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SpringBoot2.0整合SpringCloud Finchley @hystrixcommand注解找不到解决方案

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hystrix参数使用方法 。

通过注解@hystrixcommand的commandproperties去配置, 。

如下就是hystrix命令超时时间命令执行超时时间,为1000ms和执行是不启用超时 。

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@restcontroller
public class moviecontroller {
@autowired
private resttemplate resttemplate;
 
@getmapping ( "/movie/{id}" )
@hystrixcommand (commandproperties = {
@hystrixproperty (name = "execution.isolation.thread.timeoutinmilliseconds" , value = "1000" ),
@hystrixproperty (name = "execution.timeout.enabled" , value = "false" )},fallbackmethod = "findbyidfallback" )
public user findbyid( @pathvariable long id) {
return this .resttemplate.getforobject( "http://microservice-provider-user/simple/" + id, user. class );
}
 
/**
* fallback方法
* @param id
* @return
*/
public user findbyidfallback( long id) {
user user = new user();
user.setid(5l);
return user;
}
}

问题描述:

笔者在使用spring boot 2.0整合spring cloud finchley.rc2版本时,使用断路器 hystrix时候发现@hystrixcommand注解找不到,由于spring boot 2.0刚出没多久,所以这块资料网上很少,查阅资料说是新版本中不包含此注解了,需要重新引入.

报错信息:

SpringBoot2.0整合SpringCloud Finchley @hystrixcommand注解找不到解决方案

源码:

SpringBoot2.0整合SpringCloud Finchley @hystrixcommand注解找不到解决方案

SpringBoot2.0整合SpringCloud Finchley @hystrixcommand注解找不到解决方案

SpringBoot2.0整合SpringCloud Finchley @hystrixcommand注解找不到解决方案

解决方案:pom.xml添加依赖 。

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<dependency>
  <groupid>com.netflix.hystrix</groupid>
   <artifactid>hystrix-javanica</artifactid>
   <version>release</version>
</dependency>

完整pom.xml 。

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<?xml version= "1.0" encoding= "utf-8" ?>
<project xmlns= "http://maven.apache.org/pom/4.0.0" xmlns:xsi= "http://www.w3.org/2001/xmlschema-instance"
   xsi:schemalocation= "http://maven.apache.org/pom/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" >
   <modelversion> 4.0 . 0 </modelversion>
   <groupid>com.serverribbon</groupid>
   <artifactid>serverribbon</artifactid>
   <version> 0.0 . 1 -snapshot</version>
   <packaging>jar</packaging>
 
   <name>serverribbon</name>
   <description>demo project for spring boot</description>
 
   <parent>
    <groupid>org.springframework.boot</groupid>
    <artifactid>spring-boot-starter-parent</artifactid>
    <version> 2.0 . 2 .release</version>
    <relativepath/> <!-- lookup parent from repository -->
   </parent>
 
   <properties>
    <project.build.sourceencoding>utf-</project.build.sourceencoding>
    <project.reporting.outputencoding>utf-</project.reporting.outputencoding>
    <java.version> 1.8 </java.version>
    <spring-cloud.version>finchley.rc2</spring-cloud.version>
   </properties>
 
   <dependencies>
    <dependency>
      <groupid>org.springframework.cloud</groupid>
      <artifactid>spring-cloud-starter-netflix-eureka-server</artifactid>
    </dependency>
 
    <dependency>
      <groupid>org.springframework.cloud</groupid>
      <artifactid>spring-cloud-starter-ribbon</artifactid>
    </dependency>
 
    <dependency>
      <groupid>org.springframework.cloud</groupid>
      <artifactid>spring-cloud-starter-hystrix</artifactid>
    </dependency>
 
    <dependency>
      <groupid>com.netflix.hystrix</groupid>
      <artifactid>hystrix-javanica</artifactid>
      <version>release</version>
    </dependency>
 
    <dependency>
      <groupid>org.springframework.boot</groupid>
      <artifactid>spring-boot-starter-test</artifactid>
      <scope>test</scope>
    </dependency>
    <dependency>
      <groupid>com.netflix.hystrix</groupid>
      <artifactid>hystrix-core</artifactid>
      <version>release</version>
    </dependency>
     <dependency>
       <groupid>com.netflix.hystrix</groupid>
       <artifactid>hystrix-core</artifactid>
       <version>release</version>
     </dependency>
   </dependencies>
 
   <dependencymanagement>
    <dependencies>
      <dependency>
       <groupid>org.springframework.cloud</groupid>
       <artifactid>spring-cloud-dependencies</artifactid>
       <version>${spring-cloud.version}</version>
       <type>pom</type>
       <scope> import </scope>
      </dependency>
    </dependencies>
   </dependencymanagement>
 
   <build>
    <plugins>
      <plugin>
       <groupid>org.springframework.boot</groupid>
       <artifactid>spring-boot-maven-plugin</artifactid>
      </plugin>
    </plugins>
   </build>
 
   <repositories>
    <repository>
      <id>spring-milestones</id>
      <name>spring milestones</name>
      <url>https: //repo.spring.io/milestone</url>
      <snapshots>
       <enabled> false </enabled>
      </snapshots>
    </repository>
   </repositories>
 
 
</project>

在程序的启动类serviceribbonapplication 加@enablehystrix注解开启hystrix 。

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原文链接:https://blog.csdn.net/zjh_746140129/article/details/80697921 。

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