
			+ request.getServerName() + ":" + request.getServerPort()
			+ path + "/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
	<head>
		<base href="<%=basePath%>">
 
		<title>登录测试</title>
	</head>
	<body>
		<c:if test="${!empty error}">
			<font color="red"><c:out value="${error}" />
			</font>
		</c:if>
		<form action="<c:url value="loginCheck.html"/> " method="post">
			用户名：
			<input type="text" name="userName" />
			<br />
			密 码：
			<input type="password" name="password" />
			<br />
			<input type="submit" value="登录" />
		</form>
	</body>
</html>

欢迎转载，但转载请注明原文链接[博客园： http://www.cnblogs.com/jingLongJun/]
[CSDN博客：http://blog.csdn.net/mergades]。
如相关博文涉及到版权问题，请联系本人。

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原文地址：https://www.cnblogs.com/jingLongJun/p/4491056.html

Spring 3.x 企业应用开发实战第二章 快速入门

Spring 3.x 企业应用开发实战第二章快速入门