java http请求接口返回值乱码

返回值编码格式设置为utf-8

public static String load(JSONObject query,String type,String methodName) throws Exception
	{
		String url = "http://localhost:"+port+adminPath+"/management/interfaceController/"+methodName;
		URL restURL = new URL(url);
		/*
		 * 此处的urlConnection对象实际上是根据URL的请求协议(此处是http)生成的URLConnection类 的子类HttpURLConnection
		 */
		HttpURLConnection conn = (HttpURLConnection) restURL.openConnection();
		//请求方式
		conn.setRequestMethod(type);
		//设置是否从httpUrlConnection读入，默认情况下是true; httpUrlConnection.setDoInput(true);
		conn.setDoOutput(true);
		//allowUserInteraction 如果为 true，则在允许用户交互（例如弹出一个验证对话框）的上下文中对此 URL 进行检查。
		conn.setAllowUserInteraction(false);
		
		PrintStream ps = new PrintStream(conn.getOutputStream());
//		username=admin&password=admin&mobileLogin=true
		String param = "";
		if(query != null) {
			Set<String> set = query.keySet();
			for (String key : set) {
				String val = query.getString(key);
				param += key+"="+val+"&";
			}
		}
		if(!StringUtils.isEmpty(param)) {
			param.substring(0, param.length()-1);
		}
		ps.print(param);
		
		ps.close();
		
		BufferedReader bReader = new BufferedReader(new InputStreamReader(conn.getInputStream(),"UTF-8"));
		
		String line,resultStr="";
		
		while(null != (line=bReader.readLine()))
		{
			resultStr +=line;
		}
		bReader.close();
		
		return resultStr;
		
	}