📄 loginservlet.java
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package scwcd.lab03;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;
public class LoginServlet extends HttpServlet {
public void doPost(HttpServletRequest request,
HttpServletResponse response)
throws IOException {
String message = getInitParameter("message");
String userid = request.getParameter("userid");
String passwd = request.getParameter("passwd");
response.setContentType("text/html; charset=GB2312");
PrintWriter out = response.getWriter();
if ( passwd.equals("scwcd") ) {
out.println("<HTML>");
out.println("<TITLE>Login Servlet</TITLE>");
out.println("<BODY>");
out.println(message + ", " + userid);
out.println("</BODY>");
out.println("</HTML>");
}
else{
out.println("<HTML>");
out.println("<TITLE>Login Servlet</TITLE>");
out.println("<BODY>");
out.println(" Login Faliure!!");
out.println("</BODY>");
out.println("</HTML>");
}
}
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