2013.07.22（2）——— android 验证码与cookie
验证码图片与cookie对应，注册时需要把验证码以及cookie传回服务器，这里就需要在获取验证码图片时 得到cookie，并且注册时传回cookie
1、得到cookie
//加载验证码 private class LoadVcodeThread implements Runnable{ private Handler handler; public LoadVcodeThread(Handler handler){ this.handler = handler; } @Override public void run() { if(Constant.isNetConnect){ int count = 0; while(isRunningVcode){ String url = Constant.vcode_url; HttpClient client = new DefaultHttpClient(); HttpGet get = new HttpGet(url); HttpResponse response; final String fileName = "vcode.png"; String cookies = ""; FileOutputStream fileOutputStream = null; try { response = client.execute(get); Header bean = response.getLastHeader("Set-Cookie"); cookies = bean.getValue(); HttpEntity entity = response.getEntity(); InputStream is = entity.getContent(); File file = null; String root = null; if (is != null) { root = UtilFile.getFolderPath(UtilFile.DIR_VERIFY); file = new File(root+"/"+fileName); if(file.exists()){ file.delete(); } fileOutputStream = new FileOutputStream(file); byte[] buf = new byte[1024]; int ch = -1; while ((ch = is.read(buf)) != -1) { fileOutputStream.write(buf, 0, ch); } } fileOutputStream.flush(); final String filePath = file.getAbsolutePath(); BitmapFactory.Options options=new BitmapFactory.Options(); options.inJustDecodeBounds=true;//只得到图片大小信息 不分配内存 options.inPreferredConfig = Bitmap.Config.RGB_565; Bitmap tempBitmap=BitmapFactory.decodeFile(filePath, options); int scale=(int)(options.outWidth/UtilManager.getInstance()._utilPhone.getPxFromDip(80)); options.inJustDecodeBounds=false; if(scale > 1){ options.inSampleSize=scale;//设置缩放级别 } tempBitmap = BitmapFactory.decodeFile(filePath, options); if(tempBitmap==null){ file.deleteOnExit(); if(count==3){ isRunningVcode = false; handler.sendEmptyMessage(MSG_REGIST_VCODE_FAIL); }else{ count++; } }else{ isRunningVcode = false; Message msg = new Message(); msg.what = MSG_REGIST_VCODE_SUC; Object [] tArr = {tempBitmap, cookies}; msg.obj = tArr; handler.sendMessage(msg); } } catch (Exception e) { e.printStackTrace(); } } }else{ } } }2、传回cookie
public static String queryStringForGet(String url, String cookies){ HttpGet request = UtilHttp.getHttpGet(url);// BasicHeader tHeader = new BasicHeader("Set-Cookie", cookies);// request.setHeader(tHeader); request.setHeader("Cookie", cookies); UtilLog.log(TAG, "url: "+url + ", cookies: " + cookies); try { return getResult(request); }catch(ConnectTimeoutException e){ e.printStackTrace();// queryStringForGet(url); }catch(SocketTimeoutException e){ e.printStackTrace();// queryStringForGet(url); }catch (Exception e) { e.printStackTrace(); } return null; }