Java 如何在Android中读取文件上传的服务器响应(JSON)?
我有一段代码,可以将文件上传到我们的服务器(PHP)。如何读取服务器的输出,不仅仅是代码200或“ok”,而是实际的JSON响应 我见过使用InputStreamReader和BufferedReader的示例,但我不确定如何使用它们Java 如何在Android中读取文件上传的服务器响应(JSON)?,java,android,file-upload,Java,Android,File Upload,我有一段代码,可以将文件上传到我们的服务器(PHP)。如何读取服务器的输出,不仅仅是代码200或“ok”,而是实际的JSON响应 我见过使用InputStreamReader和BufferedReader的示例,但我不确定如何使用它们 public String uploadFile(){ String result = "Result:"; HttpURLConnection connection = null; DataOutputStream output
public String uploadFile(){
String result = "Result:";
HttpURLConnection connection = null;
DataOutputStream outputStream = null;
DataInputStream inputStream = null;
String pathToOurFile = "/storage/emulated/0/My Documents/My Recordings/Voice0007.aac";
String lineEnd = "\r\n";
String twoHyphens = "--";
String boundary = "*****";
int bytesRead, bytesAvailable, bufferSize;
byte[] buffer;
int maxBufferSize = 1*1024*1024*1024;
try
{
FileInputStream fileInputStream = new FileInputStream(new File(pathToOurFile) );
URL url = new URL(SERVER_URL);
connection = (HttpURLConnection) url.openConnection();
// Allow Inputs & Outputs.
connection.setDoInput(true);
connection.setDoOutput(true);
connection.setUseCaches(false);
// Set HTTP method to POST.
connection.setRequestMethod("POST");
connection.setRequestProperty("Connection", "Keep-Alive");
connection.setRequestProperty("Content-Type", "multipart/form-data;boundary="+boundary);
outputStream = new DataOutputStream( connection.getOutputStream() );
outputStream.writeBytes(twoHyphens + boundary + lineEnd);
outputStream.writeBytes("Content-Disposition: form-data; name=\"uploadedfile\";filename=\"" + pathToOurFile +"\"" + lineEnd);
outputStream.writeBytes(lineEnd);
bytesAvailable = fileInputStream.available();
bufferSize = Math.min(bytesAvailable, maxBufferSize);
buffer = new byte[bufferSize];
// Read file
bytesRead = fileInputStream.read(buffer, 0, bufferSize);
while (bytesRead > 0){
outputStream.write(buffer, 0, bufferSize);
bytesAvailable = fileInputStream.available();
bufferSize = Math.min(bytesAvailable, maxBufferSize);
bytesRead = fileInputStream.read(buffer, 0, bufferSize);
}
outputStream.writeBytes(lineEnd);
outputStream.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);
//inputStream = (DataInputStream) connection.getInputStream();
// Responses from the server (code and message)
int serverResponseCode = connection.getResponseCode();
// doesn't show the JSON respnse :(
String serverResponseMessage = connection.getResponseMessage();
String line = "";
while ((line = bufferReader.readLine()) != null) {
Log.d("Test", line);
}
bufferReader.close();
fileInputStream.close();
outputStream.flush();
outputStream.close();
result = serverResponseCode + "-"+ serverResponseMessage;
}
catch (Exception ex)
{
result = "exception: "+(ex.getStackTrace().toString()) + "\n" + ex.toString();
}finally{
return result;
}
}
}您要查找的JSON将写入HTTP响应中 要获取它,您需要获取Connections InputStream并按如下方式读取:
InputStream in;
try {
in = connection.getInputStream();
byte[] buffer = new byte[1024];
int read;
while ((read = in.read(buffer)) > 0) {
System.out.println(new String(buffer, 0, read, "utf-8"));
}
} finally {
in.close();
}
为我工作。。谢谢我正在编辑这个答案,希望它也能帮助其他人。