我正在尝试使用Spring Boot 2（特别是2.1.5.RELEASE）重写应用程序。先前版本使用1.5.7.RELEASE。我们正在切换数据库平台，因此进行了重写。新旧的启动类几乎相同，都试图从另一个库创建一个bean。它可以在1.5.7中工作，但在2.1.5中却失败，并显示以下消息：
org.springframework.beans.factory.BeanDefinitionStoreException: Failed to process
import candidates for configuration class [com.company.consumer.ConsumerRecoveryConfiguration];
nested exception is java.lang.IllegalStateException: Failed to introspect
annotated methods on class com.company.consumer.RecordRecovery
这是新旧启动类的外观：
旧：
@SpringBootApplication
@ComponentScan(basePackages = {
"com.company.core",
"com.company.something",
"com.company.platform",
"com.company.config"},
excludeFilters = @ComponentScan.Filter(type =
FilterType.REGEX, pattern = "com.company.common.diag.*"))
@Import({SomeClass.class, ConsumerRecoveryConfiguration.class,
ConsumerRetryConfiguration.class})
@PropertySource("classpath:build.properties")
public class SomeApplication {
public static void main(String[] args) {
SpringApplication.run(SomeApplication.class, args);
}
@Bean(name = "someDbTimingLogger")
public TimingLogger getSomeDbTimingLogger() {
return new TimingLogger(LoggerFactory.getLogger("timing.someDb"));
}
@Bean(name = "timingLogger")
public TimingLogger getTimingLogger() {
return new TimingLogger(LoggerFactory.getLogger("timing.consumer"));
}
@Bean(name = "kafkaTimingLogger")
public TimingLogger getKafkaTimingLogger() {
return new TimingLogger(LoggerFactory.getLogger("timing.kafka"));
}
@Bean(name = "parser")
public Parser<GenericMessageModel> getSomeModelParser() {
return new Parser<>(GenericMessageModel.class);
}
}
新功能：
@SpringBootApplication
@ComponentScan(basePackages = {
"com.company.core",
"com.company.something",
"com.company.platform",
"com.company.config"},
excludeFilters = @ComponentScan.Filter(
type = FilterType.REGEX,
pattern = "com.company.common.diag.*"
))
@Import({ ConsumerRecoveryConfiguration.class,
ConsumerRetryConfiguration.class })
@PropertySource("classpath:build.properties")
public class SomeApplication {
public static void main(String[] args) {
SpringApplication.run(SomeApplication.class, args);
}
@Bean(name = "timingLogger")
public TimingLogger getTimingLogger() { return new TimingLogger(LoggerFactory.getLogger("timing.consumer")); }
@Bean(name = "kafkaTimingLogger")
public TimingLogger getKafkaTimingLogger() { return new TimingLogger(LoggerFactory.getLogger("timing.kafka")); }
@Bean(name = "parser")
public Parser<GenericMessageModel> getSomeModelParser() { return new Parser<>(GenericMessageModel.class, null); }
}
嵌套异常中提到的Kotlin类如下（减去其众多的私有方法）：
@Component
class RecordRecovery(val producer: KafkaProducer<String, String>, val kafkaProducerSettings: KafkaProducerSettings,
val recoverySettings: RecoverySettings, val objectMapper: ObjectMapper) {
val random = ThreadLocalRandom.current()!!
companion object {
val LOGGER = LoggerFactory.getLogger(RecordRecovery::class.java)
}
fun recoverRecords(records: ConsumerRecords<String, String>, exception: Exception) {
recoverRecords(records.map { it.value() ?: StringUtils.EMPTY }, exception)
}
fun recoverRecords(records: List<Any>, exception: Exception) {
error(metaDataFor(records.count()), LOGGER, "Recovering {} records", records.count())
val filteredRecords = records.map { createRecoveryRecord(it) }
.filter{ it != null }
.map { recordToJson(it) }
.filter { removeNulls(it) }
.mapIndexed { index, it -> toEmergencyDataWrapper(it!!, exception, index) }
.mapNotNull {toJSONStringOrNull(it)}
.map {toProducerRecord(it)}
.map { republish(it) }
.toList()
info(metaDataFor(filteredRecords.count()), LOGGER, "After filtering, recovering {} records", filteredRecords.count())
filteredRecords.map { await(it) }
}
}
这是有问题的ConsumerRecoveryConfiguration类（也是Kotlin）：
@Configuration
@Import(KafkaProducerConfig::class, RecoverySettings::class, RecordRecovery::class)
class ConsumerRecoveryConfiguration
该班级没有任何身体。我假设导入其他类会使Spring基本上将那些用作主体。
在谈到Spring时，我还是有点绿，所以我很难理解为什么当我更改为SB 2时它停止工作了。关于我应该看什么或有什么帮助我解决这个问题的任何建议？ / p>
编辑：
这是请求的完整堆栈跟踪：
org.springframework.beans.factory.BeanDefinitionStoreException: Failed to process import candidates for configuration class [com.company.consumer.ConsumerRecoveryConfiguration]; nested exception is java.lang.IllegalStateException: Failed to introspect annotated methods on class com.company.consumer.RecordRecovery
at org.springframework.context.annotation.ConfigurationClassParser.processImports(ConfigurationClassParser.java:596)
at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:302)
at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:242)
at org.springframework.context.annotation.ConfigurationClassParser.processImports(ConfigurationClassParser.java:586)
at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:302)
at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:242)
at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:199)
at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:167)
at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:315)
at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:232)
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:275)
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:95)
at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:705)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:531)
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:142)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:775)
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:316)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1260)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1248)
at com.company.SomeApplication.main(SomeApplication.java:35)
Caused by: java.lang.IllegalStateException: Failed to introspect annotated methods on class com.company.consumer.RecordRecovery
at org.springframework.core.type.StandardAnnotationMetadata.getAnnotatedMethods(StandardAnnotationMetadata.java:169)
at org.springframework.context.annotation.ConfigurationClassParser.retrieveBeanMethodMetadata(ConfigurationClassParser.java:392)
at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:317)
at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:242)
at org.springframework.context.annotation.ConfigurationClassParser.processImports(ConfigurationClassParser.java:586)
... 20 common frames omitted
Caused by: java.lang.NoClassDefFoundError: org/json/JSONObject
at java.lang.Class.getDeclaredMethods0(Native Method)
at java.lang.Class.privateGetDeclaredMethods(Class.java:2701)
at java.lang.Class.getDeclaredMethods(Class.java:1975)
at org.springframework.core.type.StandardAnnotationMetadata.getAnnotatedMethods(StandardAnnotationMetadata.java:158)
... 24 common frames omitted
Caused by: java.lang.ClassNotFoundException: org.json.JSONObject
at java.net.URLClassLoader.findClass(URLClassLoader.java:382)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 28 common frames omitted