Springcloud 之 Nacos依赖（全）

Nacos依赖

<dependency>
    <groupId>com.alibaba.cloud</groupId>
    <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
</dependency>

application.properties

spring.application.name=service-user
spring.cloud.nacos.discovery.server-addr=xxxxxx:8848

Sentinel依赖

  <dependency>
      <groupId>com.alibaba.cloud</groupId>
      <artifactId>spring-cloud-starter-alibaba-sentinel</artifactId>
  </dependency>

配置文件：

feign.sentinel.enabled=true
spring.cloud.sentinel.transport.dashboard=localhost:8080

Feign依赖

<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-openfeign</artifactId>
</dependency>

ApiApplication.java

加注解==@EnableFeignClients==

UserClient.java

加注解

@FeignClient(name = "service-user")

负载均衡依赖

  <dependency>
      <groupId>org.springframework.cloud</groupId>
      <artifactId>spring-cloud-starter-loadbalancer</artifactId>
  </dependency>

配置中心依赖

<dependency>
    <groupId>com.alibaba.cloud</groupId>
    <artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
</dependency>

<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-bootstrap</artifactId>
</dependency>

需要将application.properties修改为**bootstrap.properties**

如果需要通过nacos动态修改并获取配置中的参数，需要在controller层上面加上**@RefreshScope**注解

网关依赖

<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-gateway</artifactId>
</dependency>

application.properties

spring.cloud.gateway.discovery.locator.enabled=true

关于SpringCloud的依赖版本

导入以上的依赖之后

 <properties>
        <java.version>11</java.version>
        <spring-cloud.version>2021.0.1</spring-cloud.version>
        <spring-cloud-alibaba-version>2021.0.1.0</spring-cloud-alibaba-version>
    </properties>

 <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>
            <dependency>
                <groupId>com.alibaba.cloud</groupId>
                <artifactId>spring-cloud-alibaba-dependencies</artifactId>
                <version>${
    
    spring-cloud-alibaba-version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
  </dependencyManagement>

注：spring-boot的版本应该改为2.6.3

  <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.6.3</version>
        <relativePath/> <!-- lookup parent from repository -->
  </parent>

结合以上的信息pom中的依赖为：

    // 版本信息
    <properties>
        <java.version>11</java.version>
        <spring-cloud.version>2021.0.1</spring-cloud.version>
        <spring-cloud-alibaba-version>2021.0.1.0</spring-cloud-alibaba-version>
    </properties>
    
    <dependencies>
    // 网关依赖
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-gateway</artifactId>
        </dependency>
    // 负载均衡依赖
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-loadbalancer</artifactId>
        </dependency>
    // nacos依赖
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
        </dependency>
    // bootstrap配置文件依赖
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-bootstrap</artifactId>
        </dependency>
    // openfeign依赖
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-openfeign</artifactId>
        </dependency>
    // 配置中心依赖  
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
        </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>
            <dependency>
                <groupId>com.alibaba.cloud</groupId>
                <artifactId>spring-cloud-alibaba-dependencies</artifactId>
                <version>${
    
    spring-cloud-alibaba-version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

注：这里面的注释导入pom中需要给注上，不然会报错，然后如果刷新之后显示报红没有引用，直接关闭idea,然后重启就可以了。