http://www.fedex.com/Tracking?clienttype=dotcomreg&ascend_header=1&cntry_code=cn&language=sim&mi=n&tracknumbers=874589732820在上面網(wǎng)址中最后874589732820為每次抓取要替換的參數(shù)package ups.test;import java.io.BufferedReader;import java.io.InputStreamReader;import java.io.OutputStreamWriter;import java.net.HttpURLConnection;import java.net.URL;public class Test {public String getPageContent(String strUrl, String strPostRequest,int maxLength) {         // 讀取結(jié)果網(wǎng)頁(yè)         StringBuffer buffer = new StringBuffer();         System.setProperty("sun.net.client.defaultConnectTimeout", "5000");         System.setProperty("sun.net.client.defaultReadTimeout", "5000");         try {         URL newUrl = new URL(strUrl);         HttpURLConnection hConnect = (HttpURLConnection) newUrl.openConnection();         // POST方式的額外數(shù)據(jù)         if (strPostRequest.length() > 0) {         hConnect.setDoOutput(true);         OutputStreamWriter out = new OutputStreamWriter(hConnect.getOutputStream());         out.write(strPostRequest);         out.flush();         out.close();         }         // 讀取內(nèi)容         BufferedReader rd = new BufferedReader(new InputStreamReader(hConnect.getInputStream(),"utf-8"));         int ch;         for (int length = 0; (ch = rd.read()) > -1 && (maxLength <= 0 || length < maxLength); length++)         buffer.append((char) ch);         String s = buffer.toString();         s.replaceAll("//&[a-zA-Z]{1,10};", "").replaceAll("<[^>]*>", "");         System.out.println(s);         rd.close();         hConnect.disconnect();         return buffer.toString().trim();         } catch (Exception e) {          return "錯(cuò)誤:讀取網(wǎng)頁(yè)失?。?quot;;         //         } }}package ups.test;public class Test1 {public static void main(String[] args) {     String url = "http://www.fedex.com/Tracking?clienttype=dotcomreg&ascend_header=1&cntry_code=cn&language=sim&mi=n&tracknumbers=874589732820";     Test p = new Test();     p.getPageContent(url, "post", 100500);     System.out.print("已經(jīng)執(zhí)行！");     }}現(xiàn)在能夠抓取到網(wǎng)頁(yè)的所有代碼，但需要貨件托運(yùn)歷史中里面的信息：日期/時(shí)間 活動(dòng) 地點(diǎn) 詳細(xì)信息 不知道怎么提取 求指導(dǎo)