我正在尝试在单击按钮时上传图像文件。我为 iOS 使用了相同的 php 脚本,它似乎工作正常。我添加了用于上传文件的代码。我怀疑我没有正确传递图像文件路径。我实际上添加了保存图像文件的方法。我只是将其保存为“sign.jpeg”。我没有看到按钮单击上的图像指向 uploadfile(View view) 方法。
public void uploadFile(View view) {
try {
upload("sign.jpeg");
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
实现文件上传的方法
public void upload(String selectedPath) throws IOException {
HttpURLConnection connection = null;
DataOutputStream outputStream = null;
DataInputStream inputStream = null;
String pathToOurFile = selectedPath;
String urlServer = "http://localhost:8888/uploadJava.php";
String lineEnd = "\r\n";
String twoHyphens = "--";
String boundary = "*****";
int bytesRead, bytesAvailable, bufferSize;
byte[] buffer;
int maxBufferSize = 1 * 1024 * 1024;
try {
FileInputStream fileInputStream = new FileInputStream(new File(
pathToOurFile));
URL url = new URL(urlServer);
connection = (HttpURLConnection) url.openConnection();
connection.setDoInput(true);
connection.setDoOutput(true);
connection.setUseCaches(false);
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\";name=\""
+ "sign.jpeg" + "\"" + lineEnd);
outputStream.writeBytes(lineEnd);
bytesAvailable = fileInputStream.available();
bufferSize = Math.min(bytesAvailable, maxBufferSize);
buffer = new byte[bufferSize];
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);
/*int serverResponseCode = connection.getResponseCode();
String serverResponseMessage = connection.getResponseMessage();*/
BufferedReader in = new BufferedReader(
new InputStreamReader(
connection.getInputStream()));
String inputLine;
while ((inputLine = in.readLine()) != null)
System.out.println(inputLine);
fileInputStream.close();
outputStream.flush();
outputStream.close();
} catch (Exception ex) {
}
}
php脚本上传文件
<?php
$target_path = "./images/";
$target_path = $target_path . basename($_FILES['uploadedfile']['name']);
error_log("Upload File >>" . $target_path . $_FILES['error'] . " \r\n", 3,
"Log.log");
error_log("Upload File >>" . basename($_FILES['uploadedfile']['name']) . " \r\n",
3, "Log.log");
if (move_uploaded_file($_FILES['uploadedfile']['tmp_name'], $target_path)) {
echo "The file " . basename($_FILES['uploadedfile']['name']) .
" has been uploaded";
} else {
echo "There was an error uploading the file, please try again!";
}
?>
裁剪后保存从相机拍摄的照片
PictureCallback mPicture = new PictureCallback() {
@Override
public void onPictureTaken(byte[] data, Camera camera) {
InputStream is = new ByteArrayInputStream(data);
Bitmap bmp = BitmapFactory.decodeStream(is);
bmp = Bitmap.createBitmap(bmp, 50, 200, bmp.getWidth() - 200, bmp.getHeight()/2);
saveImage("sign.jpeg", bmp, getApplicationContext());
try {
FileOutputStream fos;
fos= openFileOutput(fileName,Context.MODE_PRIVATE);
System.out.println(data);
fos.write(data);
fos.close();
} catch (Exception e) {
e.printStackTrace();
}*/
finish();
//releaseCamera();
}
};
图像保存方法
private void saveImage(String filename, Bitmap b, Context ctx){
try {
ObjectOutputStream oos;
FileOutputStream out;// = new FileOutputStream(filename);
out = ctx.openFileOutput(filename, Context.MODE_PRIVATE);
oos = new ObjectOutputStream(out);
b.compress(Bitmap.CompressFormat.PNG, 100, oos);
oos.close();
oos.notifyAll();
out.notifyAll();
out.close();
} catch (Exception e) {
e.printStackTrace();
}
}
是的,在 AndroidManifest.xml 中添加了 Internet 权限,如下所示
<uses-permission android:name="android.permission.INTERNET"/>
知道上面的代码有什么问题吗?