java org.codehaus.jackson.JsonParseException: 意外字符 ('?' (code 65533 / 0xfffd))
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org.codehaus.Hymanson.JsonParseException: Unexpected character ('?' (code 65533 / 0xfffd))
提问by Nikhil soni
I have a Json string in the database but while converting in Java object, it gives following error:
我在数据库中有一个 Json 字符串，但是在 Java 对象中转换时，它出现以下错误：
Caused by: org.codehaus.Hymanson.JsonParseException: Unexpected character ('?' (code 65533 / 0xfffd)): expected a valid value (number, String, array, object, 'true', 'false' or 'null')
引起：org.codehaus.Hymanson.JsonParseException：意外字符（'？'（代码 65533 / 0xfffd））：预期有效值（数字、字符串、数组、对象、'true'、'false' 或 'null'）
Json is : {"crt":"wrd","name":"7|6A TTTM"}
杰森是： {"crt":"wrd","name":"7|6A TTTM"}
In java code I have configured it and have made it private (not static final)
在 Java 代码中，我已经配置了它并将其设为私有（不是静态最终的）
objectMapper= new ObjectMapper();
objectMapper.configure(DeserializationConfig.Feature.ACCEPT_SINGLE_VALUE_AS_ARRAY, true);
Note:It some time converts that Json string in Object but some time gives above error. Why this unexpected result comes?
注意：有时会在 Object 中转换该 Json 字符串，但有时会出现上述错误。为什么会出现这个意想不到的结果？
回答by Mihnea
Short answer solution: Remove the first occurrence of the extra added BOM text with a method, such as the following, should fix this issue:
简答解决方案：使用如下方法删除第一次出现的额外添加的 BOM 文本，应该可以解决此问题：
public String cleanUpJsonBOM(String json) {
return json.trim().replaceFirst("\ufeff", "");
}
I had a similar issue which I documented in a blog post. Hope this help!
我在博客文章中记录了类似的问题。希望这有帮助！
回答by Priyamal
this worked for me.
这对我有用。
String formattedString = yourString.trim().replaceAll("\uFFFD", "");
回答by StaxMan
Something is producing invalid UTF-8 sequence (or, mismatch of UTF-8 vs a single-byte encoding like ISO-8859-1), and Hymanson detects this encoding problem. It has nothing to do with ACCEPT_SINGLE_VALUE_AS_ARRAYsetting, as the exception comes from low-level JsonParser.
某些东西正在产生无效的 UTF-8 序列（或者，UTF-8 与单字节编码（如 ISO-8859-1）不匹配），而 Hymanson 检测到此编码问题。它与ACCEPT_SINGLE_VALUE_AS_ARRAY设置无关，因为异常来自低级JsonParser.
So you need to figure out why the JSON content to parse is corrupt.
所以你需要弄清楚为什么要解析的 JSON 内容是损坏的。
