StreamToString 帮助类

package animtest.com.example.e531.week2_10month.Utils;

import java.io.BufferedReader;

import java.io.InputStream;

import java.io.InputStreamReader;

/**

 * Created by e531 on 2017/10/12.

 */

public class StreamToString {

    public static String streamToStr(InputStream inputStream,String chartSet){

        StringBuilder builder=new StringBuilder();

        try {

            BufferedReader br=new BufferedReader(new InputStreamReader(inputStream,chartSet));

            String con;

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

                builder.append(con);

            }

            br.close();

            return builder.toString();

        } catch (Exception e) {

            e.printStackTrace();

        }

        return "";

    }

}