如何解决Spring Cloud 功能不适用于 Spring Native
我一直在尝试复制此 aws function example 以使用 Spring Cloud 函数和 graalvm 部署 lambda。
该功能可以在本地运行，并且可以正常启动。
❯ ./demo
2021-05-10 15:56:17.964 INFO 10764 --- [ main] o.s.nativex.NativeListener
: This application is bootstrapped with code generated with Spring AOT
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__,| / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v2.4.5)
2021-05-10 16:42:42.607 INFO 12792 --- [ main] com.example.demo.DemoApplication : Starting DemoApplication using Java 11.0.11 on loyalty-C02F70R8MD6R with PID 12792 (/Users/user/Workspace/learning/demo/target/demo started by user in /Users/user/Workspace/learning/demo/target)
2021-05-10 16:42:42.607 INFO 12792 --- [ main] com.example.demo.DemoApplication : No active profile set,falling back to default profiles: default
2021-05-10 16:42:42.637 INFO 12792 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8080 (http)
May 10,2021 4:42:42 PM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["http-nio-8080"]
May 10,2021 4:42:42 PM org.apache.catalina.core.StandardService startInternal
INFO: Starting service [Tomcat]
May 10,2021 4:42:42 PM org.apache.catalina.core.StandardEngine startInternal
INFO: Starting Servlet engine: [Apache Tomcat/9.0.45]
May 10,2021 4:42:42 PM org.apache.catalina.core.ApplicationContext log
INFO: Initializing Spring embedded WebApplicationContext
2021-05-10 16:42:42.640 INFO 12792 --- [ main] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 32 ms
2021-05-10 16:42:42.650 INFO 12792 --- [ main] o.s.s.concurrent.ThreadPoolTaskExecutor : Initializing ExecutorService 'applicationTaskExecutor'
May 10,2021 4:42:42 PM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["http-nio-8080"]
2021-05-10 16:42:42.658 INFO 12792 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat started on port(s): 8080 (http) with context path ''
2021-05-10 16:42:42.658 INFO 12792 --- [ main] com.example.demo.DemoApplication : Started DemoApplication in 0.071 seconds (JVM running for 0.072)
但是，当我将它部署到 aws 时，它失败并出现以下异常
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.cloud.function.adapter.aws.CustomruntimeEventLoop': Instantiation of bean Failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.cloud.function.adapter.aws.CustomruntimeEventLoop]: No default constructor found; nested exception is java.lang.NoSuchMethodException: org.springframework.cloud.function.adapter.aws.CustomruntimeEventLoop.<init>()
at org.springframework.beans.factory.support.AbstractAutowireCapablebeanfactory.instantiateBean(AbstractAutowireCapablebeanfactory.java:1316) ~[na:na]
at org.springframework.beans.factory.support.AbstractAutowireCapablebeanfactory.createBeanInstance(AbstractAutowireCapablebeanfactory.java:1214) ~[na:na]
at org.springframework.beans.factory.support.AbstractAutowireCapablebeanfactory.doCreateBean(AbstractAutowireCapablebeanfactory.java:564) ~[na:na]
at org.springframework.beans.factory.support.AbstractAutowireCapablebeanfactory.createBean(AbstractAutowireCapablebeanfactory.java:524) ~[na:na]
at org.springframework.beans.factory.support.Abstractbeanfactory.lambda$doGetBean$0(Abstractbeanfactory.java:335) ~[na:na]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[na:na]
at org.springframework.beans.factory.support.Abstractbeanfactory.doGetBean(Abstractbeanfactory.java:333) ~[na:na]
at org.springframework.beans.factory.support.Abstractbeanfactory.getBean(Abstractbeanfactory.java:208) ~[na:na]
at org.springframework.beans.factory.support.DefaultListablebeanfactory.preInstantiateSingletons(DefaultListablebeanfactory.java:944) ~[na:na]
at org.springframework.context.support.AbstractApplicationContext.finishbeanfactoryInitialization(AbstractApplicationContext.java:918) ~[na:na]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:583) ~[na:na]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:144) ~[na:na]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:782) ~[demo:na]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:774) ~[demo:na]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:439) ~[demo:na]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:339) ~[demo:na]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1340) ~[demo:na]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1329) ~[demo:na]
at com.example.demo.DemoApplication.main(DemoApplication.java:10) ~[demo:na]
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.cloud.function.adapter.aws.CustomruntimeEventLoop]: No default constructor found; nested exception is java.lang.NoSuchMethodException: org.springframework.cloud.function.adapter.aws.CustomruntimeEventLoop.<init>()
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:83) ~[na:na]
at org.springframework.beans.factory.support.AbstractAutowireCapablebeanfactory.instantiateBean(AbstractAutowireCapablebeanfactory.java:1308) ~[na:na]
... 18 common frames omitted
Caused by: java.lang.NoSuchMethodException: org.springframework.cloud.function.adapter.aws.CustomruntimeEventLoop.<init>()
at java.lang.class.getConstructor0(DynamicHub.java:3349) ~[na:na]
at java.lang.class.getDeclaredConstructor(DynamicHub.java:2553) ~[na:na]
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:78) ~[na:na]
... 19 common frames omitted
我检查了 CustomruntimeEventLoop 并发现该类被注释
@Configuration
@ConditionalOnProperty("AWS_LAMBDA_RUNTIME_API")
这意味着它只能在 AWS 环境中初始化。这就是该函数在本地没有失败的原因。我尝试在构建时通过将以下代码段添加到我的 Spring Boot 应用程序来初始化该类
@NativeHint(initialization = {@InitializationHint(types = {CustomruntimeEventLoop.class},initTime = BUILD)})
但这仍然没有影响构建或运行时行为。
知道如何在构建时初始化它吗？
解决方法
你有没有看到这个例子 - https://github.com/spring-projects-experimental/spring-native/tree/main/samples/cloud-function-aws？
此外，新的 CustomRuntimeEventLoop 存在一些问题已经得到解决，因此请考虑使用最新的快照。
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