根据isbn查询图书信利用豆瓣的API

String apikey = "111111111111111111111111111111"; String isbnUrl = "http://api.douban.com/book/subject/isbn/"; public static void main(String[] args) throws Exception { //requestUrl = isbnUrl + isbnNo + "?apikey=" + apikey; //eg:http://api.douban.com/book/subject/isbn/9787111298854?apikey=111111111111111111114 ISBN isbnTest = new ISBN(); String isbnNo = "9787111298854"; String xml = isbnTest.fetchBookInfoByXML(isbnNo); System.out.println(xml); } /** * 从根据isbn号从豆瓣获取数据。已经申请apikey，每分钟最多40次请求，足够用。 * @param isbnNo * @return * @throws IOException */ public String fetchBookInfoByXML(String isbnNo) throws IOException { String requestUrl = isbnUrl + isbnNo + "?apikey=" + apikey; URL url = new URL(requestUrl); URLConnection conn = url.openConnection(); InputStream is = conn.getInputStream(); InputStreamReader isr = new InputStreamReader(is, "utf-8"); BufferedReader br = new BufferedReader(isr); StringBuilder sb = new StringBuilder(); String line = null; while ((line = br.readLine()) != null) { sb.append(line); } br.close(); return sb.toString(); }