记录 Did you forget to include spring-cloud-starter-netflix-ribbon?

缺乏、安全感 2024-03-24 14:04 58阅读 0赞

接下来的报错是因为 Nacos 高版本引起的 笔者使用的是

2021.1

>小事 , 本来不想记录的, 可是看度娘的搜索结果 , 都是另一句 "Debug - Feign: Did you forget to include spring-cloud-starter-loadbalancer" , 并没有收到有关 ribbon 的这个错误, 所以就想着在这里记录一下 ,

主要版本如下

<properties>
            <java.version>1.8</java.version>
            <file_encoding>UTF-8</file_encoding>
            <spring-boot.version>2.2.4.RELEASE</spring-boot.version>
            <spring-cloud.version>Hoxton.SR3</spring-cloud.version>
            <com.alibaba.cloud.version>2021.1</com.alibaba.cloud.version>
        </properties>
    
    <dependencyManagement>
            <dependencies>
                
                <dependency>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-dependencies</artifactId>
                    <version>${spring-boot.version}</version>
                    <type>pom</type>
                    <scope>import</scope>
                </dependency>
                <dependency>
                    <groupId>org.springframework.cloud</groupId>
                    <artifactId>spring-cloud-dependencies</artifactId>
                    <version>${spring-cloud.version}</version>
                    <type>pom</type>
                    <scope>import</scope>
                </dependency>
                <dependency>
                    <groupId>com.alibaba.cloud</groupId>
                    <artifactId>spring-cloud-alibaba-dependencies</artifactId>
                    <version>${com.alibaba.cloud.version}</version>
                    <type>pom</type>
                    <scope>import</scope>
                </dependency>
        </dependencyManagement>

网上收到的有关loadbalancer的解决办法大多都是 , 在

spring-cloud-starter-alibaba-nacos-discovery 和  config 中屏蔽掉 ribbon  , 然后单独引入  loadbalancer , 至于为什么这么做 主要是因为 , 高版本的Nacod 不使用ribbon 来做负载均衡了 , 使用的是loadbalancer  , 所以 nacos自带的配置就会影响项目本身的ribbon

<dependency>
                <groupId>com.alibaba.cloud</groupId>
                <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
                <version>2.2.0.RELEASE</version>
                <exclusions>
                    <exclusion>
                        <groupId>org.springframework.cloud</groupId>
                        <artifactId>spring-cloud-starter-netflix-ribbon</artifactId>
                    </exclusion>
                </exclusions>
            </dependency>
    
    
    
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-loadbalancer</artifactId>
                <version>2.2.2.RELEASE</version>
            </dependency>

脑子稍微一转 ,便能相同, 他既然是ribbon 和 loadbalancer 互相影响, 那么上述的方式 就是通用公式一样, 翻转一下就可以了

<dependency>
                <groupId>com.alibaba.cloud</groupId>
                <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
                <exclusions>
                    <exclusion>
                        <groupId>org.springframework.cloud</groupId>
                        <artifactId>spring-cloud-loadbalancer</artifactId>
                    </exclusion>
                </exclusions>
            </dependency>
            <dependency>
                <groupId>com.alibaba.cloud</groupId>
                <artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
                <exclusions>
                    <exclusion>
                        <groupId>org.springframework.cloud</groupId>
                        <artifactId>spring-cloud-loadbalancer</artifactId>
                    </exclusion>
                </exclusions>
            </dependency>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-netflix-ribbon</artifactId>
            </dependency>

这样就ok 了

记录 Did you forget to include spring-cloud-starter-netflix-ribbon?

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