Mybatis与spring集成

目录

第一步：导入pom依赖

 1.1 添加spring相关依赖(5.0.2.RELEASE)

   1.2 添加mybatis相关依赖

   1.3 spring整合mybatis(1.3.1)

   1.4 添加dbcp2连接池

   1.5 添加日志配置(2.9.1)

   1.6 其他

1.7 mysql和-pagehelper分页jar依赖

 第二步：利用mybatis逆向工程生成模型层层代码

 第三步：编写配置文件applicationContext-mybatis.xml

第四步：编写测试（Spring Test+junit整合）

1.新建一个java类并且加入注解

---

第一步：导入pom依赖

 1.1 添加spring相关依赖(5.0.2.RELEASE)

       spring-core
       spring-beans
       spring-context
       spring-orm
       spring-tx
       spring-aspects
       spring-web

   1.2 添加mybatis相关依赖

       mybatis核心：mybatis(3.4.5)
       Mybatis分页：pagehelper(5.1.2)

   1.3 spring整合mybatis(1.3.1)

       mybatis-spring

   1.4 添加dbcp2连接池

       commons-dbcp2(2.1.1)
       commons-pool2(2.4.3)

   1.5 添加日志配置(2.9.1)

       log4j-core
       log4j-api
       log4j-web

   1.6 其他

       junit(4.12)
       javax.servlet-api(4.0.0)

1.7 mysql和-pagehelper分页jar依赖

        mysql(5.1.44)
       pagehelper（5.1.2

注：顺序可以随便写

<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>1.8</maven.compiler.source>
    <maven.compiler.target>1.8</maven.compiler.target>
    <maven.compiler.plugin.version>3.7.0</maven.compiler.plugin.version>
 
    <!--添加jar包依赖-->
    <!--1.spring 5.0.2.RELEASE相关-->
    <spring.version>5.0.2.RELEASE</spring.version>
    <!--2.mybatis相关-->
    <mybatis.version>3.4.5</mybatis.version>
    <!--mysql-->
    <mysql.version>5.1.44</mysql.version>
    <!--pagehelper分页jar依赖-->
    <pagehelper.version>5.1.2</pagehelper.version>
    <!--mybatis与spring集成jar依赖-->
    <mybatis.spring.version>1.3.1</mybatis.spring.version>
    <!--3.dbcp2连接池相关 druid-->
    <commons.dbcp2.version>2.1.1</commons.dbcp2.version>
    <commons.pool2.version>2.4.3</commons.pool2.version>
    <!--4.log日志相关-->
    <log4j2.version>2.9.1</log4j2.version>
    <!--5.其他-->
    <junit.version>4.12</junit.version>
    <servlet.version>4.0.0</servlet.version>
    <lombok.version>1.18.2</lombok.version>
</properties>
 
 
<dependencies>
    <!--1.spring相关-->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-orm</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-tx</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-aspects</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-web</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-test</artifactId>
        <version>${spring.version}</version>
    </dependency>
 
    <!--2.mybatis相关-->
    <dependency>
        <groupId>org.mybatis</groupId>
        <artifactId>mybatis</artifactId>
        <version>${mybatis.version}</version>
    </dependency>
    <!--mysql-->
    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>${mysql.version}</version>
    </dependency>
    <!--pagehelper分页插件jar包依赖-->
    <dependency>
        <groupId>com.github.pagehelper</groupId>
        <artifactId>pagehelper</artifactId>
        <version>${pagehelper.version}</version>
    </dependency>
    <!--mybatis与spring集成jar包依赖-->
    <dependency>
        <groupId>org.mybatis</groupId>
        <artifactId>mybatis-spring</artifactId>
        <version>${mybatis.spring.version}</version>
    </dependency>
 
    <!--3.dbcp2连接池相关-->
    <dependency>
        <groupId>org.apache.commons</groupId>
        <artifactId>commons-dbcp2</artifactId>
        <version>${commons.dbcp2.version}</version>
    </dependency>
    <dependency>
        <groupId>org.apache.commons</groupId>
        <artifactId>commons-pool2</artifactId>
        <version>${commons.pool2.version}</version>
    </dependency>
 
