OK, I managed to get my application using Thymeleaf and now I need to reconstruct all the JSP pages into HTML5. First and foremost, I need to be able to login into the application using the username and password that worked very nicely on JSP.
My bean for assigning the HTML5 pages as the view layer is defined as:
#Bean
public ViewResolver viewResolver() {
ServletContextTemplateResolver templateResolver = new ServletContextTemplateResolver();
templateResolver.setTemplateMode("HTML5");
templateResolver.setCharacterEncoding("UTF-8");
templateResolver.setPrefix("/WEB-INF/html/");
templateResolver.setSuffix(".html");
SpringTemplateEngine engine = new SpringTemplateEngine();
engine.setTemplateResolver(templateResolver);
ThymeleafViewResolver viewResolver = new ThymeleafViewResolver();
viewResolver.setTemplateEngine(engine);
return viewResolver;
}
My LoginController is defined as:
#Controller
public class LoginController {
#Autowired
UserProfileService userProfileService;
#Autowired
UserService userService;
#RequestMapping(value = { "/", "/home" }, method = RequestMethod.GET)
public String homePage(ModelMap model) {
String user = getPrincipal();
model.addAttribute("greeting", "Hi, Welcome to HRM");
model.addAttribute("user", user);
model.addAttribute("roles", initializeProfiles());
return "welcome";
}
#RequestMapping(value = "/login", method = RequestMethod.GET)
public String loginPage() {
return "login";
}
#RequestMapping(value="/logout", method = RequestMethod.GET)
public String logoutPage (HttpServletRequest request, HttpServletResponse response) {
Authentication auth = SecurityContextHolder.getContext().getAuthentication();
if (auth != null){
new SecurityContextLogoutHandler().logout(request, response, auth);
}
return "redirect:/login?logout";
}
private String getPrincipal(){
String userName = null;
Object principal = SecurityContextHolder.getContext().getAuthentication().getPrincipal();
if (principal instanceof UserDetails) {
userName = ((UserDetails)principal).getUsername();
} else {
userName = principal.toString();
}
return userName;
}
(...)
}
The old login.jsp is transcribed bellow:
<%# page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%#include file="include/include.jsp"%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Login page</title>
<%#include file="include/imports.jsp"%>
</head>
<body>
<div id="mainWrapper">
<div class="login-container">
<div class="login-card">
<div class="login-form">
<c:url var="loginUrl" value="/login" />
<form action="${loginUrl}" method="post" class="form-horizontal">
<c:if test="${param.error != null}">
<div class="alert alert-danger">
<p>Invalid username and password.</p>
</div>
</c:if>
<c:if test="${param.logout != null}">
<div class="alert alert-success">
<p>You have been logged out successfully. </p>
</div>
</c:if>
<div class="input-group input-sm">
<label class="input-group-addon" for="username"><i class="fa fa-user"></i></label>
<input type="text" class="form-control" id="username" name="ssoId" placeholder="Enter Username" required>
</div>
<div class="input-group input-sm">
<label class="input-group-addon" for="password"><i class="fa fa-lock"></i></label>
<input type="password" class="form-control" id="password" name="password" placeholder="Enter Password" required>
</div>
<input type="hidden" name="${_csrf.parameterName}" value="${_csrf.token}" />
<div class="form-actions">
<input type="submit"
class="btn btn-block btn-primary btn-default" value="Log in">
</div>
</form>
</div>
</div>
</div>
</div>
</body>
</html>
The new login.html is transcribed bellow:
<!DOCTYPE html><html>
<head>
<meta charset="utf-8"></meta>
<title>Login Page</title>
<meta name="description" content="login page" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<!-- <link rel="imports" href="include/imports.html" /> -->
<link rel="shortcut icon" href="assets/img/favicon.png"
type="image/x-icon" />
<link href="assets/css/bootstrap.min.css" rel="stylesheet" />
<link id="bootstrap-rtl-link" href="" rel="stylesheet" />
<link href="assets/css/font-awesome.min.css" rel="stylesheet" />
<link
href="http://fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,600italic,700italic,400,600,700,300"
rel="stylesheet" type="text/css" />
<link id="beyond-link" href="assets/css/beyond.min.css" rel="stylesheet" />
<link href="assets/css/demo.min.css" rel="stylesheet" />
<link href="assets/css/animate.min.css" rel="stylesheet" />
<link id="skin-link" href="" rel="stylesheet" type="text/css" />
<script src="assets/js/skins.min.js" ></script>
<script src="assets/js/jquery-2.0.3.min.js"></script>
<script src="assets/js/bootstrap.min.js"></script>
<script src="assets/js/slimscroll/jquery.slimscroll.min.js"></script>
<script src="assets/js/beyond.js"></script>
</head>
<body>
<div class="login-container animated fadeInDown">
<div class="loginbox bg-white">
<div class="loginbox-title">SIGN IN</div>
<div class="loginbox-textbox">
<input type="text" class="form-control" placeholder="Username"></input>
</div>
<div class="loginbox-textbox">
<input type="password" class="form-control" placeholder="Password"></input>
</div>
<div class="loginbox-forgot">
Forgot Password?
