英文:
Unexpected EOF when sending POST request
问题
我在使用http包发送一个简单的POST请求时遇到了一些问题：
var http_client http.Client
req, err := http.NewRequest("POST", "http://login.blah", nil)
if err != nil {
return errors.New("创建登录请求时出错：" + err.Error())
}
req.Header.Add("Content-Type", "application/x-www-form-urlencoded")
body := fmt.Sprintf("?username=%s&password=%s&version=%d", client.Username, client.Password, launcherVersion)
fmt.Println("请求体：", body)
req.Body = ioutil.NopCloser(bytes.NewBufferString(body))
req.ParseForm()
resp, err := http_client.Do(req)
if err != nil {
return errors.New("发送登录请求时出错：" + err.Error())
}
我在打印输出中看到了正确的请求体：
请求体：?username=test&password=test&version=13
但是60秒后，我收到了以下错误信息：
发送登录请求时出错：意外的EOF
我确定问题与我设置请求体的方式有关，因为使用Wireshark观察请求时，可以看到请求立即发送出去，但Content-Length为0，没有请求体。
POST / HTTP/1.1
Host: login.blah
User-Agent: Go http package
Content-Length: 0
Content-Type: application/x-www-form-urlencoded
Accept-Encoding: gzip
英文:
I'm having some trouble sending a simple POST request with the http package:
var http_client http.Client
req, err := http.NewRequest("POST", "http://login.blah", nil)
if err != nil {
return errors.New("Error creating login request: " + err.Error())
}
req.Header.Add("Content-Type", "application/x-www-form-urlencoded")
body := fmt.Sprintf("?username=%s&password=%s&version=%d", client.Username, client.Password, launcherVersion)
fmt.Println("Body:", body)
req.Body = ioutil.NopCloser(bytes.NewBufferString(body))
req.ParseForm()
resp, err := http_client.Do(req)
if err != nil {
return errors.New("Error sending login request: " + err.Error())
}
I see the correct body from the print:
Body: ?username=test&password=test&version=13
But after 60 seconds, I get:
Error sending login request: unexpected EOF
I'm sure it has something to do with how I set the request body, because watching it with Wireshark shows me the request, which goes out right away, has a Content-Length of 0 with no body.
POST / HTTP/1.1
Host: login.blah
User-Agent: Go http package
Content-Length: 0
Content-Type: application/x-www-form-urlencoded
Accept-Encoding: gzip
答案1
得分: 3
你的body字符串看起来像是一个URL的结尾，就像你在发送GET请求时发送参数一样。
服务器可能期望你的POST请求的body以multipart/form-data格式发送，该格式在http://www.w3.org/TR/html401/interact/forms.html#form-data-set中定义。
我认为你应该：
-
使用multipart.Writer来构建你的body。
-
使用PostForm，就像包示例中的方式：
resp, err := http.PostForm("http://example.com/form",
url.Values{"key": {"Value"}, "id": {"123"}})
英文:
Your body string looks like the end of an URL, just like it would be if you were sending your parameter in a GET request.
The server probably expects the body of your POST request to be in multipart/form-data format as defined in http://www.w3.org/TR/html401/interact/forms.html#form-data-set
I think you should either
-
use a multipart.Writer to build your body.
-
use PostForm as in the package example :
resp, err := http.PostForm("http://example.com/form", url.Values{"key": {"Value"}, "id": {"123"}})
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