streamToStringUtils

package com.example.administrator.mobilesafe;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;

/**
 * Created by Administrator on 2017/8/29.
 */
public class StreamUtil {
    public static String streamToString(InputStream inputStream) {
        // 1 思路在读取过程中将读取的内容存储到缓存中 然后一次转化为字符串返回
        ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
        // 2 流操作读到没有为止(循环)
        byte[] buffer = new byte[1024];
        // 3 记录读取内容的临时变量
        int temp = -1;
        try {
           // 网络上的输入流 读入缓冲区
            while ((len = in.read(buff)) != -1) {
                // 从缓冲区写入内存
                bos.write(buff, 0, len);
            }
            return byteArrayOutputStream.toString();

        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            try {
                byteArrayOutputStream.close();
                inputStream.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    return null;
    }
}