I wanna change my swagger-ui path from localhost:8080/swagger-ui.html to
localhost:8080/myapi/swagger-ui.html in springboot
redirect is helpless to me
In the application.properties of Spring Boot
springdoc.swagger-ui.path=/swagger-ui-custom.html
in your case it will be
springdoc.swagger-ui.path=/myapi/swagger-ui.html
if for some reason you don't want redirect to /swagger-ui.html you can set itself contents as home view, setting an index.html at resources/static/index.html:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Welcome to another awesome Microservice</title>
</head>
<body>
<script>
document.body.innerHTML = '<object type="text/html" data="/swagger-ui.html" style="overflow:hidden;overflow-x:hidden;overflow-y:hidden;height:100%;width:100%;position:absolute;top:0px;left:0px;right:0px;bottom:0px"></object>';
</script>
</body>
</html>
then accessing to your http://localhost:8080/ you will see your swagger docs.
finally you can customize path and .html file using:
registry.addViewController("/swagger").setViewName("forward:/index.html");
like suggests this answer
You can modify springfox properties in application.properties
For example, to edit the base-url
springfox.documentation.swagger-ui.base-url=documentation
For e.g. setting it to /documentation will put swagger-ui at /documentation/swagger-ui/index.html
If you want to add, for example, documentation prefix - You can do like this for path http://localhost:8080/documentation/swagger-ui.html:
kotlin
#Configuration
#EnableSwagger2
#ConfigurationPropertiesScan("your.package.config")
#Import(value = [BeanValidatorPluginsConfiguration::class])
class SwaggerConfiguration(
private val swaggerContactProp: SwaggerContactProp, private val swaggerProp: SwaggerProp
) : WebMvcConfigurationSupport() {
// https://springfox.github.io/springfox/docs/current/
#Bean
fun api(): Docket = Docket(DocumentationType.SWAGGER_2)
.groupName("Cards")
.apiInfo(getApiInfo())
.select()
.apis(RequestHandlerSelectors.basePackage("your.controllers.folder"))
.paths(PathSelectors.any())
.build()
private fun getApiInfo(): ApiInfo {
val contact = Contact(swaggerContactProp.name, swaggerContactProp.url, swaggerContactProp.mail)
return ApiInfoBuilder()
.title(swaggerProp.title)
.description(swaggerProp.description)
.version(swaggerProp.version)
.contact(contact)
.build()
}
override fun addViewControllers(registry: ViewControllerRegistry) {
with(registry) {
addRedirectViewController("/documentation/v2/api-docs", "/v2/api-docs").setKeepQueryParams(true)
addRedirectViewController(
"/documentation/swagger-resources/configuration/ui", "/swagger-resources/configuration/ui"
)
addRedirectViewController(
"/documentation/swagger-resources/configuration/security", "/swagger-resources/configuration/security"
)
addRedirectViewController("/documentation/swagger-resources", "/swagger-resources")
}
}
override fun addResourceHandlers(registry: ResourceHandlerRegistry) {
registry.addResourceHandler("/documentation/**").addResourceLocations("classpath:/META-INF/resources/")
}
}
#ConfigurationProperties(prefix = "swagger")
#ConstructorBinding
data class SwaggerProp(val title: String, val description: String, val version: String)
#ConfigurationProperties(prefix = "swagger.contact")
#ConstructorBinding
data class SwaggerContactProp(val mail: String, val url: String, val name: String)
and in applicatiom.yml:
swagger:
title: Cards
version: 1.0
description: Documentation for API
contact:
mail: email#gmail.com
url: some-url.com
name: COLABA card
Also don't forget to add in build.gradle.kts:
implementation("io.springfox:springfox-swagger2:$swagger")
implementation("io.springfox:springfox-swagger-ui:$swagger")
implementation("io.springfox:springfox-bean-validators:$swagger")
I've found several possible solutions for myself. Maybe it will be helpful for somebody else.
Set springdoc.swagger-ui.path directly
The straightforward way is to set property springdoc.swagger-ui.path=/custom/path. It will work perfectly if you can hardcode swagger path in your application.
Override springdoc.swagger-ui.path property
You can change default swagger-ui path programmatically using ApplicationListener<ApplicationPreparedEvent>. The idea is simple - override springdoc.swagger-ui.path=/custom/path before your Spring Boot application starts.
