servletinsert.java

一个留言系统

package Servlets;

import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
import DBCon.DBConnertion;

public class Servletinsert extends HttpServlet {
    private static final String CONTENT_TYPE = "text/html; charset=GBK";

    //Initialize global variables
    public void init() throws ServletException {
    }

    //Process the HTTP Get request
    public void doGet(HttpServletRequest request, HttpServletResponse response) throws
            ServletException, IOException {
        doPost(request, response);

    }

    //Process the HTTP Post request
    public void doPost(HttpServletRequest request, HttpServletResponse response) throws
            ServletException, IOException {
        response.setContentType(CONTENT_TYPE);
        request.setCharacterEncoding("gbk");
        response.setCharacterEncoding("gbk");
        PrintWriter out = response.getWriter();
      String name=request.getParameter("txtname");
      String neirong =request.getParameter("txtnr");
      DBConnertion db=new DBConnertion();
      if((null!=name&&!name.equals(""))&&(null!=neirong&&!neirong.equals("")))
      {
      db.insert(name,neirong);
      request.getRequestDispatcher("index.jsp").forward(request,response);
      }
      else
      {
       out.print("您的留言为空！");
       out.print("<a href='index.jsp'> 返回</a>");
      }
    }

    //Clean up resources
    public void destroy() {
    }
}