springmvc+spring+mybatis 简单搭建
源码：https://github.com/lewesYang/java_ssm_demo
pom.xml
<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.bift</groupId> <artifactId>demo</artifactId> <packaging>war</packaging> <version>0.0.1-SNAPSHOT</version> <name>wechat_demo Maven Webapp</name> <url>http://maven.apache.org</url> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>3.8.1</version> <scope>test</scope> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>3.2.11.RELEASE</version> <scope>compile</scope> <exclusions> <exclusion> <groupId>commons-logging</groupId> <artifactId>commons-logging</artifactId> </exclusion> </exclusions> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>3.2.11.RELEASE</version> </dependency> <dependency> <groupId>org.aspectj</groupId> <artifactId>aspectjweaver</artifactId> <version>1.8.0</version> </dependency> <dependency> <groupId>cglib</groupId> <artifactId>cglib</artifactId> <version>3.1</version> </dependency> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>3.2.7</version> </dependency> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>1.2.2</version> </dependency> <dependency> <groupId>com.alibaba</groupId> <artifactId>druid</artifactId> <version>1.0.9</version> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.30</version> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <version>3.1.0</version> <scope>provided</scope> </dependency> <dependency> <groupId>javax.servlet.jsp</groupId> <artifactId>jsp-api</artifactId> <version>2.1</version> <scope>provided</scope> </dependency> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.8.2</version> <scope>test</scope> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>3.2.11.RELEASE</version> <scope>test</scope> </dependency> <dependency> <groupId>jstl</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>jcl-over-slf4j</artifactId> <version>1.7.7</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> <version>1.7.7</version> </dependency> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>1.2.17</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> <version>1.7.7</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>2.3.3</version> </dependency> <dependency> <groupId>org.jdom</groupId> <artifactId>jdom</artifactId> <version>1.1.3</version> </dependency> <dependency> <groupId>commons-fileupload</groupId> <artifactId>commons-fileupload</artifactId> <version>1.3</version> </dependency> </dependencies> <build> <finalName>wechat_demo</finalName> <resources> <resource> <directory>src/main/java</directory> <includes> <include>**/*.xml</include> <include>**/*.properties</include> </includes> </resource> <resource> <directory>src/main/resources</directory> <includes> <include>**/*.xml</include> <include>**/*.properties</include> </includes> </resource> </resources> <plugins> <plugin> <artifactId>maven-compiler-plugin</artifactId> <version>2.5.1</version> <configuration> <source>1.6</source> <target>1.6</target> <encoding>UTF-8</encoding> </configuration> </plugin> <plugin> <artifactId>maven-surefire-plugin</artifactId> <version>2.12.4</version> <configuration> <includes> <include>**/*Tests.java</include> </includes> </configuration> </plugin> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-resources-plugin</artifactId> <version>2.6</version> <configuration> <encoding>UTF-8</encoding> </configuration> </plugin> <plugin> <groupId>org.apache.tomcat.maven</groupId> <artifactId>tomcat7-maven-plugin</artifactId> <version>2.2</version> <configuration> <path>/</path> <server>admin</server> <username>admin</username> <password>admin</password> </configuration> </plugin> </plugins> </build> </project>
