急！！！安卓客户端如何实现在下载照片完成之后，在imageview的控件上显示照片
RT源码如下：
import java.io.BufferedOutputStream;
import java.io.BufferedReader;
import java.io.ByteArrayOutputStream;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.Calendar;
import java.util.Locale;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import com.example.atestinternetcamera.R;
import com.example.atestinternetcamera.R.id;
import com.example.atestinternetcamera.R.layout;
import android.app.Activity;
import android.app.DownloadManager.Request;
import android.content.ContentResolver;
import android.content.Intent;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.os.Environment;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.Toast;
import android.text.format.DateFormat;
import android.view.View;
import android.view.View.OnClickListener;
public class PhotoActivity extends Activity {
private ImageView imageView;
private Bitmap myBitmap,myBitmap2;
private Button camerabutton;
private File file =new File("/sdcard/"+"Test"+".jpg");
private String uploadFile = Environment.getExternalStorageDirectory().getAbsolutePath()+"/Test.jpg";
private String srcPath = Environment.getExternalStorageDirectory().getAbsolutePath()+"/Test.jpg";
private String actionUrl = "http://192.168.1.105:8080/ATestInternetCameraServlet/";
private Button mButton;
private Button downloadButton;
private byte[] mContent;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_photo);
imageView = (ImageView) findViewById(R.id.imageView);
camerabutton=(Button)findViewById(R.id.button1);
camerabutton.setOnClickListener(new OnClickListener() {
public void onClick(View v){
Intent getImageByCamera = new Intent("android.media.action.IMAGE_CAPTURE");
startActivityForResult(getImageByCamera, 1);
}
});
mButton = (Button) findViewById(R.id.button2);
mButton.setOnClickListener(new View.OnClickListener()
{
public void onClick(View v)
{
uploadFile();
}
});
downloadButton=(Button)findViewById(R.id.button3);
downloadButton.setOnClickListener(new View.OnClickListener()
{
public void onClick(View v)
{
downloadFile();
}
});
}
protected void onActivityResult ( int requestCode , int resultCode , Intent data )
{
super.onActivityResult(requestCode, resultCode, data);
ContentResolver resolver = getContentResolver();
if (requestCode == 1)
{
try
{file.createNewFile();
BufferedOutputStream os = new BufferedOutputStream( new FileOutputStream(file));
Bundle extras = data.getExtras();
myBitmap = (Bitmap) extras.get("data");
myBitmap.compress(Bitmap.CompressFormat.JPEG, 100, os);
os.flush();
os.close();
Toast.makeText(getApplicationContext(), "图片保存完毕，在存储卡的根目录",
Toast.LENGTH_LONG).show();
//mContent = baos.toByteArray();
} catch ( Exception e )
{
// TODO Auto-generated catch block
e.printStackTrace();
}
// 把得到的图片绑定在控件上显示
imageView.setImageBitmap(myBitmap);
}
}
/* 上传文件至Server的方法 */
private void uploadFile()
{
// String uploadUrl = "http://192.168.1.105:8080/upload_file_service/";
// String uploadUrl = "http://192.168.1.105:8080/upload_file_service/UploadServlet";
String uploadUrl = "http://192.168.1.105:8080/ATestInternetCameraServlet/CameraServlet";//上传路径
String end = "\r\n";
String twoHyphens = "--";
String boundary = "******";
try
{
URL url = new URL(uploadUrl);
HttpURLConnection httpURLConnection = (HttpURLConnection) url
.openConnection();
httpURLConnection.setDoInput(true);
httpURLConnection.setDoOutput(true);
httpURLConnection.setUseCaches(false);
httpURLConnection.setRequestMethod("POST");
httpURLConnection.setRequestProperty("Connection", "Keep-Alive");
httpURLConnection.setRequestProperty("Charset", "UTF-8");
httpURLConnection.setRequestProperty("Content-Type",
"multipart/form-data;boundary=" + boundary);
DataOutputStream dos = new DataOutputStream(httpURLConnection
.getOutputStream());
dos.writeBytes(twoHyphens + boundary + end);
dos
.writeBytes("Content-Disposition: form-data; name=\"file\"; filename=\""
+ srcPath.substring(srcPath.lastIndexOf("/") + 1)
+ "\"" + end);
dos.writeBytes(end);
FileInputStream fis = new FileInputStream(srcPath);
byte[] buffer = new byte[8192]; // 8k
int count = 0;
while ((count = fis.read(buffer)) != -1)
{
dos.write(buffer, 0, count);
}
fis.close();
dos.writeBytes(end);
dos.writeBytes(twoHyphens + boundary + twoHyphens + end);
dos.flush();
InputStream is = httpURLConnection.getInputStream();
InputStreamReader isr = new InputStreamReader(is, "utf-8");
BufferedReader br = new BufferedReader(isr);
String result = br.readLine();
Toast.makeText(this, result, Toast.LENGTH_LONG).show();//
dos.close();
is.close();
} catch (Exception e)
{
e.printStackTrace();
setTitle(e.getMessage());
}
}
private void downloadFile(){
DefaultHttpClient httpClient = new DefaultHttpClient();
String downloadurl = "http://192.168.1.105:8080/ATestInternetCameraServlet/uploadfile/Test.jpg";
HttpGet httpGet = new HttpGet(downloadurl);
try {
HttpResponse response = httpClient.execute(httpGet);
InputStream in = response.getEntity().getContent();
FileOutputStream out = new FileOutputStream(new File("/sdcard/Newfile.jpg"));
byte[] b = new byte[8192];
int len = 0;
while((len=in.read(b))!= -1){
out.write(b,0,len);
}
myBitmap2.compress(Bitmap.CompressFormat.JPEG, 100, out);
in.close();
out.close();
imageView.setImageBitmap(myBitmap);
}catch (ClientProtocolException e){
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}finally{
//httpGet. .releaseConnection();
httpClient.getConnectionManager().shutdown();
}
System.out.println("download, success!!");
}
} Android imageview 下载
补充：Java , J2ME
