解决POSTMAN传参报错，JSON parse error: Cannot deserialize instance of `java.util.ArrayList` out of START

前言：使用POSTMAN自测代码以便前后端联调时，发送请求后，BOOM！！！服务器抛了个这样式的东西出来。

Resolved [org.springframework.http.converter.HttpMessageNotReadableException: JSON parse error: Cannot deserialize instance of `java.util.ArrayList` out of START_OBJECT token; nested exception is com.fasterxml.jackson.databind.exc.MismatchedInputException: Cannot deserialize instance of `java.util.ArrayList` out of START_OBJECT token at [Source: (PushbackInputStream); line: 1, column: 1]]

正文：这个异常信息叽里呱啦说了一堆，其实就是在说，JSON解析报错：木有办法反序列化 ArrayList 实例

由上面的异常异常信息，我们先看一下接口的入参的确是ArrayList 属实没问题
@PostMapping("/##")
public RespDto<XYZ> enableSysParam(@RequestBody List<XX> XXList) {//xxx
}
再看一下 POSTMAN 传的请求入参JSON串
{"xx":[{"configNo":"10003","configName":"A","value":"99"},{"configNo":"10034","configName":"B","value":"7"},{"configNo":"10080","configName":"C","value":"7"}]
}
很明显问题就出在这，上一个测试接口的入参格式是ObjectA<List>，所以博主直接把上次POSTMAN测试的拿来用了，可见图省事费大劲。这次的入参格式为List ，更正如下。
[{"configNo":"10003","configName":"A","value":"99"},{"configNo":"10034","configName":"B","value":"7"},{"configNo":"10080","configName":"C","value":"7"}
]

OK，解决POSTMAN传参报错，完结撒花

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