java调用外部接口

Java调用外部接口的方法，最终返回接口return的信息

        String strURL = "这里是你要调用的接口地址";        URL url = new URL(strURL);        HttpURLConnection httpConn = (HttpURLConnection)                url.openConnection();        httpConn.setRequestMethod("GET");        httpConn.connect();        BufferedReader reader = new BufferedReader(new InputStreamReader(                httpConn.getInputStream()));        String line;        StringBuffer buffer = new StringBuffer();        while ((line = reader.readLine()) != null) {            buffer.append(line);        }        reader.close();        httpConn.disconnect();        System.out.println(buffer.toString());

最终这里buffer.toString();就是接口return的值