spring-第N篇整合SSM，即Mybatis+Spring+Spring MVC
1、Mybatis的配置使用
1》Jar包：mybatis-3.4.5.jar、mysql-connector-6.0.2或者ojdbc6-11.2.0.4.jar。
2》编写conf.xml，用于构建SqlSessionFactory。
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd"> <configuration> <settings> <!-- 配置用于控制台输出sql日志。低版本的mybatis不支持logImpl --> <setting name="logImpl" value="LOG4J"/> </settings> <environments default="oracle"> <environment id="oracle"> <!-- 指定事务管理类型，type="JDBC"指直接使用JDBC的提交与回滚 --> <transactionManager type="JDBC" /> <!-- 配置数据库连接信息 --> <dataSource type="POOLED"> <property name="driver" value="oracle.jdbc.OracleDriver" /> <property name="url" value="jdbc:oracle:thin:@127.0.0.1:1521:orcl" /> <property name="username" value="scott" /> <property name="password" value="scott" /> </dataSource> </environment> <environment id="mysql"> <transactionManager type="JDBC" /> <!-- 配置数据库连接信息 --> <dataSource type="POOLED"> <property name="driver" value="com.mysql.jdbc.Driver" /> <property name="url" value="jdbc:mysql://127.0.0.1:3306/world" /> <property name="username" value="root" /> <property name="password" value="root" /> </dataSource> </environment> </environments> <mappers> <!-- 注册empMapper.xml文件--> <mapper resource="com/lfy/mapping/empMapper.xml"/> </mappers> </configuration>
3》编写mapper.xml、或者使用注解、或者mapper接口。
<?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd"> <!-- 为这个mapper指定一个唯一的namespace--> <mapper namespace="com.lfy.mapping.empMapper"> <select id="getEmp" parameterType="int" resultType="com.lfy.bean.Emp"> select * from emp where empno=#{empno} </select> </mapper>
4》获取SqlSession，使用SqlSession调用相关方法进行数据库操作。
package com.lfy.Util; import java.io.InputStream; import org.apache.ibatis.session.SqlSession; import org.apache.ibatis.session.SqlSessionFactory; import org.apache.ibatis.session.SqlSessionFactoryBuilder; public class MyBatisUtil { /** * 获取SqlSessionFactory * @return SqlSessionFactory */ public static SqlSessionFactory getSqlSessionFactory() { String resource = "conf.xml"; InputStream is = MyBatisUtil.class.getClassLoader().getResourceAsStream(resource); SqlSessionFactory factory = new SqlSessionFactoryBuilder().build(is); return factory; } /** * 获取SqlSession * @return SqlSession */ public static SqlSession getSqlSession() { return getSqlSessionFactory().openSession(); } /** * 获取SqlSession * @param isAutoCommit * true 表示创建的SqlSession对象在执行完SQL之后会自动提交事务 * false 表示创建的SqlSession对象在执行完SQL之后不会自动提交事务，这时就需要我们手动调用sqlSession.commit()提交事务 * @return SqlSession */ public static SqlSession getSqlSession(boolean isAutoCommit) { return getSqlSessionFactory().openSession(isAutoCommit); } /** * 获取对应的mapper接口 * @param clazz * @return */ public static <T> T getMapper(Class<T> clazz){ return getSqlSessionFactory().openSession().getMapper(clazz); } /** * 获取对应的mapper接口 * @param clazz mapper接口类型 * @param isAutoCommit * true 表示创建的SqlSession对象在执行完SQL之后会自动提交事务 * false 表示创建的SqlSession对象在执行完SQL之后不会自动提交事务，这时就需要我们手动调用sqlSession.commit()提交事务 * @return */ public static <T> T getMapper(Class<T> clazz,boolean isAutoCommit){ return getSqlSessionFactory().openSession(isAutoCommit).getMapper(clazz); } }
2、Spring的配置使用
1》Jar包：spring、commons-logging.1.2.jar、aspectj-1.8.0.jar、aopalliance-1.0.jar
2》编写beans.xml，注册spring Bean。
<?xml version="1.0" encoding="UTF-8"?> <!-- spring配置文件的根元素，使用spring-beans-4.0.xsd语义约束 --> <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" 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"> <!-- 指定自动搜索bean组件、自动搜索切面类 --> <context:component-scan base-package="com.lfy.aspect,com.lfy.impl"> <context:include-filter type="annotation" expression="org.aspectj.lang.annotation.Aspect"/> </context:component-scan> <!-- 或者不打算使用spring的xml schema配置方式，则应该在spring配置文件中增加如下片段 来启动@AspectJ的支持 <bean class="org.springframework.aop.aspectj.annotation. AnnotationAwareAspectJAutoProxyCreator"/> 为了在spring应用中启动@AspectJ的支持，还需要在应用的类加载路径下增加两个AspectJ库: aspectjweaver.jar和aspectjrt.jar，除此之外，spring AOP还依赖aopalliance.jar --> <!-- 启动@AspectJ支持 --> <aop:aspectj-autoproxy/> <!-- 完全不打算使用spring的xml schema配置方式使用spring AOP，即bean的注册也使用注解的形式。 应该加入如下代码 ，AnnotationAwareAspectJAutoProxyCreator是一个bean后处理器，该bean 后处理器将会为容器中的所有bean生成AOP代理 --> <bean class="org.springframework.aop.aspectj.annotation.AnnotationAwareAspectJAutoProxyCreator"/> </beans>
