现在遇到这样的需求，要求输入一个a之后会出现包含a的下拉列表，当我们点击某一个的时候，搜索框中就会出现点击的值。下面小编给大家分享同js和ajax实现百度智能搜索框，需要的的朋友参考下实现代码
首先浏览实现后的结果，输入一个a之后会出现包含a的下拉列表，当我们点击某一个的时候，搜索框中就会出现点击的值。实现所需要的主要是ajax+js。
前端search.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>Insert title here
后台searchServlet.Java
package search; import java.io.IOException; import java.util.ArrayList; import java.util.List; import net.sf.json.JSONArray; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; /** * Servlet implementation class searchServlet */ @WebServlet("/searchServlet") public class searchServlet extends HttpServlet { private static final long serialVersionUID = 1L; static List datas=new ArrayList(); static {//假数据，模拟数据库读取 datas.add("ajax"); datas.add("bjax"); datas.add("ajaxfd"); datas.add("bfvd"); datas.add("dafdx"); datas.add("fdax"); datas.add("ahg"); datas.add("ddx"); } /** * @see HttpServlet#HttpServlet() */ public searchServlet() { super(); // TODO Auto-generated constructor stub } /** * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response) */ protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // TODO Auto-generated method stub doPost(request, response); } /** * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response) */ protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // TODO Auto-generated method stub request.setCharacterEncoding("UTF-8"); response.setCharacterEncoding("UTF-8"); String keyword=request.getParameter("keyword"); //System.out.println(keyword); List listdata= getData(keyword); // 返回json,以流的形式写到前台 response.getWriter().write(JSONArray.fromObject(listdata).toString()); } //获取假数据中符合条件的值 public List getData(String keyword) { List list=new ArrayList(); for(String data:datas) { if(data.contains(keyword)){ list.add(data); } } return list; } } xml配置
searchServlet search.searchServlet searchServlet /search/searchServlet DropMeum index.html index.htm index.jsp default.html default.htm default.jsp 目录结构
总结
以上就是JS+Ajax实现百度智能搜索框的详细内容，更多请关注0133技术站其它相关文章！
