http请求返回400错误 桃扇骨 2023-09-27 11:09 69阅读 0赞 ## 错误 ## http请求返回400错误 ### 详细错误 ### 2022-09-20 20:18:04.770 23102-23145/com.example.electronicmall D/ControlsProviderService: 请求成功:Response{ protocol=http/1.1, code=400, message=, url=http://192.168.0.107:8080/demo/getInfoRecordByUserId} 2022-09-20 20:18:04.771 23102-23145/com.example.electronicmall I/System.out: responseData{ "timestamp":"2022-09-20T12:18:04.102+00:00","status":400,"error":"Bad Request","message":"","path":"/demo/getInfoRecordByUserId"} 2022-09-20 20:18:04.771 23102-23145/com.example.electronicmall W/System.err: org.json.JSONException: Value { "timestamp":"2022-09-20T12:18:04.102+00:00","status":400,"error":"Bad Request","message":"","path":"\/demo\/getInfoRecordByUserId"} of type org.json.JSONObject cannot be converted to JSONArray 2022-09-20 20:18:04.772 23102-23145/com.example.electronicmall W/System.err: at org.json.JSON.typeMismatch(JSON.java:112) 2022-09-20 20:18:04.772 23102-23145/com.example.electronicmall W/System.err: at org.json.JSONArray.<init>(JSONArray.java:98) 2022-09-20 20:18:04.772 23102-23145/com.example.electronicmall W/System.err: at org.json.JSONArray.<init>(JSONArray.java:110) 2022-09-20 20:18:04.772 23102-23145/com.example.electronicmall W/System.err: at com.example.electronicmall.test.User.UserRecordsActivity$1.onResponse(UserRecordsActivity.java:102) 2022-09-20 20:18:04.772 23102-23145/com.example.electronicmall W/System.err: at com.squareup.okhttp.Call$AsyncCall.execute(Call.java:168) 2022-09-20 20:18:04.772 23102-23145/com.example.electronicmall W/System.err: at com.squareup.okhttp.internal.NamedRunnable.run(NamedRunnable.java:33) 2022-09-20 20:18:04.772 23102-23145/com.example.electronicmall W/System.err: at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167) 2022-09-20 20:18:04.772 23102-23145/com.example.electronicmall W/System.err: at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641) 2022-09-20 20:18:04.772 23102-23145/com.example.electronicmall W/System.err: at java.lang.Thread.run(Thread.java:929) ### 解决方案 ### 检查请求数据是否存在(是否为null) 笔者由于请求数据为null, 产生该错误 ### 原因 ### 400 Bad Request 是由于明显的客户端错误(例如,格式错误的请求语法,太大的大小,无效的请求消息或欺骗性路由请求),服务器不能或不会处理该请求。 对于400错误 产生原因如下 1、前端提交数据的字段名称或者是字段类型和后台的实体类不一致,导致无法封装; 2、前端提交的到后台的数据应该是 json 字符串类型,而前端没有将对象转化为字符串类型; 3、前端提交数据的字段为空 。 ### 参考文献 ### [HTTP 400 错误][HTTP 400] 原创不易 转载请标明出处 如果对你有所帮助 别忘啦点赞支持哈 ![在这里插入图片描述][9cb4cb80a18345158f8a69e2f196e5b9.png] [HTTP 400]: https://www.runoob.com/w3cnote/http-400.html [9cb4cb80a18345158f8a69e2f196e5b9.png]: https://img-blog.csdnimg.cn/9cb4cb80a18345158f8a69e2f196e5b9.png
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