3》编写相关的bean或者AOP切面。可以是注解类型的、也可以是bean配置文件配置的，切面有5种类型（before、around、afterThrowing、afterReturning、after）。
4》根据beans.xml创建ApplicationContext，根据ApplicationContext获取容器中的bean使用。
3、Spring MVC的配置使用
1》Jar包：spring、commons-logging-1.2.jar
2》在Web.xml中配置前端控制器，并引入springmvc-config.xml
<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0"> <display-name>springMVCInterceptorTest-1.0.0</display-name> <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*:config/spring/springmvc-config.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <!-- 让Spring MVC的前端控制器拦截所有请求 --> <servlet-mapping> <servlet-name>springmvc</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <!-- 编码过滤器 --> <filter> <filter-name>characterEncodingFilter</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> <!-- <init-param> <param-name>forceEncoding</param-name> <param-value>true</param-value> </init-param> --> </filter> <filter-mapping> <!-- 或者 <filter-name>encodingFilter</filter-name> --> <filter-name>characterEncodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> </web-app>
springmvc-config.xml
<?xml version="1.0" encoding="utf-8"?> <beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.springframework.org/schema/beans" xmlns:p="http://www.springframework.org/schema/p" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:context="http://www.springframework.org/schema/context" 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.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd"> <mvc:default-servlet-handler/>
<!-- 扫描控制器 --> <context:component-scan base-package="com.lfy.controller"/> <!-- 映射器、适配器策略 --> <mvc:annotation-driven/> <!-- 视图解析器 --> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" p:prefix="/WEB-INF/content/" p:suffix=".jsp" /> </beans>
3》@Controller编写控制器、@RequestMapping配置处理方法路径。额外的增加自定义类型转换器、拦截器。
4、Mybatis+Spirng+Spring MVC的配置使用（常规复制jar包的形式）
1》搭建的jar包
1>springframework框架jar包。springframework-5.0.1框架jar包+commons-logging-1.2日志jar包
2>Mybatis框架jar包。mybatis-3.4.5.jar及mybatis-3.4.5包下lib文件所有的jar包：cblib-3.2.5.jar、javassist-3.22.0-CR2.jar、log4j-1.2.17.jar、log4j-api-2.3.jar、log4j-core-2.3.jar、ognl-3.1.15.jar等。
3>Mybatis整合spring中间件的jar包。mybatis-spring-1.3.1.jar，主要作用是：
1>>在spring中配置Mybatis工厂类
2>>在DAO层使用spring注入的工具Bean对数据进行操作。
4>aspectj框架jar包。aspectjrt.jar、aspectjtools.jar、aspectjweaver.jar、org.aspectj.matcher.jar。
5>AOP联盟jar包。aopalliance.jar。
6>数据库驱动包。mysql-connector-java-5.1.30.jar。
7>数据源c3p0所需的jar包。c3p0-0.9.5.2.jar、hibernate-c3p0-4.3.5.Final.jar、mchange-commons-java-0.2.1.1.jar。
8>jsp、JSTL标签库jar包。javax.servlet.jsp.jstl-1.2.1.jar、javax.servlet.jsp.jstl-api-1.2.1.jar
2》项目目录结构
db.properties
dataSource.driverClass=com.mysql.jdbc.Driver dataSource.jdbcUrl=jdbc:mysql://127.0.0.1:3306/mybatis dataSource.user=root dataSource.password=root dataSource.maxPoolSize=20 dataSource.maxIdleTime = 1000 dataSource.minPoolSize=6 dataSource.initialPoolSize=5
web.xml：整合spring、springMVC
<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1"> <display-name>springMybatisSpringMVC-1.0.0</display-name> <!-- 配置spring核心监听器，默认会以 /WEB-INF/applicationContext.xml作为配置文件 --> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!-- contextConfigLocation参数用来指定Spring的配置文件 --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>/WEB-INF/applicationContext*.xml</param-value> </context-param> <!-- 定义Spring MVC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>/WEB-INF/springmvc-config.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <!-- 让Spring MVC的前端控制器拦截所有请求 --> <servlet-mapping> <servlet-name>springmvc</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <!-- 编码过滤器 --> <filter> <filter-name>characterEncodingFilter</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>characterEncodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> </web-app>