#Component
public class SwaggerConfiguration implements ApplicationListener<ApplicationPreparedEvent> {
#Override
public void onApplicationEvent(final ApplicationPreparedEvent event) {
ConfigurableEnvironment environment = event.getApplicationContext().getEnvironment();
Properties props = new Properties();
props.put("springdoc.swagger-ui.path", swaggerPath());
environment.getPropertySources()
.addFirst(new PropertiesPropertySource("programmatically", props));
}
private String swaggerPath() {
return "/swagger/path"; //todo: implement your logic here.
}
}
In this case, you must register the listener before your application start:
#SpringBootApplication
#OpenAPIDefinition(info = #Info(title = "APIs", version = "0.0.1", description = "APIs v0.0.1"))
public class App {
public static void main(String[] args) {
SpringApplication application = new SpringApplication(App.class);
application.addListeners(new SwaggerConfiguration());
application.run(args);
}
}
Redirect using controller
You can also register your own controller and make a simple redirect as suggested there.
Redirect code for Spring WebFlux applications:
#RestController
public class SwaggerEndpoint {
#GetMapping("/custom/path")
public Mono<Void> api(ServerHttpResponse response) {
response.setStatusCode(HttpStatus.PERMANENT_REDIRECT);
response.getHeaders().setLocation(URI.create("/swagger-ui.html"));
return response.setComplete();
}
}
The problem with such an approach - your server will still respond if you call it by address "/swagger-ui.html".
You can use this code, it worked for me
package com.swagger.api.redirect;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.ViewControllerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
public class SwaggerApiReDirector implements WebMvcConfigurer {
#Override
public void addViewControllers(ViewControllerRegistry registry) {
registry.addRedirectViewController("/documentation/v2/api-docs", "/v2/api-docs");
registry.addRedirectViewController("/documentation/configuration/ui", "/configuration/ui");
registry.addRedirectViewController("/documentation/configuration/security", "/configuration/security");
registry.addRedirectViewController("/documentation/swagger-resources", "/swagger-resources");
registry.addRedirectViewController("/documentation/swagger-resources/configuration/ui", "/swagger-resources/configuration/ui");
registry.addRedirectViewController("/documentation", "/documentation/swagger-ui.html");
registry.addRedirectViewController("/documentation/", "/documentation/swagger-ui.html");
}
#Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
registry
.addResourceHandler("/documentation/**").addResourceLocations("classpath:/META-INF/resources/");
}
}
If you are using spring boot then please update
application.properties file and write here
server.servlet.context-path=/myapi
it will redirect you as you want.
Related
Spring boot: 2.3.3.RELEASE
Java: 11
I use webflux + RouterFunction + Thymeleaf and encounter the error "Could not resolve view with name 'index'".
index.html is under "resources/templates".
I put some source code looks important.
Are we not able to use Thymeleaf if we use "RouterFunction"?
Please feel free to put a comment if you need more detail.
######## handler ###########
#Component
public class ItemHandler {
public RouterFunction<ServerResponse> routes = route()
.path("/item", builder -> builder.GET("/", this::index))
.build();
public Mono<ServerResponse> index(ServerRequest request) {
Map<String, Object> attributes = new HashMap<>();
attributes.put("items", "Hello");
return ServerResponse.ok().contentType(MediaType.TEXT_HTML)
.render("index", attributes);
}
}
######## index.html ###########
<!DOCTYPE html>
<html lang="ja"
xmlns="http://www.w3.org/1999/xhtml"
xmlns:th="http://www.thymeleaf.org">
<head>
</head>
<body>
<h1>FluxTest</h1>
</body>
</html>
######## entry point ###########
#SpringBootApplication
public class DemoWebfluxApplication {
public static void main(String[] args) {
SpringApplication.run(DemoWebfluxApplication.class, args);
}
}
The default property in charge of handling the location of static files is spring.resources.static-locations.
The default values are /META-INF/resources/, /resources/, /static/, /public/. You can either override the default values or put your index.html in one of these locations.
I want to put our templates folder in a remote host like aws-s3, currently
using a custom urlTemplateResolver and using the thymeleaf replace tag.
