SSM的整合
SSM的整合
-
pom文件中新增依赖
<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/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0modelVersion> <groupId>com.qfedugroupId> <artifactId>Days26SSM02artifactId> <version>1.0-SNAPSHOTversion> <packaging>warpackaging> <properties> <spring-version>4.3.6.RELEASEspring-version> properties> <dependencies> <dependency> <groupId>org.springframeworkgroupId> <artifactId>spring-webmvcartifactId> <version>${spring-version}version> dependency> <dependency> <groupId>com.fasterxml.jackson.coregroupId> <artifactId>jackson-databindartifactId> <version>2.8.10version> dependency> <dependency> <groupId>mysqlgroupId> <artifactId>mysql-connector-javaartifactId> <version>5.1.44version> dependency> <dependency> <groupId>org.mybatisgroupId> <artifactId>mybatisartifactId> <version>3.4.4version> dependency> <dependency> <groupId>org.mybatisgroupId> <artifactId>mybatis-springartifactId> <version>1.3.0version> dependency> <dependency> <groupId>org.springframeworkgroupId> <artifactId>spring-testartifactId> <version>${spring-version}version> dependency> <dependency> <groupId>org.springframeworkgroupId> <artifactId>spring-jdbcartifactId> <version>${spring-version}version> dependency> <dependency> <groupId>org.aspectjgroupId> <artifactId>com.springsource.org.aspectj.weaverartifactId> <version>1.6.8.RELEASEversion> dependency> <dependency> <groupId>com.alibabagroupId> <artifactId>druidartifactId> <version>1.0.28version> dependency> <dependency> <groupId>log4jgroupId> <artifactId>log4jartifactId> <version>1.2.17version> dependency> <dependency> <groupId>junitgroupId> <artifactId>junitartifactId> <version>4.12version> dependency> <dependency> <groupId>org.projectlombokgroupId> <artifactId>lombokartifactId> <version>1.18.6version> <scope>providedscope> dependency> dependencies> <build> <resources> <resource> <directory>src/main/javadirectory> <includes> <include>**/*.xmlinclude> includes> <filtering>falsefiltering> resource> resources> <plugins> <plugin> <groupId>org.apache.maven.pluginsgroupId> <artifactId>maven-compiler-pluginartifactId> <version>3.6.1version> <configuration> <source>1.8source> <target>1.8target> configuration> plugin> <plugin> <groupId>org.apache.tomcat.mavengroupId> <artifactId>tomcat7-maven-pluginartifactId> <version>2.2version> <configuration> <path>/path> <port>8888port> configuration> plugin> plugins> build> project> -
Web.xml
<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_3_1.xsd" version="3.1"> <servlet> <servlet-name>dispatcherServletservlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServletservlet-class> <init-param> <param-name>contextConfigLocationparam-name> <param-value>classpath:spring-mvc.xmlparam-value> init-param> servlet> <servlet-mapping> <servlet-name>dispatcherServletservlet-name> <url-pattern>/url-pattern> servlet-mapping> <filter> <filter-name>encodefilter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilterfilter-class> <init-param> <param-name>encodingparam-name> <param-value>UTF-8param-value> init-param> filter> <filter-mapping> <filter-name>encodefilter-name> <url-pattern>/*url-pattern> filter-mapping> web-app> -
resources下的db.properties
url=jdbc:mysql://localhost:3306/hello2 driver=com.mysql.jdbc.Driver user=root pass=123456 maxActive=50 minIdle=1 -
resources下的spring-mvc.xml
<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"> <context:annotation-config /> <context:component-scan base-package="com.qfedu.controller" /> <context:component-scan base-package="com.qfedu.service" /> <mvc:annotation-driven /> <mvc:default-servlet-handler /> <import resource="classpath:spring-mybatis.xml" /> beans> -
resource下的spring-mybatis.xml
<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: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-4.3.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.3.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.3.xsd">
<context:property-placeholder location="classpath:db.properties" />
