addmessages.java

本文为hibernate中多对多关系实例

package org.myhiber;

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 Addmessages extends HttpServlet {

	/**
	 * Destruction of the servlet. <br>
	 */
	public void destroy() {
		super.destroy(); // Just puts "destroy" string in log
		// Put your code here
	}

	/**
	 * The doGet method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to get.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		Student stu1=new Student();
		stu1.setStuname("lp");
		Student stu2=new Student();
		stu2.setStuname("xiaxia");
		
		Teacher tea1=new Teacher();
		tea1.setTeaname("tea1");
		Teacher tea2=new Teacher();
		tea2.setTeaname("tea2");
		
		stu1.getTeachers().add(tea1);
		stu1.getTeachers().add(tea2);
		stu2.getTeachers().add(tea1);
		stu2.getTeachers().add(tea2);
		
		StuDAO dao=new StuDAO();
		dao.save(stu1);
		dao.save(stu2);
		
	}

	/**
	 * The doPost method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to post.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		doGet(request,response);
	}

	/**
	 * Initialization of the servlet. <br>
	 *
	 * @throws ServletException if an error occure
	 */
	public void init() throws ServletException {
		// Put your code here
	}

}