getphotoservlet.java

来自「jsp + servlete + jdbc开的管理系统」· Java 代码 · 共 58 行

package hbu.david.cmc.servlet;

import java.io.IOException;

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

import hbu.david.cmc.bean.*;
import hbu.david.cmc.dao.*;
import hbu.david.cmc.http.ServletEncoding;
import hbu.david.cmc.util.*;
import hbu.david.cmc.work.*;
import java.util.*;
/**
 * Servlet implementation class for Servlet: GetPhotoServlet
 *
 */
 public class GetPhotoServlet extends javax.servlet.http.HttpServlet implements javax.servlet.Servlet {
   static final long serialVersionUID = 1L;
   
    /* (non-Java-doc)
	 * @see javax.servlet.http.HttpServlet#HttpServlet()
	 */
	public GetPhotoServlet() {
		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
		doPost(request,response);
	}  	
	
	/* (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
		ServletEncoding.setEncoding(request, response);
		int photoId=ParseRequest.parseInt(request, "photoId", 0);
		Photo photo=PhotoBean.getPhoto(photoId);
		photo.setArrayComment(CommentBean.getComments(0, 5, photoId, 0));
		RequestDispatcher requestDispatcher;
		if(photo==null){
			requestDispatcher=request.getRequestDispatcher("error.jsp");		
		}else{
			PhotoBean.updatePhotoSkim(photoId);
			request.setAttribute("photoInfo", photo);
			requestDispatcher=request.getRequestDispatcher("photoInfo.jsp");
		}
		response.getWriter().print(photo);
		requestDispatcher.forward(request, response);
	}   	  	    
}