updateuserinfoservlet.java

该系统具体分为2个部分：前台和后台。 1．前台主要用于用户进行浏览和搜索

package ynuServlet;


import java.io.IOException;

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

import ynuBean.UpdatePesticideBean;
import ynuBean.UserInfoBean;

public class UpdateUserInfoServlet extends HttpServlet {
	public void init()throws ServletException
    {
    	
    }
    
    public void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException
    {
    	sendsql(request,response);
    }
    
    public void sendsql(HttpServletRequest request, HttpServletResponse response)
    throws ServletException,IOException
    {  	  
    	HttpSession session = request.getSession();   	
    	
    	//从视图层得到传入参数
    	String username = (String)session.getAttribute("username");
    	String realname = request.getParameter("realname");
    	String email = request.getParameter("email");
    	String accountNum = request.getParameter("accountnum");
        	
    	if(username!=null&& !username.equals(""))
    	{
    		executeSql(request,response,username,realname,email,accountNum);
    	}
    	else
    	{
    		session.invalidate();
    	}
        
    }
	
    public void executeSql(HttpServletRequest request, HttpServletResponse response,
    	String username,String realname,String email,String accountNum)
                  throws ServletException,IOException 
    {
    	HttpSession session = request.getSession();
        String toJsp = "/editindividual.jsp";
        
        //调用模型层
        UserInfoBean aBean = new UserInfoBean();
        //操作数据
        String msg = aBean.updateUserInfo(username, realname, email, accountNum);
    	
        //设置返回消息
        session.setAttribute("message4", msg);
        
        //自动跳转到视图层
    	RequestDispatcher dispatcher = request.getRequestDispatcher(toJsp);	
    	//dispatcher = request.getRequestDispatcher(toJsp);   	
    	response.setHeader("Refresh", "0.1; URL=/PesticideInfoManagement"+toJsp+"");
    	dispatcher.forward(request, response);
    }	
    
    //Process the HTTP Post request
    public void doPost(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException
    {
        doGet(request, response);
    }
}