</div>
<div class="loginbox-submit">
<input type="button" class="btn btn-primary btn-block" value="Login"></input>
</div>
<div class="loginbox-signup">
Sign Up With Email
</div>
</div>
</div>
</body>
</html>
I really am not familiar with how Thymeleaf and HTML5 handles requests. On the JSP form, the action was explicit and the submit type button or link would access the POST method on the controller and process the request. But how do I bind the view (Thymeleaf + HTML5) to the controller (Spring) layer?
Looking at your code, you have a form with both action and method attributes specified in your JSP template, but you're lacking a form entirely in your Thymeleaf template. You should be able to re-create the same form with either th:attr, th:action or th:method attributes. With properly mapped request, your controller should handle it no problem.
For more details, you can have a look at section 5 of Thymeleaf docs:
http://www.thymeleaf.org/doc/tutorials/2.1/usingthymeleaf.html#setting-attribute-values
Related
I started to work with thymeleaf in a basic project. When I want to display a message in the sign up page the th:text does not work. I used already th:text in other .html files and it works there but in the signUp.html doesn't.
Here is my controller where I set the message:
package com.teszt.thymeleaftest.controller;
#Controller
#RequestMapping("/login")
#AllArgsConstructor
public class MemberController {
MembersService membersService;
#GetMapping("/login")
public String showLoginPage(){
return "/login/login";
}
#GetMapping("/signUp")
public String showSignUpPage(Model theModel){
Members theMember = new Members();
theModel.addAttribute("member", theMember);
return "/login/signUp";
}
#PostMapping("/save")
public String saveMember(#ModelAttribute("member") Members theMember, ModelMap modelMap){
Members tempMember = membersService.findByEmail(theMember.getEmail());
if(tempMember != null){
modelMap.addAttribute("error", "Email is already exist!");
return "redirect:/login/signUp";
}else{
membersService.save(theMember);
//prevent duplication
return "redirect:/login/login";
}
}
}
Here is my signUp.html
<!DOCTYPE HTML>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
<!-- Required meta tags -->
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- Bootstrap CSS -->
<link href="https://cdn.jsdelivr.net/npm/bootstrap#5.0.1/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-+0n0xVW2eSR5OomGNYDnhzAbDsOXxcvSN1TPprVMTNDbiYZCxYbOOl7+AMvyTG2x" crossorigin="anonymous">
<title>Signup</title>
</head>
<body>
<div class="container">
<h3>Signup</h3>
<hr>
<p class="h4 mb-4">Signup</p>
<form action="#" th:action="#{/login/save}" th:object="${member}" method="POST">
<input type="text" th:field="*{firstName}" class="form-control mb-4 col-4" placeholder="First name">
<input type="text" th:field="*{lastName}" class="form-control mb-4 col-4" placeholder="Last name">
<input type="text" th:field="*{email}" class="form-control mb-4 col-4" placeholder="Email">
<input type="password" th:field="*{password}" class="form-control mb-4 col-4" placeholder="Password">
<button type="submit" class="btn btn-info col-2">Save</button>
<p th:text="${error}" />
</form>
<br>
Do you have an account? <a th:href="#{/login/login}">Click here</a>
</div>
</body>
</html>
As I mentioned above this is the only html where the th:text does not works, everywhere else is good.
