数据流InputStream转字符串

public static String ScreamToString(InputStream in) throws Exception{//定义一个内存输出流ByteArrayOutputStream out = new ByteArrayOutputStream();int len=0;byte[] bt=new byte[1024];while((len=in.read(bt))!=-1){out.write(bt,0,len);}String content=new String(out.toByteArray());//使用构造函数的原因是//还可以通过new String(out.toByteArray(),"utf-8")来设置编码return content;}