这是我的活动代码，我使用asynctask来上传文件，我只是传递了图像路径数组。它还显示了其他一些数组，请检查错误日志中的其他错误。
private class ServiceSync extends AsyncTask<ArrayList<String>, Integer, List<String>> {
private String res;
private String boundary;
private String LINE_FEED = "\r\n";
private Context context;
private HttpURLConnection httpConn;
private String charset = "UTF-8";
;
private OutputStream outputStream;
private PrintWriter writer;
ProgressDialog mProgressDialog;
String requestURL = "URL";
int count;
@Override
protected void onPreExecute() {
res = null;
count = 0;
//mProgressDialog = ProgressDialog.show(Create_NewsFeed.this, "","Uploading image");
mProgressDialog = new ProgressDialog(Create_NewsFeed.this);
mProgressDialog.setMessage("Posting.. please wait...");
mProgressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
mProgressDialog.setMax(100);
// mProgressDialog.show();
try {
// creates a unique boundary based on time stamp
boundary = "===" + System.currentTimeMillis() + "===";
URL url = new URL(requestURL);
httpConn = (HttpURLConnection) url.openConnection();
httpConn.setUseCaches(false);
httpConn.setDoOutput(true); // indicates POST method
httpConn.setDoInput(true);
httpConn.setRequestProperty("Content-Type",
"multipart/form-data; boundary=" + boundary);
httpConn.setRequestProperty("User-Agent", "CodeJava Agent");
httpConn.setRequestProperty("Test", "Bonjour");
outputStream = httpConn.getOutputStream();
writer = new PrintWriter(new OutputStreamWriter(outputStream, charset),
true);
writer.append("User-Agent" + ": " + "CodeJava").append(LINE_FEED);
writer.flush();
writer.append("Test-Header" + ": " + "Header-Value").append(LINE_FEED);
writer.flush();
} catch (Exception e) {
}
}
@Override
protected List<String> doInBackground(ArrayList<String>... imgPaths) {
try {
// Start parameter
addFormField("user_id", imgPaths[1].get(0)); //pass user_id
addFormField("description", imgPaths[1].get(1)); //pass description
addFormField("post_date", "1"); //pass user_id
addFormField("post_type", imgPaths[1].get(2)); //pass user_id
addFormField("price", "1000"); //pass user_id
//End parameter
File sourceFile[] = new File[imgPaths[0].size()];
for (int i = 0; i < imgPaths[0].size(); i++) {
sourceFile[i] = new File(imgPaths[0].get(i));
}
for (int i = 0; i < imgPaths[0].size(); i++) {
addFilePart("uploaded_file[]", sourceFile[i]);
count++;
}
return multipartfinish();
} catch (Exception e) {
}
return null;
}
@Override
protected void onProgressUpdate(Integer... values) {
super.onProgressUpdate(values);
mProgressDialog.setProgress(values[0]);
}
@Override
protected void onPostExecute(List<String> ress) {
try {
if (ress == null) {
mProgressDialog.dismiss();
Toast.makeText(getApplicationContext(), "Failed to upload files", Toast.LENGTH_SHORT).show();
}
if (ress.size() > 0) {
for (int i = 0; i < ress.size(); i++) {
Toast.makeText(getApplicationContext(), ress.get(i), Toast.LENGTH_SHORT).show();
}
}
mProgressDialog.dismiss();
Intent i = new Intent(Create_NewsFeed.this,NewsFeed.class);
startActivity(i);
finish();
} catch (Exception objEx) {
objEx.printStackTrace();
}
mProgressDialog.dismiss();
}
public void addFilePart(String fieldName, File uploadFile)
throws IOException {
SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyyMMddhhmmss");
String ext = uploadFile.getName().substring(uploadFile.getName().lastIndexOf(".") + 1);
String fileName = simpleDateFormat.format(new Date()) + count + "." + ext;
// String fileName = uploadFile.getName();
writer.append("--" + boundary).append(LINE_FEED);
writer.append(
"Content-Disposition: form-data; name=\"" + fieldName
+ "\"; filename=\"" + fileName + "\"")
.append(LINE_FEED);
writer.append(
"Content-Type: "
+ URLConnection.guessContentTypeFromName(fileName))
.append(LINE_FEED);
writer.append("Content-Transfer-Encoding: binary").append(LINE_FEED);
writer.append(LINE_FEED);
writer.flush();
FileInputStream inputStream = new FileInputStream(uploadFile);
Bitmap bitmap = BitmapFactory.decodeStream(inputStream);
ByteArrayOutputStream stream = new ByteArrayOutputStream();
if (ext.equals("png")) {
bitmap.compress(Bitmap.CompressFormat.PNG, 30, stream); //compress to which format you want.
