📄 servletlogin.java
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package jspcart.login;import javax.servlet.*;import javax.servlet.http.*;import java.io.*;import java.util.*;import jspcart.login.*;import jspcart.conn.*;public class servletLogin 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 { String sname = request.getParameter("txtName"); request.setCharacterEncoding("gb2312"); loginItem login=new loginItem(); DBConnection db=new DBConnection(); String message="用户名和密码不相符，登陆失败"; if (sname == null) { sname = ""; } String spwd = request.getParameter("txtPwd"); if (spwd == null) { spwd = ""; } login.setUsename(sname); login.setPwd(spwd); if (login.checkLogin(db,login)==true){ response.sendRedirect("/Shopping.jsp"); } else{ response.sendRedirect("/jsplogin.jsp?message=" + message); } response.setContentType(CONTENT_TYPE); PrintWriter out = response.getWriter(); out.println("<html>"); out.println("<head><title>servletLogin</title></head>"); out.println("<body bgcolor=\"#ffffff\">"); out.println("<p>The servlet has received a " + request.getMethod() + ". This is the reply.</p>"); out.println("</body></html>"); } //Process the HTTP Post request public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { doGet(request, response); } //Clean up resources public void destroy() { }}⌨️ 快捷键说明
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