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Spring isn't loading CSS and gives a 404 when the page is loaded

I'm running a Spring (not Boot) web app and it's finding my JSP views properly, but my CSS isn't being found for some reason. To be clear, the page is loading with the necessary elements, but any CSS styling from classes in my .css files is not being applied. The structure for the CSS file I'm trying to use is src/main/resources/css/style.css.
Below is the relevant code for my AppConfig class:
public class AppConfig implements WebMvcConfigurer {
...
public void addResourceHandlers(ResourceHandlerRegistry registry) {
registry.addResourceHandler("/css/**")
.addResourceLocations("/css/");
}
...
}
And the JSP header:
<link type="text/css" rel="stylesheet" href="${pageContext.request.contextPath}/css/style.css"/>
I've already checked some other questions asking after this issue and have had no luck. Several of them advised checking the config file for Spring Security to ensure that permission is granted for all requests using the resource file but based on what I can see, it shouldn't be prohibiting the CSS from being loaded:
#Configuration
#EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {
#Autowired
private UserService userService;
#Bean
public BCryptPasswordEncoder encoder() {
return new BCryptPasswordEncoder();
}
#Override
protected void configure(AuthenticationManagerBuilder auth) throws Exception {
auth.authenticationProvider(authenticationProvider());
}
#Override
protected void configure(HttpSecurity http) throws Exception {
}
#Bean
public DaoAuthenticationProvider authenticationProvider() {
DaoAuthenticationProvider authenticationProvider = new DaoAuthenticationProvider();
authenticationProvider.setPasswordEncoder(encoder());
authenticationProvider.setUserDetailsService(userService);
return authenticationProvider;
}
}

For a non-Spring Boot project your css folder should be not in src/main/resources but in src/main/webapp.

You need to tell spring security to ignore css files by overriding this method in WebSecurityConfigurerAdapter:
#Override
public void configure(WebSecurity web) throws Exception {
web.ignoring().antMatchers("/resources/**", "/static/**", "/css/**", "/js/**", "/images/**","/vendor/**","/fonts/**").anyRequest();
}

The configuration that you posted in your question:
public class AppConfig implements WebMvcConfigurer {
...
public void addResourceHandlers(ResourceHandlerRegistry registry) {
registry.addResourceHandler("/css/**")
.addResourceLocations("/css/");
}
...
}
tells Spring MVC to serve /css/style.css from the css directory in your context directory. If it doesn't exist, you get a 404.
If you want to serve the file from the classpath (which is what your question seems to imply), then you should do this instead:
public class AppConfig implements WebMvcConfigurer {
...
public void addResourceHandlers(ResourceHandlerRegistry registry) {
registry.addResourceHandler("/css/**")
.addResourceLocations("classpath:/resources/css/");
}
...
}
See the documentation of ResourceHandlerRegistry for more details.

Controller doesn't work with spring

I use spring mvc with spring configuration (without xml). And it seems like IDEA doesn't go to controller code. Maybe somewhere path is incorrect so #RequestMapping doesn't work. But i can't understand where exactly.
Here is my Controller
#Controller
public class MainController {
#RequestMapping(value = "/" , method = RequestMethod.GET)
public String home() {
return "index";
}
#RequestMapping(value = "welcome", method = RequestMethod.GET)
public String welcome(Model m){
m.addAttribute("name","lol kkeke");
return "index2";
}
}
WebMvcConfig
#Configuration
#ComponentScan("com.chat")
#EnableWebMvc
public class WebMVCConfig extends WebMvcConfigurerAdapter {
#Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
registry.addResourceHandler("/scripts/**").addResourceLocations("/scripts/");
registry.addResourceHandler("/styles/**").addResourceLocations("/styles/");
registry.addResourceHandler("/images/**").addResourceLocations("/images/");
registry.addResourceHandler("/fonts/**").addResourceLocations("/fonts/");
registry.addResourceHandler("/pages/**").addResourceLocations("/views/");
}
#Override
public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {
configurer.enable();
}
#Override
public void addViewControllers(ViewControllerRegistry registry) {
registry.addViewController("/").setViewName("/index.jsp");
}
#Bean
public InternalResourceViewResolver viewResolver() {
InternalResourceViewResolver resolver = new InternalResourceViewResolver();
resolver.setPrefix("/");
resolver.setSuffix(".jsp");
resolver.setViewClass(JstlView.class);
return resolver;
}
}

So.. I solved a problem. It was in Controller - path. My Idea automatically change path from com.chat.controller to c.c.controller. So i rebuild project structure to com.chat.controller.Controller.class; and com.chat.config.Configuration.class.
Also, i found the next article about similar trouble. May be it will help somebody! How do I map Spring MVC controller to a uri with and without trailing slash?