springmvc-config.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:mvc="http://www.springframework.org/schema/mvc" xmlns:p="http://www.springframework.org/schema/p" 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/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"> <mvc:default-servlet-handler/> <context:component-scan base-package="com.lfy.controller"/> <!-- 映射器、适配器 --> <mvc:annotation-driven/> <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver" p:prefix="/WEB-INF/content/" p:suffix=".jsp"/> </beans>
applicationContext.xml：整合Mybatis
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:mybatis="http://mybatis.org/schema/mybatis-spring" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" 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/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 http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://mybatis.org/schema/mybatis-spring http://mybatis.org/schema/mybatis-spring.xsd "> <!-- 扫描com.lfy包下面的java文件，有Spring的相关注解的类，则把这些类注册为Spring的bean --> <context:component-scan base-package="com.lfy"/> <!-- 使用PropertyOverrideConfigurer后处理器加载数据源参数 --> <context:property-override location="classpath:db.properties"/> <!-- 配置c3p0数据源 --> <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"/> <!-- 配置SqlSessionFactory，org.mybatis.spring.SqlSessionFactoryBean是Mybatis社区开发用于整合Spring的bean --> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean" p:dataSource-ref="dataSource"/>
<!-- mybatis:scan会将com.lfy.mapper包里的所有接口当作mapper配置，之后可以自动引入mapper类-->
<mybatis:scan base-package="com.lfy.mapper"/>
<!-- JDBC事务管理器 --> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager" p:dataSource-ref="dataSource"/> <!-- 启用支持annotation注解方式事务管理 --> <tx:annotation-driven transaction-manager="transactionManager"/> </beans>
5、Mybatis+Spring+SpringMVC的配置使用（Maven）
1》项目目录结构
2》引入依赖
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.lfy.cn</groupId> <artifactId>mavenMybatisSpringSpringMVC-1.0.0</artifactId> <packaging>war</packaging> <version>0.0.1-SNAPSHOT</version> <name>mavenMybatisSpringSpringMVC-1.0.0 Maven Webapp</name> <url>http://maven.apache.org</url> <properties> <!-- 自定义的spring的版本号 --> <spring.version>5.0.1.RELEASE</spring.version> <!-- 自定义的mybaits的版本号 --> <mybatis.version>3.4.5</mybatis.version> <!-- 自定义的mybaits-spring的版本号 --> <mybatis.spring.version>1.3.1</mybatis.spring.version> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> </properties> <dependencies> <!-- springMVC的jar包，由于springMVC依赖 springBeans,springContext,springCore 所以这些jar包会被导入进来--> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>${spring.version}</version> <scope>compile</scope> </dependency> <!-- spring-tx 事务 --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-tx</artifactId> <version>${spring.version}</version> <scope>compile</scope> </dependency> <!-- spring-jdbc --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>${spring.version}</version> <scope>compile</scope> </dependency> <!-- aspectjweaver aop 依赖该jar包--> <dependency> <groupId>org.aspectj</groupId> <artifactId>aspectjweaver</artifactId> <version>1.8.13</version> </dependency> <!-- servlet的jar包 begin --> <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <version>4.0.1</version> <scope>compile</scope> </dependency> <!-- servlet.jsp-api --> <dependency> <groupId>javax.servlet.jsp</groupId> <artifactId>javax.servlet.jsp-api</artifactId> <version>2.3.1</version> <scope>provided</scope> </dependency> <!-- javax.servlet.jsp.jstl-api --> <dependency> <groupId>javax.servlet.jsp.jstl</groupId> <artifactId>javax.servlet.jsp.jstl-api</artifactId> <version>1.2.2</version> </dependency> <!