} else {
bitmap.compress(Bitmap.CompressFormat.JPEG, 30, stream); //compress to which format you want.
}
// byte [] buffer = stream.toByteArray();
InputStream in = new ByteArrayInputStream(stream.toByteArray());
int totalfilesize = in.available();
byte[] buffer = new byte[4096];
int bytesRead = -1;
int bytesend = 0;
while ((bytesRead = in.read(buffer)) != -1) {
int progress = (int) ((bytesend / (float) totalfilesize) * 100);
bytesend += bytesRead;
if (bytesRead <= totalfilesize) {
outputStream.write(buffer, 0, bytesRead);
}
publishProgress(progress);
}
outputStream.flush();
inputStream.close();
writer.append(LINE_FEED);
writer.flush();
}
public void addFormField(String name, String value) {
writer.append("--" + boundary).append(LINE_FEED);
writer.append("Content-Disposition: form-data; name=\"" + name + "\"")
.append(LINE_FEED);
writer.append("Content-Type: text/plain; charset=" + charset).append(
LINE_FEED);
writer.append(LINE_FEED);
writer.append(value).append(LINE_FEED);
writer.flush();
}
public List<String> multipartfinish() throws IOException {
List<String> response = new ArrayList<String>();
writer.append(LINE_FEED).flush();
writer.append("--" + boundary + "--").append(LINE_FEED);
writer.close();
// checks server's status code first
int status = httpConn.getResponseCode();
if (status == HttpURLConnection.HTTP_OK) {
BufferedReader reader = new BufferedReader(new InputStreamReader(
httpConn.getInputStream()));
String line = null;
while ((line = reader.readLine()) != null) {
response.add(line);
}
writer.print("");
writer.flush();
reader.close();
httpConn.disconnect();
} else {
throw new IOException("Server returned non-OK status: " + status);
}
return response;
}
}
这是我的logcat，我在Bitmap bitmap = BitmapFactory.decodeStream（inputStream）上得到了错误;这条线，不知道出了什么问题，请帮帮我。
10-08 13:02:24.745 13450-13454/fourever.textile D/dalvikvm﹕ GC_CONCURRENT freed 1582K, 13% free 52794K/60295K, paused 12ms+15ms, total 69ms
10-08 13:02:25.435 13450-14845/fourever.textile D/dalvikvm﹕ GC_FOR_ALLOC freed 492K, 13% free 52542K/60295K, paused 34ms, total 34ms
10-08 13:02:25.435 13450-14845/fourever.textile I/dalvikvm-heap﹕ Forcing collection of SoftReferences for 7680016-byte allocation
10-08 13:02:25.485 13450-14845/fourever.textile D/dalvikvm﹕ GC_BEFORE_OOM freed 10K, 13% free 52532K/60295K, paused 49ms, total 49ms
10-08 13:02:25.485 13450-14845/fourever.textile E/dalvikvm-heap﹕ Out of memory on a 7680016-byte allocation.
10-08 13:02:25.485 13450-14845/fourever.textile I/dalvikvm﹕ "AsyncTask #3" prio=5 tid=21 RUNNABLE
10-08 13:02:25.485 13450-14845/fourever.textile I/dalvikvm﹕ | group="main" sCount=0 dsCount=0 obj=0x423b7c98 self=0x5d07d078
10-08 13:02:25.485 13450-14845/fourever.textile I/dalvikvm﹕ | sysTid=14845 nice=10 sched=0/0 cgrp=apps/bg_non_interactive handle=1616684464
10-08 13:02:25.485 13450-14845/fourever.textile I/dalvikvm﹕ | schedstat=( 70530999 15854792 28 ) utm=6 stm=1 core=0
10-08 13:02:25.485 13450-14845/fourever.textile I/dalvikvm﹕ at android.graphics.BitmapFactory.nativeDecodeStream(Native Method)
10-08 13:02:25.490 13450-14845/fourever.textile I/dalvikvm﹕ at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:663)
10-08 13:02:25.490 13450-14845/fourever.textile I/dalvikvm﹕ at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:735)
10-08 13:02:25.490 13450-14845/fourever.textile I/dalvikvm﹕ at fourever.textile.mainclasses.Create_NewsFeed$ServiceSync.addFilePart(Create_NewsFeed.java:545)
10-08 13:02:25.490 13450-14845/fourever.textile I/dalvikvm﹕ at fourever.textile.mainclasses.Create_NewsFeed$ServiceSync.doInBackground(Create_NewsFeed.java:481)
10-08 13:02:25.490 13450-14845/fourever.textile I/dalvikvm﹕ at fourever.textile.mainclasses.Create_NewsFeed$ServiceSync.doInBackground(Create_NewsFeed.java:411)
