changemember.java

小型简单的旅馆预订系统. 客户:预定,更改,撤销,会员积分累积,查询预定,会员. 后台:会员更改,房间更改,预定更改,预定信息统计.

package servlet;

import java.io.IOException;
import java.io.PrintWriter;

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

/**
 * Servlet implementation class for Servlet: changeMember
 *
 */
 public class changeMember extends javax.servlet.http.HttpServlet implements javax.servlet.Servlet {
	 static final long serialVersionUID = 1L;
	   String booktype,custype,query;
	   private double price=0.0,discount=1.0; 
   
    /* (non-Java-doc)
	 * @see javax.servlet.http.HttpServlet#HttpServlet()
	 */
	public changeMember() {
		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
	}  	
	
	/* (non-Java-doc)
	 * @see javax.servlet.http.HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		response.setContentType("txt/html");
		PrintWriter out=response.getWriter();
		HttpSession session = request.getSession(true);
		String choose=request.getParameter("cmd");
		String userid=request.getParameter("userID");
		String query;
		insert in=new insert();
		if (choose.equals("del"))
		{
			query="delete user from User where ID="+userid+";";
			in.update(query);
		}
		else if (choose.equals("adm"))
		{
			query="update User set type='0' where ID="+userid+";";
			in.update(query);
		}
		else if (choose.equals("dad"))
		{
			query="update User set type='1' where ID="+userid+";";
			in.update(query);
		}
		response.sendRedirect("MemberAdmin.jsp");
	}   	  	    
}