整合的配置文件:
spring (applicationContext.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:tx="http://www.springframework.org/schema/tx" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p" xmlns:mvc="http://www.springframework.org/schema/tool" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.2.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.2.xsd http://www.springframework.org/schema/tool http://www.springframework.org/schema/tool/spring-tool.xsd"> <!-- 配置数据源 --> <bean id="datasource" class="com.mchange.v2.c3p0.ComboPooledDataSource"> <!-- <property name="driverClass" value="com.mysql.jdbc.Driver" />--> <!-- <property name="jdbcUrl" value="jdbc:mysql://localhost:3306/test1?useUnicode=true&characterEncoding=UTF-8" />--> <!-- <property name="user" value="root" />--> <!-- <property name="password" value="root" />--> <!--连接Orcal--> <property name="driverClass" value="oracle.jdbc.driver.OracleDriver"/> <property name="jdbcUrl" value="jdbc:oracle:thin:localhost:1521:orcl"/> <property name="user" value="ssm"/> <property name="password" value="root"/> </bean> <!-- 。。。。。。。。。。。。。。。。。。。。 持久层。。。。。。。。。。。。。。。。。。。。 --> <!-- 整合Mybatis配置 --> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="datasource"></property> <!-- 加载mybatis的配置文件 --> <property name="configLocation" value="classpath:mybatis.xml"></property> <!-- 加载mybatis的Mapping文件 --> <property name="mapperLocations" value="classpath*:com/cn/entity/mybatisUserMapper.xml"></property> <!-- 加载指定包 并且直接指定类名为 简单的名字 --> <property name="typeAliasesPackage" value="com.cn.entity"></property> </bean> <bean id="sqlSessionTemplate" class="org.mybatis.spring.SqlSessionTemplate"> <constructor-arg name="sqlSessionFactory" ref="sqlSessionFactory"></constructor-arg> </bean> <!-- 。。。。。。。。。。。。。。。。。。。。 事务与Aop配置。。。。。。。。。。。。。。。。。。。。 --> <!-- 配置事务管理器 --> <bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="datasource"></property> </bean> <tx:advice id="advice" transaction-manager="txManager"> <tx:attributes> <!-- 默认只处理运行时异常,可加rollback-for="Exception/Throwable"等处理所有异常或包括错误 --> <tx:method name="save*" propagation="REQUIRED" rollback-for="Exception" /> <!--需要走事务所以需要配置隔离级别 pro..--> <tx:method name="update*" propagation="REQUIRED" rollback-for="Exception" /> <tx:method name="delete*" propagation="REQUIRED" rollback-for="Exception" /> <tx:method name="find*" read-only="true" /> </tx:attributes> </tx:advice> <aop:config> <aop:pointcut id="pointcut" expression="execution(* com.cn.service.impl.*.*(..))"/> <aop:advisor advice-ref="advice" pointcut-ref="pointcut"></aop:advisor> </aop:config> <!-- 。。。。。。。。。。。。。。。。。。。。 配置自动扫描。。。。。。。。。。。。。。。。。。。。 --> <!-- 自动扫描组件,要把controller去除,他们是在spring-mvc.xml中配置,如果不去除会影响事务管理。 --> <context:component-scan base-package="com.cn"> <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller" /> </context:component-scan> <!-- 如果使用注解实现aop 和事务的话就需要开启对应的 注解扫描器 --> <!-- <aop:aspectj-autoproxy/> --> <!-- <tx:annotation-driven transaction-manager="txManager"></tx:annotation-driven>--> <!-- 配置 转换器,对于在basePackage设置的包(包括子包)下的接口类, 如果接口类的全类名在Mapper.xml文件中和定义过命名空间一致, 将被转换成spring的BEAN,在调用 的地方通过@Autowired方式将可以注入接口实例 意思是只需要写接口不需要去写实现类--> <!-- <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">--> <!-- <property name="sqlSessionFactory" ref="sqlSessionFactory" />--> <!-- <property name="basePackage" value="com.gsj.dao" />--> <!-- </bean>--> </beans>
mybatis配置文件