springMVC 配置文件（名字为：dispatcher-servlet.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-3.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd" default-lazy-init="true"> <bean id="exceptionResolver" class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver"> <property name="exceptionMappings"> <props> <prop key="org.springframework.dao.DataAccessException"> dataAccessFailure </prop> </props> </property> </bean> <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> <property name="maxUploadSize" value="2097152" /> </bean> <!-- Configures the @Controller programming model --> <mvc:annotation-driven /> //这里需要注意一下 如果controller包下直接为类以下写法即可 如果有子包 需要加上.* <context:component-scan base-package="com.lewesyang.controller" /> <!-- 静态资源文件，不会被Spring MVC拦截 --> <mvc:resources location="/resource/" mapping="/resource/**" /> <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter"> <property name="messageConverters"> <list> <bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter" /> </list> </property> </bean> <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/WEB-INF/pages/" /> <property name="suffix" value=".jsp" /> </bean> </beans>
spring 配置文件 1
<?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:tx="http://www.springframework.org/schema/tx" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context" xmlns:websocket="http://www.springframework.org/schema/websocket" xmlns:task="http://www.springframework.org/schema/task" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task.xsd http://www.springframework.org/schema/websocket http://www.springframework.org/schema/websocket/spring-websocket.xsd"> <!-- Activates scanning of @Autowired --> <context:annotation-config /> <!-- Activates scanning of @Repository and @Service --> <context:component-scan base-package="com.lewesyang.service.*" /> <task:annotation-driven /> </beans>
2
<?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" default-lazy-init="true"> <!-- Activates scanning of @Autowired --> <context:annotation-config/> <!-- Activates scanning of @Repository and @Service --> <context:component-scan base-package="com.lewesyang.service.*"/> </beans>
3
<?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:tx="http://www.springframework.org/schema/tx"
xmlns:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context"
xmlns:task="http://www.springframework.org/schema/task"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task.xsd">
<context:property-placeholder location="classpath:*.properties" />
<!-- Add new DAOs here -->
<!--destroy-method="close"的作用是当数据库连接不使用的时候,就把该连接重新放到数据池中,方便下次使用调用 -->
<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource"
init-method="init" destroy-method="close">
<!-- 基本属性 url、model、password -->
<property name="driverClassName" value="${jdbc.driverClassName}" />
<property name="url" value="${jdbc.url}" />
<property name="username" value="${jdbc.username}" />
<property name="password" value="${jdbc.password}" />
<!-- 配置初始化大小、最小、最大 -->
<property name="initialSize" value="1" />
<property name="minIdle" value="1" />
<property name="maxActive" value="20" />
<!-- 配置获取连接等待超时的时间 -->
<property name="maxWait" value="60000" />
<!-- 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒 -->
<property name="timeBetweenEvictionRunsMillis" value="60000" />
<!-- 配置一个连接在池中最小生存的时间，单位是毫秒 -->
<property name="minEvictableIdleTimeMillis" value="300000" />
<property name="validationQuery" value="SELECT 0 from dual" />
<property name="testWhileIdle" value="true" />
<property name="testOnBorrow" value="false" />
<property name="testOnReturn" value="false" />
<!-- 打开PSCache，并且指定每个连接上PSCache的大小 如果用Oracle，则把poolPreparedStatements配置为true，mysql可以配置为false。分库分表较多的数据库，建议配置为false。 -->
<property name="poolPreparedStatements" value="false" />
<property name="maxPoolPreparedStatementPerConnectionSize"
value="20" />
<!-- 配置监控统计拦截的filters -->
<property name="filters" value="stat,wall" />
</bean>
<!-- 配置sessionFactory -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="mapperLocations" value="classpath*:mybatis/*.xml" />
</bean>
<!-- 扫描所有Mapper接口文件 -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="searchengine.mapper" />
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" />
</bean>
<!-- 配置事务 -->
<bean id="transactionManager"
class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource" />
