Spring boot怎么整合Mybatis

# Server settings server:  port:8080  address:localhost # DATASOURCE jdbc:  driverClass: com.mysql.jdbc.Driver  url: jdbc:mysql://127.0.0.1:3306/local-kaishustory?useUnicode=true&characterEncoding=utf-8  username: root  password: root # SPRING PROFILES spring:    # HTTP ENCODING  http:   encoding.charset: UTF-8   encoding.enable: true   encoding.force: true # WeiXin Configuration weixin:  mp:   appid: xx   secret: ee   token: weixin   aeskey: # MyBatis mybatis:  typeAliasesPackage: com.modou.**.domain  mapperLocations: classpath:/com/modou/**/mapper/*.xml  configLocation: classpath:/mybatis-config.xml # LOGGING logging:  level:   com.ibatis:DEBUG 

package com.modou.conf.mybatis; import java.util.ArrayList; import java.util.List; import javax.sql.DataSource; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.boot.bind.RelaxedPropertyResolver; import org.springframework.context.EnvironmentAware; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import org.springframework.context.annotation.Primary; import org.springframework.core.env.Environment; import org.springframework.transaction.annotation.EnableTransactionManagement; import com.alibaba.druid.pool.DruidDataSource; @Configuration @EnableTransactionManagement public class DataBaseConfiguration implements EnvironmentAware {  private RelaxedPropertyResolver propertyResolver;  private static Logger log = LoggerFactory.getLogger(DataBaseConfiguration.class);  @Override  public void setEnvironment(Environment env) {   this.propertyResolver = new RelaxedPropertyResolver(env, "jdbc.");  }  @Bean(name="writeDataSource", destroyMethod = "close", initMethod="init")  @Primary  public DataSource writeDataSource() {   log.debug("Configruing Write DataSource");   DruidDataSource datasource = new DruidDataSource();   datasource.setUrl(propertyResolver.getProperty("url"));   datasource.setDriverClassName(propertyResolver.getProperty("driverClassName"));   datasource.setUsername(propertyResolver.getProperty("username"));   datasource.setPassword(propertyResolver.getProperty("password"));   return datasource;  }  @Bean(name="readOneDataSource", destroyMethod = "close", initMethod="init")  public DataSource readOneDataSource() {   log.debug("Configruing Read One DataSource");   DruidDataSource datasource = new DruidDataSource();   datasource.setUrl(propertyResolver.getProperty("url"));   datasource.setDriverClassName(propertyResolver.getProperty("driverClassName"));   datasource.setUsername(propertyResolver.getProperty("username"));   datasource.setPassword(propertyResolver.getProperty("password"));   return datasource;  }  @Bean(name="readTowDataSource", destroyMethod = "close", initMethod="init")  public DataSource readTowDataSource() {   log.debug("Configruing Read Two DataSource");   DruidDataSource datasource = new DruidDataSource();   datasource.setUrl(propertyResolver.getProperty("url"));   datasource.setDriverClassName(propertyResolver.getProperty("driverClassName"));   datasource.setUsername(propertyResolver.getProperty("username"));   datasource.setPassword(propertyResolver.getProperty("password"));   return datasource;  }  @Bean(name="readDataSources")  public List<DataSource> readDataSources(){   List<DataSource> dataSources = new ArrayList<DataSource>();   dataSources.add(readOneDataSource());   dataSources.add(readTowDataSource());   return dataSources;  } } 

