SpringBoot启动报：Caused by: java.lang.IllegalArgumentException: At least one JPA metamodel must be present!

使用spring boot对项目改造，启动报错：

Caused by: java.lang.IllegalArgumentException: At least one JPA metamodel must be present!

估计是跟多个数据源有关，改成如下这样就可以了

    @SpringBootApplication
    @EnableAutoConfiguration(exclude={
          JpaRepositoriesAutoConfiguration.class//禁止springboot自动加载持久化bean
            })
    @ImportResource({"classpath:spring-servlet.xml"})
    public class JzApplication {    

        public static void main(String[] args) throws Exception {
            ApplicationContext ctx = SpringApplication.run(JzApplication .class,args);
        }
    }   

原因：可能在启动其他项目的时候，一些持久化的bean被加载了，导致这种情况

参考地址：http://blog.****.net/terry7/article/details/51996979