后台报错内容
JsonParseException: Unexpected character ('?' (code 255))
原因
一般出现这种异常都是前台给后台传递的 JSON 字符串格式是错误的
例如: 前台给后台传递了一个 {aa:"aa",bb:"bb"} 这种字符串, 后台使用 jackson 将这个 JSON 字符串转为对象时就会抛出 JsonParseException: Unexpected character ('a' (code 97)) 异常
JsonParseException: Unexpected character ('?' (code xxx))
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Caused by: com.fasterxml.jackson.core.JsonParseException: Illegal character ((CTRL-CHAR, code 31)): only regular white space (\r, \n, \t) is allowed between tokens
bug处理记录：com.fasterxml.jackson.core.JsonParseException: Illegal unquoted character ((CTRL-CHAR, code 9)): has to be escaped using backslash to be included in string value
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