spring boot & mybatis 集成 方法一

package com.s2u2m;import javax.sql.DataSource;import org.apache.ibatis.session.SqlSessionFactory;import org.apache.log4j.Logger;import org.mybatis.spring.SqlSessionFactoryBean;import org.mybatis.spring.annotation.MapperScan;import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.EnableAutoConfiguration;import org.springframework.boot.autoconfigure.SpringBootApplication;import org.springframework.boot.builder.SpringApplicationBuilder;import org.springframework.boot.context.properties.ConfigurationProperties;import org.springframework.boot.web.support.SpringBootServletInitializer;import org.springframework.context.annotation.Bean;import org.springframework.context.annotation.ComponentScan;import org.springframework.core.io.support.PathMatchingResourcePatternResolver;import org.springframework.jdbc.datasource.DataSourceTransactionManager;import org.springframework.transaction.PlatformTransactionManager;import com.s2u2m.laboruser.common.Constant;import com.s2u2m.laboruser.util.CommonUtil;import lombok.extern.slf4j.Slf4j;@MapperScan("com.s2u2m.dao")@SpringBootApplication@Slf4jpublic class LaborUnionApplication extends SpringBootServletInitializer {   @Override   protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {      return application.sources(LaborUnionApplication.class);   }   public static void main(String[] args) {      SpringApplication.run(LaborUnionApplication.class, args);   }   @Bean   @ConfigurationProperties(prefix = "spring.datasource")   public DataSource dataSource() {      return new org.apache.tomcat.jdbc.pool.DataSource();   }   @Bean   public SqlSessionFactory sqlSessionFactoryBean() throws Exception {      SqlSessionFactoryBean sqlSessionFactoryBean = new SqlSessionFactoryBean();      sqlSessionFactoryBean.setDataSource(dataSource());      PathMatchingResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();      sqlSessionFactoryBean         .setMapperLocations(resolver.getResources("classpath:/mapping/**/*.xml"));      return sqlSessionFactoryBean.getObject();   }   @Bean   public PlatformTransactionManager transactionManager() {      return new DataSourceTransactionManager(dataSource());   }}