<bean id="ds" class="com.alibaba.druid.pool.DruidDataSource">
<property name="url" value="${url}">property>
<property name="driverClassName" value="${driver}" />
<property name="username" value="${user}" />
<property name="password" value="${pass}" />
bean>
<bean id="sf" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="typeAliasesPackage" value="com.qfedu.pojo" />
<property name="mapperLocations" value="classpath:com/qfedu/dao/mapper/*Mapper.xml" />
<property name="dataSource" ref="ds">property>
<property name="configLocation" value="classpath:mybatis-config.xml" />
bean>
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.qfedu.dao" />
<property name="sqlSessionFactoryBeanName" value="sf" />
bean>
<bean id="dtx" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="ds">property>
bean>
<tx:advice id="tx" transaction-manager="dtx">
<tx:attributes>
<tx:method name="save*" propagation="REQUIRED" isolation="DEFAULT" rollback-for="Exception" />
<tx:method name="insert*" propagation="REQUIRED" isolation="DEFAULT" rollback-for="Exception" />
<tx:method name="update*" propagation="REQUIRED" isolation="DEFAULT" rollback-for="Exception" />
<tx:method name="delete*" propagation="REQUIRED" isolation="DEFAULT" rollback-for="Exception" />
tx:attributes>
tx:advice>
<aop:config>
<aop:pointcut id="mpt" expression="execution(* com.qfedu.service.*.*(..))" />
<aop:advisor advice-ref="tx" pointcut-ref="mpt" />
aop:config>
beans>
-
resources下的mybatis-config.xml
<configuration> <settings> <setting name="logImpl" value="LOG4J" /> settings> configuration> -
resource下的log4j.properties
# Global logging configuration log4j.rootLogger=ERROR, stdout, F # MyBatis logging configuration... log4j.logger.com.qfedu.dao=TRACE # Console output... log4j.appender.stdout=org.apache.log4j.ConsoleAppender log4j.appender.stdout.layout=org.apache.log4j.PatternLayout log4j.appender.stdout.layout.ConversionPattern=%5p [%t] - %m%n log4j.appender.F = org.apache.log4j.DailyRollingFileAppender log4j.appender.F.File =myproj.log log4j.appender.F.Append = true log4j.appender.F.Threshold = DEBUG log4j.appender.F.layout=org.apache.log4j.PatternLayout log4j.appender.F.layout.ConversionPattern=%-d{yyyy-MM-dd HH\:mm\:ss}-[%p %F\:%L] %m%n -
配置文件结束，环境搭建完毕，开始编写代码， User.java
package com.qfedu.pojo; import lombok.AllArgsConstructor; import lombok.Data; import lombok.NoArgsConstructor; @Data @NoArgsConstructor @AllArgsConstructor public class User { private int uid; private String username; private String password; private int age; private String addr; } -
UserController.java
package com.qfedu.controller; import com.qfedu.pojo.User; import com.qfedu.service.IUserService; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.RestController; import javax.annotation.Resource; import java.util.ArrayList; import java.util.List; @RestController public class UserController { /** * 动态注入service对象 */ @Resource private IUserService userService; @GetMapping("/Users") public List<User> getUsers(){ return userService.getAllUsers(); } } -
IUserService.java
package com.qfedu.service; import java.util.List; import com.qfedu.pojo.User; public interface IUserService { List<User> getAllUsers(); } -
UserServiceImpl.java
package com.qfedu.service.impl; import java.util.List; import javax.annotation.Resource; import com.qfedu.dao.IUserDao; import com.qfedu.pojo.User; import com.qfedu.service.IUserService; import org.springframework.stereotype.Service; /** * 注意Service的实现类之上一定要添加service注解 */ @Service public class UserServiceImpl implements IUserService { /** * 动态注入dao组件 */ @Resource private IUserDao userDao; @Override public List<User> getAllUsers() { return userDao.getAllUsers(); } } -
IUserDao.java
package com.qfedu.dao; import com.qfedu.pojo.User; import java.util.List; public interface IUserDao { List<User> getAllUsers(); } -
dao/mapper下新增UserMapper.xml
<mapper namespace="com.qfedu.dao.IUserDao"> <select id="getAllUsers" resultType="user"> select * from user select> mapper> -
启动tomcat服务器插件，访问http://localhost:8888/Users，得到结果
