I integrate Spring Boot with Thymeleaf but the web doesn't redirect or forward after the controller returns a view. This is Thymeleaf page:
<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>login</title>
<link href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" th:href="@{/webjars/bootstrap/3.3.7/css/bootstrap.css}" rel="stylesheet">
<link rel='stylesheet' href='https://fonts.googleapis.com/css?family=Open+Sans:400,300'>
<link rel='stylesheet' href='https://fonts.googleapis.com/icon?family=Material+Icons'>
<link rel="stylesheet" href="css/style.css" th:href="@{/css/style.css}">
</head>
<body>
<div class="cont_forms">
<div class="cont_img_back_">
<img src="https://images.unsplash.com/42/U7Fc1sy5SCUDIu4tlJY3_NY_by_PhilippHenzler_philmotion.de.jpg?ixlib=rb-0.3.5&q=50&fm=jpg&crop=entropy&s=7686972873678f32efaf2cd79671673d"
alt=""/>
</div>
<div class="cont_form_login">
<a href="#" onclick="ocultar_login_sign_up()"><i class="material-icons"></i></a>
<h3>login</h3>
<input id="login_name" type="text" placeholder="username"/>
<input id="login_password" type="password" placeholder="password"/>
<div class="checkbox mb-3" style="margin:5% auto 0% 2%">
<label>
<input type="checkbox" id="remember"> Remember me
</label>
</div>
<p style="color: red" th:text="${msg}" th:if="${not #strings.isEmpty(msg)}"></p>
<button class="btn_login" onclick="login('http://localhost:8080/assignment/user/login')">login</button>
</div>
</div>
</div>
</div>
</div>
<script src="https://cdn.bootcss.com/jquery/1.12.4/jquery.min.js"></script>
<script src="https://cdn.bootcss.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<script src="js/index.js"></script>
<script>
function login(url) {
var username = document.getElementById("login_name").value;
var password = document.getElementById("login_password").value;
$.post(url, {'username':username, 'password':password});
}
</script>
</body>
</html>
And I have a controller:
@RestController
public class LoginController {
@Autowired
private StudentRepository studentRepository;
@Autowired
private TeacherRepository teacherRepository;
@PostMapping(value = "/user/login")
public ModelAndView login(@RequestParam("username") String username,
@RequestParam("password") String password,
Map<String, Object> info,
HttpSession session) {
ModelAndView mv = new ModelAndView();
mv.setViewName("index");
Optional<Student> student = studentRepository.findById(username);
if (!student.isPresent()) {
info.put("msg", "User doesn't exist.");
} else {
try {
if (!EncryptUtil.aesDecrypt(student.get().getPassword()).equals(password)) {
info.put("msg", "Wrong password!");
} else {
System.out.println("-------------------------success");
session.setAttribute("user", student.get().getName());
mv.setViewName("student/homework");
}
} catch (Exception e) {
e.printStackTrace();
}
}
return mv;
}
}
I can see ------------------------success
in the console which means method login
has exited succefully ** but the page doesn't change.** It doesn't just go to the view student/homework
. Anyony helps? Additionally this is the pom.xml
:
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.4.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
<thymeleaf.version>3.0.9.RELEASE</thymeleaf.version>
<thymeleaf-layout-dialect.version>2.2.2</thymeleaf-layout-dialect.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.webjars</groupId>
<artifactId>jquery</artifactId>
<version>3.3.1</version>
</dependency>
<dependency>
<groupId>org.webjars</groupId>
<artifactId>bootstrap</artifactId>
<version>3.3.7</version>
</dependency>
</dependencies>
-------------------------UPDATE-------------------------------
This is the stack trace:
2018-08-11 12:21:29.824 INFO 13220 --- [nio-8080-exec-1] o.a.c.c.C.[.[localhost].[/assignment] : Initializing Spring FrameworkServlet 'dispatcherServlet'
2018-08-11 12:21:29.824 INFO 13220 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet : FrameworkServlet 'dispatcherServlet': initialization started
2018-08-11 12:21:29.876 INFO 13220 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet : FrameworkServlet 'dispatcherServlet': initialization completed in 52 ms
Hibernate: select student0_.id as id1_0_0_, student0_.name as name2_0_0_, student0_.password as password3_0_0_ from students student0_ where student0_.id=?
-------------------------success
Also, I find another problem. I tried to custom Spring MVC so I wrote a configuration class:
@Configuration
public class MvcConfig extends WebMvcConfigurerAdapter {
@Bean
public WebMvcConfigurerAdapter webMvcConfigurerAdapter() {
WebMvcConfigurerAdapter adapter = new WebMvcConfigurerAdapter() {
@Override
public void addViewControllers(ViewControllerRegistry registry) {
// welcome page
registry.addViewController("/").setViewName("index");
registry.addViewController("/index.html").setViewName("index");
}
};
return adapter;
}
}
But IDEA shows that WebMvcConfigurerAdapter
has been deprecated. What should I do? I can't find a solution in the Spring Boot reference doc.
To render view you need to use @Controller
.
Change this:
@RestController
public class LoginController {
}
To:
@Controller
public class LoginController {
}
Instead of using ModelAndView, try using Model
. Do following -
Use Controller
instead of RestController
.
Change return type to String.
Add thymeleaf attributes to your Model object.
Return the template name you want to display.
Configure the template path in your properties/YML file -
spring.thymeleaf.prefix = classpath:/YOUR FOLDER NAME/
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