package com.modou.conf.mybatis; import java.util.List; import javax.annotation.Resource; import javax.persistence.EntityManager; import javax.sql.DataSource; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.apache.ibatis.session.SqlSessionFactory; import org.mybatis.spring.SqlSessionFactoryBean; import org.mybatis.spring.annotation.MapperScan; import org.mybatis.spring.plugin.rw.RoundRobinRWRoutingDataSourceProxy; import org.springframework.boot.autoconfigure.AutoConfigureAfter; import org.springframework.boot.autoconfigure.condition.ConditionalOnClass; import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean; import org.springframework.boot.bind.RelaxedPropertyResolver; import org.springframework.context.EnvironmentAware; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import org.springframework.core.env.Environment; import org.springframework.core.io.DefaultResourceLoader; import org.springframework.core.io.support.PathMatchingResourcePatternResolver; import org.springframework.jdbc.datasource.DataSourceTransactionManager; import org.springframework.transaction.annotation.EnableTransactionManagement; /**  *  * 获取第二个数据库的连接信息，在application.yml中配置，并指定特定的前缀  *  */ @Configuration @ConditionalOnClass({ EnableTransactionManagement.class, EntityManager.class }) @AutoConfigureAfter({ DataBaseConfiguration.class }) @MapperScan(basePackages={"com.modou.**.mapper","com.github.abel533.entity.mapper"}) public class MybatisConfiguration implements EnvironmentAware{  private static Log logger = LogFactory.getLog(MybatisConfiguration.class);  private RelaxedPropertyResolver propertyResolver;  @Resource(name="writeDataSource")  private DataSource writeDataSource;  @Resource(name="readDataSources")  private List<Object> readDataSources;  @Override  public void setEnvironment(Environment environment) {   this.propertyResolver = new RelaxedPropertyResolver(environment,"mybatis.");  }  @Bean  @ConditionalOnMissingBean  public SqlSessionFactory sqlSessionFactory() {   try {    SqlSessionFactoryBean sessionFactory = new SqlSessionFactoryBean();    sessionFactory.setDataSource(roundRobinDataSouceProxy());    sessionFactory.setTypeAliasesPackage(propertyResolver      .getProperty("typeAliasesPackage"));    sessionFactory      .setMapperLocations(new PathMatchingResourcePatternResolver()        .getResources(propertyResolver          .getProperty("mapperLocations")));    sessionFactory      .setConfigLocation(new DefaultResourceLoader()        .getResource(propertyResolver          .getProperty("configLocation")));    return sessionFactory.getObject();   } catch (Exception e) {    logger.warn("Could not confiure mybatis session factory");    return null;   }  }  @Bean  public RoundRobinRWRoutingDataSourceProxy roundRobinDataSouceProxy(){   RoundRobinRWRoutingDataSourceProxy proxy = new RoundRobinRWRoutingDataSourceProxy();   proxy.setWriteDataSource(writeDataSource);   proxy.setReadDataSoures(readDataSources);   proxy.setReadKey("READ");   proxy.setWriteKey("WRITE");   return proxy;  }  @Bean  @ConditionalOnMissingBean  public DataSourceTransactionManager transactionManager() {   return new DataSourceTransactionManager(writeDataSource);  } } 

package com.modou.weixin; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.boot.CommandLineRunner; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.EnableAutoConfiguration; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.ComponentScan; import org.springframework.context.annotation.Configuration; import com.modou.weixin.service.HelloWorldService; /**  * Created by chababa on 15/8/22.  */ @Configuration @ComponentScan(basePackages={"com.modou.conf","com.modou.weixin"}) @EnableAutoConfiguration public class Application implements CommandLineRunner{  @Autowired  HelloWorldService helloWorldService;  public static void main(String[] args) {   SpringApplication.run(Application.class, args);  }  @Override  public void run(String... args) throws Exception {   System.out.println(this.helloWorldService.print());  } } 

<?xml version="1.0"?> <project  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"  xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">  <modelVersion>4.0.0</modelVersion>  <parent>   <groupId>com.modou.weixin</groupId>   <artifactId>weixin-boot-parent</artifactId>   <version>0.0.1-SNAPSHOT</version>   <relativePath>../weixin-boot-parent</relativePath>  </parent>  <artifactId>weixin-boot-services</artifactId>  <name>weixin-boot-services</name>  <url>http://maven.apache.org</url>  <properties>   <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>   <springloaded.version>1.2.4.RELEASE</springloaded.version>  </properties>  <dependencies>   <dependency>    <groupId>com.modou.weixin</groupId>    <artifactId>weixin-boot-sdk</artifactId>    <version>${project.version}</version>   </dependency>   <dependency>    <groupId>com.modou.weixin</groupId>    <artifactId>mybatis-plugin-rw</artifactId>    <version>${project.version}</version>   </dependency>   <dependency>    <groupId>org.springframework.boot</groupId>    <artifactId>spring-boot-starter-web</artifactId>   </dependency>   <dependency>    <groupId>org.springframework.boot</groupId>    <artifactId>spring-boot-starter-actuator</artifactId>   </dependency>   <dependency>    <groupId>org.springframework.boot</groupId>    <artifactId>spring-boot-starter-thymeleaf</artifactId>   </dependency>   <dependency>    <groupId>org.springframework</groupId>    <artifactId>spring-jdbc</artifactId>   </dependency>   <dependency>    <groupId>javax.persistence</groupId>    <artifactId>persistence-api</artifactId>   </dependency>   <dependency>    <groupId>org.mybatis</groupId>    <artifactId>mybatis</artifactId>   </dependency>   <dependency>    <groupId>org.mybatis</groupId>    <artifactId>mybatis-spring</artifactId>   </dependency>   <dependency>    <groupId>com.alibaba</groupId>    <artifactId>druid</artifactId>   </dependency>   <dependency>    <groupId>mysql</groupId>    <artifactId>mysql-connector-java</artifactId>   </dependency>   <dependency>    <groupId>com.github.pagehelper</groupId>    <artifactId>pagehelper</artifactId>   </dependency>   <dependency>    <groupId>tk.mybatis</groupId>    <artifactId>mapper</artifactId>   </dependency>   <dependency>    <groupId>org.mybatis.generator</groupId>    <artifactId>mybatis-generator-core</artifactId>   </dependency>  </dependencies> </project>