SpringCloud Feign 启动报错

本人用的工具是 Spring Tools Suite

在测试springcloud feign 时 ,

添加依赖如下:

<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>1.5.4.RELEASE</version>
	</parent>
	<dependencies>
		<!-- Spring Cloud Netflix Eureka Server 依赖 -->
		<dependency>
			<groupId>org.springframework.cloud</groupId>
			<artifactId>spring-cloud-starter-eureka</artifactId>
		</dependency>
		<!-- Spring Boot Test 依赖 -->
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-test</artifactId>
			<scope>test</scope>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
		</dependency>
		<!-- 开启feign  -->
		<dependency>
   			<groupId>org.springframework.cloud</groupId>
    		<artifactId>spring-cloud-starter-openfeign</artifactId>
    		<version>2.0.0.RELEASE</version>
		</dependency>
		<!-- 热部署 -->
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-devtools</artifactId>
			<optional>true</optional>
			<scope>true</scope>
		</dependency>
		<!-- 监控机制 -->
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-actuator</artifactId>
		</dependency>
	</dependencies>
	<dependencyManagement>
		<dependencies>
			<!-- Spring Cloud Netflix 依赖 -->
			<dependency>
				<groupId>org.springframework.cloud</groupId>
				<artifactId>spring-cloud-netflix</artifactId>
				<version>1.3.1.RELEASE</version>
				<type>pom</type>
				<scope>import</scope>
			</dependency>
		</dependencies>
	</dependencyManagement>

	<!-- 添加spring-boot-maven-plugin： -->
	<build>
		<plugins>
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
				<configuration>
					<!--fork : 如果没有该项配置，可能devtools不会起作用，即应用不会restart -->
					<fork>true</fork>
				</configuration>
			</plugin>
		</plugins>
	</build>

接着启动报如下错误

Caused by: java.lang.ClassNotFoundException: org.springframework.cloud.client.loadbalancer.LoadBalancedRetryFactory
    at java.net.URLClassLoader.findClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    ... 29 more

找不到 LoadBalancedRetryFactory 这个类 , 之后自己检测了jar包之后,确实没有这个包

之后想了一些办法, 重新去 mavenrepository.com上面找了 feign 一个低版本的依赖

<!-- 开启feign  -->
		<dependency>
   			<groupId>org.springframework.cloud</groupId>
    		<artifactId>spring-cloud-starter-openfeign</artifactId>
    		<version>1.4.5.RELEASE</version>
		</dependency>

重新启动, 发现启动成功. 

springcloud中 , 大部分启动报错 添加依赖报错 一般都是由于依赖版本问题导致的错误.