Unexpected character (‘o’ (code 111)): was expecting double-

报错：[域名.域名域名leHttpMessageNotReadable]Failed to read HTTP message: 域名.域名MessageNotReadableException: Could not read JSON document: Unexpected character (‘o’ (code 111)): was expecting double-quote to start field name
at [Source: 域名backInputStream@1f424599; line: 3, column: 4]; nested exception is 域名域名ParseException: Unexpected character (‘o’ (code 111)): was expecting double-quote to start field name.

在postman调试中，出现已上报错。

原因是参数形式未加引号。

错误：{ open : 1 }

正确：{ “open” : 1}

附引：elasticsearch在window中报错：”Unexpected character (‘m’ (code 109)): was expecting double-quote to start