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spring + mybatis 整合
1.先说说依赖类库
<dependencies> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>1.1.1</version> </dependency> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>3.1.1</version> </dependency> <dependency> <groupId>commons-dbcp</groupId> <artifactId>commons-dbcp</artifactId> <version>1.4</version> </dependency> <dependency> <groupId>commons-logging</groupId> <artifactId>commons-logging</artifactId> <version>1.1.1</version> </dependency> <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-context</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-jdbc</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-expression</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>${spring-version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>${spring-version}</version> </dependency> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>1.2.17</version> </dependency> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>3.8.1</version> </dependency> </dependencies>
maven 3.x profiles配置
<profiles>
<profile>
<id>dev</id>
<properties>
<spring-version>3.1.1.RELEASE</spring-version>
</properties>
</profile>
<profile>
<id>pro</id>
<properties>
<spring-version>3.1.1.RELEASE</spring-version>
</properties>
</profile>
</profiles>
这里特别注意spring的版本,保持项目中spring版本的一致,否则会出现spring容器初始化失败等问题。
2.重要的一些配置
2.1这里主要配置sqlSession和事物管理器,通过sqlSession可以直接操作数据库。
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="mapperLocations" value="classpath*:/sqlMaps/*.xml"/> <property name="dataSource" ref="dataSource"/> </bean> <bean id="sqlSession" class="org.mybatis.spring.SqlSessionTemplate"> <constructor-arg index="0" ref="sqlSessionFactory" /> </bean> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource" /> </bean>
2.2 另一种方式,通过mybatis中提供的
SqlSessionDaoSupport,这里需要注入sqlSessionFactory,其他DAO对象只要继承或包含baseDao即可。
<bean id="baseDao" class="net.idalang.dao.impl.BaseDao"> <property name="sqlSessionFactory" ref="sqlSessionFactory" /> </bean>
2.3 另外,对于一些数据操作逻辑不是很复杂的数据操作,直接使用mybatis-generator即可生成基本增删改查方法,提高效率。
2.3.1 引入插件
<plugin> <groupId>org.mybatis.generator</groupId> <artifactId>mybatis-generator-maven-plugin</artifactId> <version>1.3.2</version> <configuration> <verbose>true</verbose> <overwrite>true</overwrite> </configuration> </plugin>
2.3.2 简单配置
在classpath下创建generatorConfig.xml,关键配置:数据库驱动的位置,数据库连接的相关配置,对那些表进行table--》object,其他一些转换约定,如表前缀,对象命名等。
以下为sqlite数据库的一个简单配置:
<?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> <classPathEntry location="your_maven_repo_path\org\xerial\sqlite-jdbc\3.7.15-M1\sqlite-jdbc-3.7.15-M1.jar"/> <context id="MysqlTables" targetRuntime="MyBatis3"> <commentGenerator> <property name="suppressAllComments" value="true" /> </commentGenerator> <jdbcConnection driverClass="org.sqlite.JDBC" connectionURL="jdbc:sqlite:your_DB_PATH" userId="id" password="pwd"> </jdbcConnection> <javaTypeResolver> <property name="forceBigDecimals" value="false"/> </javaTypeResolver> <javaModelGenerator targetPackage="your_model_target_packages" targetProject="src\main\java"> <property name="enableSubPackages" value="true"/> <property name="trimStrings" value="true"/> </javaModelGenerator> <sqlMapGenerator targetPackage="sqlMaps" targetProject="src\main\resources"> <property name="enableSubPackages" value="true"/> </sqlMapGenerator> <javaClientGenerator type="XMLMAPPER" targetPackage="your_mapper_target_package" targetProject="src\main\java"> <property name="enableSubPackages" value="true"/> </javaClientGenerator> <table schema="idalang" tableName="news" domainObjectName="News" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"> <property name="useActualColumnNames" value="true"/> </table> </context></generatorConfiguration>
参考资源:
1.这一个连接可以解决相关的所有问题
http://mybatis.github.io/spring/zh/
spring + mybatis 整合
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