kaoshi(Utils读取)

package com.example.kaoshi;import java.io.ByteArrayOutputStream;import java.io.InputStream;/** * Created by 北城 on 2017/7/26. */public class Utils {    public static String read(InputStream is)throws Exception{        ByteArrayOutputStream bao = new ByteArrayOutputStream();        byte[] bytes = new byte[1024];        int len = 0;        while ((len = is.read(bytes)) != -1){            bao.write(bytes,0,len);        }        is.close();        bao.close();        return bao.toString();    }}