我能够将文件大小小于 1Mb 的图像上传到服务器，如果上传超过 1Mb，则会出现 OutOfMemory 错误。我已经使用 BitmapFactory 来解码文件，但仍然无法上传大图像文件。
12-15 22:33:51.465: E/AndroidRuntime(11968): java.lang.OutOfMemoryError
12-15 22:33:51.465: E/AndroidRuntime(11968): at android.graphics.BitmapFactory.nativeDecodeStream(Native Method)
12-15 22:33:51.465: E/AndroidRuntime(11968): at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:652)
12-15 22:33:51.465: E/AndroidRuntime(11968): at android.graphics.BitmapFactory.decodeFile(BitmapFactory.java:391)
12-15 22:33:51.465: E/AndroidRuntime(11968): at android.graphics.BitmapFactory.decodeFile(BitmapFactory.java:451)
12-15 22:33:51.465: E/AndroidRuntime(11968): at sp.com.NewProductActivity.onActivityResult(NewProductActivity.java:137)
12-15 22:33:51.465: E/AndroidRuntime(11968): at android.app.Activity.dispatchActivityResult(Activity.java:5390)
12-15 22:33:51.465: E/AndroidRuntime(11968): at android.app.ActivityThread.deliverResults(ActivityThread.java:3201)
12-15 22:33:51.465: E/AndroidRuntime(11968): at android.app.ActivityThread.handleSendResult(ActivityThread.java:3248)
12-15 22:33:51.465: E/AndroidRuntime(11968): at android.app.ActivityThread.access$1200(ActivityThread.java:140)
12-15 22:33:51.465: E/AndroidRuntime(11968): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1285)
12-15 22:33:51.465: E/AndroidRuntime(11968): at android.os.Handler.dispatchMessage(Handler.java:99)
12-15 22:33:51.465: E/AndroidRuntime(11968): at android.os.Looper.loop(Looper.java:137)
12-15 22:33:51.465: E/AndroidRuntime(11968): at android.app.ActivityThread.main(ActivityThread.java:4921)
12-15 22:33:51.465: E/AndroidRuntime(11968): at java.lang.reflect.Method.invokeNative(Native Method)
12-15 22:33:51.465: E/AndroidRuntime(11968): at java.lang.reflect.Method.invoke(Method.java:511)
12-15 22:33:51.465: E/AndroidRuntime(11968): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1027)
12-15 22:33:51.465: E/AndroidRuntime(11968): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:794)
12-15 22:33:51.465: E/AndroidRuntime(11968): at dalvik.system.NativeStart.main(Native Method)
NewProductActivity.java
public int uploadFile(final String sourceFileUri) {
String fileName = sourceFileUri;
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(sourceFileUri);
if (!sourceFile.isFile()) {
dialog.dismiss();
Log.e("uploadFile", "Source File not exist :" + imagepath);
runOnUiThread(new Runnable() {
public void run() {
messageText.setText("Source File not exist :" + imagepath);
}
});
return 0;
} else {
try {
// Edit Text
inputName = (EditText) findViewById(R.id.inputName);
inputLocation = (EditText) findViewById(R.id.inputLocation);
inputDesc = (EditText) findViewById(R.id.inputDesc);
//Radio Button
reportTypeGroup = (RadioGroup) findViewById(R.id.typeOfReport);
reportType = "";
switch (reportTypeGroup.getCheckedRadioButtonId()) {
case R.id.hazard:
reportType = "Hazard";
break;
case R.id.incident:
reportType = "Incident";
break;
default:
reportType = "Unknown";
break;
}
FileInputStream fileInputStream = new FileInputStream(sourceFile);
URL url = new URL(upLoadServerUri);
conn = (HttpURLConnection) url.openConnection();
conn.setDoInput(true); // Allow Inputs
