4069bef11d40001d1bbeb58f3f6dcbed

自己做的一个火车票售票网站是课程设计 用的是servlet+jsp 数据库是ms

package com.servlet;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class LoginAjaxServlet extends HttpServlet {
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		PrintWriter out = response.getWriter();
		response.setContentType("text/html;charset=utf-8");
		String name=(String)request.getParameter("name");
		com.ajax.Ajax op = new com.ajax.Ajax();
		if (op.getMessage3(name)){
			out.print("用户名已经被占用");
		}
		else{
			out.print("ok");
		}
		
	}
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		this.doGet(request, response);
	}

}