Spring+myBatis3

1.数据库表创建

CREATE TABLE `name` (
`id` bigint(20) NOT NULL COMMENT '主键ID',
`name` bigint(20) DEFAULT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1   |

mysql> select * from name;
+----+------+
| id | name |
+----+------+
|  1 |    1 |
+----+------+

2.项目目录结构

3.编写 mybatis generator 插件需要的配置文件

该配置文件详解:http://blog.csdn.net/isea533/article/details/42102297

src/main/resources 下 ,创建 generatorConfig.xml文件

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE generatorConfiguration
PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"
"http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">

<generatorConfiguration>
<!-- 如果classpath没有jar,就需要指定 -->
<classPathEntry
location="/Users/baidu/Desktop/mysql-connector-java-5.1.38-bin.jar" />
<context id="my" targetRuntime="MyBatis3" defaultModelType="flat">
<commentGenerator>
<property name="suppressDate" value="true" />
<property name="suppressAllComments" value="true" />
</commentGenerator>

<jdbcConnection driverClass="com.mysql.jdbc.Driver"
connectionURL="jdbc:mysql://localhost:3306/test" userId="" password="" />

<!-- 实体类 targetProject=工程名/包路径 -->
<javaModelGenerator targetPackage="com.baidu.test.entry"
targetProject="mybatisdemo/src/main/java">
<property name="enableSubPackages" value="true" />
<property name="trimStrings" value="true" />
</javaModelGenerator>

<!-- sql mappper.xml -->
<sqlMapGenerator targetPackage="com.baidu.test.dao"
targetProject="mybatisdemo/src/main/resources">
<property name="enableSubPackages" value="true" />
</sqlMapGenerator>

<!-- sql mapper.java -->
<javaClientGenerator targetPackage="com.baidu.test.dao"
targetProject="mybatisdemo/src/main/java" type="XMLMAPPER">
<property name="enableSubPackages" value="true" />
</javaClientGenerator>

<!-- 逆向工程的表名称 %通配符全部表 -->
<table tableName="name"
enableCountByExample="false" enableUpdateByExample="false"
enableDeleteByExample="false" enableSelectByExample="false"
selectByExampleQueryId="false">
</table>

</context>
</generatorConfiguration>

4.运行插件,生成对应的 javabean,dao,mapper.xml文件

5.pom.xml引用需要的配置信息.

<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/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion>
<groupId>com.baidu.lbc</groupId>
<artifactId>mybatisdemo</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>mybatisdemo Maven Webapp</name>
<url>http://maven.apache.org</url>
<properties>
<!-- spring版本号 -->
<spring.version>3.2.4.RELEASE</spring.version>
<!-- mybatis版本号 -->
<mybatis.version>3.2.4</mybatis.version>
<!-- log4j日志文件管理包版本 -->
<slf4j.version>1.6.6</slf4j.version>
<log4j.version>1.2.9</log4j.version>
</properties>
<dependencies>
<!-- spring核心包 -->
<!-- springframe start -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</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-oxm</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-jdbc</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-aop</artifactId>
<version>${spring.version}</version>
</dependency>

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

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

<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- springframe end -->

<!-- mybatis核心包 -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>${mybatis.version}</version>
</dependency>
<!-- mybatis/spring包 -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.2.2</version>
</dependency>
<!-- mysql驱动包 -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.29</version>
</dependency>
<!-- junit测试包 -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
<!-- 阿里巴巴数据源包 -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.0.2</version>
</dependency>

<!-- json数据 -->
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-mapper-asl</artifactId>
<version>1.9.13</version>
</dependency>

<!-- 日志文件管理包 -->
<!-- log start -->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>${log4j.version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>${slf4j.version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>${slf4j.version}</version>
</dependency>
<!-- log end -->
</dependencies>
<build>
<finalName>spring4-mybatis3</finalName>
</build>
</project>

6. 将jdbc连接信息写成properties文件

src/main/resource/dbconfig.properties

jdbc_driverClassName=com.mysql.jdbc.Driver
jdbc_url=jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=UTF-8&zeroDateTimeBehavior=convertToNull
jdbc_username=
jdbc_password=

7.编写spring配置文件

src/main/resource/spring.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"
xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd" default-autowire="byName">
<!-- 引入dbconfig.properties属性文件 -->
<context:property-placeholder location="classpath:dbconfig.properties" />
<!-- 自动扫描(自动注入)，扫描me.gacl.service这个包以及它的子包的所有使用@Service注解标注的类 -->
<context:component-scan base-package="com.baidu.test.service" />
</beans>

8. spring和mybatis连接配置

src/main/resource/spring-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:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:util="http://www.springframework.org/schema/util"
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/util http://www.springframework.org/schema/util/spring-util-3.2.xsd"> 
<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource"
init-method="init" destroy-method="close">
<property name="driverClassName">
<value>${jdbc_driverClassName}</value>
</property>
<property name="url">
<value>${jdbc_url}</value>
</property>
<property name="username">
<value>${jdbc_username}</value>
</property>
<property name="password">
<value>${jdbc_password}</value>
</property>
<!-- 连接池最大使用连接数 -->
<property name="maxActive">
<value>20</value>
</property>
<!-- 初始化连接大小 -->
<property name="initialSize">
<value>1</value>
</property>
<!-- 获取连接最大等待时间 -->
<property name="maxWait">
<value>60000</value>
</property>
<!-- 连接池最大空闲 -->
<property name="maxIdle">
<value>20</value>
</property>
<!-- 连接池最小空闲 -->
<property name="minIdle">
<value>3</value>
</property>
<!-- 自动清除无用连接 -->
<property name="removeAbandoned">
<value>true</value>
</property>
<!-- 清除无用连接的等待时间 -->
<property name="removeAbandonedTimeout">
<value>180</value>
</property>
<!-- 连接属性 -->
<property name="connectionProperties">
<value>clientEncoding=UTF-8</value>
</property>
</bean>

<!-- mybatis文件配置，扫描所有mapper文件 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"
p:dataSource-ref="dataSource" p:configLocation="classpath:mybatis-config.xml"
p:mapperLocations="classpath:com.baidu.test.dao.*.xml" />
<!-- spring与mybatis整合配置，扫描所有dao -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"
p:basePackage="com.baidu.test.dao" p:sqlSessionFactoryBeanName="sqlSessionFactory" />

<!-- 对数据源进行事务管理 -->
<bean id="transactionManager"
class="org.springframework.jdbc.datasource.DataSourceTransactionManager"
p:dataSource-ref="dataSource" />
</beans>

9. 编写service层代码,@Service注解注到impl上.使用@Autowired注入dao层接口.

10.mybatis基本配置

src/main/resource/mybaits-config.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>
<!-- 命名空间 -->
<typeAliases>
<typeAlias alias="Name" type="com.baidu.test.entry.Name" />
</typeAliases>

<!-- 映射map -->
<mappers>
</mappers>
</configuration>

11.junit

package mybatisdemo;

import org.junit.Before;
import org.junit.Test;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.baidu.test.entry.Name;
import com.baidu.test.service.Record;
import com.baidu.test.service.impl.RecordImpl;

public class RecordTesrt {

private Record record;

@Before
public void before() {
ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(
new String[] { "classpath:spring.xml", "spring-mybatis.xml" });
record = (RecordImpl) context.getBean("recordImpl");
}

@Test
public void testRecordImpl() {
Name name = new Name();
name.setId(2L);
name.setName(1L);
record.insertName(name);
}
}

12.不出意外,应该绿了才对

数据库应该也有数据了