-- taglibs-standard-impl jstl的实现 --> <dependency> <groupId>org.apache.taglibs</groupId> <artifactId>taglibs-standard-impl</artifactId> <version>1.2.5</version> </dependency> <!-- servlet的jar包 end --> <!-- mybatis begin --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>${mybatis.version}</version> <scope>compile</scope> </dependency> <!-- mybatis-spring --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>${mybatis.spring.version}</version> <scope>compile</scope> </dependency> <!--druid 连接池 --> <dependency> <groupId>com.alibaba</groupId> <artifactId>druid</artifactId> <version>1.1.10</version> <scope>compile</scope> </dependency> <!-- mysql的连接驱动 --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.46</version> </dependency> <!-- mybatis end --> <!--log4j2 begin --> <dependency> <groupId>org.apache.logging.log4j</groupId> <artifactId>log4j-core</artifactId> <version>2.1</version> </dependency> <dependency> <groupId>org.apache.logging.log4j</groupId> <artifactId>log4j-api</artifactId> <version>2.1</version> </dependency> <dependency> <groupId>org.apache.logging.log4j</groupId> <artifactId>log4j-web</artifactId> <version>2.1</version> </dependency> <!--log4j2 end --> <!-- junit --> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.11</version> <scope>test</scope> </dependency> </dependencies> <build> <finalName>mavenMybatisSpringSpringMVC-1.0.0</finalName> </build> </project>
3》web.xml
<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1"> <display-name>mavenMybatisSpringSpringMVC-1.0.0</display-name> <!-- 配置编码 --> <filter> <filter-name>characterEncodingFilter</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> <init-param> <param-name>forceRequestEncoding</param-name> <param-value>true</param-value> </init-param> <init-param> <param-name>forceResponseEncoding</param-name> <param-value>true</param-value> </init-param> </filter> <filter-mapping> <filter-name>characterEncodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <!-- spring IOC容器 --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring/applicationContext-*.xml</param-value> </context-param> <!-- 加载监听器 --> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!-- 配置spring mvc的前端控制器 --> <servlet> <servlet-name>spring-mvc</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <!-- 本地的上下文配置 加载springmvc的配置文件 --> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring/springmvc-config.xml</param-value> </init-param> <!-- 启动容器的时候加载 --> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>spring-mvc</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <!-- log4j2-begin --> <context-param> <param-name>isLog4jAutoInitializationDisabled</param-name> <param-value>false</param-value> </context-param> <context-param> <param-name>log4jConfiguration</param-name> <param-value>classpath:log4j2.xml</param-value> </context-param> <listener> <listener-class>org.apache.logging.log4j.web.Log4jServletContextListener</listener-class> </listener> <filter> <filter-name>log4jServletFilter</filter-name> <filter-class>org.apache.logging.log4j.web.Log4jServletFilter</filter-class> </filter> <filter-mapping> <filter-name>log4jServletFilter</filter-name> <url-pattern>/*</url-pattern> <dispatcher>REQUEST</dispatcher> <dispatcher>FORWARD</dispatcher> <dispatcher>INCLUDE</dispatcher> <dispatcher>ERROR</dispatcher> </filter-mapping> <!-- log4j2-end --> </web-app>
4》springmvc-config.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:mvc="http://www.springframework.org/schema/mvc" xmlns:p="http://www.springframework.org/schema/p" 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/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd "> <!-- springmvc的配置文件: 扫描handler对象 配置注解的处理器映射器和处理器适配器 配置内部资源视图解析器 处理不了的静态资源交给tomcat --> <context:component-scan base-package="com.login.web.controller"/> <mvc:annotation-driven/> <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver" p:prefix="/WEB-INF/content/" p:suffix=".jsp"/> <mvc:default-servlet-handler/> </beans>
