I have two projects setting up Springboot in it, now, I am going to run these two springboot on eclipse, I set up the port 8888 for projectB.
Here is my projectB controller with RequestMapping.
#RequestMapping(value = "test", method = RequestMethod.GET)
public #ResponseBody String test() {
return "testtesttest";
}
I need to call a url from jquery method that url is to read the respose from a controller in projectB.
how can I call this url ??
I tried "http://localhost:8888/test" and "http://127.0.0.1:8888/test"
but I did not get anything from the response.
The error shows up as :
please give me the solution for this
very appreciated.
Add below code in your application's main class. This configures your web mvc cors mapping to allow request from " * "
#SpringBootApplication
public class Application {
#Configuration
public class MyConfiguration {
#Bean
public WebMvcConfigurer corsConfigurer() {
return new WebMvcConfigurerAdapter() {
#Override
public void addCorsMappings(CorsRegistry registry) {
logger.info("Added CORS config");
registry.addMapping("/**").allowedOrigins("*").maxAge(3600);
}
};
}
}
}
Related
I have this mapping:
User 1----------------------------* Expertises
I'm using the controller SpringBoot, My contoller is
#RestController
#CrossOrigin(origins = "http://localhost:4200", "http://localhost:6227")
#RequestMapping("/api/auth")
public class UserController
{
#PostMapping("/signup/{expertises}")
public ResponseEntity<String> registerUser(#Valid #RequestBody SignUpForm signUpRequest, #PathVariable List<String> expertises)
{
}
}
I add the annotation #CrossOrigin to all the repositories
#CrossOrigin(origins = {"http://localhost:4200", "http://localhost:6227"}, methods = { RequestMethod.GET, RequestMethod.POST, RequestMethod.DELETE }, maxAge = 3600)
#Repository
public interface UserRepository extends JpaRepository<User, Long> {}
The main class is:
#SpringBootApplication
public class SpringBootJwtAuthenticationApplication {
public static void main(String[] args) {
SpringApplication.run(SpringBootJwtAuthenticationApplication.class, args);
}
#Bean
public WebMvcConfigurer configurer()
{
return new WebMvcConfigurer()
{
#Override
public void addCorsMappings(CorsRegistry registry)
{
registry.addMapping("/*")
.allowedOrigins("http://localhost:4200", "http://localhost:6227");
}
};
}
}
I added the file MyConfiguration (as Sir Ananthapadmanabhan proposed)
Front-End (Angular6)
So I want to add a list of expertises to one user using this method:
onSubmit()
{
this.submitted = true;
console.log('---------SelectedExpertise:' + this.selectedExpertiseCheckBox);
this.userService.signUpUser(this.user,
this.selectedExpertiseCheckBox)
.subscribe(data => console.log("---------------Create user:" + data)
,error => console.log(error));
this.user = new User();
}
where
signUpUser(value: any, listExp: String[]): Observable<Object>
{
return this.http.post(`${this.baseUrl}/signup/${listExp}`, value);
}
I can't do that cause adding the list of expertises. That produces this error
Have you please any idea about solving that ?.
Thanks.
As indicated on the console; it was a problem with CORS.
But in reality, it wasn't.
In fact, this bug is caused by a bad use of localStorage with front-end:
the list of strings have to be called like that:
var storedExpertises = JSON.parse(localStorage.getItem("explib"));
and not like that:
localStorage.getItem("explib")
Big thanks Sir #Ananthapadmanabhan for your help and advices.
You have enabled CORS for the endpoint http://localhost:4200 on port address 4200. But it seems you are running the angular 6 app separately on local and the request is being made from the port address 6227 , which might be causing the issue since the CORS policy that you have enabled only allows same origin. Try adding the following in CORS :
#CrossOrigin(origins = "http://localhost:6227")
and if you are still having issues with , Cross-Origin Request Blocked (Reason: CORS header ‘Access-Control-Allow-Origin’ missing) then check this post :
CORS policy conflict in Spring boot
Even through you have enabled the CORS. The requests from different ports will not go through. You need to enable HTTP.OPTIONS.
I have a simple service built in Spring Boot that has a simple API. I've added the springfox libraries to use swagger and the swagger UI, but I do not want my application to serve the UI also. I just want to get the definition from from /api/v1/api-docs
How do I switch off the UI part? Not adding swagger-ui library as a dependency doesn't remove the UI for some reason.
You can block the UI and return HTTP code 404. Something similar to below
#Controller //note - this is a spring-boot controller, not #RestController
public class HomeController {
#RequestMapping ("/swagger/api/v1/api-docs")
public String home(HttpServletRequest request) {
throw new ResourceNotFoundException(); //Custom Solution
or
throw new NoSuchRequestHandlingMethodException(request);
}
}
#ResponseStatus(value = HttpStatus.NOT_FOUND)
public class ResourceNotFoundException extends RuntimeException {
...