Unable to Map static resource correctly

My Project structure is as follows
|src
|--main
|---webapp
|----static
|-----CSS
|-----HTML
|-----js
I am trying to return an HTML resource via my controller for links that are directly under root there is no issue but for other links, I am facing problems.
Here is my controller
#Controller
public class HtmlServer {
#RequestMapping({"/", "/index", "/index.html", "/index.jsp", "/home","/home.html","/home.jsp"})
public ModelAndView index() {
return new ModelAndView("html/index.html");
}
#RequestMapping(method = RequestMethod.GET, value = "/support/{id}/{accessToken}")
public ModelAndView start(#PathVariable Long id, #PathVariable String accessToken) {
return new ModelAndView("html/index.html");
}
}
Here is my WebMvcConfigurerAdapter extending class
#Component
#ConfigurationProperties
#Configuration
#EnableWebMvc
public class ApplicationConfig extends WebMvcConfigurerAdapter {
#Bean
public InternalResourceViewResolver internalResourceViewResolver(){
InternalResourceViewResolver internalResourceViewResolver = new InternalResourceViewResolver();
internalResourceViewResolver.setPrefix("static/");
return internalResourceViewResolver;
}
#Override
public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {
configurer.enable();
}
#Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
registry.addResourceHandler("/js/**").addResourceLocations("static/js/")
.setCachePeriod(0);
registry.addResourceHandler("/css/**").addResourceLocations("static/css/")
.setCachePeriod(0);
registry.addResourceHandler("/support/**").addResourceLocations("/static/")
.setCachePeriod(0);
}
}
When I open / or /index.html the controller returns the given value and in return i am served the correct resource.
But when I try to use /support/1/xsdda I am mapped to /support/1/static/html/index.html Can someone explain the internals and logically point out my mistake.
Thanks!

Create folder WEB-INF inside webapp and put your HTML folder inside it
set prefix of resolver to /WEB-INF/HTML/
set suffix of resolver to .html
call it by returning "index"
The Servlet 2.4 specification says this about WEB-INF (page 70):
A special directory exists within the application hierarchy named
WEB-INF. This directory contains all things related to the
application that aren’t in the document root of the application. The
WEB-INF node is not part of the public document tree of the
application. No file contained in the WEB-INF directory may be served
directly to a client by the container. However, the contents of the
WEB-INF directory are visible to servlet code using the getResource
and getResourceAsStream method calls on the ServletContext, and may
be exposed using the RequestDispatcher calls.

access static html page from jar file using spring

I want to call home.html file present in jar under /WEB-INF/lib using spring.
Below is configuration class
#Configuration
#ComponentScan("com.barclays.mobile.gateway.controller")
#EnableWebMvc
public class MvcConfig extends WebMvcConfigurerAdapter{
#Bean(name = "viewResolver")
public InternalResourceViewResolver getViewResolver() {
InternalResourceViewResolver viewResolver = new InternalResourceViewResolver();
viewResolver.setPrefix("/WEB-INF/");
viewResolver.setSuffix(".html");
return viewResolver;
}
#Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
registry.addResourceHandler("/component/**").addResourceLocations("classpath:/app/component/*");
registry.addResourceHandler("/assets/**").addResourceLocations("classpath:/app/assets/*");
registry.addResourceHandler("/home/**").addResourceLocations("classpath:/app/*");
}
}
Below is controller:
#Controller
public class StaffController {
#RequestMapping(value = "/home", method = RequestMethod.GET)
public String home() {
return "home";
}
}
Please suggest how to do this.?

remove / from /home, I guess that is the problem

Spring MVC - Return static page

I'm struggling with trying to return a static web page from a spring MVC controller.
I followed this tutorial: http://www.tutorialspoint.com/spring/spring_static_pages_example.htm and yet it still isn't working.
This is how I defined the configuration (used configuration class):
#Configuration
#EnableWebMvc
#EnableTransactionManagement
#ComponentScan({ "com.my.web.api"})
#ImportResource("classpath:db-context.xml")
public class ApiServletConfig extends WebMvcConfigurerAdapter {
#Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
registry.addResourceHandler("/resources/**").addResourceLocations("/resources/");
}
#Bean
public InternalResourceViewResolver internalResourceViewResolver() {
InternalResourceViewResolver internalResourceViewResolver = new InternalResourceViewResolver();
internalResourceViewResolver.setPrefix("/resources/");
internalResourceViewResolver.setSuffix("*.html");
return internalResourceViewResolver;
}
}
The controller method:
#RequestMapping(value = "/{id}/view", method = RequestMethod.GET, produces = "text/html")
#ResponseBody
public String getPostByIdHtml( #PathVariable String id) throws IOException {
return "/resources/Post.html";
}
Under the webapp folder there's a folder named "resources" and under which there's a file "Post.html". What else should I do in order to get this page returned as HTML instead of getting the string "resources/Post.html"?
Thanks for the help.

Please remove the annotation #ResponseBody. Your browser should be redirected to the desired page once the annotation is removed.
This annotation indicates that the value returned by a method in your controller should be bound to the web response body. In your case, you do not need that: you need Spring to render page /resources/Post.html, so no need for this annotation.