此数据是从 Postman 发送的并且有效:
这是一个以 200 状态通过的 postman 请求:
POST /api/upload HTTP/1.1
Host: api.test.contoso.se
Content-Type: multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW
Authorization: Basic 123
User-Agent: PostmanRuntime/7.13.0
Accept: */*
Cache-Control: no-cache
Postman-Token: 089af753-fa12-46c4-326f-dfc39c36faab,c5977145-ece3-4b53-93ff-057788eb0dcf
Host: api.test.contoso.se
accept-encoding: gzip, deflate
content-length: 18354
Connection: keep-alive
cache-control: no-cache
Content-Disposition: form-data; name="Lang"
SV
------WebKitFormBoundary7MA4YWxkTrZu0gW--
Content-Disposition: form-data; name="File"; filename="/C:/Users/file.docx
------WebKitFormBoundary7MA4YWxkTrZu0gW--
Content-Disposition: form-data; name="Login"
ABC
这是我通过 Axios 来自 NodeJs 的请求:
const form_data = new FormData();
form_data.append("File", fs.createReadStream(pathToFile));
form_data.append('Login', alias.toUpperCase());
console.log(form_data); // se output down
const request_config = {
headers: {
"Authorization": "Basic 123",
"Content-Type": `multipart/form-data; boundary=${form_data._boundary}`
},
data: form_data
};
控制台日志(表单数据):
FormData {
_overheadLength: 540,
_valueLength: 13,
_valuesToMeasure:
[ ReadStream {
_readableState: [ReadableState],
readable: true,
_events: [Object],
_eventsCount: 3,
_maxListeners: undefined,
path:
'/Users/qq/test.docx',
fd: null,
flags: 'r',
mode: 438,
start: undefined,
end: Infinity,
autoClose: true,
pos: undefined,
bytesRead: 0,
closed: false,
emit: [Function] } ],
writable: false,
readable: true,
dataSize: 0,
maxDataSize: 2097152,
pauseStreams: true,
_released: false,
_streams:
[ '----------------------------610001147909085905792533\r\nContent-Disposition: form-data; name="File"; filename="test.docx"\r\nContent-Type: application/vnd.openxmlformats-officedocument.wordprocessingml.document\r\n\r\n',
DelayedStream {
source: [ReadStream],
dataSize: 0,
maxDataSize: Infinity,
pauseStream: true,
_maxDataSizeExceeded: false,
_released: false,
_bufferedEvents: [Array],
_events: [Object],
_eventsCount: 1 },
[Function: bound ],
'----------------------------610001147909085905792533\r\nContent-Disposition: form-data; name="Login"\r\n\r\n',
'abc',
[Function: bound ] ],
_currentStream: null,
_insideLoop: false,
_pendingNext: false,
_boundary: '--------------------------610001147909085905792533
我从 ASP 服务器得到的错误:Line length limit 100 exceeded
我的请求中缺少什么？
最佳答案
根据这两个github问题:
https://github.com/aspnet/AspNetCore/issues/2939
https://github.com/aspnet/AspNetCore/issues/3724
该问题是由于未能使用正确的行结尾引起的。我无法从您的代码中确切地知道问题出在哪里，但调试它应该相当简单。
您需要使用代理 - 我找到了 Fiddler非常好。捕获来自 postman 和您的客户的请求并进行比较。您可能需要将整个请求放入 Notepad++ 等编辑器中才能查看非打印字符。
一旦发现问题，应该可以直接修改以根据需要添加或删除 \r。
关于c# - 发送帖子请求多部分表单数据。来自某些 Microsoft 服务的错误 "Line length limit 100 exceeded"，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/56579151/