• SpringBoot实战(十)之使用Spring Boot Actuator构建RESTful Web服务


    一、导入依赖

    <?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">
        <modelVersion>4.0.0</modelVersion>
    
        <groupId>org.springframework</groupId>
        <artifactId>gs-actuator-service</artifactId>
        <version>0.1.0</version>
    
        <parent>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-parent</artifactId>
            <version>1.5.8.RELEASE</version>
        </parent>
    
        <dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-actuator</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-test</artifactId>
                <scope>test</scope>
            </dependency>
        </dependencies>
    
        <properties>
            <java.version>1.8</java.version>
        </properties>
    
        <build>
            <plugins>
                <plugin>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-maven-plugin</artifactId>
                </plugin>
            </plugins>
        </build>
    
    </project>

    二、构建实体

    package hello;
    
    public class Greeting {
    
        private final long id;
        private final String content;
    
        public Greeting(long id, String content) {
            this.id = id;
            this.content = content;
        }
    
        public long getId() {
            return id;
        }
    
        public String getContent() {
            return content;
        }
    
    }

    三、编写Controller

    package hello;
    
    import java.util.concurrent.atomic.AtomicLong;
    
    import org.springframework.stereotype.Controller;
    import org.springframework.web.bind.annotation.GetMapping;
    import org.springframework.web.bind.annotation.RequestParam;
    import org.springframework.web.bind.annotation.ResponseBody;
    
    @Controller
    public class HelloWorldController {
    
        private static final String template = "Hello, %s!";
        private final AtomicLong counter = new AtomicLong();
    
        @GetMapping("/hello-world")
        @ResponseBody
        public Greeting sayHello(@RequestParam(name="name", required=false, defaultValue="Stranger") String name) {
            return new Greeting(counter.incrementAndGet(), String.format(template, name));
        }
    
    }

    四、编写配置文件

    server.port: 9000
    management.server.port: 9001
    management.server.address: 127.0.0.1

    五、编写启动类

    package hello;
    
    import org.springframework.boot.SpringApplication;
    import org.springframework.boot.autoconfigure.SpringBootApplication;
    /**
     * 使用Spring Boot Actuator构建RESTful Web服务
     *
     */
    @SpringBootApplication
    public class HelloWorldApplication {
    
        public static void main(String[] args) {
            SpringApplication.run(HelloWorldApplication.class, args);
        }
    
    }

    六、编写测试类

    /*
     * Copyright 2012-2014 the original author or authors.
     *
     * 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 hello;
    
    import java.util.Map;
    
    import org.junit.Test;
    import org.junit.runner.RunWith;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.beans.factory.annotation.Value;
    import org.springframework.boot.test.context.SpringBootTest;
    import org.springframework.boot.test.web.client.TestRestTemplate;
    import org.springframework.http.HttpStatus;
    import org.springframework.http.ResponseEntity;
    import org.springframework.test.context.TestPropertySource;
    import org.springframework.test.context.junit4.SpringRunner;
    
    import static org.assertj.core.api.BDDAssertions.then;
    
    /**
     * Basic integration tests for service demo application.
     *
     * @author Dave Syer
     */
    @RunWith(SpringRunner.class)
    @SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
    @TestPropertySource(properties = {"management.port=0"})
    public class HelloWorldApplicationTests {
    
        @org.springframework.boot.context.embedded.LocalServerPort
        private int port;
    
        @Value("${local.management.port}")
        private int mgt;
    
        @Autowired
        private TestRestTemplate testRestTemplate;
    
        @Test
        public void shouldReturn200WhenSendingRequestToController() throws Exception {
            @SuppressWarnings("rawtypes")
            ResponseEntity<Map> entity = this.testRestTemplate.getForEntity(
                    "http://localhost:" + this.port + "/hello-world", Map.class);
    
            then(entity.getStatusCode()).isEqualTo(HttpStatus.OK);
        }
    
        @Test
        public void shouldReturn200WhenSendingRequestToManagementEndpoint() throws Exception {
            @SuppressWarnings("rawtypes")
            ResponseEntity<Map> entity = this.testRestTemplate.getForEntity(
                    "http://localhost:" + this.mgt + "/actuator/info", Map.class);
    
            then(entity.getStatusCode()).isEqualTo(HttpStatus.OK);
        }
    
    }
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  • 原文地址:https://www.cnblogs.com/youcong/p/9409550.html
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