<?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> <!-- 加载Src下的配置文件 --> <!-- <properties resource="db.properties"/>--> <!--别名机制--> <!-- <typeAliases>--> <!-- <typeAlias type="com.cn.entity.User" alias="user"/>--> <!-- <typeAlias type="com.cn.entity.Student" alias="student"></typeAlias>--> <!-- </typeAliases>--> <!-- 连接数据库 --> <!-- <environments default="mysql_development">--> <!-- <environment id="mysql_development">--> <!-- <transactionManager type="JDBC"/>--> <!-- <dataSource type="POOLED">--> <!-- <property name="driver" value="${driverClass}"/>--> <!-- <property name="url" value="${jdbcUrl}"/>--> <!-- <property name="username" value="xxx"/>--> <!-- <property name="password" value="xxx"/>--> <!-- </dataSource>--> <!-- </environment>--> <!-- 连接Oracle数据库 --> <!-- <environment id="oracle_development">--> <!-- <transactionManager type="JDBC"/>--> <!-- <dataSource type="POOLED">--> <!-- <property name="driver" value="oracle.jdbc.driver.OracleDriver"/>--> <!-- <property name="url" value="jdbc:oracle:thin:localhost:1521:orcl"/>--> <!-- <property name="username" value="ssm"/>--> <!-- <property name="password" value="${password}"/>--> <!-- </dataSource>--> <!-- </environment>--> <!-- </environments>--> <!-- 加载映射文件 --> <!-- <mappers>--> <!-- <mapper resource="com/cn/entity/mybatisUserMapper.xml"/>--> <!-- <mapper resource="com/cn/entity/mybatisUserMapper2.xml"/>--> <!-- <mapper resource="com/cn/entity/studentMapper.xml"/>--> <!-- <mapper resource="com/cn/entity2/cardMapper.xml"/>--> <!-- <mapper resource="com/cn/entity2/studentMapper1.xml"/>--> <!-- <mapper resource="com/cn/entity3/gradMapper.xml"/>--> <!-- <mapper resource="com/cn/entity3/studentsMapper.xml"/>--> <!-- </mappers>--> <!-- --> </configuration>
Beanmapper文件配置
<?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.cn.entity.User" > <!--一个resultmap相当与一张数据表与实体的设 当实体与数据库表字段不一直时需要配置--> <resultMap id="usermap" type="user"> <id property="id" column="id"></id> <result property="username" column="username"></result> <result property="sex" column="sex"></result> <result property="address" column="address"></result> </resultMap> <select id="findAll" resultMap="usermap"> select * from userInfor sql语句千万不能写分号;不然汇报 “无效字符错误” </select> </mapper>
Controller层
package com.cn.controller; import com.cn.dao.UserDao; import com.cn.entity.User; import com.cn.service.UserService; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.ResponseBody; import javax.servlet.http.HttpServletRequest; import java.util.List; @Controller @RequestMapping("/user") public class UserController { @Autowired private UserService userServiceImpl; @RequestMapping("/findAll") public @ResponseBody List<User> findAll(Model model, HttpServletRequest request) throws Exception{ System.out.println("hello ...我是spring和mybatis整合"); return userServiceImpl.findAll(); } }
Service层
@Service public class UserServiceImpl implements UserService { @Autowired private UserDao userDaoImpl; @Override public List<User> findAll() { return userDaoImpl.findAll(); } }
Dao层
package com.cn.dao;
import com.cn.entity.User;
import org.mybatis.spring.SqlSessionTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;
import java.util.List;
@Repository
public class UserDaoImpl implements UserDao {
@Autowired
private SqlSessionTemplate sqlSessionTemplate;
@Override
public List<User> findAll() {
System.out.println(sqlSessionTemplate);
List<User> users = sqlSessionTemplate.selectList("com.cn.entity.User.findAll");
return users;
}
}
jsp层
<%@ page contentType="text/html;charset=UTF-8" language="java" %> <html> <head> <title>$Title$</title> <script type="text/javascript" src="jquery-3.3.1.js"></script> </head> <body> <input id="fangwen" type="button" value="访问"/> </body> </html> <script type="text/javascript"> $(function () { $("#fangwen").click(function () { $.post("${pageContext.request.contextPath}/user/findAll.action",{},function (data,status,ajax) { alert(ajax.responseText); }); }); }); </script>
返回Json数据的格式:
[{"id":"1","username":"spring_mvc","sex":"男","address":"意大利"},{"id":"2","username":"mybatis_mvc","sex":"女","address":"俄罗斯"}]