I hope somebody can help me!
When you use a redirect:, you lose all your model attributes (because it's loading a new page). You need to use a FlashAttribute instead. Like this:
#PostMapping("/save")
public String saveMember(#ModelAttribute("member") Members theMember, ModelMap modelMap, RedirectAttributes redirAttrs){
Members tempMember = membersService.findByEmail(theMember.getEmail());
if(tempMember != null){
redirAttrs.addFlashAttribute("error", "Email is already exist!");
return "redirect:/login/signUp";
}else{
membersService.save(theMember);
//prevent duplication
return "redirect:/login/login";
}
}
We have a web application in which we need to show one header if we are logged in, and another one if we are not logged in. I would like to render these server side in a JSP file.
Here is my first attempt:
WebDelivery.java
package xyz.toold.cuebox.web;
import java.util.HashMap;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import org.glassfish.jersey.server.mvc.Viewable;
#Path("/")
public class WebDelivery {
#Path("/")
#GET
public Viewable index() {
HashMap<String, Object> model = new HashMap<>();
model.put("LoggedIn", true);
return new Viewable("/index", model);
}
#Path("/search/")
#GET
public Viewable search() {
return new Viewable("/search/index", true);
}
#Path("/user/")
#GET
public Viewable user() {
return new Viewable("/user/index");
}
#Path("/board/details/")
#GET
public Viewable boardDetails() {
return new Viewable("/board/details/index");
}
#Path("/board/")
#GET
public Viewable board() {
return new Viewable("/board/index");
}
#Path("/admin/")
#GET
public Viewable admin() {
return new Viewable("/admin/index");
}
}
index.jsp
<%# taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<!DOCTYPE HTML>
<html lang="en">
<head>
<meta http-equiv="Content-Security-Policy" content="default-src: https: 'unsafe-inline'" />
<meta charset="utf-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="robots" content="index,follow" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<link rel="stylesheet" href="css/bulma.min.css">
<link rel="stylesheet" href="css/style.css">
<title>CueBox</title>
</head>
<body>
<%--TODO: Add logic to decide which header to set--%>
<c:if test="${model.LoggedIn}">
<jsp:include page="assets/partials/header-nologin-popups.jsp"/>
</c:if>
<section class="hero has-plant-image-background is-fullheight">
<div class="title-position">
<div class="hero-body">
<div class="container">
<h1 class="title-size has-text-white">NEW ERA OF<br/>FEEDBACK</h1>
<h2 class="hr subtitle-size has-text-white">GET YOUR FEEDBACK WITH EASE</h2>
</div>
</div>
</div>
</section>
<section class="section is-fullheight has-text-black has-background-grey-light has-text-centered">
<div class="column is-half is-offset-one-quarter">
<div class="hero-body">
<h1 class="title is-1">WHAT TO EXPECT</h1>
<hr class="line has-background-white">
</div>
</div>
<div class="hero-body">
<div class="container">
<div class="columns">
<div class="column">
<div class="content">
<i class="icon is-large fas fa-2x fa-comments"></i>
<h1 class="title is-size-4">Honest Feedback</h1>
<p class="is-size-5">The users can write anonymous posts, so it will be more honest.</p>
</div>
</div>
<div class="column">
<div class="content">
<i class="icon is-large fas fa-2x fa-cogs"></i>
<h1 class="title is-size-4">Easy administration</h1>
<p class="is-size-5">Don't waste time be configuring stupid settings.</p>
</div>
</div>
<div class="column">
<div class="content">
<i class="icon is-large fas fa-2x fa-users"></i>
<h1 class="title is-size-4">Scalable</h1>
<p class="is-size-5">CueBox works for living communities, small companies and lare groups.</p>
</div>
</div>
</div>
</div>
</div>
</section>
<jsp:include page="assets/partials/footer.html"/>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js" integrity="sha384-tsQFqpEReu7ZLhBV2VZlAu7zcOV+rXbYlF2cqB8txI/8aZajjp4Bqd+V6D5IgvKT" crossorigin="anonymous"></script>
<script defer src="https://use.fontawesome.com/releases/v5.3.1/js/all.js" integrity="sha384-kW+oWsYx3YpxvjtZjFXqazFpA7UP/MbiY4jvs+RWZo2+N94PFZ36T6TFkc9O3qoB" crossorigin="anonymous"></script>
<script src="js/main.js"></script>
<script src="js/validation.js"></script>
<script src="js/helper.js"></script>
</body>
</html>
The problem is my if never fires, so the header never gets shown. I know that the else is missing. I would have implemented it via having another if, which is inverted.
