，则使用OKHTTP
public int uploadfile(最终字符串selectedfilepath({
int serverResponseCode = 0;
HttpURLConnection connection;
DataOutputStream dataOutputStream;
String lineEnd = "rn";
String twoHyphens = "--";
String boundary = "*****";
int bytesRead,bytesAvailable,bufferSize;
byte[] buffer;
int maxBufferSize = 1 * 1024 * 1024;
File selectedFile = new File(selectedFilePath);
String[] parts = selectedFilePath.split("/");
final String fileName = parts[parts.length-1];
if (!selectedFile.isFile()){
// dialog.dismiss();
runOnUiThread(new Runnable() {
@Override
public void run() {
tvFileName.setText("Source File Doesn't Exist: " + selectedFilePath);
}
});
return 0;
}else{
try{
String sno = String.valueOf(439);
String topic_id = String.valueOf(172);
FileInputStream fileInputStream = new FileInputStream(selectedFile);
URL url = new URL(SERVER_URL);
connection = (HttpsURLConnection) url.openConnection();
connection.setRequestMethod("POST");
connection.setRequestProperty("Content-Type", "application/json;charset=UTF-8");
connection.setRequestProperty("Accept","application/json");
connection.setDoOutput(true);
connection.setDoInput(true);
JSONObject jsonObject = new JSONObject();
JSONArray jsonArray = new JSONArray();
JSONObject jsonObjectPost1 = new JSONObject();
jsonObjectPost1.put("sno", sno);
jsonObjectPost1.put("topic_id", topic_id);
jsonObjectPost1.put("attach_files", selectedFilePath);
jsonArray.put(jsonObjectPost1);
jsonObject.put("data", jsonArray);
//creating new dataoutputstream
dataOutputStream = new DataOutputStream(connection.getOutputStream());
//writing bytes to data outputstream
dataOutputStream.writeBytes(twoHyphens + boundary + lineEnd);
/* dataOutputStream.writeBytes("Content-Disposition: form-data; name="uploaded_file";filename=""
+ selectedFilePath + """ + lineEnd); */
dataOutputStream.writeBytes(connection.toString());
dataOutputStream.writeBytes(lineEnd);
//returns no. of bytes present in fileInputStream
bytesAvailable = fileInputStream.available();
//selecting the buffer size as minimum of available bytes or 1 MB
bufferSize = Math.min(bytesAvailable,maxBufferSize);
//setting the buffer as byte array of size of bufferSize
buffer = new byte[bufferSize];
//reads bytes from FileInputStream(from 0th index of buffer to buffersize)
bytesRead = fileInputStream.read(buffer,0,bufferSize);
//loop repeats till bytesRead = -1, i.e., no bytes are left to read
while (bytesRead > 0){
//write the bytes read from inputstream
dataOutputStream.write(buffer,0,bufferSize);
bytesAvailable = fileInputStream.available();
bufferSize = Math.min(bytesAvailable,maxBufferSize);
bytesRead = fileInputStream.read(buffer,0,bufferSize);
}
dataOutputStream.writeBytes(lineEnd);
// dataOutputStream.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);
dataOutputStream.writeBytes(connection.toString());
serverResponseCode = connection.getResponseCode();
String serverResponseMessage = connection.getResponseMessage();
Log.i(TAG, "Server Response is: " + serverResponseMessage + ": " + serverResponseCode);
//response code of 200 indicates the server status OK
if(serverResponseCode == 200){
runOnUiThread(new Runnable() {
@Override
public void run() {
tvFileName.setText("File Upload completed.nn You can see the uploaded file here: nn" + "http://coderefer.com/extras/uploads/"+ fileName);
}
});
}
//closing the input and output streams
fileInputStream.close();
dataOutputStream.flush();
dataOutputStream.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
runOnUiThread(new Runnable() {
@Override
public void run() {
Toast.makeText(MainActivity.this,"File Not Found",Toast.LENGTH_SHORT).show();
}
});
} catch (MalformedURLException e) {
e.printStackTrace();
Toast.makeText(MainActivity.this, "URL error!", Toast.LENGTH_SHORT).show();
} catch (IOException e) {
e.printStackTrace();
Toast.makeText(MainActivity.this, "Cannot Read/Write File!", Toast.LENGTH_SHORT).show();
} catch (JSONException e) {
e.printStackTrace();
}
// dialog.dismiss();
return serverResponseCode;
}
}
目标： - 在服务器上上传所有类型的文件，我已经尝试了，但没有任何可行的JSON对象是
{
"m_insert_status": true,
"data": [
{
"message_text": "vdJ1pMc6XI7Kg1IaUwUScAzID/LqFYK9DwtxtYgnO3FDErd+iWgud2OPy7iDqGjgykJQdAgVHhUeCfAlzvJt5g==",
"message_link": "https://hgedgdgwh",
"userid": "165",
"topic_id": "172",
"reply_user_id": "0",
"reply_message_id": "0"
}
],
"message": "Topic Insert Successfully"
}
我建议使用一些有用的库，改造将解决您的大多数问题，或者如果您想要原始数据响应
尝试更改
HttpURLConnection connection;
to
HttpsURLConnection connection;
来自Google网络安全配置文档，您可以通过添加此 -
来解决此问题。<?xml version="1.0" encoding="utf-8"?>
<manifest ...>
...
<application
...
android:usesClearTextTraffic="true"
...>
...
</application>
</manifest>
到您的AndroidManifest.xml文件
有关更多信息，您可以在此处查看Google Doc SO网络安全配置 - " https：//developer.android.com/training/articles/security-config"
糟糕的请求：400，正常原因通过错误的数据，例如错误的字段名称或类型