仿google自动补全 检索建议

package com.digitalchina.google.servlet; import java.io.IOException; import java.io.PrintWriter; import java.util.List; import java.util.Vector; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; public class GoogleServlet extends HttpServlet { List<String> users = new Vector<String>(); public void init() throws ServletException { users.add("神"); users.add("神马"); users.add("浮云"); users.add("神马都是浮云"); users.add("坑爹"); users.add("我勒个去"); } public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { String input_value = request.getParameter("input_value"); System.out.println("input_value: " + input_value); // 转码 String msg = new String(input_value.getBytes("ISO-8859-1"), "UTF-8"); System.out.println("msg: " + msg); response.setContentType("text/heml;charset=utf-8"); PrintWriter out = response.getWriter(); StringBuffer sb = new StringBuffer(); for (String user : users) { if (user.startsWith(msg)) { sb.append(user + ","); } } System.out.println("sb: "+sb); out.print(sb); out.close(); } }