@Configuration
 public class DataSourceConfig {
 
 
     @Bean        //配置datsource Bean
                  //springboot 需要选取一个默认的datasource 加载classpath 下的sql 文件 ，
                  // 多数据源下 从上到下加载第一个 默认的datasource
     @ConfigurationProperties(prefix = "fcupadm.datasource") //自动装配datasource
     //需要和 @Bean 注解一块使用,
     @FgDataSource(
             name = "fcupadm",
             location = "classpath:mapper", //读取 claapath 下 mapper/fcupadm 下的xml文件
             scan = FcupUserfoMapper.class,  //mybatis 扫描该类下的所有的文件
             packages = {"org.cloudfun.msa.fcup.dal.fcupadm.mapper"} //packages 与scan 路径会合并扫描
     )
     public DruidDataSourceProperties fcupDataSource() {
         return new DruidDataSourceProperties();
     }
 
 
     @Bean(name = "payadm")
     @ConfigurationProperties(prefix = "payadmin.datasource")
     @FgDataSource(name = "payadm", scan = PayadmUserMapper.class)
     public DruidDataSourceProperties payDataSource() {
         return new DruidDataSourceProperties();
     }
 
 }