问题
Am newbie to Spring boot application. I have a task to create common crud repository which should be processed by rest controller. I just started with some example. But my application is not started the embedded tomcat. Also my rest controller URI are not mapping. This is maven module project and all the dependency are configured in parent maven. How to resolve this.
Here is my code
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class CRUDEngineApplication {
public static void main(String[] args) {
SpringApplication.run(CRUDEngineApplication.class, args);
}
}
Controller is
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RestController;
import com.scm.services.CRUDEngineService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
@RestController("/api")
public class CRUDEngineController {
@Autowired
private CRUDEngineService crudEngineService;
public static final Logger logger =
LoggerFactory.getLogger(CRUDEngineController.class);
/* public void setProductService(CRUDEngineService crudEngineService) {
this.crudEngineService = crudEngineService;
}*/
@RequestMapping(value = "/user", method = RequestMethod.POST)
public ResponseEntity<?> createUser(@RequestBody Object entity) {
System.out.println("Check point entered.");
crudEngineService.save(entity);
return new ResponseEntity<String>( HttpStatus.CREATED);
}
}
Service interface is
import java.util.UUID;
public interface CRUDEngineService {
void save(Object entity);
void delete(UUID id);
}
Service implementation class is
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import com.scm.repositories.CRUDEngineRespository;
import java.util.UUID;
@Service
public class CRUDEngineServiceImpl implements CRUDEngineService {
@Autowired
private CRUDEngineRespository productRepository;
@Override
public void save(Object entity) {
productRepository.save(entity);
}
@Override
public void delete(UUID id) {
productRepository.delete(id);
}
}
And the crud repository implementation is
import java.util.UUID;
import org.springframework.data.repository.CrudRepository;
public interface CRUDEngineRespository extends CrudRepository<Object, UUID>
{
}
Child pom.xml is
<?xml version="1.0"?>
<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
http://maven.apache.org/xsd/maven-4.0.0.xsd"
xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>com.scm</groupId>
<artifactId>scm-parent</artifactId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<artifactId>crudEngineService</artifactId>
<packaging>war</packaging>
<name>crudEngineService</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
</project>
Parent pom is
<?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.scm</groupId>
<artifactId>scm-parent</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>pom</packaging>
<name>scm-parent</name>
<description>scm project for Spring Boot</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.7.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>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-cassandra</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-rest</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>provided</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/org.hibernate/hibernate-validator -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-validator</artifactId>
<version>5.4.1.Final</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
<modules>
<module>userService</module>
<module>authenticationService</module>
<module>dataLayerService</module>
<module>uiService</module>
<module>crudEngineService</module>
</modules>
And the console result is
2017-10-07 13:03:32.348 INFO 6508 --- [ main]
c.s.configuration.CRUDEngineApplication : Starting CRUDEngineApplication on
STS-STP-A808 with PID 6508 (started by muthuvignesh.k in E:\Septa_Bench\STS
Septa Repo\ppts_scm\scm-parent\crudEngineService)
2017-10-07 13:03:32.350 INFO 6508 --- [ main]
c.s.configuration.CRUDEngineApplication : No active profile set, falling
back to default profiles: default
2017-10-07 13:03:32.378 INFO 6508 --- [ main]
s.c.a.AnnotationConfigApplicationContext : Refreshing org.springframework.context.annotation.AnnotationConfigApplicationContext@4df828
d7: startup date [Sat Oct 07 13:03:32 IST 2017]; root of context hierarchy
2017-10-07 13:03:32.766 WARN 6508 --- [ main]
o.h.v.m.ParameterMessageInterpolator : HV000184:
ParameterMessageInterpolator has been chosen, EL interpolation will not be supported
2017-10-07 13:03:32.872 WARN 6508 --- [ main] o.h.v.m.ParameterMessageInterpolator : HV000184: ParameterMessageInterpolator has been chosen, EL interpolation will not be supported
2017-10-07 13:03:33.052 INFO 6508 --- [ main] com.datastax.driver.core.Native : Could not load JNR C Library, native system calls through this library will not be available (set this logger level to DEBUG to see the full stack trace).
2017-10-07 13:03:33.052 INFO 6508 --- [ main] com.datastax.driver.core.ClockFactory : Using java.lang.System clock to generate timestamps.
2017-10-07 13:03:33.197 INFO 6508 --- [ main] com.datastax.driver.core.NettyUtil : Did not find Netty's native epoll transport in the classpath, defaulting to NIO.
2017-10-07 13:03:33.541 INFO 6508 --- [ main] c.d.d.c.p.DCAwareRoundRobinPolicy : Using data-center name 'datacenter1' for DCAwareRoundRobinPolicy (if this is incorrect, please provide the correct datacenter name with DCAwareRoundRobinPolicy constructor)
2017-10-07 13:03:33.543 INFO 6508 --- [ main] com.datastax.driver.core.Cluster : New Cassandra host /10.10.30.125:9042 added
2017-10-07 13:03:33.795 INFO 6508 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Registering beans for JMX exposure on startup
2017-10-07 13:03:33.804 INFO 6508 --- [ main] c.s.configuration.CRUDEngineApplication : Started CRUDEngineApplication in 1.619 seconds (JVM running for 2.002)
回答1:
Remove <scope>provided</scope> from pom.xml and try re-running. Use provided if you wish to deploy the war to any other standalone tomcat.
Reference: Spring Boot Embedded Tomcat
回答2:
Try dependency management:
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
来源：https://stackoverflow.com/questions/46617885/spring-boot-application-not-starting-embedded-tomcat