10-08 13:02:25.495 13450-14845/fourever.textile I/dalvikvm﹕ at android.os.AsyncTask$2.call(AsyncTask.java:287)
10-08 13:02:25.495 13450-14845/fourever.textile I/dalvikvm﹕ at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305)
10-08 13:02:25.495 13450-14845/fourever.textile I/dalvikvm﹕ at java.util.concurrent.FutureTask.run(FutureTask.java:137)
10-08 13:02:25.495 13450-14845/fourever.textile I/dalvikvm﹕ at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230)
10-08 13:02:25.495 13450-14845/fourever.textile I/dalvikvm﹕ at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076)
10-08 13:02:25.495 13450-14845/fourever.textile I/dalvikvm﹕ at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569)
10-08 13:02:25.500 13450-14845/fourever.textile I/dalvikvm﹕ at java.lang.Thread.run(Thread.java:856)
10-08 13:02:25.500 13450-14845/fourever.textile I/dalvikvm﹕ [ 10-08 13:02:25.500 13450:14845 D/skia ]
--- decoder->decode returned false
10-08 13:02:25.500 13450-14845/fourever.textile W/dalvikvm﹕ threadid=21: thread exiting with uncaught exception (group=0x40de72a0)
10-08 13:02:25.515 13450-14845/fourever.textile E/AndroidRuntime﹕ FATAL EXCEPTION: AsyncTask #3
java.lang.RuntimeException: An error occured while executing doInBackground()
at android.os.AsyncTask$3.done(AsyncTask.java:299)
at java.util.concurrent.FutureTask$Sync.innerSetException(FutureTask.java:273)
at java.util.concurrent.FutureTask.setException(FutureTask.java:124)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:307)
at java.util.concurrent.FutureTask.run(FutureTask.java:137)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569)
at java.lang.Thread.run(Thread.java:856)
Caused by: java.lang.OutOfMemoryError
at android.graphics.BitmapFactory.nativeDecodeStream(Native Method)
at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:663)
at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:735)
at fourever.textile.mainclasses.Create_NewsFeed$ServiceSync.addFilePart(Create_NewsFeed.java:545)
at fourever.textile.mainclasses.Create_NewsFeed$ServiceSync.doInBackground(Create_NewsFeed.java:481)
at fourever.textile.mainclasses.Create_NewsFeed$ServiceSync.doInBackground(Create_NewsFeed.java:411)
at android.os.AsyncTask$2.call(AsyncTask.java:287)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305)
at java.util.concurrent.FutureTask.run(FutureTask.java:137)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569)
at java.lang.Thread.run(Thread.java:856)
10-08 13:02:36.530 13450-13450/fourever.textile I/Choreographer﹕ Skipped 623 frames! The application may be doing too much work on its main thread.
10-08 13:02:36.630 13450-13450/fourever.textile D/SensorManager﹕ unregisterListener:: Trklfufi 9 budiwrd5mrfo5WirfulblrwuFmfulTrklfufi$KfukwiFmfulTrklfufiRvht@,)+be:*(
10-08 13:02:36.630 13450-13450/fourever.textile D/Sensors﹕ Remain listener = Sending .. normal delay 200ms
10-08 13:02:36.630 13450-13450/fourever.textile I/Sensors﹕ sendDelay --- 200000000
10-08 13:02:36.630 13450-13450/fourever.textile D/SensorManager﹕ JNI - sendDelay
10-08 13:02:36.630 13450-13450/fourever.textile I/SensorManager﹕ Set normal delay = true
答案 0 :(得分：1)
有几种方法可以解决这个问题。首先，您可以使用其他颜色方案或其他比例加载图像。请注意，你会失去一些品质。
BitmapFactory.Options options = new BitmapFactory.Options();
//swt the color scheme to something less memory consuming
options.inPreferredConfig = Config.RGB_565;
//scale the image by factor 2
options.inSampleSize = 2;
Bitmap bitmap = BitmapFactory.decodeStream(stream, null, options);
另见this page。
您可以做的另一件事是为应用启用大堆大小，您可以在manifest中添加
android:largeHeap="true"
到application代码。
答案 1 :(得分：0)
您正在主线程上执行网络操作。将您的网络请求代码放在doInBackGround()而不是OnPreExecute()中。
并检查图像的大小，这可能是问题的原因。
答案 2 :(得分：0)
请在文件上传类中添加以下行：
httpConn.setChunkedStreamingMode(1024);
您可以根据设备堆大小修改1024大小
有关详细信息，请参阅此链接：
http://technet.weblineindia.com/mobile/upload-large-video-on-server-using-multipart-in-android/