SpringBoot의 RequestMapping 작동하지 않음

응용 프로그램을 빌드하기위한 Spring Boot를 배우고 있습니다. 응용 프로그램과 다른 패키지에있는 컨트롤러로 첫 번째 스프링 부트 응용 프로그램을 만들려고합니다. Tomcat 인스턴스가 나타나지만 URI에 등록 된 RestController에 요청이 도달하지 않습니다. 바람둥이가 시작될 때SpringBoot의 RequestMapping 작동하지 않음

package com.spring.boot; 

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

@SpringBootApplication(scanBasePackages = {"com.spring.controllers"}) 
public class SpringBootMain { 

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

의 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 http://maven.apache.org/xsd/maven-4.0.0.xsd"> 
<modelVersion>4.0.0</modelVersion> 

<groupId>RandomProjects</groupId> 
<artifactId>SpringBoot</artifactId> 
<version>1.0-SNAPSHOT</version> 

<properties> 
    <java.version>1.8</java.version> 
</properties> 

<build> 
    <plugins> 
     <plugin> 
      <artifactId>maven-compiler-plugin</artifactId> 
      <version>2.3.2</version> 
      <configuration> 
       <source>1.8</source> 
       <target>1.8</target> 
      </configuration> 
     </plugin> 
     <plugin> 
      <groupId>org.codehaus.mojo</groupId> 
      <artifactId>exec-maven-plugin</artifactId> 
      <version>1.6.0</version> 
      <configuration> 
       <mainClass>com.spring.boot.SpringBootMain</mainClass> 
      </configuration> 
     </plugin> 
    </plugins> 
</build> 

<dependencies> 

    <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-parent --> 
    <dependency> 
     <groupId>org.springframework.boot</groupId> 
     <artifactId>spring-boot-starter-parent</artifactId> 
     <version>1.5.6.RELEASE</version> 
     <type>pom</type> 
    </dependency> 



    <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-web --> 
    <dependency> 
     <groupId>org.springframework.boot</groupId> 
     <artifactId>spring-boot-starter-web</artifactId> 
     <version>1.5.6.RELEASE</version> 
    </dependency> 


</dependencies>

로그 : 응용 프로그램 클래스에 따라

package com.spring.controllers; 

import org.springframework.web.bind.annotation.RequestMapping; 
import org.springframework.web.bind.annotation.RestController; 

@RestController 
public class HelloController { 

    @RequestMapping(value = "/abc") 
    public String getHi() { 
     System.out.println("End Point hit"); 
     return "Hi"; 
    } 
}

됩니다 : 다음

는

컨트롤러 클래스

. ____   _   __ _ _ 
/\\/___'_ __ _ _(_)_ __ __ _ \ \ \ \ 
(()\___ | '_ | '_| | '_ \/ _` | \ \ \ \ 
\\/ ___)| |_)| | | | | || (_| | )))) 
    ' |____| .__|_| |_|_| |_\__, |//// 
=========|_|==============|___/=/_/_/_/ 
:: Spring Boot ::  (v1.5.6.RELEASE) 

2017-12-25 16:41:16.236 INFO 50314 --- [BootMain.main()] com.spring.boot.SpringBootMain   : Starting SpringBootMain on f45c89be9049.ant.amazon.com with PID 50314 (/Users/sumt/Desktop/Work/RandomWork/RandomProjects/target/classes started by sumt in /Users/sumt/Desktop/Work/RandomWork/RandomProjects) 
2017-12-25 16:41:16.244 INFO 50314 --- [BootMain.main()] com.spring.boot.SpringBootMain   : No active profile set, falling back to default profiles: default 
2017-12-25 16:41:16.408 INFO 50314 --- [BootMain.main()] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot[email protected]7bbcce75: startup date [Mon Dec 25 16:41:16 IST 2017]; root of context hierarchy 
2017-12-25 16:41:18.279 INFO 50314 --- [BootMain.main()] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat initialized with port(s): 8080 (http) 
2017-12-25 16:41:18.295 INFO 50314 --- [BootMain.main()] o.apache.catalina.core.StandardService : Starting service [Tomcat] 
2017-12-25 16:41:18.297 INFO 50314 --- [BootMain.main()] org.apache.catalina.core.StandardEngine : Starting Servlet Engine: Apache Tomcat/8.5.16 
2017-12-25 16:41:18.402 INFO 50314 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/]  : Initializing Spring embedded WebApplicationContext 
2017-12-25 16:41:18.402 INFO 50314 --- [ost-startStop-1] o.s.web.context.ContextLoader   : Root WebApplicationContext: initialization completed in 2056 ms 
2017-12-25 16:41:18.560 INFO 50314 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean : Mapping servlet: 'dispatcherServlet' to [/] 
2017-12-25 16:41:18.564 INFO 50314 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'characterEncodingFilter' to: [/*] 
2017-12-25 16:41:18.565 INFO 50314 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'hiddenHttpMethodFilter' to: [/*] 
2017-12-25 16:41:18.565 INFO 50314 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'httpPutFormContentFilter' to: [/*] 
2017-12-25 16:41:18.566 INFO 50314 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'requestContextFilter' to: [/*] 
2017-12-25 16:41:18.920 INFO 50314 --- [BootMain.main()] s.w.s.m.m.a.RequestMappingHandlerAdapter : Looking for @ControllerAdvice: org.springframework.boot[email protected]7bbcce75: startup date [Mon Dec 25 16:41:16 IST 2017]; root of context hierarchy 
2017-12-25 16:41:19.005 INFO 50314 --- [BootMain.main()] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error]}" onto public org.springframework.http.ResponseEntity<java.util.Map<java.lang.String, java.lang.Object>> org.springframework.boot.autoconfigure.web.BasicErrorController.error(javax.servlet.http.HttpServletRequest) 
2017-12-25 16:41:19.007 INFO 50314 --- [BootMain.main()] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error],produces=[text/html]}" onto public org.springframework.web.servlet.ModelAndView org.springframework.boot.autoconfigure.web.BasicErrorController.errorHtml(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse) 
2017-12-25 16:41:19.041 INFO 50314 --- [BootMain.main()] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler] 
2017-12-25 16:41:19.041 INFO 50314 --- [BootMain.main()] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler] 
2017-12-25 16:41:19.084 INFO 50314 --- [BootMain.main()] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler] 
2017-12-25 16:41:19.323 INFO 50314 --- [BootMain.main()] o.s.j.e.a.AnnotationMBeanExporter  : Registering beans for JMX exposure on startup 
2017-12-25 16:41:19.407 INFO 50314 --- [BootMain.main()] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat started on port(s): 8080 (http) 
2017-12-25 16:41:19.413 INFO 50314 --- [BootMain.main()] com.spring.boot.SpringBootMain   : Started SpringBootMain in 3.889 seconds (JVM running for 6.196)

