使用Ajax模仿百度搜索框的自动提示功能实例

<%@ page language="java" cOntentType="text/html; charset=UTF-8"
 pageEncoding="UTF-8"%>


 
  
  
 
 
 	
 	

 		
 		
 	
 	
 	
  

  
  
 	
 	

package com.zhuxingyi.servlet;
 
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
 
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
 
/**
 * 百度下拉框服务器端
 */
@WebServlet("/test")
public class test extends HttpServlet {
	private static final long serialVersiOnUID= 1L;
 
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		//获取前端传入的数据
		String text = request.getParameter("text");
		//我们在这里也还是向list集合中添加数据，模拟数据库的查询操作
		System.out.println(text);
		List list =new ArrayList<>();
		list.add("zhuxingyi");
		list.add("zhuwei");
		list.add("zhuyuanz");
		list.add("zhude");
		
		//将数据 转换成字符串
		String str = "";
		if(text.startsWith("z")) {
			for(int i=0;i0) {
					str+=",";
				}
				str+=list.get(i);
			}
			//将处理好的数据传回给客户端
			response.getWriter().write(str);
		}
		
	}
 
 
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		doGet(request, response);
	}
 
}