JSON parsing error special character processing (really speechless... Troubleshooting for a long time)

There is a need. I'll give you one http The interface to It is used to save data transmitted from other interfaces

No problem ··
then There is an error in the adjustment org.springframework.http.converter.HttpMessageNotReadableException: JSON parse error

Analyzing the problem is obviously First of all, I thought of the transmission json Is the format wrong Then let's go over there json I found a random one json Analyze the website No problem I know
And then I just Accept json String character string Self use gons analysis
I can't find out · The data format given is like this ··
Just this \ The problem of This hook 8 Given json The string is obviously not standardized That's bullshit There said no tojson Transferred It's a string json··· I'm a thief nm

Solution
use jackson Of ObjectMapper

ObjectMapper objectMapper = new ObjectMapper();
// Automatically handle backslashes 
objectMapper.configure(JsonParser.Feature.ALLOW_BACKSLASH_ESCAPING_ANY_CHARACTER,true); 
// Because it's spelled out “json”  So what else   Space   enter  
//  Special characters and escapes are allowed  
objectMapper.configure(JsonParser.Feature.ALLOW_UNQUOTED_CONTROL_CHARS, true); 
// Allow to appear   Single quotation marks 
objectMapper.configure(JsonParser.Feature.ALLOW_SINGLE_QUOTES, true);