實現將圖片經過WebServer上傳

一、原理

Android拍照將圖片上傳至服務器，其過程能夠分爲，1：將拍照的圖片以64位的字節流形式存在；2：發佈接收64位字節流並將字節流轉換成圖片的方法；三、訪問發佈的WebServer,實現圖片的上傳。

二、圖片轉爲64位字節流

一、選擇相機拍照和本地相冊

調用相機拍照

   paizhao.setOnClickListener(new paizhaoOnclick());

   bendi.setOnClickListener(new bendiOnclick());

 public class paizhaoOnclick implements View.OnClickListener{

        @Override

        public void onClick(View v) {

            //Intent intent =new Intent("android.media.action.IMAGE_CAPTURE");

            Intent intent =new Intent(MediaStore.ACTION_IMAGE_CAPTURE);

            //startActivityForResult(intent, Activity.DEFAULT_KEYS_DIALER);

            startActivityForResult(intent, 1000);

        }

    }

選擇本地相冊

 public class bendiOnclick implements View.OnClickListener{

        @Override

        public void onClick(View v) {

            Intent intent=new Intent(Intent.ACTION_GET_CONTENT);

            intent.setType("image/*");

            intent.putExtra("crop",true);

            intent.putExtra("return-data",true);

            startActivityForResult(intent,1001);

        }

    }

 protected void onActivityResult(int requestCode, int resultCode, Intent data) {

        super.onActivityResult(requestCode, resultCode, data);

        if (requestCode==1000&&resultCode==RESULT_OK){

            String sdStatus= Environment.getExternalStorageState();

            if (!sdStatus.equals(Environment.MEDIA_MOUNTED))

            {

                return;

            }

            Bundle bundle=data.getExtras();

            Bitmap bitmap=(Bitmap)bundle.get("data");

            FileOutputStream b=null;

            File file=new File("/sdcard/myImage/");

            file.mkdirs();

            String str=null;

            Date date=null;

            SimpleDateFormat format =new SimpleDateFormat("yyyyMMddHHmmss");

            date=new Date();

            str=format.format(date);

            filename="/sdcard/myImage/"+str+".png";

            try{

                b=new FileOutputStream(filename);

                bitmap.compress(Bitmap.CompressFormat.PNG,100,b);

            }

            catch(Exception e)

            {

            }

            finally {

                try

                {

                    b.flush();

                    b.close();

                }

                catch(Exception e)

                {

                }

                if(data!=null)

                {

                    Bundle extras=data.getExtras();

                    Bitmap camerabitmap=(Bitmap)extras.get("data");

                    imageView.setImageBitmap(camerabitmap);

                }

            }

        }

        else if (requestCode==1001&&resultCode==RESULT_OK){

            Uri uri= data.getData();

            //獲取遊標

            ContentResolver resolver =getContentResolver();

            try {

                Bitmap bitmap= BitmapFactory.decodeStream(resolver.openInputStream(uri));

                imageView.setImageBitmap(bitmap);

            }

            catch (Exception e){

                e.printStackTrace();

            }

        }

        //將圖片轉爲字節流

    }

圖片轉爲64位字節流的方法

 public String picturezijie(String filename){

        byte[]byte1=null;

        ByteArrayOutputStream byteArrayOutputStream=new ByteArrayOutputStream();

        try{

            FileInputStream fileInputStream=new FileInputStream(filename);

            byte[]buttfer=new byte[1024*10*1024];

            int len=0;

            while ((len=fileInputStream.read(buttfer))>=0)

            {

                byteArrayOutputStream.write(buttfer,0,len);

            }

            byte1=byteArrayOutputStream.toByteArray();

            String imagebuffer= Base64.encodeToString(byte1,Base64.NO_WRAP);

            byteArrayOutputStream.close();

            fileInputStream.close();

            return imagebuffer;

        }

        catch (Exception e)

        {

            return "";

        }

    }

三、服務器端接收

使用VS2013編寫服務器接收64字節流文件並轉換成圖片存儲的格式PNG、JPG等。

 /// <summary>

    /// WebService1 的摘要說明

    /// </summary>

    [WebService(Namespace = "http://***.***.***.**/")]

    [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]

    [System.ComponentModel.ToolboxItem(false)]

    // 若要容許使用 ASP.NET AJAX 從腳本中調用此 Web 服務，請取消註釋如下行。

    // [System.Web.Script.Services.ScriptService]

    public class WebService1 : System.Web.Services.WebService

    {

        [WebMethod]

        public string UpImage(String dataURL,String path,String imgname)

        {

            //dataURL base64數據

            //path 保存路徑

            //imgname圖片名字

            //string類型的相對路徑

            String filename = "";

            //將，之前的多餘字符串刪除

            String base64 = dataURL.Substring(dataURL.IndexOf(",")+1);

            //定義一個Bitmap對象，接受轉換完成的圖片

            System.Drawing.Bitmap bitmap = null;

            try

            {

                //把純淨的Base64的資源給Inputstring

                String inputString = base64;

                //將Base64轉換成等效的8位的無符號整形數組

                byte[] arr = Convert.FromBase64String(inputString);

                //轉換成沒法調整大小的MemoryStream對象

                System.IO.MemoryStream ms = new System.IO.MemoryStream(arr);

                //將MemoryStream對象轉換成Bitmap對象

                System.Drawing.Bitmap bmp = new System.Drawing.Bitmap(ms);

                //關閉資源

                ms.Close();

                bitmap = bmp;

                //所要保存的相對路徑及名字

                filename = path + "/TJH_" + imgname + ".png";

                //獲取程序根目錄

                string tmpRootDir = Server.MapPath(System.Web.HttpContext.Current.Request.ApplicationPath.ToString());

                //轉換成絕對路徑

                string imagesurl2 = tmpRootDir + filename.Replace(@"/", @"\");

                //保存到服務器路徑

                bitmap.Save(imagesurl2, System.Drawing.Imaging.ImageFormat.Png);

            }

            catch (Exception) {

            }

               //返回相對路徑

                return filename;

        }

    }

四、將方法發佈成WebServer

這裏就不詳細講述WebServer發佈的過程，你們能夠參考發佈

五、調用發佈的服務

使用KSoap2調用上傳照片的方法。

        @Override

        public void onClick(View v) {

            String  bytereturn=picturezijie(filename);

            System.out.println("64位的字節流---------》》》》"+ bytereturn);

            String filename1="486";

            String path=null;

            SoapObject request = new SoapObject(NAMESPACE, METHON_NAME);

            request.addProperty("dataURL", bytereturn);

function(){ //外匯點差http://www.kaifx.cn/question/kaifx/1765.html

            request.addProperty("path", path);

            request.addProperty("imgname", filename1);

            SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);

            envelope.dotNet = true;

            envelope.bodyOut = request;

            envelope.setOutputSoapObject(request);

            HttpTransportSE httpTransportSE = new HttpTransportSE(URL);

            httpTransportSE.debug = true;

            try

            {

                httpTransportSE.call(SOAP_ACTION, envelope);

            }

            catch (Exception e)

            {

                e.printStackTrace();

            }

            SoapObject object = (SoapObject) envelope.bodyIn;

            String result = object.getProperty(0).toString();

            System.out.println("上傳輸出------------》》》"+result);

            Toast.makeText(getApplicationContext(),"上傳成功",Toast.LENGTH_SHORT).show();

        }

    }