java Spring 启动应用程序未启动嵌入式 tomcat

Spring boot application not starting embedded tomcat

提问by Muthu vignesh k

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.

我是 Spring 启动应用程序的新手。我有一个任务来创建公共 crud 存储库，该存储库应由其余控制器处理。我只是从一些例子开始。但是我的应用程序并没有启动嵌入式tomcat。我的休息控制器 URI 也没有映射。这是 maven 模块项目，所有依赖项都在父 maven 中配置。如何解决这个问题。

Here is my code

这是我的代码

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

控制器是

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

服务接口是

import java.util.UUID;

public interface CRUDEngineService {

void save(Object entity);

void delete(UUID id);
}

Service implementation class is

服务实现类是

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

并且 crud 存储库实现是

import java.util.UUID;
import org.springframework.data.repository.CrudRepository;

public interface CRUDEngineRespository extends CrudRepository<Object, UUID> 
{

}

Child pom.xml is

子 pom.xml 是

<?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

父 pom 是

<?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

控制台结果是

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by Dhiraj Ray

Remove <scope>provided</scope>from pom.xml and try re-running. Use providedif you wish to deploy the war to any other standalone tomcat.

<scope>provided</scope>从 pom.xml 中删除并尝试重新运行。如果您希望将War部署到任何其他独立的 tomcat，请使用提供的。

Reference: Spring Boot Embedded Tomcat

参考： Spring Boot嵌入式Tomcat

回答by Amit Datta

Try dependency management:

尝试依赖管理：

<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>