IOUtils

package com.jjyy.util;import java.io.IOException;import java.io.InputStream;import java.io.OutputStream;public class IOUtils {private IOUtils() {}public static void In2Out(InputStream in,OutputStream out) throws IOException{byte [] bs = new byte[1024];int i = 0;while((i=in.read(bs))!=-1){out.write(bs,0,i);}}public static void close(InputStream in,OutputStream out){if(in!=null){try {in.close();} catch (IOException e) {e.printStackTrace();}finally{in = null;}}if(out!=null){try {out.close();} catch (IOException e) {e.printStackTrace();}finally{out = null;}}}}