5》applicationContext-dao.xml
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:mybatis="http://mybatis.org/schema/mybatis-spring" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" 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/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 http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://mybatis.org/schema/mybatis-spring http://mybatis.org/schema/mybatis-spring.xsd "> <!-- spring 整合 mybatis 的配置: 配置数据库连接池 配置sqlSessionFactory 配置扫描器 配置扫描所有的service类 --> <!-- 加载db.properties文件 --> <context:property-placeholder location="classpath:db.properties"/> <!-- 配置数据库连接池 --> <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource"> <property name="driverClassName" value="${jdbc_driverClassName}"/> <property name="url" value="${jdbc_url}"/> <property name="username" value="${jdbc_username}"/> <property name="password" value="${jdbc_password}"/> </bean> <!-- 配置sqlSessionFactory --> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <!-- 数据库连接池 --> <property name="dataSource" ref="dataSource"/> <!-- mybatis的配置文件 --> <property name="configLocation" value="classpath:mybatis/mybatis-config.xml"/> <!-- mapper文件 --> <property name="mapperLocations"> <!--加载所有的mapper文件 --> <list> <!-- 或者 <value>classpath:mybatis/mappers/*.xml</value> --> <value>classpath:mybatis/mappers/IUserMapper.xml</value> </list> </property> </bean> <!-- 配置mapper扫描器 --> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/> <property name="basePackage" value="com.login.dao"/> </bean> <!--扫描所有的service作为spring bean --> <context:component-scan base-package="com.login.service"/> </beans>
6》applicationContext-tx.xml
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:mybatis="http://mybatis.org/schema/mybatis-spring" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:aop="http://www.springframework.org/schema/aop" 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 http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://mybatis.org/schema/mybatis-spring http://mybatis.org/schema/mybatis-spring.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd "> <!-- 配置spring的事务 mybatis采用的是spring中的jdbc中的事务管理（配置事务管理器） 事务增强 aop切面 --> <!--事务管理 --> <bean id="tx" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource"></property> </bean> <!-- 增强 --> <tx:advice id="tx_advice" transaction-manager="tx" > <tx:attributes> <!-- 事务传播规则 --> <tx:method name="save*" propagation="REQUIRED"/> <tx:method name="add*" propagation="REQUIRED"/> <tx:method name="delete*" propagation="REQUIRED"/> <tx:method name="update*" propagation="REQUIRED"/> <tx:method name="do*" propagation="REQUIRED"/> <tx:method name="get*" propagation="SUPPORTS" read-only="true"/> <tx:method name="list*" propagation="SUPPORTS" read-only="true"/> <tx:method name="find*" propagation="SUPPORTS" read-only="true"/> <tx:method name="query*" propagation="SUPPORTS" read-only="true"/> <tx:method name="count*" propagation="SUPPORTS" read-only="true"/> </tx:attributes> </tx:advice> <!-- Aop 切面 proxy-target-class="false" 是默认的 =====》 默认使用jdk动态代理 基于接口 proxy-target-class="true" =============》使用cglib动态代理 基于类 --> <aop:config proxy-target-class="false"> <aop:advisor advice-ref="tx_advice" pointcut="execution(* com.login.service.*Service.*(..) )"/> </aop:config> </beans>
7》mybatis-config.xml
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd"> <configuration> <settings> <!-- 配置mybatis的日志 --> <setting name="logImpl" value="LOG4J2"/> <!--开启延迟加载 --> <setting name="lazyLoadingEnabled" value="true"/> <!--设置不要积极去加载 --> <setting name="aggressiveLazyLoading" value="false"/> <!--延迟加载的触发方法 --> <setting name="lazyLoadTriggerMethods" value="clone"/> </settings> <!-- 别名 --> <typeAliases> <package name="com.login.dao"/> </typeAliases> </configuration>
8》IUserMapper.xml