#Configuration
public class SpringTemplateConfiguration {
private final SpringResourceTemplateResolver springResourceTemplateResolver;
#Value("${spring.thymeleaf.cache}")
Boolean springThymeleafCache;
public SpringTemplateConfiguration(SpringResourceTemplateResolver springResourceTemplateResolver) {
this.springResourceTemplateResolver = springResourceTemplateResolver;
}
#Bean
public SpringTemplateEngine templateEngine() {
SpringTemplateEngine templateEngine = new SpringTemplateEngine();
UrlTemplateResolver urlTemplateResolver = new UrlTemplateResolver();
urlTemplateResolver.setCacheable(springThymeleafCache); // explicit set cacheable, otherwise it will be always cached
templateEngine.addTemplateResolver(urlTemplateResolver);
templateEngine.addTemplateResolver(springResourceTemplateResolver);
return templateEngine;
}
}
and this is the thymeleaf template
<!DOCTYPE HTML>
<html xmlns:th="http://www.thymeleaf.org" th:replace="~{${url} :: html}">
</html>
is there another way to just use the templates folder from the remote host and just return the view name from the controller ??
It is possible to use another external location but not remote location which doesn't solve our problem.
I want to switch to the Micronaut framework from Spring Boot 2. And I am struggling with the Swagger settings.
In Spring Boot 2 project I have the following dependencies:
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger2</artifactId>
<version>2.6.1</version>
</dependency>
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger-ui</artifactId>
<version>2.6.1</version>
</dependency>
and SwaggerConfig.class:
#Configuration
#EnableSwagger2
public class SwaggerConfig {
#Bean
public Docket swagger() {
return new Docket(DocumentationType.SWAGGER_2)
.apiInfo(getApiInfo())
.select()
.apis(RequestHandlerSelectors.withClassAnnotation(RestController.class))
.paths(PathSelectors.any())
.build();
}
private ApiInfo getApiInfo() {
return new ApiInfo("test",
"",
"",
"",
new Contact("", "https://test.test", ""),
"",
"");
}
}
And it works perfectly starting up swagger-ui along with the Spring Boot 2 application.
Which dependencies should I add to maven and which classes should I create to obtain the same result for the Micronaut project?
Assuming the application is already created, add the following to you pom.xml
<dependency>
<groupId>io.swagger.core.v3</groupId>
<artifactId>swagger-annotations</artifactId>
<version>${swagger.version}</version>
<scope>compile</scope>
</dependency>
where the property swagger.version is set to 2.0.3
add the following to you annotationProcessorPaths in the maven-compiler-plugin
<path>
<groupId>io.micronaut.configuration</groupId>
<artifactId>micronaut-openapi</artifactId>
<version>${micronaut.version}</version>
</path>
Then add the following to your micronaut router section.
micronaut:
router:
static-resources:
swagger:
paths: classpath:META-INF/swagger
mapping: ${application.api.swagger.path}/**
This will expose your swagger/oas yml file that is generated during compile, provided you use the configuration below. You can of course change the ${application.api.swagger.path} to just be /api-docs/swagger or something to your liking.
As described in the docs, you can also do the following --features=swagger-java to add the above dependecies when you initially create the project.
If you want to render the api-specification from the application itself, then you need to add some more code. The following example is probably more fleshed out than it needs to be, but for my purpose the application serves as a central renderer for swagger/oas specifications.
First add a controller for you swagger needs, and annotate the controller with #Hidden to make sure it doesn't get processed by the annotation processor.
#Hidden
#Controller("/api")
public class SwaggerController {
#Inject
SwaggerConfig config;
#View("swagger/index")
#Get
public SwaggerConfig index() {
return config;
}
}
Then add the following configuration class, which binds the properties from below
#ConfigurationProperties(SwaggerConfig.PREFIX)
public class SwaggerConfig {
public static final String PREFIX = "application.api.swagger";
private String version;
private String layout;
private boolean deepLinking;
private List<URIConfig> urls;
public String getVersion() {
return version;
}
public void setVersion(String version) {
this.version = version;
}
public String getLayout() {
return layout;
}
public void setLayout(String layout) {
this.layout = layout;
}
public boolean isDeepLinking() {
return deepLinking;
}
public void setDeepLinking(boolean deepLinking) {
this.deepLinking = deepLinking;
}
public List<URIConfig> getUrls() {
return urls;
}
public void setUrls(List<URIConfig> urls) {
this.urls = urls;
}
#ConfigurationProperties(URIConfig.PREFIX)
public static class URIConfig {
static final String PREFIX = "urls";
private String name;
private String url;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getUrl() {
return url;
}
public void setUrl(String url) {
this.url = url;
}
}
}
The above config class binds the following configuration from application.yml, but needs to be placed before the micronaut specific configuration.
