clientregcheckuser.java

来自「电子商务网站使用MVC模式B/S结构功能不是很全适合初学者看」· Java 代码 · 共 37 行

package Client;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.util.*;
import Common.DBConnectBean;
//取得页面传递过来的用户资料
public class clientRegCheckUser extends HttpServlet{
	public void doGet(HttpServletRequest request,HttpServletResponse response)throws IOException,ServletException{
		ServletContext application=getServletConfig().getServletContext(); 
		request.setCharacterEncoding("gb2312");
		String username=request.getParameter("username");
		System.out.println(username);
		String strSQL="select * from client where username=\'"+username+"\'";
		DBConnectBean dbConnectBean=new DBConnectBean("sun.jdbc.odbc.JdbcOdbcDriver","jdbc:odbc:shopping","","");
		Hashtable table=dbConnectBean.getOneRecord(strSQL);
		if(table!=null && table.get("username".toUpperCase())!=null){
			System.out.println("11");
			HttpSession session=request.getSession();
			session.removeAttribute("regUsername".toUpperCase());
			application.getRequestDispatcher("/client/clientRegister.jsp").forward(request,response);
		}else{
			System.out.println("22");
			HttpSession session=request.getSession();
			session.setAttribute("regUsername".toUpperCase(),username);
			application.getRequestDispatcher("/client/clientRegister.jsp").forward(request,response);
		}
	}
	public void doPost(HttpServletRequest request,HttpServletResponse response)throws IOException,ServletException{
	   	doGet(request,response);
	}
}