I also tried not passing a HashMap but a plain boolean, but it did not work either.
This is a link to my GitLab project.
What am I doing wrong, or is this entirely the wrong way to do it?
I'm pretty new in Spring boot and have some problems.
I have automobile and file, when I add automobile data and save it in db, want to upload the file which is connected to automobile by relationship OneToOne but when save automobile in #PostMapping("/saveAutomobile") I could't take this automobileId and to transfer it to #PostMapping("/uploadFile") to do the connection. Do you have any suggestions?
adding automobile:
<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org"
xmlns:sec="http://www.thymeleaf.org/extras/spring-security">
<head>
<div th:replace="fragments/links"></div>
<meta charset="UTF-8" />
<title>New Brand</title>
<link th:href="#{resources/css/bootstrap.min.css}" rel="stylesheet"></link>
</head>
<body>
<div class="container add shadow">
<h2>New Automobile</h2>
<form th:action="#{/automobile/saveAutomobile}" method="post"
th:object="${automobileForm}">
<div class="row">
<div class="column">
<div class="form-group shadow">
<label class="form-control-label" for="inputBrand"> Brand</label>
<input type="text"
class="form-control form-control-danger box-shadow"
id="inputBrand" th:field="*{brand}" name="brand"
required="required" />
</div>
<div class="form-group shadow">
<label class="form-control-label" for="inputModel"> Model</label>
<input type="text"
class="form-control form-control-danger box-shadow"
id="inputModel" th:field="*{model}" name="model"/>
</div>
</div>
<div style="text-align: center;">
<a th:href="#{/file/uploadFile} + ${automobile?.getId()}"> <input type="submit"
class="btn btn-default box-shadow shadow" />
</a>
</div>
</form>
</div>
<script th:src="#{resources/js/jquery-1.11.1.min.js}"></script>
<script th:src="#{resources/js/bootstrap.min.js}"></script>
</body>
</html>
#PostMapping("/saveAutomobile")
public String saveAutomobile(#Valid final AutomobileForm automobileForm, final BindingResult result) {
if (result.hasErrors()) {
LOG.error("SaveAutomobile Error: " + result);
return "automobile/add";
}
final Automobile automobile = automobileConverter.ConvertToEntity(automobileForm);
if (LOG.isDebugEnabled()) {
LOG.info("Saving client " + automobile);
}
automobileService.save(automobile);
automobileForm.setId(automobile.getId());
return "/files/uploadFile";
}
uploading file:
<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org"
xmlns:sec="http://www.thymeleaf.org/extras/spring-security">
<head>
<div th:replace="fragments/links"></div>
<meta charset="UTF-8" />
<meta name="viewport"
content="width=device-width, initial-scale=1.0, minimum-scale=1.0" />
<title>Upload automobile documentation</title>
<link th:href="#{resources/css/bootstrap.min.css}" rel="stylesheet"></link>
</head>
<body>
<div class="container upload shadow">
<h2>Upload automobile documentation</h2>
<form th:action="#{/uploadFile}" method="post"
enctype="multipart/form-data" id="singleUploadForm"
name="singleUploadForm" >
<div class="form-group shadow">
<label class="form-control-label" for="uploadfile">Upload
File:</label> <input id="singleFileUploadInput" type="file" name="file"
class="file-input form-control form-control-danger box-shadow" />
</div>
