基于idea的SSM框架项目搭建

整合步骤

创建项目，添加jar包创建包、实体类与mapper添加连接数据库文件添加日志文件添加Spring配置文件添加SpringMVC配置文件修改web.xml文件

一、搭建整合环境

1.1创建表

CREATE TABLE `logs` ( `logid` int(11) NOT NULL AUTO_INCREMENT, `username` varchar(30) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL, `ip` varchar(30) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL, `logtime` date NOT NULL, PRIMARY KEY (`logid`) USING BTREE ) ENGINE = InnoDB AUTO_INCREMENT = 3 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic; CREATE TABLE `users` ( `userid` int(11) NOT NULL AUTO_INCREMENT, `username` varchar(30) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL, `userpwd` varchar(30) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL, PRIMARY KEY (`userid`) USING BTREE, UNIQUE INDEX `username_uk`(`username`) USING BTREE ) ENGINE = InnoDB AUTO_INCREMENT = 3 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;

1.2 创建web项目

1.3 添加jar包

1.4 创建包、实体类与Mapper

二、配置SSM整合文件

2.1 添加连接数据库的properties文件

jdbc.driver=com.mysql.jdbc.Driver jdbc.url=jdbc:mysql://localhost:3306/ssm jdbc.username=root jdbc.password=xxxx

2.2 添加日志配置文件（log4j）

log4j.rootLogger=info,console ### appender.console输出到控制台 ### log4j.appender.console=org.apache.log4j.ConsoleAppender log4j.appender.console.layout=org.apache.log4j.PatternLayout log4j.appender.console.layout.ConversionPattern=<%d> %5p (%F:%L) [%t] (%c) - %m%n log4j.appender.console.Target=System.out ### appender.logfile输出到日志文件 ### log4j.appender.logfile=org.apache.log4j.RollingFileAppender log4j.appender.logfile.File=SysLog.log log4j.appender.logfile.MaxFileSize=500KB log4j.appender.logfile.MaxBackupIndex=7 log4j.appender.logfile.layout=org.apache.log4j.PatternLayout log4j.appender.logfile.layout.ConversionPattern=<%d> %p (%F:%L) [%t] %c - %m%n

2.3 添加Spring配置文件

  在整合SSM框架时，为了对Spring配置项进行清晰的管理，我们可以采用“分而治之”的方式来定义Spring配置文件。将Spring配置文件分成三份：

applicationContext-dao.xml：用来配置与Mybatis整合

applicationContext-trans.xml：用来配置Spring声明式事务管理

applicationContext-services.xml：用来配置注解扫描以及其他的Spring配置

2.3.1 配置整合Mybatis

applicationContext-dao.xml

<?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" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"> <!--配置整合Mybatis--> <!--配置解析Properties文件的工具类--> <context:property-placeholder location="classpath:db.properties"/> <!--配置数据源--> <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource"> <property name="driverClassName" value="${jdbc.driver}"/> <property name="url" value="${jdbc.url}"/> <property name="username" value="${jdbc.username}"/> <property name="password" value="${jdbc.password}"/> </bean> <!--配置SqlSessionFactory--> <bean id="sqlSessionFactoryBean" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource"/> <property name="typeAliasesPackage" value="com.sky.pojo"/> </bean> <!--配置MapperScannerConfigurer--> <bean id="mapperScannerConfigurer" class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="com.sky.mapper"/> </bean> </beans>

2.3.2 配置Spring声明式事务管理

<?xml version="1.0" encoding="UTF-8"?> <!--配置声明式事务管理--> <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.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd"> <import resource="applicationContext-dao.xml"/> <!--配置事务管理器的切面--> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource"/> </bean> <!--配置事务属性--> <tx:advice id="myAdvice" transaction-manager="transactionManager"> <tx:attributes> <tx:method name="add*" propagation="REQUIRED"/> <tx:method name="modify*" propagation="REQUIRED"/> <tx:method name="drop*" propagation="REQUIRED"/> <tx:method name="userLogin" propagation="REQUIRED"/> <tx:method name="find*" read-only="true"/> </tx:attributes> </tx:advice> <!--配置切点--> <aop:config> <aop:pointcut id="myPointcut" expression="execution(* com.sky.service.*.*(..))"/> <aop:advisor advice-ref="myAdvice" pointcut-ref="myPointcut"/> </aop:config> </beans>

2.3.3 配置注解扫描

<?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" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"> <!--配置注解扫描--> <context:component-scan base-package="com.sky.service"/> </beans>

2.4 配置SpringMVC

springmvc.xml

<?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:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd"> <!--配置注解扫描--> <context:component-scan base-package="com.sky.web.controller"/> <!--配置注解驱动--> <mvc:annotation-driven/> <!--配置视图解析器--> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/WEB-INF/jsp/"/> <property name="suffix" value=".jsp"/> </bean> <!--配置静态资源映射器--> <mvc:resources mapping="/js/**" location="/WEB-INF/js/"/> <mvc:resources mapping="/img/**" location="/WEB-INF/img/"/> <mvc:resources mapping="/css/**" location="/WEB-INF/css/"/> </beans>

2.5 配置web.xml文件

<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd" version="4.0"> <!--指定Spring配置文件的位置及名称--> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:applicationContext-*.xml</param-value> </context-param> <!--配置启动Spring框架的监听器--> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!--配置SpringMVC的前端控制器--> <servlet> <servlet-name>springmvc</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:springmvc.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>springmvc</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <!--配置字符编码过滤器--> <filter> <filter-name>encodingFilter</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <init-param> <param-name>encoding</param-name> <param-value>utf-8</param-value> </init-param> </filter> <filter-mapping> <filter-name>encodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> </web-app>