}
If you are using Spring Boot
#SpringBootApplication
public class MyApp {
public static void main(String[] args) {
SpringApplication.run(MyApp.class, args);
}
#Bean
RouterFunction<ServerResponse> routerFunction() {
return route(GET("/swagger"), req ->
ServerResponse.temporaryRedirect("<some 404 page>").build());
}
}
Let's say my website name is: foo.com
When a user types foo.com, I want to show index.html.
When a user types foo.com/something, I want the server catches the request at the controller.
Here is what I did in the HomeController:
#Controller
public class HomeController {
#RequestMapping(value={"/"}, method=RequestMethod.GET)
public String getHome() {
return "index.html";
}
}
And, the CustomController should catch the request
#Controller
public class CustomController {
#RequestMapping(value={"/{custom}"}, method=RequestMethod.GET)
public String getCustom(#PathVariable String custom) {
// Do something here..
}
}
However, it throws an error: Circular view path [index.html]: would dispatch back to the current handler URL [/index.html] again. It's because the CustomController catches the GET request: foo.com/index.html after the HomeController returns the string: index.html.
I did some research like this:
public class WebMvcConfiguration extends WebMvcConfigurerAdapter {
#Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
registry.setOrder(Ordered.HIGHEST_PRECEDENCE);
registry.addResourceHandler("/assets/**").addResourceLocations("classpath:/assets"); // My asset
registry.addResourceHandler("index.html").addResourceLocations("file:/index.html");
} // It's not working
#Override
public void addViewControllers(ViewControllerRegistry registry) {
registry.addViewController("/").setViewName("forward:/" + FileNames.INDEX);
} // This also not working
}
And changing the annotation from #Controller to #RestController in the CustomController is not an option.
Also, I don't have JSP files in the project - they are plain *.html files.
I am using Spring 1.3.3 release, so please help me out.
This solution works with ui-router (AngularJS library). Also, you have to change $resourceProvider setting:
// In your app module config
$resourceProvider.defaults.stripTrailingSlashes = false;
Then, in the Spring server codes, you can do this:
#RequestMapping(value = "/{custom:[^\\.]*}")
public String redirect(#PathVariable String custom) {
// Do something here...
return "forward:/";
}
Found the solution at this link: https://spring.io/blog/2015/05/13/modularizing-the-client-angular-js-and-spring-security-part-vii
I have a Spring Boot web application which is meant to serve both static and controller based (ModelAndView) pages. Problem is that a controller can serve something like /{string} and a static page must be served with /test.
The problem is that the controller mapping takes precedence, and I need to avoid that. If the user hits /test, he must be forwarded to the test.html static page.
I tried to use the order property of ViewControllerRegistry in this way, with no success:
#Configuration
public class MyWebMvcConfig extends WebMvcConfigurerAdapter {
#Override
public void addViewControllers(ViewControllerRegistry registry) {
registry.addViewController("/test").setViewName("forward:/test.html");
registry.setOrder(Ordered.HIGHEST_PRECEDENCE); // but I tried with 0 and -1 as well: annotated controllers should have order equals to 0
}
}
This is my SpringBootApplication class:
#SpringBootApplication
public class VipApplication {
public static void main(String[] args) {
SpringApplication.run(VipApplication.class, args);
}
}
And this is the controller code:
#Controller
public class VipController {
#RequestMapping(value = "/{string}")
public ModelAndView vip(#PathVariable("string") String string) {
ModelAndView mv = new ModelAndView("mypage");
return mv;
}
}
How can I reorder the mappings to make sure static pages are considered before annotated controllers?
(I'm not sure, but) I suggest to override WebMvcConfigurerAdapter.addResourceHandlers() method and configure order of resource handler by invoking ResourceHandlerRegistry.setOrder()
I am using Spring MVC 4.1, and this is the core config:
#EnableWebMvc
#Configuration
#ComponentScan(basePackages = {""})
public class MvcConfig extends WebMvcConfigurerAdapter {
#Override
public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {
configurer.enable();
}
public void configurePathMatch(PathMatchConfigurer configurer) {
configurer.setUseSuffixPatternMatch(true);
configurer.setUseTrailingSlashMatch(false);
}
....
}
#Controller
#RequestMapping("/api/deps")
public class DepartmentCtrl {
#RequestMapping(value = "", method = RequestMethod.GET)
public Result index() {
return ...;
}
}
While when I open this the url:
/context/api/deps
I will get the result as expected, however once I will get a 404 once I visit the link:
/context/api/deps/
As shown, I have config the PathMatchConfigurer by setUseTrailingSlashMatch(false) , but it seems that it does not work.
Is there anything wrong in my configuration?
use this:
setUseTrailingSlashMatch(true)
According to javadoc, setUseTrailingSlashMatch determines:
Whether to match to URLs irrespective of the presence of a trailing
slash. If enabled a method mapped to "/users" also matches to
"/users/".
Honestly, there is no need for this piece of configuration, since its enabled by default and you by passing false to it, disabled it.
What happens when you pass "/" in the value attribute of RequestMapping Annotation?