mybatis整合spring

POJO:

package com.zking.pojo;

public class City {

    //城市id
    private String cid;
    //城市名字
    private String cname;
    //省份id
    private String pid;

    //无参方法
    public City() {
    }
//有参方法
    public City(String cid, String cname, String pid) {
        this.cid = cid;
        this.cname = cname;
        this.pid = pid;
    }

    //setget方法

    public String getCid() {
        return cid;
    }

    public void setCid(String cid) {
        this.cid = cid;
    }

    public String getCname() {
        return cname;
    }

    public void setCname(String cname) {
        this.cname = cname;
    }

    public String getPid() {
        return pid;
    }

    public void setPid(String pid) {
        this.pid = pid;
    }
}

MAPPER:

package com.zking.mapper;

import com.zking.pojo.City;
import org.springframework.stereotype.Repository;

import java.util.List;
@Repository
public interface ICityMapper {
//查询所有
    public List<City> findAll();
//增加
    public int AddCity(City c);
//修改
    public int UpdateCity(City c);
//删除
    public int DeleteCity(City c);
}









<?xml version="1.0" encoding="utf-8" ?>
<!--引用mybatisDTD文件-->
<!DOCTYPE mapper
        PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.zking.mapper.ICityMapper">
    <!--查询方法-->
    <select id="findAll" resultType="City">
        select * from city
    </select>
    <!--新增方法-->
    <insert id="AddCity" parameterType="City">
        INSERT  into city() VALUE uuid(),#{cname},#{pid}
    </insert>
    <!--修改方法-->
    <update id="UpdateCity" parameterType="City">
        UPDATE city
        <set>
            <if test="cname!=null">
                cname=#{cname}
            </if>
            <if test="pid!=null">
                pid=#{pid}
            </if>
        </set>
        where cid=#{cid}
    </update>
    <!--删除方法-->
    <delete id="DeleteCity" parameterType="City">
        delete from  city where cid=#{cid}
    </delete>
</mapper>

SERVICE:

package com.zking.service;

import com.zking.pojo.City;

import java.util.List;

public interface ICityService {

    //查询所有
    public List<City> findAll();
    //增加
    public int AddCity(City c);
    //修改
    public int UpdateCity(City c);
    //删除
    public int DeleteCity(City c);
}










package com.zking.service.impl;

import com.zking.mapper.ICityMapper;
import com.zking.pojo.City;
import com.zking.service.ICityService;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;
import java.util.List;

@Service("CityServiceimpl")
public class CityServiceimpl implements ICityService {
    @Resource(name = "ICityMapper")
    private ICityMapper iCityMapper;
    @Override
    public List<City> findAll() {
        return iCityMapper.findAll();
    }

    @Override
    public int AddCity(City c) {
        return iCityMapper.AddCity(c);
    }

    @Override
    public int UpdateCity(City c) {
        return iCityMapper.UpdateCity(c)
                ;
    }

    @Override
    public int DeleteCity(City c) {
        return iCityMapper.DeleteCity(c);
    }
}

RESOURCES:

<?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:aop="http://www.springframework.org/schema/aop"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:util="http://www.springframework.org/schema/util"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-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/context http://www.springframework.org/schema/context/spring-context-4.3.xsd
		http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.3.xsd
		http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.3.xsd">

    <!--1.打开注解-->
    <context:annotation-config></context:annotation-config>
    <!--2.注解注入bean对象（是spring bean对象  不是javabean对象）-->
    <context:component-scan base-package="com.zking"></context:component-scan>
    <!--3.配置数据库连接池对象-->
    <bean id="ds" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
        <property name="username" value="root"></property>
        <property name="password" value="sasa"></property>
        <property name="url" value="jdbc:mysql://localhost:3306/zx?characterEncoding=UTF-8"></property>
        <property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
    </bean>
    <!--4.配置sqlsession工厂-->
    <bean id="SqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <!--配置数据源-->
        <property name="dataSource" ref="ds"></property>
        <!--配置mybatis核心文件-->
        <property name="configLocation" value="classpath:mybatis-config.xml"></property>
        <!--自动扫描**mapper.xml文件-->
        <!--mybatis的注解开发下面两行可以移除（不然会报错）-->
        <property name="mapperLocations" value="classpath:com/zking/**/mapper/*.xml"></property>
        <!--指定别名-->
        <property name="typeAliasesPackage" value="com/zking/pojo"></property>
    </bean>
    <!--5.自动扫描接口
    可以直接在程序中使用dao接口，不用在获取sqlsession对象-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <!--basePackage属性是映射器接口文件的包路径-->
        <property name="basePackage" value="com/zking/**/mapper"></property>

        <property name="sqlSessionFactoryBeanName" value="SqlSessionFactory"></property>
    </bean>
    <!--6.打开注解事务管理-->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="ds"></property>
    </bean>
    <!--7.开启注解事务-->
  <tx:annotation-driven transaction-manager="transactionManager"></tx:annotation-driven>

</beans>











<?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>
        <setting name="logImpl" value="LOG4J"/>
    </settings>
</configuration>

JAR包：

    <!-- 引入mysql依赖 -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.44</version>
        </dependency>
        <!-- 引入spring-contest依赖-->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>4.3.10.RELEASE</version>
        </dependency>

        <!-- 引入spring-jdbc依赖-->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>4.3.10.RELEASE</version>
        </dependency>
        <!-- 引入mybatis依赖-->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.4.5</version>
        </dependency>

        <!-- 引入mybatis-spring依赖-->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>1.3.0</version>
        </dependency>
        <!-- 引入log4j依赖-->
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.12</version>
        </dependency>