JS+Ajax实现百度智能搜索框

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"%> 
 
 
 
 
 
 
 
 
 
  
 
    
 
        
       
    
 
    
 
     
 
       
 
     
 
    
 
  
 
 
 

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

以上所述是小编给大家介绍的JS+Ajax实现百度智能搜索框，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对脚本之家网站的支持！