springboot+elasticsearch 中测试查询语句报错failed to map source

情况描述

    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.1.4.RELEASE.jar:5.1.4.RELEASE]
        at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:93) ~[spring-aop-5.1.4.RELEASE.jar:5.1.4.RELEASE]
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.1.4.RELEASE.jar:5.1.4.RELEASE]
        at org.springframework.data.repository.core.support.SurroundingTransactionDetectorMethodInterceptor.invoke(SurroundingTransactionDetectorMethodInterceptor.java:61) ~[spring-data-commons-2.1.4.RELEASE.jar:2.1.4.RELEASE]

返回值报错信息

timestamp": "2019-04-18T08:18:47.057+0000",
    "status": 500,
    "error": "Internal Server Error",
    "message": "failed to map source [ {\"id\":1,\"userid\":\"1001555503316100\",\"types\":\"这是一个测试商品\",\"description\":\"1555503316100\"}] to class ElasticsearchEntity",
    "path": "/word"

查找到这就行了
网上有很多答案
在实体类中加无参构造器就行了

public ElasticsearchEntity(){
}

借鉴:https://www.cnblogs.com/zmxsean/p/10065740.html