application:
api:
swagger:
path: /api-docs/swagger
version: 3.19.4
layout: StandaloneLayout
deepLinking: true
urls:
- name: ubw-rest
url: /api-docs/swagger/ubw-rest-0.1.yml
When that is done, add the following handlebars/mustache dependency to the pom
<dependency>
<groupId>com.github.jknack</groupId>
<artifactId>handlebars</artifactId>
<version>4.1.0</version>
<scope>runtime</scope>
</dependency>
Under the resources folder, create a folder named swagger, and then create an index.hbs file containing the following.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Swagger-ui</title>
<link rel="icon" type="image/png" href="https://unpkg.com/swagger-ui-dist#{{version}}/favicon-32x32.png">
<link rel="stylesheet" type="text/css" href="https://unpkg.com/swagger-ui-dist#{{version}}/swagger-ui.css">
<script src="https://unpkg.com/swagger-ui-dist#{{version}}/swagger-ui-standalone-preset.js"></script>
<script src="https://unpkg.com/swagger-ui-dist#{{version}}/swagger-ui-bundle.js"></script>
</head>
<body>
<div id="swagger-ui"></div>
<script>
window.onload = function() {
var ui = SwaggerUIBundle({
urls: [{{#each urls}}
{
name: "{{name}}",
url: "{{url}}"
}{{#unless #last}},{{/unless}}{{/each}}
],
dom_id: '#swagger-ui',
deepLinking: {{deepLinking}},
presets: [
SwaggerUIBundle.presets.apis,
SwaggerUIStandalonePreset
],
plugins: [
SwaggerUIBundle.plugins.DownloadUrl
],
layout: "{{layout}}"
});
window.ui = ui
}
</script>
</body>
</html>
Finally, in the application main class, add the #OpenApiDefinition annotation to enable the annotation processor to scan the entire appliaction.
#OpenAPIDefinition(
info = #Info(
title = "swagger-server",
version = "0.1",
description = "My API",
license = #License(name = "Apache 2.0")
)
)
public class Application {
public static void main(String[] args) {
Micronaut.run(Application.class);
}
}
A word of advice regarding the annotation processor as it stands in micronaut 1.0.0 is that public fields on an object will not be exposed, so you need to have getters/setters if you want to see the schema for the input or return values.
If you'd like to try out a running example of the above, I have a repo with the swagger server configuration located here https://github.com/frehov/micronaut-swagger-server which includes the ability to make a post with a list of url and name pairs to be rendered by Swagger.
Micronaut able to automatically generate Swagger YAML definitions from our controller and methods based on these annotations. Add swagger-annotations dependency pom.xml.
<dependency>
<groupId>io.swagger.core.v3</groupId>
<artifactId>swagger-annotations</artifactId>
<version>2.0.5</version>
</dependency>
Add #OpenAPIDefinition annotation to application's main class.
#OpenAPIDefinition(
info = #Info(
title = "my app",
version = "1.0",
description = "my api",
contact = #Contact(url = "http://something.com", name = "something", email = "something")
)
)
public class Application {
public static void main(String[] args) {
Micronaut.run(Application.class);
}
}
Micronaut generates a Swagger file at target/classes/META-INF/swagger/my-app-1.0.yml. We can expose it outside the application using an HTTP endpoint. Here's the appropriate configuration provided inside the application.yml file.
micronaut:
router:
static-resources:
swagger:
paths: classpath:META-INF/swagger
mapping: /swagger/**
Accesspath http://localhost:8080/swagger/my-app-1.0.yml.
