注：本文的项目使用ELK框架，实现两个功能：
1.Elasticsearch实现查询
2.ELK实现日志管理
在编写完带有ELK的SpringBoot项目后，启动发现控制台无输出直接
Process finished with exit code 1
为了找到原因，尝试了给启动类try catch的方式：
@SpringBootApplication
public class DemoApplication {
public static void main(String[] args) {
try {
SpringApplication.run(DemoApplication.class, args);
} catch (Exception e) {
e.printStackTrace();
}
}
}
结果输出：
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'taskController': Unsatisfied dependency expressed through field 'taskService': Error creating bean with name 'taskService': Unsatisfied dependency expressed through field 'esTaskRepository': Error creating bean with name 'esTaskRepository' defined in com.test.simpleLoginRegister.repository.EsTaskRepository defined in @EnableElasticsearchRepositories declared on ElasticsearchRepositoriesRegistrar.EnableElasticsearchRepositoriesConfiguration: Failed to instantiate [org.springframework.data.elasticsearch.repository.support.SimpleElasticsearchRepository]: Constructor threw exception
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:788)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:768)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:146)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:509)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1445)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:600)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:523)
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:339)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:347)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:337)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.instantiateSingleton(DefaultListableBeanFactory.java:1155)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingleton(DefaultListableBeanFactory.java:1121)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:1056)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:987)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:627)
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:146)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:752)
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:439)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:318)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1361)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1350)
at com.test.simpleLoginRegister.SpringTestApplication.main(SpringTestApplication.java:11)
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'taskService': Unsatisfied dependency expressed through field 'esTaskRepository': Error creating bean with name 'esTaskRepository' defined in com.test.simpleLoginRegister.repository.EsTaskRepository defined in @EnableElasticsearchRepositories declared on ElasticsearchRepositoriesRegistrar.EnableElasticsearchRepositoriesConfiguration: Failed to instantiate [org.springframework.data.elasticsearch.repository.support.SimpleElasticsearchRepository]: Constructor threw exception
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:788)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:768)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:146)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:509)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1445)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:600)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:523)
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:339)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:347)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:337)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1609)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1555)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:785)
... 22 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'esTaskRepository' defined in com.test.simpleLoginRegister.repository.EsTaskRepository defined in @EnableElasticsearchRepositories declared on ElasticsearchRepositoriesRegistrar.EnableElasticsearchRepositoriesConfiguration: Failed to instantiate [org.springframework.data.elasticsearch.repository.support.SimpleElasticsearchRepository]: Constructor threw exception
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1812)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:601)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:523)