<button type="submit" class="btn btn-default box-shadow shadow"
id="btnSubmit">Upload</button>
</form>
<div class="upload-response">
<div id="singleFileUploadError"></div>
<div id="singleFileUploadSuccess"></div>
</div>
</div>
<script src="/js/main.js"></script>
</body>
</html>
#Autowired
private FileStorageService DBFileStorageService;
#PostMapping("/uploadFile")
public FileForm uploadFile(#RequestParam("file") MultipartFile file) {
File dbFile = DBFileStorageService.storeFile(file);
return new FileForm(dbFile.getFileName(),
file.getContentType(), file.getSize());
}
You can use models to store data and use it in your HTML page
for example:-
Controller.java
#GetMapping("/goToViewPage")
public ModelAndView passParametersWithModelAndView() {
ModelAndView modelAndView = new ModelAndView("viewPage");
modelAndView.addObject("message", "Hello from the controller");
return modelAndView;
}
Test.html
<!DOCTYPE HTML>
<html xmlns:th="http://www.thymeleaf.org">
<head>
<title>Title</title>
</head>
<body>
<div>Web Application. Passed parameter : th:text="${message}"</div>
</body>
</html>
#PostMapping("/uploadFile")
public ResponseEntity<FileForm> uploadFile(#RequestParam("file") MultipartFile file) {
File dbFile = DBFileStorageService.storeFile(file);
FileForm fileForm = new FileForm(dbFile.getFileName(), file.getContentType(), file.getSize());
return new ResponseEntity<>(fileForm, HttpStatus.OK);
}
I am trying to insert data's into database using Spring,Hibernate and MySql. I am getting the following error while inserting data into database
"Neither BindingResult nor plain target object for bean name 'owner' available as request attribute". I tried all possible solutions available but couldn't clear it.
This is my controller
#Controller
public class DataOwnerRegController {
#Autowired(required = true)
DataService dataService;
#RequestMapping(value="/DataOwnerReg",method = RequestMethod.POST)
public String getForm(#ModelAttribute("owner") Model model )
{
model.addAttribute("owner", new Owner());
return "DataOwnerReg";
}
#RequestMapping(value = "/DataOwnerReg")
public ModelAndView registeruser(#ModelAttribute("owner") Owner owner, BindingResult result){
ModelAndView modelAndView = new ModelAndView("DataOwnerReg");
dataService.insertRow(owner);
return modelAndView;
}
}
My View
<%# page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<%#taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%# taglib uri="http://www.springframework.org/tags/form" prefix="form" %>
<!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=ISO-8859-1">
<title>DATA OWNER REGISTRATION</title>
<link href="<c:url value="/resources/theme/css/bootstrap.css"/>" rel="stylesheet" >
<link href="<c:url value="/resources/theme/css/style.css"/>" rel="stylesheet">
<script src="<c:url value="/resources/theme/js/jquery-2.1.4.min.js"/>"> </script>
<script src="<c:url value="/resources/theme/js/bootstrap.mi.js"/>"></script>
<link href='https://fonts.googleapis.com/css?family=Raleway:300' rel='stylesheet' type='text/css'>
<link href='https://fonts.googleapis.com/css?family=Bangers' rel='stylesheet' type='text/css'>
</head>
<body class="body-image">
<div>
<nav style="background-color:transparent;border:none" class="navbar navbar-default">
<div class="container">
<ul class="nav navbar-nav">
