Контроллер Spring Boot не работает и не возвращается ресурс, не найденный ошибка ⇐ JAVA

[Anonymous]

Я работал над простой API REST с Spring Boot и получил ошибку, как показано ниже. < /p>
Whitelabel Error Page
This application has no explicit mapping for /error, so you are seeing this as a fallback.

Tue Jan 30 15:10:50 SGT 2024
There was an unexpected error (type=Not Found, status=404).
No static resource api/v1/courses.
org.springframework.web.servlet.resource.NoResourceFoundException: No static resource api/v1/courses.
at org.springframework.web.servlet.resource.ResourceHttpRequestHandler.handleRequest(ResourceHttpRequestHandler.java:585)
at org.springframework.web.servlet.mvc.HttpRequestHandlerAdapter.handle(HttpRequestHandlerAdapter.java:52)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1089)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:979)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1014)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:903)
at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:564)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:885)
at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:658)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:205)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149)
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149)
at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:167)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:90)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:482)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:115)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:93)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:340)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:391)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:896)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1744)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52)
at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191)
at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.base/java.lang.Thread.run(Thread.java:833)

Я проверил некоторые сообщения, и общее решение состоит в том, чтобы добавить @componentscan , но я гарантировал, что мои пакеты были в правильной структуре для сканирования компонентов по умолчанию.
Это мой контроллер.package dev.shengxue.SpringBootNeo4j.controllers;

import dev.shengxue.SpringBootNeo4j.models.Course;
import dev.shengxue.SpringBootNeo4j.services.CourseService;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;

@RestController
@RequestMapping("/api/v1/courses")
public class CourseController {
private final CourseService courseService;

public CourseController(CourseService courseService) {
this.courseService = courseService;
}

@GetMapping("/")
public ResponseEntity courseIndex(){
return new ResponseEntity(courseService.getAllCourses(), HttpStatus.OK);
}
}
< /code>
файл моего приложения. < /p>
package dev.shengxue.SpringBootNeo4j;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class SpringBootNeo4jApplication {

public static void main(String[] args) {
SpringApplication.run(SpringBootNeo4jApplication.class, args);
}

}
< /code>
и мой файл pom. < /p>


4.0.0

org.springframework.boot
spring-boot-starter-parent
3.2.2


dev.shengxue
SpringBootNeo4j
0.0.1-SNAPSHOT
SpringBootNeo4j
Tutorial Project for Neo4j

17



org.springframework.boot
spring-boot-starter-web



org.springframework.boot
spring-boot-starter-data-neo4j



org.neo4j.driver
neo4j-java-driver



me.paulschwarz
spring-dotenv
3.0.0



org.springframework.boot
spring-boot-devtools
runtime
true


org.springframework.boot
spring-boot-starter-test
test






org.springframework.boot
spring-boot-maven-plugin





< /code>
Процесс сборки, кажется, работает просто хорошо < /p>
2024-01-30T15:09:21.063+08:00 INFO 24952 --- [ restartedMain] d.s.S.SpringBootNeo4jApplication : Starting SpringBootNeo4jApplication using Java 17.0.6 with PID 24952 (C:\Users\DELL\Documents\IntelliJ Projects\SpringBootNeo4j\target\classes started by DELL in C:\Users\DELL\Documents\IntelliJ Projects\SpringBootNeo4j)
2024-01-30T15:09:21.070+08:00 INFO 24952 --- [ restartedMain] d.s.S.SpringBootNeo4jApplication : No active profile set, falling back to 1 default profile: "default"
2024-01-30T15:09:21.178+08:00 INFO 24952 --- [ restartedMain] .e.DevToolsPropertyDefaultsPostProcessor : Devtools property defaults active! Set 'spring.devtools.add-properties' to 'false' to disable
2024-01-30T15:09:21.178+08:00 INFO 24952 --- [ restartedMain] .e.DevToolsPropertyDefaultsPostProcessor : For additional web related logging consider setting the 'logging.level.web' property to 'DEBUG'
2024-01-30T15:09:22.364+08:00 INFO 24952 --- [ restartedMain] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data Neo4j repositories in DEFAULT mode.
2024-01-30T15:09:22.604+08:00 INFO 24952 --- [ restartedMain] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 230 ms. Found 0 Neo4j repository interfaces.
2024-01-30T15:09:22.619+08:00 INFO 24952 --- [ restartedMain] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data Neo4j repositories in DEFAULT mode.
2024-01-30T15:09:22.651+08:00 INFO 24952 --- [ restartedMain] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 31 ms. Found 1 Neo4j repository interface.
2024-01-30T15:09:23.732+08:00 INFO 24952 --- [ restartedMain] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port 8080 (http)
2024-01-30T15:09:23.749+08:00 INFO 24952 --- [ restartedMain] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2024-01-30T15:09:23.750+08:00 INFO 24952 --- [ restartedMain] o.apache.catalina.core.StandardEngine : Starting Servlet engine: [Apache Tomcat/10.1.18]
2024-01-30T15:09:23.833+08:00 INFO 24952 --- [ restartedMain] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2024-01-30T15:09:23.835+08:00 INFO 24952 --- [ restartedMain] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 2655 ms
2024-01-30T15:09:24.396+08:00 INFO 24952 --- [ restartedMain] o.neo4j.driver.internal.DriverFactory : Routing driver instance 1784883759 created for server address ea49c25e.databases.neo4j.io:7687
2024-01-30T15:09:24.612+08:00 WARN 24952 --- [ restartedMain] o.s.d.n.c.mapping.Neo4jPersistentEntity : The entity dev.shengxue.SpringBootNeo4j.models.Course is using a Long value for storing internally generated Neo4j ids. The Neo4j internal Long Ids are deprecated, please consider using an external ID generator.
2024-01-30T15:09:24.656+08:00 INFO 24952 --- [ restartedMain] o.s.b.d.a.OptionalLiveReloadServer : LiveReload server is running on port 35729
2024-01-30T15:09:25.496+08:00 INFO 24952 --- [ restartedMain] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat started on port 8080 (http) with context path ''
2024-01-30T15:09:25.515+08:00 INFO 24952 --- [ restartedMain] d.s.S.SpringBootNeo4jApplication : Started SpringBootNeo4jApplication in 5.097 seconds (process running for 5.752)
2024-01-30T15:09:31.664+08:00 INFO 24952 --- [nio-8080-exec-1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring DispatcherServlet 'dispatcherServlet'
2024-01-30T15:09:31.664+08:00 INFO 24952 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet : Initializing Servlet 'dispatcherServlet'
2024-01-30T15:09:31.666+08:00 INFO 24952 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet : Completed initialization in 2 ms


Подробнее здесь: https://stackoverflow.com/questions/779 ... ound-error