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:339)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:347)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:337)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1609)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1555)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:785)
... 35 more
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.data.elasticsearch.repository.support.SimpleElasticsearchRepository]: Constructor threw exception
at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:222)
at org.springframework.data.repository.core.support.RepositoryFactorySupport.lambda$instantiateClass$5(RepositoryFactorySupport.java:657)
at java.base/java.util.Optional.map(Optional.java:260)
at org.springframework.data.repository.core.support.RepositoryFactorySupport.instantiateClass(RepositoryFactorySupport.java:657)
at org.springframework.data.repository.core.support.RepositoryFactorySupport.getTargetRepositoryViaReflection(RepositoryFactorySupport.java:622)
at org.springframework.data.elasticsearch.repository.support.ElasticsearchRepositoryFactory.getTargetRepository(ElasticsearchRepositoryFactory.java:80)
at org.springframework.data.repository.core.support.RepositoryFactorySupport.getRepository(RepositoryFactorySupport.java:377)
at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.lambda$afterPropertiesSet$4(RepositoryFactoryBeanSupport.java:350)
at org.springframework.data.util.Lazy.getNullable(Lazy.java:135)
at org.springframework.data.util.Lazy.get(Lazy.java:113)
at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.afterPropertiesSet(RepositoryFactoryBeanSupport.java:356)
at org.springframework.data.elasticsearch.repository.support.ElasticsearchRepositoryFactoryBean.afterPropertiesSet(ElasticsearchRepositoryFactoryBean.java:69)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1859)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1808)
... 44 more
Caused by: org.springframework.dao.DataAccessResourceFailureException: Connection is closed
at org.springframework.data.elasticsearch.client.elc.ElasticsearchExceptionTranslator.translateExceptionIfPossible(ElasticsearchExceptionTranslator.java:111)
at org.springframework.data.elasticsearch.client.elc.ElasticsearchExceptionTranslator.translateException(ElasticsearchExceptionTranslator.java:65)
at org.springframework.data.elasticsearch.client.elc.ChildTemplate.execute(ChildTemplate.java:73)
at org.springframework.data.elasticsearch.client.elc.IndicesTemplate.doExists(IndicesTemplate.java:179)
at org.springframework.data.elasticsearch.client.elc.IndicesTemplate.exists(IndicesTemplate.java:171)
at org.springframework.data.elasticsearch.repository.support.SimpleElasticsearchRepository.createIndexAndMappingIfNeeded(SimpleElasticsearchRepository.java:93)
at org.springframework.data.elasticsearch.repository.support.SimpleElasticsearchRepository.<init>(SimpleElasticsearchRepository.java:87)
at java.base/jdk.internal.reflect.DirectConstructorHandleAccessor.newInstance(DirectConstructorHandleAccessor.java:67)
at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:499)
at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:483)
at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:209)
... 57 more
Caused by: java.lang.RuntimeException: Connection is closed
at org.springframework.data.elasticsearch.client.elc.ElasticsearchExceptionTranslator.translateException(ElasticsearchExceptionTranslator.java:64)
... 66 more
Caused by: org.apache.http.ConnectionClosedException: Connection is closed
at org.elasticsearch.client.RestClient.extractAndWrapCause(RestClient.java:924)
at org.elasticsearch.client.RestClient.performRequest(RestClient.java:304)
at org.elasticsearch.client.RestClient.performRequest(RestClient.java:292)
at co.elastic.clients.transport.rest_client.RestClientHttpClient.performRequest(RestClientHttpClient.java:91)
at co.elastic.clients.transport.ElasticsearchTransportBase.performRequest(ElasticsearchTransportBase.java:144)
at co.elastic.clients.elasticsearch.indices.ElasticsearchIndicesClient.exists(ElasticsearchIndicesClient.java:682)
at org.springframework.data.elasticsearch.client.elc.IndicesTemplate.lambda$doExists$2(IndicesTemplate.java:179)
at org.springframework.data.elasticsearch.client.elc.ChildTemplate.execute(ChildTemplate.java:71)
