📄 googleservlet.java
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package myGoogle; import java.io.IOException; import java.io.PrintWriter; import javax.servlet.*;import javax.servlet.http.*;public class GoogleServlet extends HttpServlet { public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, java.io.IOException { doGet(request, response); } //end doGet public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException,java.io.IOException{ //支持中文输入的内容 request.setCharacterEncoding("GB2312"); String query = request.getParameter("query"); String restrict = request.getParameter("restrict"); boolean isValid = (query == null || query.length() < 1) ? false : true; //set the MIME type of the response, "text/html" response.setContentType("text/html"); //支持中文输出内容 response.setCharacterEncoding("GB2312"); //use a PrintWriter send text data to the client who has requested the servlet java.io.PrintWriter out = response.getWriter(); //Begin assembling the HTML content out.println("<html><head>"); out.println("<title>查询结果</title></head><body>"); if (! isValid){ out.println("<h2>查询关键字不能为空</h2>"); } else { //使用JavaBean处理查询 GoogleBean gb = new GoogleBean(); gb.setFilter(true); //设置分行的HTML标记 gb.setLineSep("<br/>"); if (restrict != null && restrict.length() > 0) gb.setRestrict(restrict); gb.setQuery(query); //输出查询结果到返回页面 out.println("<h2>查询结果如下：</h2>"); try { out.println( gb.getSearchResults()); } catch (Exception e){ throw new ServletException( e.getMessage() ); } } out.println("</body></html>"); out.close(); }// doPost}//HttpServlet⌨️ 快捷键说明
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