Java JsonParseException : 非法的未加引号的字符（（CTRL-CHAR，代码 10）
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JsonParseException : Illegal unquoted character ((CTRL-CHAR, code 10)
提问by jian zhong
I'm trying to use org.apache.httpcomponentsto consume a Rest API, which will post JSON format data to API.
我正在尝试使用org.apache.httpcomponentsRest API，它将 JSON 格式的数据发布到 API。
I get this exception:
我得到这个例外：
Caused by: com.fasterxml.Hymanson.core.JsonParseException: Illegal unquoted character ((CTRL-CHAR, code 10)): has to be escaped using backslash to be included in string.
引起：com.fasterxml.Hymanson.core.JsonParseException：非法的未加引号的字符（（CTRL-CHAR，代码 10））：必须使用反斜杠进行转义才能包含在字符串中。
The reason is because ctrl-charis included in the JSON string.
原因是因为ctrl-char包含在 JSON 字符串中。
Is there any way to replace this or some other solution?
有什么办法可以代替这个或其他一些解决方案吗？
回答by pyrospade
This can happen if you have a newline (or other control character) in a JSON string literal.
如果 JSON 字符串文字中有换行符（或其他控制字符），就会发生这种情况。
{"foo": "bar
baz"}
If you are the one producing the data, replace actual newlines with escaped ones "\\n"when creating your string literals.
如果您是生成数据的人，请"\\n"在创建字符串文字时用转义的换行符替换实际的换行符。
{"foo": "bar\nbaz"}
回答by hoang
Using
使用
mapper.configure(Feature.ALLOW_UNQUOTED_CONTROL_CHARS, true);
See javadoc:
见javadoc：
/**
* Feature that determines whether parser will allow
* JSON Strings to contain unquoted control characters
* (ASCII characters with value less than 32, including
* tab and line feed characters) or not.
* If feature is set false, an exception is thrown if such a
* character is encountered.
*<p>
* Since JSON specification requires quoting for all control characters,
* this is a non-standard feature, and as such disabled by default.
*/
回答by Daniel Sokolowski
On Salesforce platform this error is caused by /, the solution is to escape these as //.
在 Salesforce 平台上，此错误是由 引起的/，解决方案是将这些转义为//.