In comparison to Spring Boot, we don't have projects like Swagger
SpringFox for Micronaut, so we need to copy the content to an online
editor in order to see the graphical representation of our Swagger
YAML.
Paste your content of my-app-1.0.yml to https://editor.swagger.io/ and add server to access Swagger UI.
Read Micronaut Doc- https://micronaut-projects.github.io/micronaut-openapi/latest/guide/index.html
I'm facing a Spring Boot configuration issue I can't deal with...
I'm trying to build an HelloWorld example for HbbTV with Spring Boot, so I need to serve my "index.html" page with mime-type="application/vnd.hbbtv.xhtml+xml"
my index.html will be accessed as a static page, for instance http://myserver.com/index.html?param=value.
with the following code, no matter how hard I try, I get a text/html content type.
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//HbbTV//1.1.1//EN" "http://www.hbbtv.org/dtd/HbbTV-1.1.1.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title>MyApp HBBTV</title>
<meta http-equiv="content-type" content="Content-Type: application/vnd.hbbtv.xhtml+xml; charset=UTF-8" />
</head>
<body>
...
</body>
</html>
So I tried to add a "home()" endpoint into a #Controller to force the correct mime-type, and that works.
#RestController
public class HbbTVController {
#RequestMapping(value = "/hbbtv", produces = "application/vnd.hbbtv.xhtml+xml")
String home() {
return "someText";
}
...
}
"That works" mean the jetty server serves me a html file with the correct content-type containing the test someText.
My next try were to replace the #RestController by #Controller (same produce config), and replace "someText" by index.html
#Controller
public class HbbTVController {
#RequestMapping(value = "/hbbtv", produces = "application/vnd.hbbtv.xhtml+xml")
String home() {
return "index.html";
}
...
}
Well, it serves my index.html correctly, but the Content-Type is wrong : text/html instead of application/vnd.hbbtv.xhtml+xml.
Furthermore, I don't want to access to myserver.com/hbbtv to get index.html, but directly to myserver.com/index.html.
How could I do that ?
Thanks...
Well, finally, I found the "Spring boot compliant solution". It's the same as Jamie Birch suggested, but realized with Spring mechanisms.
Spring Boot 1:
#Configuration
public class HbbtvMimeMapping implements EmbeddedServletContainerCustomizer {
#Override
public void customize(ConfigurableEmbeddedServletContainer container) {
MimeMappings mappings = new MimeMappings(MimeMappings.DEFAULT);
mappings.add("html", "application/vnd.hbbtv.xhtml+xml; charset=utf-8");
mappings.add("xhtml", "application/vnd.hbbtv.xhtml+xml; charset=utf-8");
container.setMimeMappings(mappings);
}
}
Spring Boot 2:
#Configuration
public class HbbtvMimeMapping implements WebServerFactoryCustomizer<ConfigurableServletWebServerFactory> {
#Override
public void customize(ConfigurableServletWebServerFactory factory) {
MimeMappings mappings = new MimeMappings(MimeMappings.DEFAULT);
mappings.add("html", "application/vnd.hbbtv.xhtml+xml; charset=utf-8");
mappings.add("xhtml", "application/vnd.hbbtv.xhtml+xml; charset=utf-8");
factory.setMimeMappings(mappings);
}
}
I'll extend comment providen by #Cheloute
Sping boot have default mime types
https://github.com/spring-projects/spring-boot/blob/master/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/web/server/MimeMappings.java
to override already setted mime type you should remove it first
Here is example what I used to override js and css
#Configuration
public class CustomServletConfiguration implements WebServerFactoryCustomizer<ConfigurableServletWebServerFactory> {
#Override
public void customize(ConfigurableServletWebServerFactory factory) {
MimeMappings mappings = new MimeMappings(MimeMappings.DEFAULT);
mappings.remove("js");
mappings.add("js", "application/javascript;charset=utf-8");
mappings.remove("css");
mappings.add("css", "text/css;charset=utf-8");
factory.setMimeMappings(mappings);
factory.setPort(9000);
}
}
Can't help with the Spring Boot side, but if you get no other responses, try these:
Set the file-type as .xhtml rather than .html.
Provide a mapping from .xhtml to MIME type application/vnd.hbbtv.xhtml+xml on your Jetty server's mime.properties file. A few more details on how to do that here.