</bean>
<!-- 定义事务通知(主要是针对指定事务管理器对应的事务实现配置事务参数) -->
<tx:advice id="txAdvice" transaction-manager="transactionManager">
<tx:attributes>
<!-- 对选定的方法配置详细的事务属性 -->
<!-- 一次执行多次查询来统计某些信息，这时为了保证数据整体的一致性，要用只读事务 -->
<tx:method name="get*" read-only="true" /><!-- 只读事务中不能对数据库做更改插入操作 -->
<tx:method name="save*" rollback-for="Exception" propagation="REQUIRED" />
<tx:method name="update*" rollback-for="Exception" propagation="REQUIRED" />
<tx:method name="delete*" rollback-for="Exception" propagation="REQUIRED" />
<tx:method name="insert*" rollback-for="Exception" propagation="REQUIRED" />
<tx:method name="remove*" rollback-for="Exception" propagation="REQUIRED" />
<tx:method name="modify*" rollback-for="Exception" propagation="REQUIRED" />
<tx:method name="create*" rollback-for="Exception" propagation="REQUIRED" />
<tx:method name="add*" rollback-for="Exception" propagation="REQUIRED" />
<!-- service层对数据库的更改以上面name的格式命名 支持事务 -->
<tx:method name="*" propagation="SUPPORTS" />
</tx:attributes>
</tx:advice>
<!--启用事务注解配置 -->
<tx:annotation-driven transaction-manager="transactionManager" />
<!-- 事务AOP配置 -->
<aop:config>
<!-- 声明事务切入点(配置哪些类的哪些方法参与事务) -->
<aop:pointcut id="AllServiceMethod"
expression="execution(* com.lewesyang.service.*.impl.*Impl.*(..))" />
<!-- 通知器(把事务通知绑定到切入点) -->
<aop:advisor pointcut-ref="AllServiceMethod" advice-ref="txAdvice" />
</aop:config>
</beans>
以上spring相关配置可以写在一个xml中；
jdbc 配置
jdbc.driverClassName=com.mysql.jdbc.Driver jdbc.url=jdbc:mysql://127.0.0.1:3306/test?useUnicode=true&characterEncoding=UTF-8 jdbc.username=root jdbc.password= jdbc.validationQuery=select 1 from dual
log4j配置
log4j.rootLogger =DEBUG,stdout
log4j.logger.org.springframework=INFO
log4j.logger.org.apache.commons=INFO
log4j.logger.org.apache=DEBUG
log4j.logger.java.sql =DEBUG
log4j.logger.com.ycombo.mapper=TRACE
#-----------------stdout logger--------------------------------------
log4j.appender.stdout =org.apache.log4j.ConsoleAppender
#log4j.appender.stdout.Target =System.out
log4j.appender.stdout.layout =org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern = %5p [%C:%M] -%m%n
#log4j.appender.stdout.layout.ConversionPattern =%d{yyyy MM dd HH:mm:ss} %5p %C:%M:%L - %m%n
#-------------- debug Logger ----------------------------------------
log4j.appender.lv_debug =org.apache.log4j.DailyRollingFileAppender
log4j.appender.lv_debug.File =../logs/admin_debug.log
log4j.appender.lv_debug.DatePattern='.'yyyy-MM-dd
log4j.appender.lv_debug.Append=true
log4j.appender.lv_debug.Threshold = DEBUG
log4j.appender.lv_debug.layout =org.apache.log4j.PatternLayout
log4j.appender.lv_debug.layout.ConversionPattern = %-d{yyyy-MM-dd HH:mm:ss} [%p] -[%c] %m%n
#log4j.appender.lv_debug.layout.ConversionPattern =%n+<%d{yyyy-MM-dd HH:mm:ss-S}><%l>%n+<%-5p>---<%t><%m>%n
#-------------- error logger -----------------------------------------
log4j.appender.lv_error = org.apache.log4j.DailyRollingFileAppender
log4j.appender.lv_error.File = ../logs/admin_error.log
log4j.appender.lv_error.DatePattern='.'yyyy-MM-dd
log4j.appender.lv_error.Append = true
log4j.appender.lv_error.Threshold = ERROR
log4j.appender.lv_error.layout = org.apache.log4j.PatternLayout
log4j.appender.lv_error.layout.ConversionPattern = %-d{yyyy-MM-dd HH:mm:ss} [%p] -[%c] %m%n
web.xml
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd" > <web-app> <display-name>demo</display-name> <context-param> <param-name>contextConfigLocation</param-name> <param-value> /WEB-INF/applicationContext*.xml </param-value> </context-param> <!-- ContextLoaderListener监听器的作用就是启动Web容器时，自动装配ApplicationContext的配置信息。 因为它实现了ServletContextListener这个接口，在web.xml配置这个监听器，启动容器时，就会默认执行它实现的方法 --> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <listener> <listener-class>org.springframework.web.context.request.RequestContextListener</listener-class> </listener> <servlet> <servlet-name>dispatcher</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>dispatcher</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> </web-app>