android上傳圖片至服務(wù)器 轉(zhuǎn).docx

android上傳圖片至服務(wù)器 轉(zhuǎn) 本實(shí)例實(shí)現(xiàn)了android上傳手機(jī)圖片至服務(wù)器，服務(wù)器進(jìn)行保存服務(wù)器servlet代碼public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException String temp=request.getSession().getServletContext().getRealPath(/)+temp; /臨時(shí)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(shè)置允許用戶上傳文件大小,單位:字節(jié) fu.setSizeThreshold(4096); / 設(shè)置最多只允許在內(nèi)存中存儲的數(shù)據(jù),單位:字節(jié) fu.setRepositoryPath(temp); / 設(shè)置一旦文件大小超過getSizeThreshold()的值時(shí)數(shù)據(jù)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(); / 依次處理每個(gè)上傳的文件 while (iter.hasNext() FileItem item = (FileItem)iter.next();/ 忽略其他不是文件域的所有表單信息 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 /取出不是文件域的所有表單信息 String fieldvalue = item.getString(); /如果包含中文應(yīng)寫為：(轉(zhuǎn)為UTF-8編碼) /String fieldvalue = new String(item.getString().getBytes(),UTF-8); String text1=11; response.sendRedirect(result.jsp?text1= + text1); 復(fù)制代碼android客戶端代碼public class PhotoUpload extends Activity private String newName = image.jpg; private String uploadFile = /sdcard/image.JPG; private String actionUrl = 1:8086/HelloWord/myForm; private TextView mText1; private TextView mText2; private Button mButton; Override public void 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(wǎng)址：n+ mText2.setText(actionUrl); /* 設(shè)置mButton的onClick事件處理 */ mButton = (Button) findViewById(R.id.myButton); mButton.setOnClickListener(new View.OnClickListener() public void onClick(View v) uploadFile(); ); /* 上傳文件至Server的方法 */ private void uploadFile() String end = rn; String twoHyphens = -; String boundary = *; try URL url =new URL(actionUrl); HttpURLConnection con=(HttpURLConnection)url.openConnection(); /* 允許Input、Output，不使用Cache */ con.setDoInput(true); con.setDoOutput(true); con.setUseCaches(false); /* 設(shè)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(shè)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(shè)置每次寫入1024bytes */ int bufferSize = 1024; byte buffer = new bytebufferSize; int length = -1; /* 從文件讀取數(shù)據(jù)至緩沖區(qū) */ 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(nèi)容 */ InputStream is = con.getInputStream(); int ch; StringBuffer b =new StringBuffer(); while( ( ch = is.read() ) != -1 ) b.append( (char)ch ); /* 將Response顯示于Dialog */ showDialog(上傳成功+b.toString().trim(); /* 關(guān)閉DataOutputStream */ ds.close(); catch(Exception e) showDialog(上傳失敗+e); /* 顯示Dialog的method */ private void showDialog(String mess