<li><a style="font-family: Raleway,sans-serif;color:white;font-size:15px;font-weight:600" href="<c:url value="/"/>">HOME</a></li>
<li><a style="font-family: Raleway,sans-serif;color:white;font-size:15px;font-weight:600" href="<c:url value="/DataOwner"/>">DATAOWNER</a></li>
<li><a style="font-family: Raleway,sans-serif;color:white;font-size:15px;font-weight:600" href="<c:url value="/DataOwner"/>">DATA CENTER</a></li>
<li><a style="font-family: Raleway,sans-serif;color:white;font-size:15px;font-weight:600" href="<c:url value="/DataOwner"/>">KEY DISTRIBUTION</a></li>
<li><a style="font-family: Raleway,sans-serif;color:white;font-size:15px;font-weight:600" href="<c:url value="/DataOwner"/>">ADMINISTRATOR</a> </li>
</ul>
</div>
</nav>
</div>
<div class="container">
<div class="border">
<form:form modelAttribute="owner" method="Post" action="/DataOwnerReg">
<h3 style="text-align:center">Data Owner Registration</h3>
<h2 style="text-align:center">${message}</h2>
<hr style="width:25%"/>
<div class="formation">
<h4>Username:</h4>
<div class="input-group">
<form:input type="text" class="form-control" style="font-family:Raleway,sans-serif;height:40px" placeholder="Enter the Username" required="" path="Username" /><div class="input-group-addon"><span class="glyphicon glyphicon-user" aria-hidden="true"></span></div>
</div>
<h4>Password:</h4>
<div class="input-group">
<form:input type="password" class="form-control" style="font-family:Raleway,sans-serif;height:40px" placeholder="Enter the Password" required="" path="Password"/><div class="input-group-addon"><span class="glyphicon glyphicon-lock" aria-hidden="true"></span></div>
</div>
<h4>Confirm Password:</h4>
<div class="input-group">
<form:input type="password" class="form-control" style="font-family:Raleway,sans-serif;height:40px" placeholder="Repeat Password" required="" path="CPassword" /><div class="input-group-addon"><span class="glyphicon glyphicon-lock" aria-hidden="true"></span></div>
</div>
<h4>Email Address:</h4>
<div class="input-group">
<form:input type="email" class="form-control" style="font-family:Raleway,sans-serif;height:40px" placeholder="me#example.com" required="" path="Email" /><div class="input-group-addon"><span class="glyphicon glyphicon-envelope" aria-hidden="true"></span></div>
</div>
<h4>Mobile Number:</h4>
<div class="input-group">
<form:input type="text" class="form-control" style="font-family:Raleway,sans-serif;height:40px" placeholder="10 Digit Mobile Number" required="" path="Email" /><div class="input-group-addon"><span class="glyphicon glyphicon-pencil" aria-hidden="true"></span></div>
</div>
<div>
<input type="submit" style="width:150px;height:45px;margin-top:30px;font-family:Raleway,sans-serif" class="btn btn-success" value="Register"/>
</div>
<br/>
</div>
</form:form>
</div>
</div>
</body>
</html>
Please Help in this.
Thanks in advance
There are a couple things wrong with your controller
First you have the #ModelAttribute on a method argument of the type Model which you shouldn't do. Next the method you expect to be invoked on a GET request is going to be invoked on a POST request so basically there will be no model. Finally in your method that should handle the POST request you are returning a ModelAndView but with an empty model, so at that point there is no model anymore and no Owner object.).
