modifyblog.java

这是jsp网站开发死酷全书的代码

package cn.wanfeng.myblog.servlet;

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

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

import cn.wanfeng.myblog.dao.BlogDao;
import cn.wanfeng.myblog.dto.Blog;
import cn.wanfeng.myblog.dto.BlogPk;
import cn.wanfeng.myblog.exceptions.BlogDaoException;
import cn.wanfeng.myblog.factory.BlogDaoFactory;

public class ModifyBlog extends HttpServlet {

	/**
	 * Constructor of the object.
	 */
	public ModifyBlog() {
		super();
	}

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

	/**
	 * 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 {

		String Username=request.getParameter("username");
		String Subject=request.getParameter("subject");
		String Name=request.getParameter("name");
		String Email=request.getParameter("email");
		String Description=request.getParameter("description");
		BlogDao dao = BlogDaoFactory.create();
		Blog dto=new Blog();
		BlogPk pk=new BlogPk(1);
		dto.setUsername(Username);
		dto.setUsernameModified(true);
		dto.setSubject(Subject);
		dto.setSubjectModified(true);
		dto.setEmail(Email);
		dto.setEmailModified(true);
		dto.setDescription(Description);
		dto.setDescriptionModified(true);
		dto.setPasswordModified(false);
		try {
			dao.update(pk,dto);
		} catch (BlogDaoException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		RequestDispatcher requestDispatcher = this.getServletContext().getRequestDispatcher("/Success.jsp");
		requestDispatcher.forward(request, response);	
	}

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

}