    <!--4.log日志相关依赖-->
    <!--核心log4j2jar包-->
    <dependency>
        <groupId>org.apache.logging.log4j</groupId>
        <artifactId>log4j-core</artifactId>
        <version>${log4j2.version}</version>
    </dependency>
    <dependency>
        <groupId>org.apache.logging.log4j</groupId>
        <artifactId>log4j-api</artifactId>
        <version>${log4j2.version}</version>
    </dependency>
    <!--web工程需要包含log4j-web，非web工程不需要-->
    <dependency>
        <groupId>org.apache.logging.log4j</groupId>
        <artifactId>log4j-web</artifactId>
        <version>${log4j2.version}</version>
    </dependency>
 
    <!--5.其他-->
    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>${junit.version}</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>javax.servlet-api</artifactId>
        <version>${servlet.version}</version>
        <scope>provided</scope>
    </dependency>
    <dependency>
        <groupId>org.projectlombok</groupId>
        <artifactId>lombok</artifactId>
        <version>${lombok.version}</version>
        <scope>provided</scope>
    </dependency>
 
</dependencies>
 
 
<resources>
    <!--解决mybatis-generator-maven-plugin运行时没有将XxxMapper.xml文件放入target文件夹的问题-->
    <resource>
        <directory>src/main/java</directory>
        <includes>
            <include>**/*.xml</include>
        </includes>
    </resource>
    <!--解决mybatis-generator-maven-plugin运行时没有将jdbc.properites文件放入target文件夹的问题-->
    <resource>
        <directory>src/main/resources</directory>
        <includes>
            <include>jdbc.properties</include>
            <include>*.xml</include>
        </includes>
    </resource>
</resources>
 
 
<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-compiler-plugin</artifactId>
    <version>${maven.compiler.plugin.version}</version>
    <configuration>
        <source>${maven.compiler.source}</source>
        <target>${maven.compiler.target}</target>
        <encoding>${project.build.sourceEncoding}</encoding>
    </configuration>
</plugin>
<plugin>
    <groupId>org.mybatis.generator</groupId>
    <artifactId>mybatis-generator-maven-plugin</artifactId>
    <version>1.3.2</version>
    <dependencies>
        <!--使用Mybatis-generator插件不能使用太高版本的mysql驱动 -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>${mysql.version}</version>
        </dependency>
    </dependencies>
    <configuration>
        <overwrite>true</overwrite>
    </configuration>
</plugin>

 

 第二步：利用mybatis逆向工程生成模型层层代码

 第三步：编写配置文件applicationContext-mybatis.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: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.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd">
    <!--1. 注解式开发 -->
    <!-- 注解驱动 -->
    <context:annotation-config/>
    <!-- 用注解方式注入bean，并指定查找范围：com.javaxl.ssm及子子孙孙包-->
    <context:component-scan base-package="com.lj"/>
 
<!--    <context:property-placeholder location="classpath:jdbc.properties"/>-->
 
    <bean id="dataSource" class="org.apache.commons.dbcp2.BasicDataSource"
          destroy-method="close">
        <property name="driverClassName" value="${jdbc.driver}"/>
        <property name="url" value="${jdbc.url}"/>
        <property name="username" value="${jdbc.username}"/>
        <property name="password" value="${jdbc.password}"/>
        <!--初始连接数-->
        <property name="initialSize" value="10"/>
        <!--最大活动连接数-->
        <property name="maxTotal" value="100"/>
        <!--最大空闲连接数-->
        <property name="maxIdle" value="50"/>
        <!--最小空闲连接数-->
        <property name="minIdle" value="10"/>
        <!--设置为-1时，如果没有可用连接，连接池会一直无限期等待，直到获取到连接为止。-->
        <!--如果设置为N（毫秒），则连接池会等待N毫秒，等待不到，则抛出异常-->
        <property name="maxWaitMillis" value="-1"/>
    </bean>
 
