下载Release v1.8.6 · alibaba/Sentinel · GitHub

直接运行java -jar sentinel-dashboard-1.8.6.jar

启动成功。

配置spring cloud alibaba

工程构件采用的是maven，父pom的配置。

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0</modelVersion>
	<modules>
		<module>gateway</module>
		<module>user</module>
		<module>order</module>
		<module>eureka</module>
		<module>common</module>
	</modules>

	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>3.0.5</version>
		<relativePath/> <!-- lookup parent from repository -->
	</parent>

	<groupId>com.ozzn</groupId>
	<artifactId>ozzn-parent</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<name>ozzn-parent</name>

	<properties>
		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
		<java.version>1.8</java.version>
		<spring.cloud-version>2022.0.2</spring.cloud-version>
		<spring.cloud.alibaba.version>2022.0.0.0-RC1</spring.cloud.alibaba.version>
	</properties>

	<packaging>pom</packaging>

	<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>
			<dependency>
				<groupId>org.projectlombok</groupId>
				<artifactId>lombok</artifactId>
				<version>1.18.24</version>
			</dependency>
		</dependencies>
	</dependencyManagement>

</project>

一定注意版本兼容问题：

版本说明 · alibaba/spring-cloud-alibaba Wiki · GitHub

新建一个user服务

<?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">
    <parent>
        <artifactId>user</artifactId>
        <groupId>com.ozzn</groupId>
        <version>0.0.1-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>user-web</artifactId>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-sentinel</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>
        <dependency>
            <groupId>com.ozzn</groupId>
            <artifactId>common</artifactId>
            <version>${version}</version>
        </dependency>
        <dependency>
            <groupId>com.ozzn</groupId>
            <artifactId>user-client</artifactId>
            <version>${version}</version>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <executions>
                    <execution>
                        <goals>
                            <goal>repackage</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

</project>

yml配置

server:
  port: 8001

spring:
  application:
    name: user
  cloud:
    sentinel:
      eager: true
      transport:
        port: 8720
        dashboard: 127.0.0.1:8080
    nacos:
      discovery:
        namespace: ozzn
        server-addr: 127.0.0.1:8848
      config:
        namespace: ozzn
        server-addr: 127.0.0.1:8848
        #指定文件名，没有则默认${spring.application.name}
        #指定文件后缀
        file-extension: yml
  config:
    import:
      - optional:nacos:${spring.application.name}.${spring.cloud.nacos.config.file-extension}

启动user应用后查看控制台。

// 该配置保证启动立即注册

spring:
  cloud:
    sentinel:
      eager: true