SSM整合
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.SSM整合
Spring,SpringMVC,Mybatis
一:Spring整合MyBatis
第一步:导入架包
<!-- Mysql jar包-->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.38</version>
</dependency>
<!-- MyBatis jar包-->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.2.2</version>
</dependency>
<!-- MyBatis-Spring jar包-->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.2.0</version>
</dependency>
<dependency>
<!--Spring jar包-->
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>3.2.13.RELEASE</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>RELEASE</version>
</dependency>
<!--事务-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>4.1.9.RELEASE</version>
</dependency>
第二步:搭建分层
接口:
查询所有信息
public interface userdao {
public List<User> selectUserinfo()throws Exception;
接口实现:public classuserdaoimp implements userdao {
SqlSessionTemplate sqlSession;
public SqlSessionTemplate getSqlSession() {
return sqlSession;
}
public void setSqlSession(SqlSessionTemplate sqlSession) {
this.sqlSession= sqlSession;
}
public List<User> selectUserinfo()throws Exception {
return sqlSession.selectList("selectUserinfo");
}
}
小配置:
<?xml version="1.0"encoding="ISO-8859-1"?>
<!DOCTYPE mapper
PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mappernamespace="cn.dao.userdao">
<selectid="selectUserinfo"resultType="User">
SELECT * from user
</select>
</mapper>
Entity省略
Service:
接口:
public interface userservice {
public List<User> selectUserinfo()throws Exception;
}
接口实现:
public class userserviceimp implementsuserservice {
userdao dao;
public userdao getDao() {
return dao;
}
public void setDao(userdao dao) {
this.dao= dao;
}
public List<User> selectUserinfo()throws Exception {
return dao.selectUserinfo();
}
database.properties
jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/smbms?useUnicode=true&characterEncoding=UTF-8
jdbc.username=root
jdbc.password=1234
小配置:
<?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>
<typeAliases>
<packagename="cn.entity"></package>
</typeAliases>
</configuration>
大配置:
<!--1.dbcp数据源-->
<beanid="dataSource"class="org.apache.commons.dbcp.BasicDataSource">
<propertyname="driverClassName"value="com.mysql.jdbc.Driver"></property>
<propertyname="url"value="jdbc:mysql:///smbms"></property>
<propertyname="username"value="root"></property>
<propertyname="password"value="1234"></property>
</bean>
<!--2.配置SqlSessionFactoryBean-->
<beanid="SqlSessionFactory"class="org.mybatis.spring.SqlSessionFactoryBean">
<propertyname="dataSource"ref="dataSource"></property>
<propertyname="configLocation"value="classpath:mybatis-config.xml"></property>
</bean>
<beanclass="org.mybatis.spring.mapper.MapperScannerConfigurer">
<propertyname="basePackage"value="cn.dao"/>
<propertyname="sqlSessionFactoryBeanName"value="SqlSessionFactory"/>
</bean>
<!--5.sevice注入dao-->
<beanid="userservice"class="cn.service.imp.userserviceimp">
<propertyname="dao"ref="userdao"></property>
</bean>
</beans>
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