实例介绍
【实例简介】
【实例截图】
【实例截图】
【核心代码】
package com.hexiaochun; import java.io.ByteArrayOutputStream; import java.io.File; import java.util.ArrayList; import java.util.List; import org.apache.http.HttpEntity; import org.apache.http.HttpResponse; import org.apache.http.NameValuePair; import org.apache.http.client.HttpClient; import org.apache.http.client.entity.UrlEncodedFormEntity; import org.apache.http.client.methods.HttpPost; import org.apache.http.impl.client.DefaultHttpClient; import org.apache.http.message.BasicNameValuePair; import org.apache.http.util.EntityUtils; import com.hexiaochun.utils.Base64Coder; import com.hexiaochun.utils.ZoomBitmap; import android.app.Activity; import android.app.ProgressDialog; import android.content.Intent; import android.database.Cursor; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.net.Uri; import android.os.Bundle; import android.os.Environment; import android.os.Handler; import android.os.Message; import android.provider.MediaStore; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.ImageView; public class MainActivity extends Activity implements OnClickListener { // 服务器地址 private static final String HOST = "http://192.168.1.243:8080/ImageServer/upServer"; // 显示图片 private ImageView image; // 两个but private Button take; private Button selete; // 记录文件名 private String filename; // 上传的bitmap private Bitmap upbitmap; private Button up; //多线程通信 private Handler myHandler; private ProgressDialog myDialog; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); image = (ImageView) this.findViewById(R.id.imageView1); take = (Button) this.findViewById(R.id.take); selete = (Button) this.findViewById(R.id.selete); up=(Button)this.findViewById(R.id.up); take.setOnClickListener(this); selete.setOnClickListener(this); up.setOnClickListener(this); myHandler=new MyHandler(); } public void onClick(View v) { Intent intent; switch (v.getId()) { case R.id.take: intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); filename = "xiaochun" System.currentTimeMillis() ".jpg"; System.out.println(filename); // 下面这句指定调用相机拍照后的照片存储的路径 intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(new File( Environment.getExternalStorageDirectory(), filename))); startActivityForResult(intent, 1); break; case R.id.selete: intent = new Intent(Intent.ACTION_PICK, null); intent.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, "image/*"); startActivityForResult(intent, 2); break; case R.id.up: myDialog = ProgressDialog.show(this, "Loading...", "Please wait...", true, false); new Thread(new Runnable() { public void run() { upload(); myHandler.sendMessage(new Message()); } }).start(); break; default: break; } } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { // TODO Auto-generated method stub switch (requestCode) { case 1: //解成bitmap,方便裁剪 Bitmap bitmap=BitmapFactory.decodeFile(Environment. getExternalStorageDirectory().getPath() "/" filename); float wight=bitmap.getWidth(); float height=bitmap.getHeight(); // ZoomBitmap.zoomImage(bitmap, wight/8, height/8); image.setImageBitmap(ZoomBitmap.zoomImage(bitmap, wight/8, height/8)); upbitmap=ZoomBitmap.zoomImage(bitmap, wight/8, height/8); break; case 2: if(data!=null){ image.setImageURI(data.getData()); System.out.println(getAbsoluteImagePath(data.getData())); upbitmap=BitmapFactory.decodeFile(getAbsoluteImagePath(data.getData())); //剪一下,防止测试的时候上传的文件太大 upbitmap=ZoomBitmap.zoomImage(upbitmap, upbitmap.getWidth()/8, upbitmap.getHeight()/8); } break; default: break; } } // 取到绝对路径 protected String getAbsoluteImagePath(Uri uri) { // can post image String[] proj = { MediaStore.Images.Media.DATA }; Cursor cursor = managedQuery(uri, proj, // Which columns to return null, // WHERE clause; which rows to return (all rows) null, // WHERE clause selection arguments (none) null); // Order-by clause (ascending by name) int column_index = cursor .getColumnIndexOrThrow(MediaStore.Images.Media.DATA); cursor.moveToFirst(); return cursor.getString(column_index); } // 上传 public void upload() { ByteArrayOutputStream stream = new ByteArrayOutputStream(); upbitmap.compress(Bitmap.CompressFormat.JPEG, 60, stream); byte[] b = stream.toByteArray(); // 将图片流以字符串形式存储下来 String file = new String(Base64Coder.encodeLines(b)); HttpClient client = new DefaultHttpClient(); // 设置上传参数 List<NameValuePair> formparams = new ArrayList<NameValuePair>(); formparams.add(new BasicNameValuePair("file", file)); HttpPost post = new HttpPost(HOST); UrlEncodedFormEntity entity; try { entity = new UrlEncodedFormEntity(formparams, "UTF-8"); post.addHeader("Accept", "text/javascript, text/html, application/xml, text/xml"); post.addHeader("Accept-Charset", "GBK,utf-8;q=0.7,*;q=0.3"); post.addHeader("Accept-Encoding", "gzip,deflate,sdch"); post.addHeader("Connection", "Keep-Alive"); post.addHeader("Cache-Control", "no-cache"); post.addHeader("Content-Type", "application/x-www-form-urlencoded"); post.setEntity(entity); HttpResponse response = client.execute(post); System.out.println(response.getStatusLine().getStatusCode()); HttpEntity e = response.getEntity(); System.out.println(EntityUtils.toString(e)); if (200 == response.getStatusLine().getStatusCode()) { System.out.println("上传完成"); } else { System.out.println("上传失败"); } client.getConnectionManager().shutdown(); } catch (Exception e) { e.printStackTrace(); } } private class MyHandler extends Handler{ @Override public void handleMessage(Message msg) { myDialog.dismiss(); } } }
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