Spring Cloud Alibaba Sentinel控制台详解

Author: wuyouzhuguli

77.spring-cloud-alibaba-sentinel-dashboard-guide/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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-starter-parent</artifactId>
+        <version>2.2.5.RELEASE</version>
+        <relativePath/> <!-- lookup parent from repository -->
+    </parent>
+    <groupId>cc.mrbird</groupId>
+    <artifactId>spring-cloud-alibaba-sentinel-dashboard-guide</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <name>spring-cloud-alibaba-sentinel-dashboard-guide</name>
+    <description>Demo project for Spring Boot</description>
+
+    <properties>
+        <java.version>1.8</java.version>
+        <spring-cloud.version>Hoxton.SR3</spring-cloud.version>
+        <com-alibaba-cloud.version>2.2.0.RELEASE</com-alibaba-cloud.version>
+    </properties>
+
+    <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-sentinel</artifactId>
+        </dependency>
+    </dependencies>
+
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.springframework.cloud</groupId>
+                <artifactId>spring-cloud-dependencies</artifactId>
+                <version>${spring-cloud.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+            <dependency>
+                <groupId>com.alibaba.cloud</groupId>
+                <artifactId>spring-cloud-alibaba-dependencies</artifactId>
+                <version>${com-alibaba-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>
+</project>

77.spring-cloud-alibaba-sentinel-dashboard-guide/src/main/java/cc/mrbird/sentinel/SpringCloudAlibabaSentinelFlowControlApplication.java

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+package cc.mrbird.sentinel;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class SpringCloudAlibabaSentinelFlowControlApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(SpringCloudAlibabaSentinelFlowControlApplication.class, args);
+    }
+
+}

77.spring-cloud-alibaba-sentinel-dashboard-guide/src/main/java/cc/mrbird/sentinel/controller/TestController.java

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+package cc.mrbird.sentinel.controller;
+
+import cc.mrbird.sentinel.service.HelloService;
+import com.alibaba.csp.sentinel.annotation.SentinelResource;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+/**
+ * @author MrBird
+ */
+@RestController
+public class TestController {
+
+    private Logger log = LoggerFactory.getLogger(this.getClass());
+
+    @Autowired
+    private HelloService helloService;
+
+    @GetMapping("test1")
+    public String test1() {
+        throw new RuntimeException("服务异常");
+        // return "test1";
+    }
+
+    @GetMapping("test2")
+    public String test2() {
+        return "test2 " + helloService.hello();
+    }
+
+    @GetMapping("buy")
+    @SentinelResource(value = "buy")
+    public String buy(String goodName, Integer count) {
+        return "买" + count + "份" + goodName;
+    }
+}

77.spring-cloud-alibaba-sentinel-dashboard-guide/src/main/java/cc/mrbird/sentinel/service/HelloService.java

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+package cc.mrbird.sentinel.service;
+
+import com.alibaba.csp.sentinel.annotation.SentinelResource;
+import org.springframework.stereotype.Service;
+
+/**
+ * @author MrBird
+ */
+@Service
+public class HelloService {
+
+    @SentinelResource("hello")
+    public String hello() {
+        return "hello";
+    }
+}

77.spring-cloud-alibaba-sentinel-dashboard-guide/src/main/resources/application.yml

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+server:
+  port: 8081
+spring:
+  application:
+    name: my-project
+  cloud:
+    sentinel:
+      transport:
+        dashboard: localhost:8080
+        port: 8719
+      web-context-unify: false