示例GitHub源码地址:https://github.com/AngelSXD/springcloud 1.首先使用feign调用,需要配置熔断器 2.配置熔断器需要将熔断器注入Bean,熔断器类上需要加注解@Component,确保可以被spring扫描到 3.熔断器类需要实现feignClient接口,并且重写 feignClient接口中的所有方法,做降级处理逻辑 4.需要在feignClient上的注解中,通过fallback属性来指明熔断器.class,等服务熔断的时候,来执行熔断器…

报错如下: java.io.IOException: javafx.fxml.LoadException: /C:/User.................test.fxml at com.oracle.javafx.scenebuilder.kit.fxom.FXOMLoader.load(FXOMLoader.java:92) at com.oracle.javafx.scenebuilder.kit.fxom.FXOMDocument.<init>(FXOMDocument.java:…

spark 2.1.1 一 问题重现 spark-submit --master local[*] --class app.package.AppClass --jars /jarpath/zkclient-0.3.jar --driver-memory 1g app.jar 报错 Java HotSpot(TM) 64-Bit Server VM warning: Setting CompressedClassSpaceSize has no effect when compressed cl…

spring boot整合elasticsearch, 启动报错: Caused by: java.lang.IllegalStateException: availableProcessors ], rejecting [] at io.netty.util.NettyRuntime$AvailableProcessorsHolder.setAvailableProcessors(NettyRuntime.java:) ~[netty-common-.Final.jar:.Final] at…

使用ziplin依赖: <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-sleuth-zipkin</artifactId> </dependency> 应用启动报错:Caused by: java.lang.ClassNotFoundException: zipkin.Component 解决方法:指定更高版本的sp…

from:http://blog.csdn.net/changemyself/article/details/7861525 08-13 18:29:22.924: E/AndroidRuntime(1875): Caused by: java.lang.ClassNotFoundException:XXXXX in loader dalvik.system.PathClassLoader[/data/app/XXXX.apk] 我想大家经常因为疏忽出现ClassNotFoundExceptio…

14/02/28 20:29:48 INFO mapred.JobClient: Task Id : attempt_201402281833_0004_m_000000_1, Status : FAILED java.lang.RuntimeException: java.lang.ClassNotFoundException: cmd.CmdWordCount$MyMapper at org.apache.hadoop.conf.Configuration.getClass(Configur…

-noverify -Dspring.output.ansi.enabled=always -Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.port= -Dcom.sun.management.jmxremote.authenticate= -classpath "C:\Program Files\Java\jdk1.8.0_191\jre\lib\charsets.jar;C:\Program Files\Java\j…

使用spring boot对项目改造,启动报错: Caused by: java.lang.IllegalArgumentException: At least one JPA metamodel must be present! 估计是跟多个数据源有关,改成如下这样就可以了 @SpringBootApplication @EnableAutoConfiguration(exclude={ JpaRepositoriesAutoConfiguration.class//禁止springboot自…

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'orderServiceImpl': Unsatisfied dependency expressed through field 'memberFeign'; nested exception is org.springframework.beans.factory.BeanCreationExcept…