Jsp 无法访问我的登录servlet中的注册页面
这是我的servlet，但我无法导航到下一个要访问的jsp。 我得到的错误是：请求的资源不可用/Usercontroller 这是我的servlet-UsercontrollerJsp 无法访问我的登录servlet中的注册页面,jsp,servlets,Jsp,Servlets,这是我的servlet，但我无法导航到下一个要访问的jsp。 我得到的错误是：请求的资源不可用/Usercontroller 这是我的servlet-Usercontroller import java.io.IOException; import java.io.PrintWriter; import java.sql.PreparedStatement; import java.sql.SQLException; import java.text.ParseException; import
import java.io.IOException;
import java.io.PrintWriter;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import javax.swing.SwingUtilities;
public class UserController extends HttpServlet {
private static final long serialVersionUID = 1L;
private static String INSERT_OR_EDIT = "/user.jsp";
private static String LIST_USER = "/listUser.jsp";
public static String PARAM_USERNAME = "uname";
public static String PARAM_PASSWORD = "pass";
private UserDao dao;
public UserController() {
super();
dao = new UserDao();
}
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
{
String forward="";
String act = request.getParameter("act");
if (act != null && !act.equalsIgnoreCase("null") && act.equalsIgnoreCase("login")) {
forward= "/Login.jsp";
}
else if (act != null && !act.equalsIgnoreCase("null") && act.equalsIgnoreCase("delete"))
{
int userId = Integer.parseInt(request.getParameter("userId"));
dao.deleteUser(userId);
forward = LIST_USER;
request.setAttribute("users", dao.getAllUsers());
} else if (act!=null && !act.equalsIgnoreCase("null") && act.equalsIgnoreCase("edit")){
forward = INSERT_OR_EDIT;
int userId = Integer.parseInt(request.getParameter("userId"));
User user1 = dao.getUserById(userId);
request.setAttribute("user", user1);
} else if (act!=null && !act.equalsIgnoreCase("null") && act.equalsIgnoreCase("listUser")){
forward = LIST_USER;
request.setAttribute("users", dao.getAllUsers());
} else if (act!=null && !act.equalsIgnoreCase("null") && act.equalsIgnoreCase("register")){
forward = LIST_USER;
request.setAttribute("users", dao.getAllUsers());
} else
forward = "/Login.jsp";
RequestDispatcher view = request.getRequestDispatcher(forward);
view.forward(request, response);
}
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
User user = new User();
Details details = new Details();
user.setFirstName(request.getParameter("firstName"));
user.setLastName(request.getParameter("lastName"));
details.setUsername(request.getParameter("uname"));
details.setPassword(request.getParameter("pass"));
// details.setId(request.getParameter("id"));
String str=request.getParameter("username");
String str1=request.getParameter("password");
if(str.equalsIgnoreCase("shreya")&&str1.equalsIgnoreCase("singh"))
System.out.println("Login!");
else
{
System.out.println("Login failed!");
request.setAttribute("users",dao.getAllUsers());
request.getRequestDispatcher("/listUser.jsp").forward(request, response);
}
}
}
<%@ page language="java" contentType="text/html; charset=EUC-KR" pageEncoding="EUC-KR"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=EUC-KR">
<title>Show All Users</title>
</head>
<body>
<table border=1>
<thead>
<tr>
<th>User Id</th>
<th>First Name</th>
<th>Last Name</th>
<th>DOB</th>
<th>Email</th>
</tr>
</thead>
<tbody>
<c:forEach items="${users}" var="user">
<tr>
<td><c:out value="${user.userid}" /></td>
<td><c:out value="${user.firstName}" /></td>
<td><c:out value="${user.lastName}" /></td>
<td><fmt:formatDate pattern="yyyy-MMM-dd" value="${user.dob}" /></td>
<td><c:out value="${user.email}" /></td>
</tr>
</c:forEach>
</tbody>
</table>
<p><a href="/UserController?act=register">Add User</a></p>
<p><a href="logout.jsp">Logout</a></p>
</body>
</html>
显示所有用户
用户Id
名字
姓
出生日期
电子邮件
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Registration</title>
</head>
<body>
<form method="post" action="/UserController?act=save">
<center>
<table border="1" width="30%" cellpadding="5">
<thead>
<tr>
<th colspan="2">Enter Information Here</th>
</tr>
</thead>
<tbody>
<tr>
<td>First Name</td>
<td><input type="text" name="firstName" value="" /></td>
</tr>
<tr>
<td>Last Name</td>
<td><input type="text" name="lastName" value="" /></td>
</tr>
<tr>
<td>User Name</td>
<td><input type="text" name="uname" value="" /></td>
</tr>
<tr>
<td>Password</td>
<td><input type="password" name="pass" value="" /></td>
</tr>
<tr>
<td><input type="submit" value="Submit" /></td>
<td><input type="reset" value="Reset" /></td>
</tr>
<tr>
<td colspan="2">Already registered!! <a href="index.jsp">Login Here</a></td>
</tr>
</tbody>
</table>
</center>
</form>
</body>
</html>
登记处
在此处输入信息
名字
姓
用户名
密码
已经注册了！！
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
<display-name>SimpleJspServletDB2</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
<servlet>
<description></description>
<display-name>UserController</display-name>
<servlet-name>UserController</servlet-name>
<servlet-class>com.shreya.controller.UserController</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>UserController</servlet-name>
<url-pattern>/UserController</url-pattern>
</servlet-mapping>
<servlet>
<description></description>
<display-name>LoginServlet</display-name>
<servlet-name>LoginServlet</servlet-name>
<servlet-class>com.shreya.controller.LoginServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>LoginServlet</servlet-name>
<url-pattern>/LoginServlet</url-pattern>
</servlet-mapping>
<servlet>
<description></description>
<display-name>LoginServlet1</display-name>
<servlet-name>LoginServlet1</servlet-name>
<servlet-class>com.shreya.controller.LoginServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>LoginServlet1</servlet-name>
<url-pattern>/LoginServlet1</url-pattern>
</servlet-mapping>
<servlet>
<description></description>
<display-name>UserController1</display-name>
<servlet-name>UserController1</servlet-name>
<servlet-class>com.shreya.controller.UserController1</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>UserController1</servlet-name>
<url-pattern>/UserController1</url-pattern>
</servlet-mapping>
</web-app>
SimpleJspServletDB2
index.html
index.htm
index.jsp
default.html
default.htm
default.jsp
用户控制器
用户控制器
com.shreya.controller.UserController
用户控制器
/用户控制器
罗金瑟夫莱特酒店
罗金瑟夫莱特酒店
com.shreya.controller.LoginServlet
罗金瑟夫莱特酒店
/罗金瑟夫莱特酒店
登录服务器1
登录服务器1
com.shreya.controller.LoginServlet
登录服务器1
/登录服务器1
用户控制器1
用户控制器1
com.shreya.controller.UserController1
用户控制器1
/用户控制器1