I would suggest to fix your controller in the following way
#Controller
#RequestMapping("/DataOwnerReg")
public class DataOwnerRegController {
private final DataService dataService;
#Autowired
public DataOwnerRegController(DataService DataService) {
this.dataService=dataService;
}
#ModelAttribute
public Owner owner() {
return new Owner();
}
#RequestMapping(method = RequestMethod.GET)
public String get() {
return "DataOwnerReg";
}
#RequestMapping(method = RequestMethod.POST)
public String registeruser(#ModelAttribute("owner") Owner owner, BindingResult result){
dataService.insertRow(owner);
return "DataOwnerReg";
}
}
I have a jsp page which takes user name and password and then it redirect to a servlet. Below is jsp code,
<%# page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="description" content="">
<meta name="author" content="">
<title>DeliverMe</title>
<!-- Bootstrap Core CSS -->
<link href="css/bootstrap.min.css" rel="stylesheet">
<!-- Custom CSS -->
<link href="css/sb-admin.css" rel="stylesheet">
<!-- Custom Fonts -->
<link href="font-awesome-4.1.0/css/font-awesome.min.css" rel="stylesheet" type="text/css">
<!-- HTML5 Shim and Respond.js IE8 support of HTML5 elements and media queries -->
<!-- WARNING: Respond.js doesn't work if you view the page via file:// -->
<!--[if lt IE 9]>
<script src="https://oss.maxcdn.com/libs/html5shiv/3.7.0/html5shiv.js"></script>
<script src="https://oss.maxcdn.com/libs/respond.js/1.4.2/respond.min.js"></script>
<![endif]-->
<!-- jQuery Version 1.11.0 -->
<script src="js/jquery-1.11.0.js"></script>
<script type="text/javascript">
$(document).ready(function() {
$('#btn-login').click(function() {
var userName = $('#userName').val();
var password = $('#password').val();
var datastr='userName='+userName+'&password='+ password;
$.ajax({
url : 'LoginCheck',
data :datastr,
success : function(responseText) {
$('#ajaxGetUserServletResponse').text(responseText);
},
error:function(url){
window.location = url;
}
});
});
});
</script>
</head>
</head>
<body>
<div class="container">
<span style="color: #000099"><center><h2>DeliverMe Admin Panel</h2></center></span>
<div id="loginbox" style="margin-top:50px;" class="mainbox col-md-6 col-md-offset-3 col-sm-8 col-sm-offset-2">
<div class="panel panel-info" >
<div class="panel-heading">
<div class="panel-title">Sign In</div>
</div>
<div style="padding-top:30px" class="panel-body" >
<div style="display:none" id="login-alert" class="alert alert-danger col-sm-12"></div>
<form id="loginform" class="form-horizontal" role="form">
<div style="margin-bottom: 25px" class="input-group">
<span class="input-group-addon"><i class="glyphicon glyphicon-user"></i></span>
<input id="userName" type="text" class="form-control" placeholder="username or email">
</div>
<div style="margin-bottom: 25px" class="input-group">
<span class="input-group-addon"><i class="glyphicon glyphicon-lock"></i></span>
<input id="password" type="password" class="form-control" name="password" placeholder="password">
</div>
<div style="margin-top:10px" class="form-group">
<!-- Button -->
<div class="col-sm- 12 controls">
<a id="btn-login" class="btn btn-success">Login</a>
</div>
</div>
<span id="ajaxGetUserServletResponse" style="color: red;"></span>
</form>
</div>
</div>
</div>
</div>
</body>
</html>
Then my servlet checks user name and password and if it is wrong then it gives error text but if it is true then it should be redirect to success page. But it doesn't effect. Below is servlet code,
if(db.loginCheck(userName, password))
{
request.getRequestDispatcher("/main.jsp").forward(request, response);
}else
{
String greetings = "Invalid Username/Password";
response.setContentType("text/plain");
response.getWriter().write(greetings);
}
I got solution. I have changed response of my servlet like this,
if(db.loginCheck(userName, password))
{
response.getWriter().write("1");
}else
{
greetings = "Invalid Username/Password";
response.setContentType("text/plain");
response.getWriter().write(greetings);
}
and on my jsp page i have put this,
<script type="text/javascript">
$(document).ready(function() {
$('#btn-login').click(function() {
var userName = $('#userName').val();
var password = $('#password').val();
var datastr='userName='+userName+'&password='+ password;
$.ajax({
url : 'LoginCheck',
data :datastr,
success : function(responseText) {
if(responseText == "1"){
window.location.assign("/main.jsp");
}else{
$('#ajaxGetUserServletResponse').text(responseText);
}
},
});
});
});
</script>
Try this:
Servlet
if(db.loginCheck(userName, password))
{
String greetings = "Success";
response.setContentType("text/plain");
response.getWriter().write(greetings);
}
else
{
String greetings = "Invalid Username/Password";
response.setContentType("text/plain");
response.getWriter().write(greetings);
}
Jquery:
$.ajax({
url : 'LoginCheck',
data :datastr,
success : function(responseText) {
if(responseText == "Success"){
windows.location.href='/main.jsp';
}else{
windows.location.href='/error.jsp';
});