<?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd"> <mapper namespace="com.login.dao.IUserMapper"> <select id="getUserByUsername" parameterType="map" resultType="com.login.entity.User"> SELECT * FROM user WHERE username = #{username} and password= #{password} </select> </mapper>
9》db.properties
jdbc_driverClassName=com.mysql.jdbc.Driver jdbc_url=jdbc:mysql://localhost:3306/db_ssm jdbc_username=root jdbc_password=root
10》log4j2.xml
<?xml version="1.0" encoding="UTF-8"?> <!-- log4j2使用说明（create By SeanXiao ）： 使用方式如下： private static final Logger logger = LogManager.getLogger(实际类名.class.getName()); 2、日志说明： （1）请根据实际情况配置各项参数 （2）需要注意日志文件备份数和日志文件大小，注意预留目录空间 （3）实际部署的时候backupFilePatch变量需要修改成linux目录 --> <configuration status="OFF"> <Properties> <Property name="fileName">front.log</Property> <Property name="backupFilePatch">C:/Users/lfy/Desktop/work/temp/log/</Property> </Properties> <!--先定义所有的appender--> <appenders> <!--这个输出控制台的配置--> <Console name="Console" target="SYSTEM_OUT"> <!--控制台只输出level及以上级别的信息（onMatch），其他的直接拒绝（onMismatch）--> <ThresholdFilter level="trace" onMatch="ACCEPT" onMismatch="DENY" /> <!--这个都知道是输出日志的格式--> <PatternLayout pattern="%d{HH:mm:ss.SSS} %-5level %class{36} %L %M - %msg%xEx%n" /> </Console> <!--这个会打印出所有的信息，每次大小超过size，则这size大小的日志会自动存入按年份-月份建立的文件夹下面并进行压缩，作为存档--> <RollingFile name="RollingFile" fileName="${backupFilePatch}${fileName}" filePattern="${backupFilePatch}$${date:yyyy-MM}/app-%d{yyyyMMddHHmmssSSS}.log.gz"> <PatternLayout pattern="%d{yyyy.MM.dd 'at' HH:mm:ss.SSS z} %-5level %class{36} %L %M - %msg%xEx%n" /> <!-- 日志文件大小 --> <SizeBasedTriggeringPolicy size="20MB" /> <!-- 最多保留文件数 --> <DefaultRolloverStrategy max="20"/> </RollingFile> </appenders> <!--然后定义logger，只有定义了logger并引入的appender，appender才会生效--> <loggers> <!--建立一个默认的root的logger--> <Logger name="com.login.service" level="trace" additivity="true"> <AppenderRef ref="RollingFile" /> </Logger> <Root level="info"> <AppenderRef ref="Console" /> </Root> </loggers> </configuration>
11》Controller
package com.login.web.controller; import org.apache.logging.log4j.LogManager; import org.apache.logging.log4j.Logger; 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.login.entity.User; import com.login.service.IUserService; @Controller @RequestMapping("/UserController") public class UserController { private static final Logger logger = LogManager.getLogger(UserController.class.getName()); @Autowired private IUserService service; /** * redirect page * @return */ @RequestMapping(path="/loginForm") public String loginForm() { return "loginForm"; } @RequestMapping(path="/login") public ModelAndView login(String username,String password,ModelAndView mv) { User user = service.login(username, password); if(user != null){ logger.info(user); mv.addObject("user", user); mv.setViewName("success"); }else{ mv.addObject("message", "登录名或密码错误，请重新输入!"); mv.setViewName("loginForm"); } return mv; } }
12》Service
package com.login.service.impl; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import com.login.dao.IUserMapper; import com.login.entity.User; import com.login.service.IUserService; @Service public class UserServiceImpl implements IUserService { @Autowired private IUserMapper mapper; @Override public User login(String username, String password) { return mapper.getUserByUsername(username,password); } }
13》DAO
package com.login.dao; import org.apache.ibatis.annotations.Param; import com.login.entity.User; public interface IUserMapper { User getUserByUsername(@Param("username") String username,@Param("password") String password); }
14》Entity
package com.login.entity; import java.io.Serializable; public class User implements Serializable { private static final long serialVersionUID = 1L; private String username; private String password; public User() { super(); } 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; } @Override public String toString() { return "User=[username="+username+",password="+password+"]"; } }
