Jsp/Servlet

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Java

AdminServlet.java：源码内容
							package com.appspot.cindyblog.servlet;
import java.io.IOException;
import java.util.Date;
import javax.persistence.EntityManager;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.appspot.cindyblog.common.EMF;
import com.appspot.cindyblog.pojo.ArticleBean;
import com.appspot.cindyblog.pojo.DiscussBean;
import com.appspot.cindyblog.pojo.LinkBean;
import com.appspot.cindyblog.pojo.MessageBean;
import com.appspot.cindyblog.pojo.TypeBean;
import com.google.appengine.api.datastore.Text;
public class AdminServlet extends BaseServlet {
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		String method = request.getParameter("m");
		if("addJournal".equals(method)){
			addJournal(request,response);
		}else if("addMessage".equals(method)){
			addMessage(request,response);
		}else if("addType".equals(method)){
			addType(request,response);
		}else if("addDiscuss".equals(method)){
			addDiscuss(request,response);
		}else if("addLink".equals(method)){
			addLink(request,response);
		}
	}
	
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		this.doGet(request, response);
	}
	public void addJournal(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		String title = request.getParameter("title");
		String type = request.getParameter("type");
		String content = request.getParameter("richEdit0");
		EntityManager em = null;
		try {
			ArticleBean article = new ArticleBean(title,new Date(),type,new Text(content),0);
			as = getAdminService();
			em = EMF.get().createEntityManager();
			as.addArticle(article, em);
			response.getWriter().print("add success!");
		} catch (RuntimeException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}finally{
			as = null;
			closeEntityManager(em);
		}
	}
	
	public void addMessage(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		String name = request.getParameter("name");
		String website = request.getParameter("website");
		String email = request.getParameter("email");
		String content = request.getParameter("content");
		MessageBean message = new MessageBean(email,website,name,new Date(),new Text(content));
		EntityManager em = null;
		try {
			as = getAdminService();
			em = EMF.get().createEntityManager();
			boolean b =as.addMessage(message, em);
			response.setContentType("text/html;charset=utf-8");
			String html = "";
			if(b){
				html = "<script>alert('添加成功！');parent.document.f2.reset();</script>";
			}else{
				html = "<script>alert('添加失败！');</script>";
			}
			response.getWriter().print(html);
		} catch (RuntimeException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}finally{
			as = null;
			closeEntityManager(em);
		}
	}
	
	public void addType(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		String name = request.getParameter("name");
		TypeBean type = new TypeBean(name,0);
		EntityManager em = null;
		try {
			as = getAdminService();
			em = EMF.get().createEntityManager();
			as.addObject(type, em);
			response.getWriter().print("add success!");
		} catch (RuntimeException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}finally{
			as = null;
			closeEntityManager(em);
		}
	}
	
	public void addLink(HttpServletRequest request, HttpServletResponse response)
		throws ServletException, IOException {
		String name = request.getParameter("name");
		String url = request.getParameter("url");
		LinkBean link = new LinkBean(name,url);
		EntityManager em = null;
		try {
			as = getAdminService();
			em = EMF.get().createEntityManager();
			as.addObject(link, em);
			response.getWriter().print("add success!");
		} catch (RuntimeException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}finally{
			as = null;
			closeEntityManager(em);
		}
	}
	
	public void addDiscuss(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		String name = request.getParameter("name");
		String email = request.getParameter("email");
		String content = request.getParameter("richEdit0");
		String journal_id = request.getParameter("rid");
		String title = request.getParameter("title");
		int id = Integer.parseInt(journal_id);
		DiscussBean discuss = new DiscussBean(name,title,new Date(),new Text(content),id,email);
		EntityManager em = null;
		try {
			as = getAdminService();
			em = EMF.get().createEntityManager();
			boolean b = as.addDiscuss(discuss, em);
			response.setContentType("text/html;charset=utf-8");
			String html = "";
			if(b){
				html = "<script>alert('添加成功！');parent.document.f1.reset();parent.document.getElementById('rtoIFrame0').contentDocument.body.innerHTML='';</script>";
			}else{
				html = "<script>alert('添加失败！');</script>";
			}
			response.getWriter().print(html);
		} catch (RuntimeException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}finally{
			as = null;
			closeEntityManager(em);
		}
	}
}

						