三、实现用户登录

3.1 创建业务层

public interface UsersService { Users userLogin(Users users); }

3.2 创建业务层实现类

@Service public class UsersServiceImpl implements UsersService { @Autowired private UsersMapper usersMapper; /** * 用户登录 * @param users * @return */ @Override public Users userLogin(Users users) { UsersExample usersExample = new UsersExample(); UsersExample.Criteria criteria = usersExample.createCriteria(); criteria.andUsernameEqualTo(users.getUsername()); criteria.andUserpwdEqualTo(users.getUserpwd()); List<Users> list = this.usersMapper.selectByExample(usersExample); if(list.isEmpty() || list.size() <= 0) { throw new UserNotFoundException("用户名或密码有误！"); } return list.get(0); } }

3.3 创建自定义异常

/** * 自定义异常类,用户登录时错误 * @author sky * @create 2020-09-26 12:47 */ public class UserNotFoundException extends RuntimeException { public UserNotFoundException() { } public UserNotFoundException(String message) { super(message); } public UserNotFoundException(String message, Throwable cause) { super(message, cause); } }

3.4 创建用户登录控制器

/** * 用户管理控制器 * @author sky * @create 2020-09-26 12:53 */ @Controller @RequestMapping("/user") public class UsersController { @Autowired private UsersService usersService; /** * 处理用户登录请求 * @param users * @param session * @return */ @RequestMapping("/userLogin") public String userLogin(UsersExt users, HttpSession session, HttpServletRequest request) { String ip = request.getRemoteAddr(); users.setIp(ip); Users user = this.usersService.userLogin(users); session.setAttribute("user", user); return "redirect:/page/index"; } }

3.5 全局异常处理器

/** * 全局异常处理器 * @author sky * @create 2020-09-26 12:57 */ @ControllerAdvice public class GlobalExceptionController { @ExceptionHandler({com.sky.exception.UserNotFoundException.class}) public String userNotFoundExceptionHandler(Exception e, Model model) { model.addAttribute("msg", e.getMessage()); return "login"; } @ExceptionHandler({java.lang.Exception.class}) public String exceptionHandler(Exception e) { return "redirect:/page/error"; } }

3.6 创建用户登录页面

<%@ page contentType="text/html;charset=UTF-8" language="java" %> <html> <head> <title>Title</title> </head> <body> ${msg} <form action="/user/userLogin" method="post"> 用户名：<input type="text" name="username"/><br/> 密码：<input type="password" name="userpwd"/><br/> <input type="submit" value="OK"/> </form> </body> </html>

3.7 创建异常提醒页面

<%@ page contentType="text/html;charset=UTF-8" language="java" %> <html> <head> <title>Title</title> </head> <body> 出错了，请与管理员联系：sky@sky.com </body> </html>

3.8 创建页面跳转控制器

/** * 页面跳转控制器 * @author sky * @create 2020-09-26 13:05 */ @Controller public class PageController { /** * 请求首页 */ @RequestMapping("/") public String showIndex() { return "index"; } /** * 处理页面跳转请求 */ @RequestMapping("/page/{page}") public String showPage(@PathVariable String page) { return page; } }

3.9 创建判断用户是否登录的拦截器

/** * 判断用户是否登录 * @author sky * @create 2020-09-26 13:22 */ public class LoginInterceptor implements HandlerInterceptor { @Override public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception { HttpSession session = request.getSession(); Users user = (Users) session.getAttribute("user"); if(user == null || user.getUsername().length() >= 0) { response.sendRedirect("/page/login"); return false; } return true; } @Override public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception { } @Override public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception { } }

3.10 配置拦截器

在SpringMVC配置文件中配置拦截器

<!--配置拦截器--> <mvc:interceptors> <mvc:interceptor> <mvc:mapping path="/**"/> <mvc:exclude-mapping path="/page/login"/> <mvc:exclude-mapping path="/user/userLogin"/> <mvc:exclude-mapping path="/page/error"/> <bean class="com.sky.interceptor.LoginInterceptor"/> </mvc:interceptor> </mvc:interceptors>

四、记录用户登录日志

4.1 创建登录日志记录切面

/** * 用户登录日记记录切面 * @author sky * @create 2020-09-26 18:26 */ @Aspect @Component public class UsersLoginLogAOP { @Autowired private LogsMapper logsMapper; /** * 配置切点 */ @Pointcut("execution(* com.sky.service.UsersService.userLogin(..))") public void myPointcut() { } /** * 在后置通知中记录登录日记 * @param joinPoint */ @AfterReturning("myPointcut()") public void userLoginLog(JoinPoint joinPoint) { Object[] objects = joinPoint.getArgs(); UsersExt users = (UsersExt) objects[0]; Logs logs = new Logs(); logs.setLogtime(new Date()); logs.setUsername(users.getUsername()); logs.setIp(users.getIp()); this.logsMapper.insertSelective(logs); } }

4.2 创建Users扩展实体类

public class UsersExt extends Users { private String ip; public String getIp() { return ip; } public void setIp(String ip) { this.ip = ip; } }

4.3 修改控制器

/** * 处理用户登录请求 * @param users * @param session * @return */ @RequestMapping("/userLogin") public String userLogin(UsersExt users, HttpSession session, HttpServletRequest request) { String ip = request.getRemoteAddr(); users.setIp(ip); Users user = this.usersService.userLogin(users); session.setAttribute("user", user); return "redirect:/page/index"; }

4.4 配置切面

修改applicationContext-service文件

<!--配置注解扫描--> <context:component-scan base-package="com.sky.service,com.sky.aop"/>

修改applicationContext-trans.xml文件

<aop:aspectj-autoproxy proxy-target-class="true"/>

五、项目总架构

六、运行结果

登录成功 -> 数据库记录登录信息

登录失败 -> 数据库不记录登录信息