Content size exceeds specified contentLength

[BytesZero]

Steps to Reproduce

• 请求方式

Map<String, dynamic> data
dio.post(path, data: data);

• 请求失败

requestPost host:http://api-shuangshi.test.tengyue360.com/ path:/backend/student/stuApp/evaluate data:{content: 测试测试测试, courseId: 110, score: 3, anonymous: 1, evaluateObject: 2, timestamp: 1537426578634}

如果我把content换成英文，则请求成功。

• 请求成功

requestPost host:http://api-shuangshi.test.tengyue360.com/ path:/backend/student/stuApp/evaluate data:{content: test, courseId: 110, score: 5, anonymous: 1, evaluateObject: 1, timestamp: 1537426565722} 

Logs

DioError [DioErrorType.DEFAULT]: HttpException: Content size exceeds specified contentLength. 124 bytes written while expected 112. [{"content":"������","courseId":"110","score":3,"anonymous":"1","evaluateObject":"2","timestamp":"1537426578634"}]
I/flutter (14570): DioError [DioErrorType.DEFAULT]: HttpException: Content size exceeds specified contentLength. 124 bytes written while expected 112. [{"content":"������","courseId":"110","score":3,"anonymous":"1","evaluateObject":"2","timestamp":"1537426578634"}]

[BytesZero]

If the parameter is Chinese, it will appear back in question.

[BytesZero]

@wendux Thank you very much, the update is very fast. 666