conn.setDoOutput(true); // Allow Outputs
conn.setUseCaches(false); // Don't use a Cached Copy
// conn.setChunkedStreamingMode(1024);
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 Parameters
dos = new DataOutputStream(conn.getOutputStream());
dos.writeBytes(twoHyphens + boundary + lineEnd);
dos.writeBytes("Content-Disposition: form-data; name=\"name\""
+ lineEnd);
dos.writeBytes(lineEnd);
dos.writeBytes(inputName.getText().toString());
dos.writeBytes(lineEnd);
dos.writeBytes(twoHyphens + boundary + lineEnd);
dos.writeBytes("Content-Disposition: form-data; name=location"
+ lineEnd);
dos.writeBytes(lineEnd);
dos.writeBytes(inputLocation.getText().toString());
dos.writeBytes(lineEnd);
dos.writeBytes(twoHyphens + boundary + lineEnd);
dos.writeBytes("Content-Disposition: form-data; name=description"
+ lineEnd);
dos.writeBytes(lineEnd);
dos.writeBytes(inputDesc.getText().toString());
dos.writeBytes(lineEnd);
dos.writeBytes(twoHyphens + boundary + lineEnd);
dos.writeBytes("Content-Disposition: form-data; name=type"
+ lineEnd);
dos.writeBytes(lineEnd);
dos.writeBytes(reportType.toString());
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) {
runOnUiThread(new Runnable() {
public void run() {
String msg = "File Upload Completed.\n\n See uploaded file here : \n\n"
+ "c:/wamp/www/echo/uploads";
messageText.setText(msg);
Toast.makeText(NewProductActivity.this,
"File Upload Complete.", Toast.LENGTH_SHORT)
.show();
}
});
}
// close the streams //
fileInputStream.close();
dos.flush();
dos.close();
} catch (MalformedURLException ex) {
dialog.dismiss();
ex.printStackTrace();
runOnUiThread(new Runnable() {
public void run() {
messageText
.setText("MalformedURLException Exception : check script url.");
Toast.makeText(NewProductActivity.this,
"MalformedURLException", Toast.LENGTH_SHORT)
.show();
}
});
Log.e("Upload file to server", "error: " + ex.getMessage(), ex);
} catch (final Exception e) {
dialog.dismiss();
e.printStackTrace();
runOnUiThread(new Runnable() {
public void run() {
messageText.setText("Got Exception : "+e.toString());
Toast.makeText(NewProductActivity.this,
"Got Exception : see logcat ",
Toast.LENGTH_SHORT).show();
}
});
Log.e("Upload file to server Exception",
"Exception : " + e.getMessage(), e);
}
dialog.dismiss();
return serverResponseCode;
}
}
}
--------编辑-------- 添加以下代码后，我不再遇到 OutOfMemory 异常，它显示“上传成功”，但没有上传任何内容。
final BitmapFactory.Options options = new BitmapFactory.Options();
options.inSampleSize = 8;
Bitmap bm = BitmapFactory.decodeFile(strPath,options);
imageView.setImageBitmap(bm);
最佳答案
1. 对于内存不足错误，请将以下行添加到您的 Manifest 中文件内<application>标签-
`<application
...
android:largeHeap="true"
</application>`
2. 对于布局初始化，您的编程方式是完全错误的
inputName = (EditText) findViewById(R.id.inputName);
inputLocation = (EditText) findViewById(R.id.inputLocation);
inputDesc = (EditText) findViewById(R.id.inputDesc);
这应该在 onCreate(Bundle arg0) 中最佳实践
对于图像上传之类的过程，您必须使用 AsyncTask 例如:How can I use an Async Task to upload File并调整 bitmap 的大小文件以避免此类错误
3。对于大图像问题，您必须更改 php 服务器的设置。 默认情况下，http 请求允许在 php 服务器上上传最多 2 mb 的数据。如果您想增加上传限制，请转到您的 php 配置文件并将上传限制设置为您想要的值。
关于java - 上传图片时出现OutOfMemory异常如何解决？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/27599574/