![java.lang.IllegalArgumentException: block static method can not be found in bean[restTemplate]](http://www.mshxw.com/aiimages/31/716474.png "java.lang.IllegalArgumentException: block static method can not be found in bean[restTemplate]")
出现这个问题就是在配置resttemplate 实现 sentinel 时，出现的问题，因为配置了ExecptionUtil，其中一个参数的包导错了才出现的这个问题
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'orderController': Unsatisfied dependency expressed through field 'restTemplate'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'restTemplate' defined in com.zjk.feignHystrix.OrdFeignSentinelApplication: Post-processing of merged bean definition failed; nested exception is java.lang.IllegalArgumentException: block static method can not be found in bean[restTemplate]. The right method signature is com.zjk.feignHystrix.Execptions.ExceptionsUtil#handleBlock[HttpRequest, byte[], ClientHttpRequestExecution, BlockException], please check your class name, method name and arguments at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:596) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE] at org.springframework.beans.factory.annotation.Injectionmetadata.inject(Injectionmetadata.java:90) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE] at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:374) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1411) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:592) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:515) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:320) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE] at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:845) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE] at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:877) ~[spring-context-5.1.8.RELEASE.jar:5.1.8.RELEASE] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:549) ~[spring-context-5.1.8.RELEASE.jar:5.1.8.RELEASE] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140) ~[spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:742) [spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:389) [spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:311) [spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1213) [spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1202) [spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE] at com.zjk.feignHystrix.OrdFeignSentinelApplication.main(OrdFeignSentinelApplication.java:36) [classes/:na] Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'restTemplate' defined in com.zjk.feignHystrix.OrdFeignSentinelApplication: Post-processing of merged bean definition failed; nested exception is java.lang.IllegalArgumentException: block static method can not be found in bean[restTemplate]. The right method signature is com.zjk.feignHystrix.Execptions.ExceptionsUtil#handleBlock[HttpRequest, byte[], ClientHttpRequestExecution, BlockException], please check your class name, method name and arguments at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:570) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:515) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:320) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE] at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:277) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE] at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1251) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE] at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1171) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE] at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:593) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE] ... 19 common frames omitted Caused by: java.lang.IllegalArgumentException: block static method can not be found in bean[restTemplate]. The right method signature is com.zjk.feignHystrix.Execptions.ExceptionsUtil#handleBlock[HttpRequest, byte[], ClientHttpRequestExecution, BlockException], please check your class name, method name and arguments at com.alibaba.cloud.sentinel.custom.SentinelBeanPostProcessor.checkBlock4RestTemplate(SentinelBeanPostProcessor.java:125) ~[spring-cloud-alibaba-sentinel-2.1.0.RELEASE.jar:2.1.0.RELEASE] at com.alibaba.cloud.sentinel.custom.SentinelBeanPostProcessor.checkSentinelRestTemplate(SentinelBeanPostProcessor.java:87) ~[spring-cloud-alibaba-sentinel-2.1.0.RELEASE.jar:2.1.0.RELEASE] at com.alibaba.cloud.sentinel.custom.SentinelBeanPostProcessor.postProcessMergedBeanDefinition(SentinelBeanPostProcessor.java:80) ~[spring-cloud-alibaba-sentinel-2.1.0.RELEASE.jar:2.1.0.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyMergedBeanDefinitionPostProcessors(AbstractAutowireCapableBeanFactory.java:1077) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:567) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE] ... 28 common frames omitted
这是ExecptionUtil的官网文档
https://github.com/alibaba/spring-cloud-alibaba/blob/master/spring-cloud-alibaba-examples/sentinel-example/sentinel-core-example/src/main/java/com/alibaba/cloud/examples/ExceptionUtil.javahttps://github.com/alibaba/spring-cloud-alibaba/blob/master/spring-cloud-alibaba-examples/sentinel-example/sentinel-core-example/src/main/java/com/alibaba/cloud/examples/ExceptionUtil.java这是我ExecptionUtil的代码
import com.alibaba.cloud.sentinel.rest.SentinelClientHttpResponse;
import com.alibaba.csp.sentinel.slots.block.BlockException;
import com.alibaba.fastjson.JSON;
import com.netflix.client.http.HttpRequest;
import com.zjk.feignHystrix.entity.TbProduct;
import org.springframework.http.client.ClientHttpRequestExecution;
public class ExceptionsUtil {
//限流熔断业务逻辑
public static SentinelClientHttpResponse handleBlock(HttpRequest request, byte[] body, ClientHttpRequestExecution execution, BlockException ex) {
TbProduct tbProduct = new TbProduct();
tbProduct.setProductName("限流熔断降级");
return new SentinelClientHttpResponse(JSON.toJSonString(tbProduct));
}
//异常熔断业务逻辑
public static SentinelClientHttpResponse handleFallback(HttpRequest request, byte[] body, ClientHttpRequestExecution execution, BlockException ex) {
TbProduct tbProduct = new TbProduct();
tbProduct.setProductName("异常熔断降级");
return new SentinelClientHttpResponse(JSON.toJSonString(tbProduct));
}
}
谨记。
