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Controller Mapping is not working in a spring multi-module project

I am creating a multi-module project in a spring boot application and have an internal library which is created for all the common services,repository etc.
Then I have added this internal library as a dependency to the parent project .
#EnableDiscoveryClient
#SpringBootApplication
#ComponentScan({"com.testlab.internal"})
public class ProfileServiceApplication {
#LoadBalanced
#Bean
RestTemplate restTemplate() {
return new RestTemplate();
}
public static void main(String[] args) {
SpringApplication.run(ProfileServiceApplication.class , args);
}
}
Now after this change all the controller mapping stopped working, i.e
spring is not able find the handle method for any mapping .
But after adding a test controller in the ProfileServiceApplication class it worked seamlessly .
#EnableDiscoveryClient
#SpringBootApplication
#ComponentScan({"com.testlab.internal"})
public class ProfileServiceApplication {
#LoadBalanced
#Bean
RestTemplate restTemplate() {
return new RestTemplate();
}
public static void main(String[] args) {
SpringApplication.run(ProfileServiceApplication.class , args);
}
#GetMapping("/")
public String home() {
return "hello";
}
}
This is working.
And my controller looks like this.
#Slf4j
#RestController
#RequestMapping
public class PringConversationController {
#GetMapping("/test")
public String home() {
return "hello";
}
}
Thanks for any help in advance

404 Not Found after deploy java web application .war file

I'm wrote a web application in java using Spring framework. Tested it and deployed to remote tomcat server. After deploying I have message OK - Started application at context path [/proxynator]. But, if I use links like http://109.206.178.66:8080/proxynator/ and http://109.206.178.66:8080/proxynator/proxynator/test I have 404 – Not Found and Description: The origin server did not find a current representation for the target resource or is not willing to disclose that one exists.
In Application I have starter class
#SpringBootApplication
public class Application {
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
}
and controller
#RestController
#RequestMapping("/proxynator")
public class MainController {
#Autowired
private ProxyRepo proxyRepo;
#Autowired
private CountryRepo countryRepo;
#RequestMapping("/countries")
#ResponseBody
public List<Country> findCountries() {
return countryRepo.findAll();
}
#RequestMapping("/test")
#ResponseBody
public String testMethod() {
return "HELLO";
}
}
I don't know, why I have this problem, because I setting up my tomcat server right, path to my controller is right and application on server is running.
Any ideas how to solve it?
UPD
I was changed my controller like:
#RestController
public class MainController {
#Autowired
private CountryRepo countryRepo;
#RequestMapping("/countries")
#ResponseBody
public List<Country> findCountries() {
return countryRepo.findAll();
}
#RequestMapping("/")
#ResponseBody
public String testMethod() {
return "HELLO";
}
}
And now my enter point is / that calling testMethod(), but it doesn't working too.

To solve this problem I was extends SpringBootServletInitializer and override configure method`
#Override
override fun configure(application: SpringApplicationBuilder?):
SpringApplicationBuilder {
return super.configure(application)
}
and I changed project structure like in official documentation. And now it works good.
PS
I was rewrite project to Kotlin

Spring boot not displaying first view

I'm building a spring boot application. My problem is that when I run the project, my login page is not shown. This is my code:
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
#RestController
public class RestLogin {
#RequestMapping("/")
public String login() {
return "login";
}
}
I get only a white page and "login" is written in it. When I try to change the #RestController with #Controller I get this GET http://localhost:8080/ 404 (). My login.html page is located under the webapp>tpl>login.html
How can I display my login page?
Edit
This is my application class
#SpringBootApplication
public class ExampleApplication extends SpringBootServletInitializer {
private static Logger logger = LoggerFactory.getLogger(ExampleApplication.class);
#Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder builder) {
return builder.sources(ExampleApplication.class);
}
public static void main(String[] args) {
SpringApplication.run(ExampleApplication.class, args);
}
}

I dont know your configuration but:
#Configuration
#EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {
#Override
protected void configure(HttpSecurity http) throws Exception {
http.httpBasic().and().authorizeRequests()
.antMatchers("/**").permitAll();
http.authorizeRequests().antMatchers("/**").permitAll();
}
}
In the Application.properties file add:
spring.mvc.view.suffix: .html
Change #RestController to #Controller for RestLogin class. Also put your html file inside the static folder inside resources folder.

You need an application class with a main method. See this tutorial.
Here's a snippet:
package hello;
import java.util.Arrays;
import org.springframework.boot.CommandLineRunner;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.Bean;
#SpringBootApplication
public class Application {
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
#Bean
public CommandLineRunner commandLineRunner(ApplicationContext ctx) {
return args -> {
System.out.println("Let's inspect the beans provided by Spring Boot:");
String[] beanNames = ctx.getBeanDefinitionNames();
Arrays.sort(beanNames);
for (String beanName : beanNames) {
System.out.println(beanName);
}
};
}
}

This is the normal behavior.
New version of Spring web comes with #RestController annotation which nothing but #Controller + #ResponseBody. So when you have a return statement in a method you must use #RestController or annotate your method with #ResponseBody.
Here the problem is that Spring don't know a lot about the http method type, can you please try to use #GetMapping("/") to combinbe path and method at the same time.

According to your posted code and your description, you're getting an expected behavior.
When you annotate your controller with #RestController, that means that your methods on that controller will try to return their result as JSON.
According to your code:
#RestController
public class RestLogin {
#RequestMapping("/")
public String login() {
return "login";
}
}
You're returning the String "login", that's why you're getting empty white page with the word login as JSON
If you will change the #RestController to #Controller then it no longer will return your string as JSON,
but Spring will try to figure out from the that "login" string a view, and for that you'll need to add a view resolver bean to your project.

developing simple web application using SPRING boot

I am developing a simple web application using Spring boot,
Please find the below code.
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.bind.annotation.RequestMapping;
#RestController
public class HelloApplication {
#RequestMapping("/")
public String index() {
return "Greetings from Spring Boot!";
}
}
when i am trying to Run, i am not getting the option to run.. in run as ..
please find the screen shots

Your class should be :
#Controller
#SpringBootApplication
public class SampleController {
public static void main(String[] args) {
SpringApplication.run(SampleController.class, args);
}
#RequestMapping
#ResponseBody
String home() {
return "hello world";
}
}

How to configure #RestController?

Can somebody tell me how to configure #RestController?
I do this :
#RestController
#EnableAutoConfiguration
public class Application {
#RequestMapping("/test.htm")
#ResponseBody
String home() {
return "Hello Worlds!";
}
public static void main(String[] args) throws Exception {
SpringApplication.run(Application.class, args);
}
}
#Controller
public class MusicControler {
class Test{
String name;
int age;
}
#RequestMapping(value = "/MyController")
public Test MyController() {
Test test = new Test();
test.name = "zl.shi";
test.age = 16;
return test;
}
}
When I request /test.htm, it is ok but I get response 404 for /testController.htm. Can someone help me about it?

use following code to create rest controller
#RestController
#RequestMapping("/service/")
public class Application {
#RequestMapping(value = "/getmemberdetail/{id}/{info}", method = RequestMethod.GET, produces = { "application/json" })
public ResponseEntity<String> getuserdetail(#PathVariable int portalType,#PathVariable("id") int id,#PathVariable("info") String info) throws JsonProcessingException, ParseException{}
}

if you want to know how to use it you should read about it
Difference between spring #Controller and #RestController annotation
when you make starter-project spring you should make another class where you are going to put you controller don't forget RestController annotation or the controller annotation ( as best practice you shouldn't use the starter class of spring boot ) i hope this helps you
ps don't tag spring-mvc and spring-boot it's not the same thing