上传图片到服务器
http://www.cnblogs.com/gzggyy/archive/2011/08/02/2125237.html
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http://blog.163.com/gobby_1110/blog/static/2928171520121745553942/
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publicclass PhotoUpload extends Activity { private String newName ="image.jpg"; private String uploadFile ="/sdcard/image.JPG"; private String actionUrl ="http://192.168.0.71:8086/HelloWord/myForm"; private TextView mText1; private TextView mText2; private Button mButton; @Override publicvoid onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.photo_upload); mText1 = (TextView) findViewById(R.id.myText2); //"文件路径：\n"+ mText1.setText(uploadFile); mText2 = (TextView) findViewById(R.id.myText3); //"上传网址：\n"+ mText2.setText(actionUrl); /* 设置mButton的onClick事件处理 */ mButton = (Button) findViewById(R.id.myButton); mButton.setOnClickListener(new View.OnClickListener() { publicvoid onClick(View v) { uploadFile(); } }); } /* 上传文件至Server的方法 */ privatevoid uploadFile() { String end ="\r\n"; String twoHyphens ="--"; String boundary ="*****"; try { URL url =new URL(actionUrl); HttpURLConnection con=(HttpURLConnection)url.openConnection(); /* 允许Input、Output，不使用Cache */ con.setDoInput(true); con.setDoOutput(true); con.setUseCaches(false); /* 设置传送的method=POST */ con.setRequestMethod("POST"); /* setRequestProperty */ con.setRequestProperty("Connection", "Keep-Alive"); con.setRequestProperty("Charset", "UTF-8"); con.setRequestProperty("Content-Type", "multipart/form-data;boundary="+boundary); /* 设置DataOutputStream */ DataOutputStream ds = new DataOutputStream(con.getOutputStream()); ds.writeBytes(twoHyphens + boundary + end); ds.writeBytes("Content-Disposition: form-data; "+ "name="file1";filename=""+ newName +"""+ end); ds.writeBytes(end); /* 取得文件的FileInputStream */ FileInputStream fStream =new FileInputStream(uploadFile); /* 设置每次写入1024bytes */ int bufferSize =1024; byte[] buffer =newbyte[bufferSize]; int length =-1; /* 从文件读取数据至缓冲区 */ while((length = fStream.read(buffer)) !=-1) { /* 将资料写入DataOutputStream中 */ ds.write(buffer, 0, length); } ds.writeBytes(end); ds.writeBytes(twoHyphens + boundary + twoHyphens + end); /* close streams */ fStream.close(); ds.flush(); /* 取得Response内容 */ InputStream is = con.getInputStream(); int ch; StringBuffer b =new StringBuffer(); while( ( ch = is.read() ) !=-1 ) { b.append( (char)ch ); } /* 将Response显示于Dialog */ showDialog("上传成功"+b.toString().trim()); /* 关闭DataOutputStream */ ds.close(); } catch(Exception e) { showDialog("上传失败"+e); } } /* 显示Dialog的method */ privatevoid showDialog(String mess) { new AlertDialog.Builder(PhotoUpload.this).setTitle("Message") .setMessage(mess) .setNegativeButton("确定",new DialogInterface.OnClickListener() { publicvoid onClick(DialogInterface dialog, int which) { } }) .show(); } }?