insert_do.java

用mvc实现的留言板

package com.jq.servlet;

import java.io.IOException;

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 com.jq.bean.NoteJavaBean;
import com.jq.bean.NoteSqlBean;

public class Insert_do extends HttpServlet {

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

	/**
	 * 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 {

		doPost(request, response);
	}

	/**
	 * 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 {
		HttpSession session = request.getSession();
		// 进行乱码处理
		request.setCharacterEncoding("gb18030") ;

		// 接收参数
		String title = request.getParameter("title") ;
		String author = request.getParameter("authro") ;
		String content = request.getParameter("content") ;
		
		//把参数放入javaBean中
		NoteJavaBean jBean = new NoteJavaBean();
		jBean.setTitle(title);
		jBean.setAuthor(author);
		jBean.setContent(content);
		
		NoteSqlBean sBean = new NoteSqlBean();
		int count = sBean.getInsert(jBean);
		String url = "";
		if (count > 0 ) {
			url = "/list_notes.jsp";
		} else {
			url = "/error.jsp";
			session.setAttribute("error", "留言添加失败");
		}
		request.getRequestDispatcher(url).forward(request, response);
	}

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

}