Rest Controller 在我的 Springboot 中似乎不起作用

Question

我有一个 Springboot 项目，我通过从 mvn 存储库复制库而不使用 SPRING INITLZR 创建。

无论如何 Springboot main 似乎工作正常。 只是我的 Rest Controller 没有显示我想要的消息。

主类

@SpringBootApplication
public class MovieInfoServiceApplication {
    public static void main(String[] args) throws IOException, GeneralSecurityException, MessagingException {
                
            SpringApplication.run(MovieInfoServiceApplication.class, args); 
        }
}

RestController.class

@RestController
@RequestMapping("/")
public class MovieServiceRestController {

        @GetMapping("/hello")
        //@CrossOrigin(origins = "http://localhost:9005")
        public String hello() {
            return "movie-service-api: hello from MovieServiceRestController";  
        }
}

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.3.4.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.backend</groupId>
    <artifactId>movie-info-service</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>movie-info-service</name>
    <description>microservices about movie info</description>

    <properties>
        <java.version>11</java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web-services</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
            <exclusions>
                <exclusion>
                    <groupId>org.junit.vintage</groupId>
                    <artifactId>junit-vintage-engine</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

这是我访问“localhost:9005/hello”时得到的

Springboot 日志

2020-10-18 02:18:35.481  INFO 4347 --- [           main] com.gmailapijava.main.GmailAPIJavaMain   : No active profile set, falling back to default profiles: default
2020-10-18 02:18:38.779  INFO 4347 --- [           main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.ws.config.annotation.DelegatingWsConfiguration' of type [org.springframework.ws.config.annotation.DelegatingWsConfiguration$$EnhancerBySpringCGLIB$$e708c1d] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2020-10-18 02:18:39.142  INFO 4347 --- [           main] .w.s.a.s.AnnotationActionEndpointMapping : Supporting [WS-Addressing August 2004, WS-Addressing 1.0]
2020-10-18 02:18:40.286  INFO 4347 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat initialized with port(s): 9005 (http)
2020-10-18 02:18:40.307  INFO 4347 --- [           main] o.apache.catalina.core.StandardService   : Starting service [Tomcat]
2020-10-18 02:18:40.307  INFO 4347 --- [           main] org.apache.catalina.core.StandardEngine  : Starting Servlet engine: [Apache Tomcat/9.0.38]
2020-10-18 02:18:41.175  INFO 4347 --- [           main] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
2020-10-18 02:18:41.176  INFO 4347 --- [           main] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 5020 ms
2020-10-18 02:18:42.329  INFO 4347 --- [           main] o.s.s.concurrent.ThreadPoolTaskExecutor  : Initializing ExecutorService 'applicationTaskExecutor'
2020-10-18 02:18:43.369  INFO 4347 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat started on port(s): 9005 (http) with context path ''
2020-10-18 02:18:43.391  INFO 4347 --- [           main] com.gmailapijava.main.GmailAPIJavaMain   : Started GmailAPIJavaMain in 10.504 seconds (JVM running for 14.339)
2020-10-18 02:18:56.903  INFO 4347 --- [nio-9005-exec-1] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring DispatcherServlet 'dispatcherServlet'
2020-10-18 02:18:56.905  INFO 4347 --- [nio-9005-exec-1] o.s.web.servlet.DispatcherServlet        : Initializing Servlet 'dispatcherServlet'
2020-10-18 02:18:56.919  INFO 4347 --- [nio-9005-exec-1] o.s.web.servlet.DispatcherServlet        : Completed initialization in 14 ms

Answer 1

SpringApplication.run(GmailAPIJavaMain.class, args); 

应该

SpringApplication.run(MovieInfoServiceApplication.class, args);

还要检查是否正在扫描控制器包。

Answer 2

像这样试试

@RestController
public class MovieServiceRestController {

        @GetMapping("/hello")
        //@CrossOrigin(origins = "http://localhost:9005")
        public String hello() {
            return "movie-service-api: hello from MovieServiceRestController";  
        }
}