如何解决android php乱码问题

result= EntityUtils.toString(httpResponse.getEntity())，HTTP.UTF_8);
result=new String( EntityUtils.toString(httpResponse.getEntity()).getBytes("ISO_8859_1"),HTTP.UTF_8);

//通过流获取具体的内容
in = httpResponse.getEntity().getContent();
//创建缓冲区
BufferedReader br = new BufferedReader(new InputStreamReader(in));
sb = new StringBuffer();
String line = null;
while((line = br.readLine())!= null){
 sb.append(line);
}
result=sb.toString();