使用eclipse实现简单论文管理系统

package controller; import java.io.IOException; import java.util.Calendar; import java.util.Date; import java.text.*; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.servlet.http.HttpSession; import db.dao.ThesisDao; /** * Servlet implementation class SThesisController3 */ @WebServlet("/SThesisController3") public class SThesisController3 extends HttpServlet { private static final long serialVersionUID = 1L; /** * @see HttpServlet#HttpServlet() */ public SThesisController3() { super(); // TODO Auto-generated constructor stub } /** * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response) */ protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // TODO Auto-generated method stub //response.getWriter().append("Served at: ").append(request.getContextPath()); ThesisDao dao=new ThesisDao(); String content= request.getParameter("tcontent"); HttpSession session; session=request.getSession(true); String id=(String) session.getAttribute("Tid"); Date date=new Date(); /* int year=date.getYear(); int month=date.getMonth(); int day=date.getDate(); int hours=date.getHours(); int minute=date.getMinutes(); int second=date.getSeconds(); String now=(year+"")+"-"+(month+"")+"-"+(day+"")+" "+(hours+"")+":"+(minute+"")+":"+(second+""); //System.out.print("year"+year+"month"+month+"day"+day+"hours"+hours+"minute"+minute+"second"+second+"now"+now);*/ Calendar cal=Calendar.getInstance(); DateFormat d1=DateFormat.getDateTimeInstance(DateFormat.FULL, DateFormat.FULL); String str=d1.format(date); String Year=str.substring(0,str.indexOf("年") ); String Month= str.substring(str.indexOf("年")+1, str.indexOf("月")); String Date=str.substring(str.indexOf("月")+1, str.indexOf("日")); String Hours= str.substring(str.indexOf("午")+1, str.indexOf("时")); String Minute= str.substring(str.indexOf("时")+1, str.indexOf("分")); String Second= str.substring(str.indexOf("分")+1, str.indexOf("秒")); if(Month.length()==1){ Month="0"+Month; } if(Date.length()==1){ Date="0"+Date; } String d=Year+"-"+Month+"-"+Date+" "+Hours+":"+Minute+":"+Second; System.out.print(d); dao.updateThesisContent(id, content,d); request.setAttribute("msg", "内容更改成功！"); request.getRequestDispatcher("/student/s_alter_the.jsp").forward(request, response); } /** * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response) */ protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // TODO Auto-generated method stub response.setContentType("text/html;charset=utf-8"); request.setCharacterEncoding("UTF-8"); doGet(request, response); } }