I would like to make the connection between a websocket handshake \ session to a HttpSession object.
I've used the following handshake modification:
public class GetHttpSessionConfigurator extends ServerEndpointConfig.Configurator
{
#Override
public void modifyHandshake(ServerEndpointConfig config,
HandshakeRequest request,
HandshakeResponse response)
{
HttpSession httpSession = (HttpSession)request.getHttpSession();
config.getUserProperties().put(HttpSession.class.getName(),httpSession);
}
}
As mentioned in this post:
Accessing HttpSession from HttpServletRequest in a Web Socket #ServerEndpoint
Now,
For some reason on the hand shake, the (HttpSession)request.getHttpSession() returns null all the time.
here is my client side code:
<!DOCTYPE html>
<html>
<head>
<title>Testing websockets</title>
</head>
<body>
<div>
<input type="submit" value="Start" onclick="start()" />
</div>
<div id="messages"></div>
<script type="text/javascript">
var webSocket =
new WebSocket('ws://localhost:8080/com-byteslounge-websockets/websocket');
webSocket.onerror = function(event) {
onError(event)
};
webSocket.onopen = function(event) {
onOpen(event)
};
webSocket.onmessage = function(event) {
onMessage(event)
};
function onMessage(event) {
document.getElementById('messages').innerHTML
+= '<br />' + event.data;
}
function onOpen(event) {
document.getElementById('messages').innerHTML
= 'Connection established';
}
function onError(event) {
alert(event.data);
}
function start() {
webSocket.send('hello');
return false;
}
</script>
</body>
</html>
Any ideas why no session is created ?
Thanks
This is intended behaviour, but I agree it might be confusing. From the HandshakeRequest.getHttpSession javadoc:
/**
* Return a reference to the HttpSession that the web socket handshake that
* started this conversation was part of, if the implementation
* is part of a Java EE web container.
*
* #return the http session or {#code null} if either the websocket
* implementation is not part of a Java EE web container, or there is
* no HttpSession associated with the opening handshake request.
*/
Problem is, that HttpSession was not yet created for your client connection and WebSocket API implementation just asks whether there is something created and if not, it does not create it. What you need to do is call httpServletRequest.getSession() sometime before WebSocket impl filter is invoked (doFilter(...) is called).
This can be achieved for example by calling mentioned method in ServletRequestListener#requestInitalized or in different filter, etc..
Here is an impl for Pavel Bucek's Answer, after adding it, i got my session
import javax.servlet.ServletRequestEvent;
import javax.servlet.ServletRequestListener;
import javax.servlet.annotation.WebListener;
import javax.servlet.http.HttpServletRequest;
#WebListener
public class RequestListener implements ServletRequestListener {
#Override
public void requestDestroyed(ServletRequestEvent sre) {
// TODO Auto-generated method stub
}
#Override
public void requestInitialized(ServletRequestEvent sre) {
((HttpServletRequest) sre.getServletRequest()).getSession();
}
}
Building on #pavel-bucek 's answer, I wrote a simple HttpSessionInitializerFilter servlet filter.
Just download the jar from the "Releases" page and save it anywhere in the classpath, then add the following snippet to your web.xml descriptor (modify the url-pattern as needed):
<filter>
<filter-name>HttpSessionInitializerFilter</filter-name>
<filter-class>net.twentyonesolutions.servlet.filter.HttpSessionInitializerFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>HttpSessionInitializerFilter</filter-name>
<url-pattern>/ws/*</url-pattern>
</filter-mapping>
first: create a new class
import javax.servlet.ServletRequestEvent;
import javax.servlet.ServletRequestListener;
import javax.servlet.annotation.WebListener;
import javax.servlet.http.HttpServletRequest;
#WebListener
public class RequestListener implements ServletRequestListener {
#Override
public void requestDestroyed(ServletRequestEvent servletRequestEvent) {
}
#Override
public void requestInitialized(ServletRequestEvent servletRequestEvent) {
((HttpServletRequest)servletRequestEvent.getServletRequest()).getSession();
}
}
and then add the "ServletComponentScan" annotation on the App main:
#SpringBootApplication
#ServletComponentScan
public class Application {
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
}