将图像上传到服务器PHP Android
问题描述:
我现在试图将图像上传到我的服务器。我可以拍摄照片并在Android设备上获取我的位置。我有如下代码将文件上传到服务器:将图像上传到服务器PHP Android
public Boolean postFunction(File image) {
String tag = "postFunction";
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost(UPLOAD_URL);
try {
MultipartEntity entity = new MultipartEntity();
entity.addPart("type", new StringBody("photo"));
entity.addPart("data", new FileBody(image));
httppost.setEntity(entity);
HttpResponse response = httpclient.execute(httppost);
Log.i(tag, "picture was uploaded " + response.toString());
return true;
} catch (ClientProtocolException e) {
Log.e(tag, "Client: " + e.toString());
return false;
} catch (IOException e) {
Log.e(tag, "IO: " + e.toString());
return false;
}
}
我的图像文件通过这个功能,它的上传。然而,错误在于我相信服务器端。
这是我的PHP代码:
public function upload() {
//$type = $this->input->post('type');
//$data = $this->input->post('data');
$base = $_REQUEST['data'];
echo $base;
// base64 encoded utf-8 string
$binary = base64_decode($base);
// binary, utf-8 bytes
header('Content-Type: bitmap; charset=utf-8');
// print($binary);
//$theFile = base64_decode($image_data);
$file = fopen('./test.jpg', 'wb');
fwrite($file, $binary);
fclose($file);
echo '<img src=test.jpg>';
}
的文件被感动,但仍保持空白。我在这里错过了什么吗?请帮忙,我尝试了谷歌搜索,但想出了不同的结果,这并没有多大帮助。
答
你可以检查一个非常好的教程here。
也可以尝试下面的代码,
public class TryprojectActivity extends Activity {
InputStream is;
int pic_count = 0;
Bitmap bitmap=null;
FileInputStream in1,in2,in3;
BufferedInputStream buf;
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.main);
try {
in1 = new FileInputStream("/sdcard/1.jpg");
}
catch (FileNotFoundException e2) {
// TODO Auto-generated catch block
e2.printStackTrace();
}
try {
in2 = new FileInputStream("/sdcard/2.jpg");
} catch (FileNotFoundException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
try {
in3 = new FileInputStream("/sdcard/3.jpg");
}
catch (FileNotFoundException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
Bitmap bitmapOrg1 = BitmapFactory.decodeStream(in1);
ByteArrayOutputStream bao1 = new ByteArrayOutputStream();
bitmapOrg1.compress(Bitmap.CompressFormat.JPEG, 90, bao1);
byte [] imagearray1 = bao1.toByteArray();
String ba1=Base64.encode(imagearray1);
Bitmap bitmapOrg2 = BitmapFactory.decodeStream(in2);
ByteArrayOutputStream bao2 = new ByteArrayOutputStream();
bitmapOrg2.compress(Bitmap.CompressFormat.JPEG, 90, bao2);
byte [] imagearray2 = bao2.toByteArray();
String ba2=Base64.encode(imagearray2);
Bitmap bitmapOrg3 = BitmapFactory.decodeStream(in3);
ByteArrayOutputStream bao3 = new ByteArrayOutputStream();
bitmapOrg3.compress(Bitmap.CompressFormat.JPEG, 90, bao3);
byte [] imagearray3 = bao3.toByteArray();
String ba3=Base64.encode(imagearray3);
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(3);
nameValuePairs.add(new BasicNameValuePair("image1",ba1));
nameValuePairs.add(new BasicNameValuePair("image2",ba2));
nameValuePairs.add(new BasicNameValuePair("image3",ba3));
try{
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost("http://helpdesk.cispl.com/upload_file.php");
UrlEncodedFormEntity obj = new UrlEncodedFormEntity(nameValuePairs);
obj.setChunked(true);
httppost.setEntity(obj);
HttpResponse response = httpclient.execute(httppost);
HttpEntity entity = response.getEntity();
//is = entity.getContent();
httpclient.getConnectionManager().shutdown();
}
catch(Exception e){
//CommonFunctions.writeLOG(ctx.getClass().toString(), e.toString());
//CommonFunctions.showToast(ctx, "Unable to post captured image file: " +
//e.toString());
}
}
答
如果您在基于UNIX的平台上运行的Apache/PHP的,请确保您的Apache服务器有写的权限,它试图以存储文件的目录(根据您当前的代码,PHP脚本所在的同一目录)。作为快速测试,请在脚本所在的目录中执行chmod 0777 .
,然后查看上传的图像是否显示正确。