java.lang.IllegalArgumentException: The number of object passed must be even but was [1]

操作Elasticsearch的时候报错java.lang.IllegalArgumentException: The number of object passed must be even but was [1]，这是因为他不知道你传的是什么类型，必须在后面要跟上一个文档类型XContentType.JSON，如图，加上就好了