    <!--4. spring和MyBatis整合 -->
    <!--1) 创建sqlSessionFactory-->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <!-- 指定数据源 -->
        <property name="dataSource" ref="dataSource"/>
        <!-- 自动扫描XxxMapping.xml文件，**任意路径 -->
        <property name="mapperLocations" value="classpath*:com/lj/**/mapper/*.xml"/>
        <!-- 指定别名 -->
<!--        <property name="typeAliasesPackage" value="com/lj/**/model"/>-->
        <!--设置mybaits对缓存的支持-->
        <property name="configurationProperties">
            <props>
                <!-- 全局映射器启用缓存 *主要将此属性设置完成即可-->
                <prop key="cacheEnabled">true</prop>
                <!-- 查询时，关闭关联对象即时加载以提高性能 -->
                <prop key="lazyLoadingEnabled">false</prop>
                <!-- 设置关联对象加载的形态，此处为按需加载字段(加载字段由SQL指 定)，不会加载关联表的所有字段，以提高性能 -->
                <prop key="aggressiveLazyLoading">true</prop>
            </props>
        </property>
 
        <!--配置pagehelper插件-->
        <property name="plugins">
            <array>
                <bean class="com.github.pagehelper.PageInterceptor">
                    <property name="properties">
                        <value>
                            helperDialect=mysql
                        </value>
                    </property>
                </bean>
            </array>
        </property>
    </bean>
 
    <!--2) 自动扫描com/javaxl/ssm/**/mapper下的所有XxxMapper接口(其实就是DAO接口)，并实现这些接口，-->
    <!--   即可直接在程序中使用dao接口，不用再获取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。-->
        <!--你可以使用分号或逗号 作为分隔符设置多于一个的包路径-->
        <property name="basePackage" value="com/lj/**/mapper"/>
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
    </bean>
 
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource" />
    </bean>
    <tx:annotation-driven transaction-manager="transactionManager" />
    <aop:aspectj-autoproxy/>
</beans>
 

第四步：编写测试（Spring Test+junit整合）

1.新建一个java类并且加入注解

 
@RunWith(SpringJUnit4ClassRunner.class)
 
@ContextConfiguration(locations={"classpath:applicationContext.xml"})
 
@Autowired

@Autowired：是可以让spring完成自动装配的用途
@RunWith(SpringJUnit4ClassRunner.class)：用于指定junit运行环境，是junit提供给其他框架测试环境接口扩展，为了便于使用spring的依赖注入
@ContextConfiguration(locations={"classpath:applicationContext-mybatis.xml"})：可以用classes来直接导入同包下写的配置类。或者导入配置文件。
2.测试类

package impl;
 
import com.lj.mapper.BookMapper;
import com.lj.model.Book;
import com.lj.model.BookVo;
import com.lj.service.BookService;
import com.lj.service.impl.BookServiceImpl;
import com.lj.util.PageBean;
import com.lj.util.SessionUtil;
import org.apache.ibatis.session.SqlSession;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
 
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
 
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations={"classpath:applicationContext.xml"})
public class BookServiceImplTest2 {
    @Autowired
    private BookService bookService;
 
    @Before
    public void setUp() throws Exception {
    }
 
    @After
    public void tearDown() throws Exception {
    }
 
    @Test
    public void deleteByPrimaryKey() {
        System.out.println("业务方法删除。。。。");
        this.bookService.deleteByPrimaryKey(65);
    }
 
    @Test
    public void selectBooksIn() {
        System.out.println("mybatis中的foreach标签。。。。");
        List<Book> books = this.bookService.selectBooksIn(Arrays.asList(new Integer[]{66, 67, 68}));
        books.forEach(System.out::println);
    }
//模糊查询
    @Test
    public void selectBooksLike1() {
        System.out.println("mybatis中模糊查询#与$的区别。。。。#");
        List<Book> books = this.bookService.selectBooksLike1("%圣墟%");
        books.forEach(System.out::println);
    }
 
    @Test
    public void selectBooksLike2() {
        System.out.println("mybatis中模糊查询#与$的区别。。。。$");
        List<Book> books = this.bookService.selectBooksLike2("%圣墟%");
        books.forEach(System.out::println);
    }

    @Test
    public void ehcacheMany() {
        List<Book> books = this.bookService.selectBooksLike1("%圣墟%");
        books.forEach(System.out::println);
 
        books = this.bookService.selectBooksLike1("%圣墟%");
        books.forEach(System.out::println);
    }
}