这是代码(Validate.java Servlet 文件)
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String username = request.getParameter("u");
String password = request.getParameter("p");
Connection con = DBConnection.Connect();
String sql = "select *from users where name=? and pass=?";
try {
PreparedStatement ps = con.prepareStatement(sql);
ps.setString(1, username);
ps.setString(2, password);
ResultSet rs = ps.executeQuery();
request.getRequestDispatcher("WelcomeServlet").forward(request, response); //This line calls another servlet
} catch (SQLException e) {
System.out.println(e.toString());
}
}
}
WelcomeServlet.java Servlet 文件
public class WelcomeServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String username = request.getParameter("username");
response.setContentType("html/text");
PrintWriter pw = response.getWriter();
pw.write("<html><body>");
pw.write("<title>Welcome User</title>");
pw.write("<h1>" + username + "</h1>");
pw.write("</body></html>");
pw.close();
}
输出
我希望验证 servlet 调用欢迎 servlet,但它询问我是否下载验证 servlet 文件 .PFA 以获取更多详细信息 我正在弹出下载 Validate Ser