?? loginservlet.java
字號:
package chapter13.servlet;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class LoginServlet extends HttpServlet {
protected void service(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {
String forwardFile = "/success.jsp";
String username = request.getParameter("user");
String password = request.getParameter("passwd");
if ((username == null || username.trim().equals(""))
|| (password == null || password.equals(""))
|| !UserUtil.login(username, password)) {
request.setAttribute("message", "用戶名或密碼錯誤,請重新輸入!");
forwardFile = "/login.jsp";
} else {
request.setAttribute("message", "登錄成功!");
}
request.getSession().getServletContext().getRequestDispatcher(
forwardFile).forward(request, response);
}
}
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