Cannot construct instance of `***.***.ArrayList` (although at least one Creator ...
错误信息
JSON parse error: Cannot construct instance of `***.***.ArrayList` (although at least one Creator exists): no String-argument constructor/factory method to deserialize from String value ('```'); nested exception is ***.***.***.***.***.MismatchedInputException: Cannot construct instance of `***.***.ArrayList` (although at least one Creator exists): no String-argument constructor/factory method to deserialize from String value ('```')
at [Source: (***.***.***.StreamUtils$NonClosingInputStream); line: 1, column: 47372] (through reference chain: ***.***.***.***.***.***.***.ChatCompletionReq["stop"])
AI 解决方案
{
"error_message": "JSON parse error: Cannot construct instance of `***.***.ArrayList` (although at least one Creator exists): no String-argument constructor/factory method to deserialize from String value (''); nested exception is .....MismatchedInputException: Cannot construct instance of ..ArrayList (although at least one Creator exists): no String-argument constructor/factory method to deserialize from String value ('``')",
"details": "at [Source: (...StreamUtils$NonClosingInputStream); line: 1, column: 47372] (through reference chain: .......ChatCompletionReq[\"stop\"])"}
* **错误翻译**:
JSON解析错误:无法实例化..ArrayList
(尽管至少存在一个构造函数):没有可以从字符串值('`')反序列化的String参数的构造函数/工厂方法。
* **原因分析**:
JSON数据中,`stop`字段期望接收一个字符串列表(`ArrayList`),但实际接收到的值却是包含三个反引号(`
)的字符串,Jackson库无法将这个字符串直接转换成一个ArrayList。 解决方案:确保发送给API的JSON数据中,
stop字段的值是一个合法的JSON数组(字符串列表)。例如: {
"model": "gpt-3.5-turbo",
"messages": [{"role": "user", "content": "你好"}],
"stop": ["string1", "string2"]
}
或者,如果
stop字段允许为空,则可以将其设置为null或一个空数组[],具体取决于API的定义。预防措施*:
1. 在发送API请求前,对要发送的JSON数据进行严格的格式校验,特别是对于期望为列表类型的字段。
2. 使用API SDK或封装好的请求工具,它们通常会处理好数据类型的转换和校验,减少直接操作JSON字符串出错的概率。