spring整合mybatis（非代理方式）【我】

首先创建要给 maven 的war项目

不用代理的方式：

如果不适用Mapper代理的方式，配置就非常简单：

首先是pom文件（以下配置文件包含其他多余内容，仅供参考）：

<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>4.0.0</modelVersion>
  <groupId>com.my</groupId>
  <artifactId>test-mybatis-war</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <packaging>war</packaging>
<properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <spring.version>4.3.0.RELEASE</spring.version>
    </properties>

    <dependencies>

        <!-- Spring -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-beans</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aspects</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <!--Spring java数据库访问包，在本例中主要用于提供数据源 -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <!-- servlet -->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>servlet-api</artifactId>
            <scope>provided</scope>
            <version>2.5</version>
        </dependency>

        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jsp-api</artifactId>
            <scope>provided</scope>
            <version>2.0</version>
        </dependency>

        <!-- jstl -->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>

        <!-- Redis客户端 -->
        <dependency>
            <groupId>redis.clients</groupId>
            <artifactId>jedis</artifactId>
            <version>2.7.2</version>
        </dependency>

        <!-- redisson -->
         <dependency>
            <groupId>org.redisson</groupId>
            <artifactId>redisson</artifactId>
            <version>3.8.1</version>
        </dependency>

        <!-- junit -->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.mockito</groupId>
            <artifactId>mockito-core</artifactId>
            <version>2.7.7</version>
        </dependency>

         <!--mybatis-spring适配器 -->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>1.3.0</version>
        </dependency>

        <!-- mybatis ORM框架 -->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.4.1</version>
        </dependency>

        <!--mysql数据库驱动 -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.38</version>
        </dependency>

           <!-- 连接池 -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.0.9</version>
        </dependency>

        <!--log4j日志包 -->
        <dependency>
            <groupId>org.apache.logging.log4j</groupId>
            <artifactId>log4j-core</artifactId>
            <version>2.6.1</version>
        </dependency>

        <!-- poi -->
        <dependency>
            <groupId>org.apache.poi</groupId>
            <artifactId>poi</artifactId>
            <version>3.8</version>
        </dependency>
        <dependency>
            <groupId>org.apache.poi</groupId>
            <artifactId>poi-ooxml</artifactId>
            <version>3.8</version>
        </dependency>

    </dependencies>

</project>

然后是项目结构：

主要就是红框中的部分，

配置文件：

首先数据库的 db.properties:

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/test1?characterEncoding=utf-8
jdbc.username=root
jdbc.password=123

然后是mybatis的核心配置文件 SqlMapConfig.xml ：

<?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="STDOUT_LOGGING" />
    </settings>

        <!-- 配置分页插件 -->
<!--     <plugins>
        <plugin interceptor="com.github.pagehelper.PageHelper">
            设置数据库类型 Oracle,Mysql,MariaDB,SQLite,Hsqldb,PostgreSQL六种数据库
            <property name="dialect" value="mysql"/>
        </plugin>
    </plugins> -->
</configuration>

因为使用spring整合，所以，其非常简单，基本是空的，但是要有。

然后是 spring的配置文件：

1、核心dao文件 applicationContext-dao.xml ：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
    xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
    http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
    http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
    http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">

    <!-- 加载配置文件 -->
    <context:property-placeholder location="classpath:resource/*.properties" />

    <!-- 引入其他xml -->
    <import resource="classpath:spring/applicationContext-service.xml"/>

    <!-- 数据库连接池 -->
    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource"
        destroy-method="close">
        <property name="url" value="${jdbc.url}" />
        <property name="username" value="${jdbc.username}" />
        <property name="password" value="${jdbc.password}" />
        <property name="driverClassName" value="${jdbc.driver}" />
        <property name="maxActive" value="10" />
        <property name="minIdle" value="5" />
    </bean>

    <!-- 配置sqlsessionFactory -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="configLocation" value="classpath:mybatis/SqlMapConfig.xml"></property>
        <property name="dataSource" ref="dataSource"></property>

        <!-- sql映射文件路径（是否用代理方式都可以在这配置xml文件路径） -->
<!--         <property name="mapperLocations" value="classpath*:com/zhangguo/bookstore/mapper/*Mapper.xml"></property> -->
        <property name="mapperLocations" value="classpath*:mybatis/mapper/*.xml"></property>
    </bean>

</beans>

可见，如果不适用代理，非常简单，只需要配置  数据源、mybatis的sql工厂，mybatis使用sql的xml文件路径即可。

2、service的扫描包配置文件：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
    xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
    http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
    http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
    http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">

    <!-- 扫描包 加载 service实现类 -->
    <!-- <context:component-scan base-package="com.taotao.service"> -->
    <context:component-scan base-package="mybatis.service">
        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>
</beans>

最后就是代码了：

先看 xml 文件： T1.xml

<?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">
<!-- 这个xml是非代理方式使用的（且入参出参都不用pojo） -->

<mapper namespace="T1">
 <!--      查询已处理的客户数 -->
    <select id="getBookById" parameterType="java.util.HashMap" resultType="java.util.Map">
          SELECT * FROM books WHERE id =  #{id};
     </select>

</mapper>

超简单，里面不用任何 pojo，入参出参都可以用map。

java代码：

定义一个公共的父 service ： ParentService

package mybatis.service;

import java.util.List;

import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.springframework.beans.factory.annotation.Autowired;

public abstract class ParentService {

    @Autowired
    private SqlSessionFactory sqlSessionFactory;

    protected <T> T selectOne(String statement,Object parameter) {
        SqlSession session = sqlSessionFactory.openSession();
        return session.selectOne(statement, parameter);
    }

    protected <E> List<E> selectList(String statement,Object parameter) {
        return sqlSessionFactory.openSession().selectList(statement, parameter);
    }

}

业务service ：  T1Service

package mybatis.service;

import java.util.HashMap;
import java.util.Map;

import org.springframework.stereotype.Service;

@Service
public class T1Service extends ParentService{

    public void getBookById() {
        HashMap<String, Object> param = new HashMap<String, Object>();
        param.put("id", 1);
        Map reult = this.selectOne("T1.getBookById", param);
        System.out.println(reult);

    }
}

测试类： Test

package mybatis.service;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class Test {

    public static void main(String[] args) {
         ApplicationContext ctx=new ClassPathXmlApplicationContext("classpath:spring/applicationContext-dao.xml");

         //非代理的方式
         T1Service  t1Service =ctx.getBean(T1Service.class);
         t1Service.getBookById();
    }
}