这里我使用此代码将文件上传到php server.i希望将EditText值（String）与文件一起发送，以便我将字符串和图像路径保存到数据库。 如何修改android代码以发送字符串和所选文件。这是代码。
编辑：
public class MainActivity extends AppCompatActivity implements View.OnClickListener{
private static final int PICK_FILE_REQUEST = 1;
private static final String TAG = MainActivity.class.getSimpleName();
private String selectedFilePath;
private String SERVER_URL = "http://coderefer.com/extras/UploadToServer.php";
ImageView ivAttachment;
Button bUpload;
TextView tvFileName;
ProgressDialog dialog;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ivAttachment = (ImageView) findViewById(R.id.ivAttachment);
bUpload = (Button) findViewById(R.id.b_upload);
tvFileName = (TextView) findViewById(R.id.tv_file_name);
ivAttachment.setOnClickListener(this);
bUpload.setOnClickListener(this);
}
@Override
public void onClick(View v) {
if(v== ivAttachment){
//on attachment icon click
showFileChooser();
}
if(v== bUpload){
//on upload button Click
if(selectedFilePath != null){
dialog = ProgressDialog.show(MainActivity.this,"","Uploading File...",true);
new Thread(new Runnable() {
@Override
public void run() {
//creating new thread to handle Http Operations
uploadFile(selectedFilePath);
}
}).start();
}else{
Toast.makeText(MainActivity.this,"Please choose a File First",Toast.LENGTH_SHORT).show();
}
}
}
private void showFileChooser() {
Intent intent = new Intent();
//sets the select file to all types of files
intent.setType("file/*");
//allows to select data and return it
intent.setAction(Intent.ACTION_GET_CONTENT);
//starts new activity to select file and return data
startActivityForResult(Intent.createChooser(intent,"Choose File to Upload.."),PICK_FILE_REQUEST);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if(resultCode == Activity.RESULT_OK){
if(requestCode == PICK_FILE_REQUEST){
if(data == null){
//no data present
return;
}
Uri selectedFileUri = data.getData();
selectedFilePath = FilePath.getPath(this,selectedFileUri);
Log.i(TAG,"Selected File Path:" + selectedFilePath);
if(selectedFilePath != null && !selectedFilePath.equals("")){
tvFileName.setText(selectedFilePath);
}else{
Toast.makeText(this,"Cannot upload file to server",Toast.LENGTH_SHORT).show();
}
}
}
}
//android upload file to server
public int uploadFile(final String selectedFilePath){
int serverResponseCode = 0;
HttpURLConnection connection;
DataOutputStream dataOutputStream;
String lineEnd = "\r\n";
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{
FileInputStream fileInputStream = new FileInputStream(selectedFile);
URL url = new URL(SERVER_URL);
connection = (HttpURLConnection) url.openConnection();
connection.setDoInput(true);//Allow Inputs
connection.setDoOutput(true);//Allow Outputs
connection.setUseCaches(false);//Don't use a cached Copy
connection.setRequestMethod("POST");
connection.setRequestProperty("Connection", "Keep-Alive");
connection.setRequestProperty("ENCTYPE", "multipart/form-data");
connection.setRequestProperty("Content-Type", "multipart/form-data;boundary=" + boundary);
connection.setRequestProperty("uploaded_file",selectedFilePath);
//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(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);
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.\n\n You can see the uploaded file here: \n\n" + "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();
}
dialog.dismiss();
return serverResponseCode;
}
}
}
答案 0 :(得分：0)
您可以使用：
boolean fileUploadWithStringData(Context context,String uriPart,Map<String, String> textParams) {
try {
HttpParams params = new BasicHttpParams();
params.setParameter(CoreProtocolPNames.PROTOCOL_VERSION,
HttpVersion.HTTP_1_1);
int timeoutConnection = 60*1000;
HttpConnectionParams.setConnectionTimeout(params, timeoutConnection);
int timeoutSocket = 90*1000;
HttpConnectionParams.setSoTimeout(params, timeoutSocket);
DefaultHttpClient httpclient = new DefaultHttpClient(params);
Object response = null;
MultipartEntityBuilder builder = MultipartEntityBuilder.create();
builder.setMode(HttpMultipartMode.BROWSER_COMPATIBLE);
// Add text params
Iterator<String> keys = textParams.keySet().iterator();
while (keys.hasNext()) {
String key = keys.next();
String value = textParams.get(key);
builder.addTextBody(key, value, ContentType.TEXT_PLAIN);
}
String filePathOnDisc = textParams.get("pathOnDisk");
// Add file param
Uri uri = Uri.parse(filePathOnDisc);
File file = new File(filePathOnDisc);
if(!file.exists())
return true;
builder.addPart("uploadFile", new FileBody(file));
uriPart=addJSessionToURI(context,uriPart);
HttpPost httppost = new HttpPost("http://" + serverURL + uriPart);
httppost.setEntity(builder.build());
ResponseHandler<JsonArray> responseHandler = new ResponseHandler<JsonArray>(){
@Override
public JsonArray handleResponse(HttpResponse response)
throws ClientProtocolException, IOException {
int status = response.getStatusLine().getStatusCode();
if (status >= 200 && status < 300) {
System.out.println("Image Upload Success");
return new JsonArray();
}
else{
return null;
}
}
};
response = httpclient.execute(httppost, responseHandler);
if(response!=null)
return true;
if(response==null)
return false;
}
catch (SocketTimeoutException e)
{
e.printStackTrace();
System.out.println("Socket connection time out");
return false;
// return fileUpload( context, uriPart, textParams);
}
catch(ConnectTimeoutException ex){
ex.printStackTrace();
System.out.println("ConnectTimeoutException");
//return fileUpload( context, uriPart, textParams);
return false;
}
catch (Exception e)
{
System.out.println(" exception "+e.toString());
Log.e("",""+e.toString());
e.printStackTrace();
return false;
}
return false;
}
答案 1 :(得分：0)
有一种简单的方法：向您的SERVER_URL添加GET参数：
// replace "meh" by the text from your EditText
String SERVER_URL = "http://coderefer.com/extras/UploadToServer.php?name=meh";
然后，在服务器端，在UploadToServer.php中添加一个将检索此GET参数的代码：
<?php
$photoName = filter_input(INPUT_GET, 'name');
请注意，使用GET传递数据并不是最佳方法，您需要注意编码和文本的size。