我正在尝试将HealthMvcEndpoint bean替换为添加另一个请求映射以接受参数的bean。为了做到这一点，我已经将HealthMvcEndpoint子类化，并添加了请求映射，如下所示：
public class MyHealthMvcEndpoint extends HealthMvcEndpoint {
@RequestMapping(produces = MediaType.APPLICATION_JSON_VALUE, params={"param"})
@ResponseBody
public Object invoke(Principal principal, @RequestParam(value="param") String param) {
// do something with param
return super.invoke(principal);
}
为了使用我新定义的healthMvcEndpoint，我已经将EndpointWebMvcManagementContextConfiguration子类化，并将以前的bean定义替换为MyHealthMvcEndpoint的实例。
@ManagementContextConfiguration
@EnableAutoConfiguration(exclude={EndpointWebMvcManagementContextConfiguration.class})
@EnableConfigurationProperties({ HealthMvcEndpointProperties.class, EndpointCorsProperties.class })
public class MyEndpointWebMvcManagementContextConfiguration extends EndpointWebMvcManagementContextConfiguration {
@Autowired
private HealthMvcEndpointProperties healthMvcEndpointProperties;
@Autowired
private ManagementServerProperties managementServerProperties;
@Bean
@Override
@ConditionalOnBean(HealthEndpoint.class)
@ConditionalOnEnabledEndpoint("health")
public HealthMvcEndpoint healthMvcEndpoint(HealthEndpoint delegate) {
ManagementServerProperties.Security security = this.managementServerProperties.getSecurity();
boolean secure = (security != null && security.isEnabled());
HealthMvcEndpoint healthMvcEndpoint = new MyHealthMvcEndpoint(delegate, secure);
// HealthMvcEndpoint healthMvcEndpoint = new HealthMvcEndpoint(delegate, secure);
if (this.healthMvcEndpointProperties.getMapping() != null) {
healthMvcEndpoint
.addStatusMapping(this.healthMvcEndpointProperties.getMapping());
}
return healthMvcEndpoint;
}
}
我希望spring-boot能够以与更换之前相同的顺序自动配置bean，只需自动配置MyEndpointWebMvcManagementContextConfiguration的内容，但它似乎改变了bean创建顺序并导致以下错误：'
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration$JdbcTemplateConfiguration': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private javax.sql.DataSource org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration$JdbcTemplateConfiguration.dataSource; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource' defined in class path resource [org/springframework/boot/autoconfigure/jdbc/DataSourceAutoConfiguration$NonEmbeddedConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [javax.sql.DataSource]: Factory method 'dataSource' threw exception; nested exception is org.springframework.boot.autoconfigure.jdbc.DataSourceProperties$DataSourceBeanCreationException: Cannot determine embedded database driver class for database type NONE. If you want an embedded database please put a supported one on the classpath. If you have database settings to be loaded from a particular profile you may need to active it (no profiles are currently active).
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:334)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1214)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:543)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:772)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:839)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:538)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:118)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:766)
at org.springframework.boot.SpringApplication.createAndRefreshContext(SpringApplication.java:361)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:307)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1191)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1180)
at Application.main(Application.java:30)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.boot.maven.AbstractRunMojo$LaunchRunner.run(AbstractRunMojo.java:478)
at java.lang.Thread.run(Thread.java:745)
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private javax.sql.DataSource org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration$JdbcTemplateConfiguration.dataSource; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource' defined in class path resource [org/springframework/boot/autoconfigure/jdbc/DataSourceAutoConfiguration$NonEmbeddedConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [javax.sql.DataSource]: Factory method 'dataSource' threw exception; nested exception is org.springframework.boot.autoconfigure.jdbc.DataSourceProperties$DataSourceBeanCreationException: Cannot determine embedded database driver class for database type NONE. If you want an embedded database please put a supported one on the classpath. If you have database settings to be loaded from a particular profile you may need to active it (no profiles are currently active).
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:573)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:331)
... 23 more
由于我在我的应用程序中没有使用jdbc，因此我查看了正在创建的bean，我发现当我执行上述配置时，MyEndpointWebMvcManagementContextConfiguration的配置比EndpointWebMvcManagementContextConfiguration要早得多，而且当创建dataSourceInitializerPostProcessor时它没有正常配置。
我试过@ConfigureAfter尝试改变bean创建的顺序，但没有运气。如果有人能解释，我们将不胜感激。