org.springframework.dao.InvalidDataAccessApiUsageException: Cannot autogenerate id of type java.lang.Integer for entity of type com.zsf.spider.model.Article!
	at org.springframework.data.mongodb.core.EntityOperations$MappedEntity.assertUpdateableIdIfNotSet(EntityOperations.java:537)
	at org.springframework.data.mongodb.core.MongoTemplate.doInsert(MongoTemplate.java:1238)
	at org.springframework.data.mongodb.core.MongoTemplate.insert(MongoTemplate.java:1178)
	at com.zsf.spider.SpiderArticle.start(SpiderArticle.java:118)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)