通过URL建立连接 然后解析json

            URL url = new URL(strUrl);
            BufferedReader br = new BufferedReader(new InputStreamReader(url

            .openStream(), "UTF-8"));

            String s = "";

            StringBuffer sb = new StringBuffer("");

            while ((s = br.readLine()) != null) {


               sb.append(s);

            }

picObj = new JSONObject(homePicContent);

String picData = picObj.getString("data");

for(int i=0;i<picSize;i++){
                JSONObject picJsonObj = picjsonArray.getJSONObject(i);
                HomePicDto homePicDto = new HomePicDto();
                homePicDto.setPicPath(picJsonObj.get("picPath").toString());
                homePicDto.setLink(picJsonObj.get("link").toString());
                homePicDtoList.add(homePicDto);
            }