modifymasterservlet.java

新闻发布系统的雏形

package com.kjlm.servlet;

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.kjlm.beans.Master;
import com.kjlm.beans.MasterMgr;

/**
 * Servlet implementation class for Servlet: ModifyMasterServlet
 *
 */
 public class ModifyMasterServlet extends javax.servlet.http.HttpServlet implements javax.servlet.Servlet {
    /* (non-Java-doc)
	 * @see javax.servlet.http.HttpServlet#HttpServlet()
	 */
	public ModifyMasterServlet() {
		super();
	}   	
	
	/* (non-Java-doc)
	 * @see javax.servlet.http.HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
	}  	
	
	/* (non-Java-doc)
	 * @see javax.servlet.http.HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		request.setCharacterEncoding("gbk");
		int id = Integer.parseInt(request.getParameter("id"));
		String  username = request.getParameter("username"); 
		String  password = request.getParameter("password");
		String  category = request.getParameter("category");
		Master master = new Master();
		master.setId(id);
		master.setUsername(username);
		master.setPassword(password);
		master.setMgrCategory(category);
		
		MasterMgr masterMgr = new MasterMgr();
		Boolean flag = masterMgr.exist(master);
		if(flag){
			response.sendRedirect("modifymaster.jsp");
		}else{
			masterMgr.modify(master);
			response.sendRedirect("modifymastersuccess.jsp");
		}
	}   	  	    
}