init

sentinel/sentinel-demo/sentinel-demo-transport-spring-mvc/pom.xml

@@ -0,0 +1,34 @@
+<?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>sentinel-demo</artifactId>
+        <groupId>com.alibaba.csp</groupId>
+        <version>1.8.3</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>sentinel-demo-transport-spring-mvc</artifactId>
+
+    <properties>
+        <spring.boot.version>2.1.3.RELEASE</spring.boot.version>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>com.alibaba.csp</groupId>
+            <artifactId>sentinel-core</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>com.alibaba.csp</groupId>
+            <artifactId>sentinel-transport-spring-mvc</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+            <version>${spring.boot.version}</version>
+        </dependency>
+    </dependencies>
+
+</project>

sentinel/sentinel-demo/sentinel-demo-transport-spring-mvc/src/main/java/com/alibaba/csp/sentinel/demo/transport/springmvc/TransportSpringMvcDemoApplication.java

@@ -0,0 +1,96 @@
+/*
+ * Copyright 1999-2019 Alibaba Group Holding Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.alibaba.csp.sentinel.demo.transport.springmvc;
+
+import com.alibaba.csp.sentinel.Entry;
+import com.alibaba.csp.sentinel.SphU;
+import com.alibaba.csp.sentinel.init.InitExecutor;
+import com.alibaba.csp.sentinel.slots.block.BlockException;
+import com.alibaba.csp.sentinel.slots.block.RuleConstant;
+import com.alibaba.csp.sentinel.slots.block.flow.FlowRule;
+import com.alibaba.csp.sentinel.slots.block.flow.FlowRuleManager;
+import com.alibaba.csp.sentinel.transport.command.SentinelApiHandlerAdapter;
+import com.alibaba.csp.sentinel.transport.command.SentinelApiHandlerMapping;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.annotation.Bean;
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.ResponseBody;
+
+import java.time.LocalDateTime;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * <p>Add the JVM parameter to connect to the dashboard:</p>
+ * {@code -Dcsp.sentinel.dashboard.server=127.0.0.1:8080 -Dproject.name=sentinel-demo-transport-spring-mvc}
+ *
+ * <p>Add the JVM parameter to tell dashboard your application port:</p>
+ * {@code -Dcsp.sentinel.api.port=10000}
+ *
+ * @author shenbaoyong
+ */
+@SpringBootApplication
+@Controller
+public class TransportSpringMvcDemoApplication {
+
+    public static void main(String[] args) {
+        triggerSentinelInit();
+        initFlowRules();
+        SpringApplication.run(TransportSpringMvcDemoApplication.class);
+    }
+
+    public static void initFlowRules() {
+        List<FlowRule> rules = new ArrayList<>();
+        FlowRule rule = new FlowRule();
+        rule.setResource("demo-hello-api");
+        rule.setGrade(RuleConstant.FLOW_GRADE_QPS);
+        rule.setCount(1);
+        rules.add(rule);
+        FlowRuleManager.loadRules(rules);
+    }
+
+    @GetMapping("/hello")
+    @ResponseBody
+    public String hello() {
+        Entry entry = null;
+        try {
+            entry = SphU.entry("demo-hello-api");
+            return "ok: " + LocalDateTime.now();
+        } catch (BlockException e1) {
+            return "helloBlockHandler: " + LocalDateTime.now();
+        } finally {
+            if (entry != null) {
+                entry.exit();
+            }
+        }
+    }
+
+    private static void triggerSentinelInit() {
+        new Thread(() -> InitExecutor.doInit()).start();
+    }
+
+    @Bean
+    public SentinelApiHandlerMapping sentinelApiHandlerMapping() {
+        return new SentinelApiHandlerMapping();
+    }
+
+    @Bean
+    public SentinelApiHandlerAdapter sentinelApiHandlerAdapter() {
+        return new SentinelApiHandlerAdapter();
+    }
+}

sentinel/sentinel-demo/sentinel-demo-transport-spring-mvc/src/main/resources/application.properties

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+server.port=10000