android上傳圖片至服務器
android上傳圖片至服務器html
本實例實現了android上傳手機圖片至服務器，服務器進行保存android
服務器servlet代碼 publicvoid doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { String temp=request.getSession().getServletContext().getRealPath("/")+"temp"; //臨時目錄 System.out.println("temp="+temp); String loadpath=request.getSession().getServletContext().getRealPath("/")+"Image"; //上傳文件存放目錄 System.out.println("loadpath="+loadpath); DiskFileUpload fu =new DiskFileUpload(); fu.setSizeMax(1*1024*1024); // 設置容許用戶上傳文件大小,單位:字節 fu.setSizeThreshold(4096); // 設置最多隻容許在內存中存儲的數據,單位:字節 fu.setRepositoryPath(temp); // 設置一旦文件大小超過getSizeThreshold()的值時數據存放在硬盤的目錄 //開始讀取上傳信息 int index=0; List fileItems =null; try { fileItems = fu.parseRequest(request); System.out.println("fileItems="+fileItems); } catch (Exception e) { e.printStackTrace(); } Iterator iter = fileItems.iterator(); // 依次處理每一個上傳的文件 while (iter.hasNext()) { FileItem item = (FileItem)iter.next();// 忽略其餘不是文件域的全部表單信息 if (!item.isFormField()) { String name = item.getName();//獲取上傳文件名,包括路徑 name=name.substring(name.lastIndexOf("\\")+1);//從全路徑中提取文件名 long size = item.getSize(); if((name==null||name.equals("")) && size==0) continue; int point = name.indexOf("."); name=(new Date()).getTime()+name.substring(point,name.length())+index; index++; File fNew=new File(loadpath, name); try { item.write(fNew); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } } else//取出不是文件域的全部表單信息 { String fieldvalue = item.getString(); //若是包含中文應寫爲：(轉爲UTF-8編碼) //String fieldvalue = new String(item.getString().getBytes(),"UTF-8"); } } String text1="11"; response.sendRedirect("result.jsp?text1="+ text1); }
android客戶端代碼服務器
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); //"文件路徑：\n"+ mText1.setText(uploadFile); mText2 = (TextView) findViewById(R.id.myText3); //"上傳網址：\n"+ mText2.setText(actionUrl); /* 設置mButton的onClick事件處理 */ mButton = (Button) findViewById(R.id.myButton); mButton.setOnClickListener(new View.OnClickListener() { publicvoid onClick(View v) { uploadFile(); } }); } /* 上傳文件至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(); /* 容許Input、Output，不使用Cache */ con.setDoInput(true); con.setDoOutput(true); con.setUseCaches(false); /* 設置傳送的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); /* 設置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); /* 設置每次寫入1024bytes */ int bufferSize =1024; byte[] buffer =newbyte[bufferSize]; int length =-1; /* 從文件讀取數據至緩衝區 */ while((length = fStream.read(buffer)) !=-1) { /* 將資料寫入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內容 */ InputStream is = con.getInputStream(); int ch; StringBuffer b =new StringBuffer(); while( ( ch = is.read() ) !=-1 ) { b.append( (char)ch ); } /* 將Response顯示於Dialog */ showDialog(