... 65 more
Caused by: org.apache.http.ConnectionClosedException: Connection is closed
at org.apache.http.nio.protocol.HttpAsyncRequestExecutor.endOfInput(HttpAsyncRequestExecutor.java:356)
at org.apache.http.impl.nio.client.InternalRequestExecutor.endOfInput(InternalRequestExecutor.java:132)
at org.apache.http.impl.nio.DefaultNHttpClientConnection.consumeInput(DefaultNHttpClientConnection.java:261)
at org.apache.http.impl.nio.client.InternalIODispatch.onInputReady(InternalIODispatch.java:87)
at org.apache.http.impl.nio.client.InternalIODispatch.onInputReady(InternalIODispatch.java:40)
at org.apache.http.impl.nio.reactor.AbstractIODispatch.inputReady(AbstractIODispatch.java:114)
at org.apache.http.impl.nio.reactor.BaseIOReactor.readable(BaseIOReactor.java:162)
at org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvent(AbstractIOReactor.java:337)
at org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvents(AbstractIOReactor.java:315)
at org.apache.http.impl.nio.reactor.AbstractIOReactor.execute(AbstractIOReactor.java:276)
at org.apache.http.impl.nio.reactor.BaseIOReactor.execute(BaseIOReactor.java:104)
at org.apache.http.impl.nio.reactor.AbstractMultiworkerIOReactor$Worker.run(AbstractMultiworkerIOReactor.java:591)
at java.base/java.lang.Thread.run(Thread.java:833)
检查发现问题出自在ES上，回忆ES的配置过程，发现ES启用了 xpack 安全性和 SSL，因此需要在 Spring Boot 的配置文件中添加相应的设置。
Spring Boot 配置
如果ELK架构是正常运行的，建议依据Logstash的配置来编写Spring Boot 配置
比如我的Logstash配置的结构，可以依据Logstash配置了什么选项，然后去Spring Boot进行 配置：
output {
elasticsearch {
hosts => ["localhost:9200"]
user => ""
password => ""
ssl_enabled => true
ssl_verification_mode => full
ca_trusted_fingerprint => ""
index => "app-logs-%{+YYYY.MM.dd}"
}
}
配置参考（仅参考，与上文的Logstash配置不是对应关系）：
1.在 application.yml 或 application.properties 中添加以下配置：
使用 application.yml
# Elasticsearch配置
spring:
elastic:
host: localhost:9200
user: elastic
password: 123
fingerprint: 123
# 禁用默认的自动配置
data:
elasticsearch:
enabled: false
使用 application.properties
# Elasticsearch配置
spring.elastic.host=localhost:9200
spring.elastic.user=elastic
spring.elastic.password=123
spring.elastic.fingerprint=123
# 禁用默认的自动配置
data.elasticsearch.enabled=false
编写ElasticConfig
@Configuration
public class ElasticConfig extends ElasticsearchConfiguration {
@Value("${spring.elastic.host}")
private String host;
@Value("${spring.elastic.user}")
private String user;
@Value("${spring.elastic.password}")
private String password;
@Value("${spring.elastic.fingerprint}")
private String fingerprint;
@Override
public ClientConfiguration clientConfiguration() {
SSLContext sslContext;
try {
sslContext = buildSslContext();
} catch (Exception e) {
throw new RuntimeException("Failed to create SSL context", e);
}
HttpHeaders headers = new HttpHeaders();
headers.setBasicAuth(user, password);
return ClientConfiguration.builder()
.connectedTo(host)
.usingSsl(sslContext)
.withDefaultHeaders(headers)
.withBasicAuth(user, password)
.withSocketTimeout(60_000)
.build();
}
private SSLContext buildSslContext() throws Exception {
return SSLContextBuilder.create()
.loadTrustMaterial(new TrustSelfSignedStrategy() {
@Override
public boolean isTrusted(X509Certificate[] chain, String authType) throws CertificateException {
if (chain == null || chain.length == 0) {
throw new CertificateException("Certificate chain is empty");
}
// 只验证叶子证书（第一个证书）
X509Certificate leafCert = chain[0];
try {
String actualFingerprint = getSha256Fingerprint(leafCert);
if (!fingerprint.equalsIgnoreCase(actualFingerprint)) {
throw new CertificateException("Certificate fingerprint mismatch. Expected: "
+ fingerprint + ", Actual: " + actualFingerprint);
}
} catch (NoSuchAlgorithmException | CertificateEncodingException e) {
throw new CertificateException("Failed to calculate fingerprint", e);
}
return true;
}
})
.build();
}
private String getSha256Fingerprint(X509Certificate cert)
throws NoSuchAlgorithmException, CertificateEncodingException {
MessageDigest md = MessageDigest.getInstance("SHA-256");
byte[] der = cert.getEncoded();
md.update(der);
byte[] digest = md.digest();
return bytesToHex(digest);
}
private String bytesToHex(byte[] bytes) {
StringBuilder sb = new StringBuilder();
for (byte b : bytes) {
sb.append(String.format("%02x", b));
}
return sb.toString();
}
}
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