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/** 
 * 通過Base32將Bitmap轉(zhuǎn)換成Base64字符串 
 * @param bit 
 * @return 
 */ 
public String Bitmap2StrByBase64(Bitmap bit){ 
  ByteArrayOutputStream bos=new ByteArrayOutputStream(); 
  bit.compress(CompressFormat.JPEG, 40, bos);//參數(shù)100表示不壓縮 
  byte[] bytes=bos.toByteArray(); 
  return Base64.encodeToString(bytes, Base64.DEFAULT); 
} 

public static String host = "http://192.168.1.166:8080/ImageServer/"; 
 
public static String getContent(String url) throws Exception { 
 
  StringBuilder sb = new StringBuilder(); 
 
  HttpClient client = new DefaultHttpClient(); 
  HttpParams httpParams = client.getParams(); 
  // 設(shè)置網(wǎng)絡(luò)超時參數(shù) 
  HttpConnectionParams.setConnectionTimeout(httpParams, 3000); 
 
  HttpConnectionParams.setSoTimeout(httpParams, 5000); 
  HttpResponse response = client.execute(new HttpGet(url)); 
  HttpEntity entity = response.getEntity(); 
  if (entity != null) { 
    BufferedReader reader = new BufferedReader(new InputStreamReader( 
        entity.getContent(), "UTF-8"), 8192); 
 
    String line = null; 
    while ((line = reader.readLine()) != null) { 
      sb.append(line + "\n"); 
    } 
    reader.close(); 
 
  } 
 
  return sb.toString(); 
} 
public static HttpResponse post(Map params, String url) { 
 
  HttpClient client = new DefaultHttpClient(); 
  HttpPost httpPost = new HttpPost(url); 
  httpPost.addHeader("charset", HTTP.UTF_8); 
  httpPost.setHeader("Content-Type", 
      "application/x-www-form-urlencoded; charset=utf-8"); 
  HttpResponse response = null; 
  if (params != null && params.size() > 0) { 
    List nameValuepairs = new ArrayList(); 
    for (String key : params.keySet()) { 
      nameValuepairs.add(new BasicNameValuePair(key, (String) params 
          .get(key))); 
    } 
    try { 
      httpPost.setEntity(new UrlEncodedFormEntity(nameValuepairs, 
          HTTP.UTF_8)); 
      response = client.execute(httpPost); 
    } catch (UnsupportedEncodingException e) { 
      e.printStackTrace(); 
    } catch (ClientProtocolException e) { 
      e.printStackTrace(); 
    } catch (IOException e) { 
      e.printStackTrace(); 
    } catch (RuntimeException e) { 
      e.printStackTrace(); 
    } 
  } else { 
    try { 
      response = client.execute(httpPost); 
    } catch (ClientProtocolException e) { 
      e.printStackTrace(); 
    } catch (IOException e) { 
      e.printStackTrace(); 
    } 
  } 
 
  return response; 
 
} 
public static Object getValues(Map params, String url) { 
  String token = ""; 
  HttpResponse response = post(params, url); 
  if (response != null) { 
    try { 
      token = EntityUtils.toString(response.getEntity()); 
      response.removeHeaders("operator"); 
    } catch (ParseException e) { 
      e.printStackTrace(); 
    } catch (IOException e) { 
      e.printStackTrace(); 
    } 
  } 
  return token; 
} 
public static Object setImgByStr(String imgStr,String imgName){ 
  String url = host+"channel-uploadImage.action"; 
  Map params = new HashMap(); 
  params.put("imgStr", imgStr); 
  params.put("imgName", imgName); 
  return getValues(params, url); 
} 

public void uploadPhoto() { 
  //獲取存儲路徑 
  HttpServletRequest request = ServletActionContext.getRequest(); 
  String path = ServletActionContext.getServletContext().getRealPath("/")+"upload"; 
  File file = new File(path); 
  if(!file.exists()){ 
    file.mkdir(); 
  } 
  String imgPath = path + request.getParameter("imgName"); 
  String imgStr = request.getParameter("imgStr"); 
  boolean flag = string2Image(imgStr, imgPath); 
  JacksonUtil.responseJSON(response, flag); 
} 

/** 
 * 通過BASE64Decoder解碼，并生成圖片 
 * @param imgStr 解碼后的string 
 */ 
public boolean string2Image(String imgStr, String imgFilePath) { 
  // 對字節(jié)數(shù)組字符串進行Base64解碼并生成圖片 
  if (imgStr == null) 
    return false; 
  try { 
    // Base64解碼 
    byte[] b = new BASE64Decoder().decodeBuffer(imgStr); 
    for (int i = 0; i < b.length; ++i) { 
      if (b[i] < 0) { 
        // 調(diào)整異常數(shù)據(jù) 
        b[i] += 256; 
      } 
    } 
    // 生成Jpeg圖片 
    OutputStream out = new FileOutputStream(imgFilePath); 
    out.write(b); 
    out.flush(); 
    out.close(); 
    return true; 
  } catch (Exception e) { 
    return false; 
  } 
}