HttpUrlConnection使用方法封装工具类

public class NewsUtils {

    private static Context context;

    public static String call(Context mContext,String urlName,String methodName,String keyName){
        context=mContext;
        String NewUrl=urlName;
        if(methodName=="GET"){
            NewUrl=urlName+"?"+keyName;
        }

        StringBuffer result=new StringBuffer();

        try {
            URL url=new URL(NewUrl);
            HttpURLConnection connection= (HttpURLConnection) url.openConnection();

            connection.setRequestMethod(methodName);

            if(methodName.equals("POST")){
                connection.setDoInput(true);
                connection.setDoOutput(true);

                DataOutputStream dataOutputStream=new
                        DataOutputStream(connection.getOutputStream());
                dataOutputStream.writeBytes(keyName);
                dataOutputStream.flush();
                dataOutputStream.close();


            }
            connection.connect();

            if(HttpURLConnection.HTTP_OK==connection.getResponseCode()){

                InputStream inputStream = connection.getInputStream();


                BufferedReader bufferedReader=new BufferedReader(new InputStreamReader(inputStream));

                String  line=null;
                while((line=bufferedReader.readLine())!=null){

                    result.append(line);

                }




            }


        } catch (Exception e) {
            e.printStackTrace();
        }


        return result.toString();
    }



}