내가 기본 패키지 검사를 추가, 심지어 @ComponentScan 주석을했지만, 내가 URL (http://localhost:8080/abc)를 쳤을 때 결과는 동일했다 :

있었다

예기치 않은 오류 (유형 = 찾을 수 없음 상태 = 404). 메시지 없음

누구도 동일한 문제가 있습니까? 어떻게 해결했는지 제안하십시오.

출처

2017-12-25 Devil

컨트롤러에 어떻게 접근하고 있습니까? 어떤 URL로? – pvpkiran

내가 접근하고있는 URL은 - http : // localhost : 8080/abc – Devil

이고 응용 프로그램이 시작되면 spring-boot는 모든 요청 매핑을 나열합니다. 매핑이 보이십니까? – pvpkiran

의견에 언급 된 사람들이 기본 패키지를 추가하려고합니다.

@SpringBootApplication(scanBasePackages = {"com.spring"})

또는

@SpringBootApplication 
@ComponentScan("com.spring")

그러나 처음부터 스프링 부트 프로젝트를 만들 https://start.spring.io/ initializr이 스프링을 사용하지 않는 이유. 필요한 종속성을 추가 할 수도 있습니다.

SpringApplication

package com.example.demo.app; 

import org.springframework.boot.SpringApplication; 
import org.springframework.boot.autoconfigure.SpringBootApplication; 
import org.springframework.context.annotation.ComponentScan; 

@SpringBootApplication 
@ComponentScan("com.example.demo.controller") 
public class DemoApplication { 

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

컨트롤러

package com.example.demo.controller; 

import org.springframework.web.bind.annotation.RequestMapping; 
import org.springframework.web.bind.annotation.RestController; 

@RestController 
public class HelloController { 

    @RequestMapping(value = "/abc") 
    public String getHi() { 
     System.out.println("End Point hit"); 
     return "Hi"; 
    } 
}

의 pom.xml

: 여기

내가 당신의 예에서 재현하려고 미니 컨트롤러

<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd"> 
    <modelVersion>4.0.0</modelVersion> 

    <groupId>com.example</groupId> 
    <artifactId>demo</artifactId> 
    <version>0.0.1-SNAPSHOT</version> 
    <packaging>jar</packaging> 

    <name>demo</name> 
    <description>Demo project for Spring Boot</description> 

    <parent> 
     <groupId>org.springframework.boot</groupId> 
     <artifactId>spring-boot-starter-parent</artifactId> 
     <version>1.5.9.RELEASE</version> 
     <relativePath/> <!-- lookup parent from repository --> 
    </parent> 

    <properties> 
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> 
     <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> 
     <java.version>1.8</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-test</artifactId> 
      <scope>test</scope> 
     </dependency> 
    </dependencies> 

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


</project>

그리고 잘 작동합니다.

출처

2017-12-25 11:35:50

제안 사항처럼 기본 액츄에이터 끝점을 호출하십시오. http://localhost:8080/error. 그들은 Spring Boot를 생각해 내고 서비스의 실제 상태를 보여줄 것입니다.

출처

2017-12-25 12:43:12 sainr

SpringBoot의 RequestMapping 작동하지 않음

답변

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