Resolved [org.springframework.http.converter.HttpMessageNotReadableException: JSON parse error: Cannot construct instance of `ex.lgxy.qo.RightQo` (although at least one Creator exists): no String-argument constructor/factory method to deserialize from String value ('A'); nested exception is com.fasterxml.jackson.databind.exc.MismatchedInputException: Cannot construct instance of `ex.lgxy.qo.RightQo` (although at least one Creator exists): no String-argument constructor/factory method to deserialize from String value ('A')<EOL> at [Source: (PushbackInputStream); line: 1, column: 496] (through reference chain: ex.lgxy.qo.PaperQo["answer"]->java.util.ArrayList[0])]
时间: 2024-03-08 22:45:37 浏览: 265
解决The type org.springframework.dao.support.DaoSupport cannot be resolved.bao报错
这是一个关于 JSON 解析错误的异常,异常信息显示在反序列化时,无法构造 `ex.lgxy.qo.RightQo` 实例,因为没有接受 String 参数的构造函数或工厂方法来从字符串值('A')反序列化。这个异常可能是由于传入的 JSON 数据格式错误导致的,或者是由于代码中序列化和反序列化的方式不匹配引起的。建议检查 JSON 数据的格式是否正确,并且检查代码中的序列化和反序列化方式是否正确。
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