bloglist.java

来自「博客管理系统。安装说明： 1、在SQLSERVER中创建blog数据库并创建登」· Java 代码 · 共 68 行

package huc.blog.servlet;

import huc.blog.bean.User;
import huc.blog.op.BlogOp;
import huc.blog.util.PageObject;
import huc.blog.util.ParamUtils;

import java.io.IOException;
import java.util.List;

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

public class BlogList extends HttpServlet {

	private static final long serialVersionUID = 1L;

	/**
	 * 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 {
		
		User user = (User)ParamUtils.getObjectAttribute(request.getSession(), "loginUser", null);
        String userid = ParamUtils.getParameter(request, "userid", "");
		
		if(user == null || !user.getId().equals(userid)){
			response.sendRedirect("../");
		}
		else{
			int pageNo = ParamUtils.getParameter(request, "pageNo", 1);
			BlogOp blogOp = new BlogOp();
			PageObject page = new PageObject();
			page.setPageSize(10);
			page.setPageNo(pageNo);
			page = blogOp.getPage(page, " and a.userid = '" + user.getId() + "'", "  order by publishTime asc");
			
			request.setAttribute("page", page);
			request.getRequestDispatcher("../bloglist.jsp").forward(request, response);
		}
	}

}