如果有人可以帮我指导我究竟做错了什么..因为我使用Postman客户端向我的node.js服务器发出get请求并且能够完美地完成它细
04-28 01:21:03.983 5362-5486/xyz.hexene.localvpn I/uploadFile: HTTP Response is : Not Found: 404
04-28 01:21:03.983 5362-5486/xyz.hexene.localvpn E/404 ERROR: Not Found
这是我的android代码：
public void uploadFile() {
Thread thread = new Thread() {
@Override
public void run() {
HttpURLConnection conn = null;
DataOutputStream dos = null;
String lineEnd = "\r\n";
String twoHyphens = "--";
String boundary = "*****";
int bytesRead, bytesAvailable, bufferSize;
byte[] buffer;
int maxBufferSize = 1 * 1024 * 1024;
File sourceFile = new File(AccountInfo.getContext().getFilesDir() + "/" + fileName);
if (!sourceFile.isFile()) {
Log.e("uploadFile", "Source File not exist :" + AccountInfo.getContext().getFilesDir() + "/" + fileName);
} else {
try {
FileInputStream fileInputStream = new FileInputStream(sourceFile);
URL url = new URL("http://192.168.1.66:3000/upload");
conn = (HttpURLConnection) url.openConnection();
conn.setDoInput(true); // Allow Inputs
//conn.setDoOutput(true); // Allow Outputs
conn.setUseCaches(false); // Don't use a Cached Copy
conn.setRequestMethod("POST");
conn.setRequestProperty("Connection", "Keep-Alive");
// conn.setRequestProperty("ENCTYPE", "multipart/form-data");
conn.setRequestProperty("Content-Type", "multipart/form-data;boundary=" + boundary);
conn.setRequestProperty("uploaded_file", fileName);
dos = new DataOutputStream(conn.getOutputStream());
dos.writeBytes(twoHyphens + boundary + lineEnd);
//Adding Parameter name
String name = "amir";
dos.writeBytes("Content-Disposition: form-data; name=\"name\"" + lineEnd);
//dos.writeBytes("Content-Type: text/plain; charset=UTF-8" + lineEnd);
//dos.writeBytes("Content-Length: " + name.length() + lineEnd);
dos.writeBytes(lineEnd);
dos.writeBytes(name); // mobile_no is String variable
dos.writeBytes(lineEnd);
dos.writeBytes(twoHyphens + boundary + lineEnd);
//Adding Parameter phone
String phone = "9956565656";
dos.writeBytes("Content-Disposition: form-data; name=\"phone\"" + lineEnd);
//dos.writeBytes("Content-Type: text/plain; charset=UTF-8" + lineEnd);
//dos.writeBytes("Content-Length: " + name.length() + lineEnd);
dos.writeBytes(lineEnd);
dos.writeBytes(phone); // mobile_no is String variable
dos.writeBytes(lineEnd);
//Json_Encoder encode=new Json_Encoder();
//call to encode method and assigning response data to variable 'data'
//String data=encode.encod_to_json();
//response of encoded data
//System.out.println(data);
//Adding Parameter filepath
dos.writeBytes(twoHyphens + boundary + lineEnd);
String filepath = "http://192.168.1.110/echo/uploads" + fileName;
dos.writeBytes("Content-Disposition: form-data; name=\"filepath\"" + lineEnd);
//dos.writeBytes("Content-Type: text/plain; charset=UTF-8" + lineEnd);
//dos.writeBytes("Content-Length: " + name.length() + lineEnd);
dos.writeBytes(lineEnd);
dos.writeBytes(filepath); // mobile_no is String variable
dos.writeBytes(lineEnd);
//Adding Parameter media file(audio,video and image)
dos.writeBytes(twoHyphens + boundary + lineEnd);
dos.writeBytes("Content-Disposition: form-data; name=\"uploaded_file\";filename=\"" + fileName + "\"" + lineEnd);
dos.writeBytes(lineEnd);
// create a buffer of maximum size
bytesAvailable = fileInputStream.available();
bufferSize = Math.min(bytesAvailable, maxBufferSize);
buffer = new byte[bufferSize];
// read file and write it into form...
bytesRead = fileInputStream.read(buffer, 0, bufferSize);
while (bytesRead > 0) {
dos.write(buffer, 0, bufferSize);
bytesAvailable = fileInputStream.available();
bufferSize = Math.min(bytesAvailable, maxBufferSize);
bytesRead = fileInputStream.read(buffer, 0, bufferSize);
}
// send multipart form data necesssary after file data...
dos.writeBytes(lineEnd);
dos.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);
serverResponseCode = conn.getResponseCode();
String serverResponseMessage = conn.getResponseMessage();
Log.i("uploadFile", "HTTP Response is : " + serverResponseMessage + ": " + serverResponseCode);
if (serverResponseCode == 200) {
Log.e("PASSED", "IT WORKS!!! YESS");
} else {
Log.e("404 ERROR", conn.getResponseMessage());
}
// close the streams //
fileInputStream.close();
dos.flush();
dos.close();
} catch (MalformedURLException ex) {
ex.printStackTrace();
Log.e("Upload file to server", "error: " + ex.getMessage(), ex);
} catch (final Exception e) {
e.printStackTrace();
Log.e("Upload file Exception",
"Exception : " + e.getMessage(), e);
}
}
}
};
thread.start();
}
以下是我的node.js服务器:(抱歉，我知道这不是令人印象深刻，我还在学习node.js）
1 var express = require('express')
2 var app = express()
3 var multer = require('multer')
4 var upload = multer()
5
6 app.get('/', function (req, res) {
7 res.send('Hello World! (' + Date.now() + ")");
8 });
9
10 var server = app.listen(3000, function () {
11 console.log("Express server is started. (port: 3000)");
12 });
13
14 app.get('/upload', upload.array(), function(req,res){
15 //console.log(req); //form fields
16 console.log(res.files); //form files
17
18
19 res.send("You got to the upload");
20 });
我之前没有注释conn.setDoOutput（true），但仍然是同样的错误。我的Node.js服务器现在没有运行，因为我只是在本地测试它，所以如果你尝试ping node.js服务器，它将不会显示当前正在运行。