spider之中需要使用多線程去抓取網頁,本來還有點疑惑,沒想到在jsp中使用多線程也很方便。
String site1 = request.getParameter("site1");
String site2 = request.getParameter("site2");
String site3 = request.getParameter("site2");
Spider crawler = new Spider(site1, 20);
//Thread search = new Thread(crawler);
System.out.println("Start!");
System.out.println("result:");
//search.start();
crawler.start();
Spider crawler1 = new Spider(site2, 20);
crawler1.start();
Spider crawler2 = new Spider(site3, 20);
crawler2.start();