Spring 初探(1) boot,swagger,eureka,hystrix

1.创建Spring Boot 简单响应请求服务
   1.在项目中pom.xml添加
      <dependency>
          <groupId>org.springframework.boot</groupId>
          <artifactId>spring-boot-starter-web</artifactId>
      </dependency>
   2.创建boot启动程序,关键字@SpringBootApplication ,其实现main方法,做为进程入口SpringApplication.run(DemoApplication.class, args);
   3.创建controller,关键字@RestController ,注册为contraller,@RequestMapping(value=&quot;/demo&quot;)为路径映射。

2.集成swagger
   1.在项目pom.xml中添加:
    <!--swagger集成-->
    <dependency>
        <groupId>io.springfox</groupId>
        <artifactId>springfox-swagger2</artifactId>
        <version>2.7.0</version>
    </dependency>
    <dependency>
        <groupId>io.springfox</groupId>
        <artifactId>springfox-swagger-ui</artifactId>
        <version>2.7.0</version>
    </dependency>  
   2.添加配置类
            @Component
            @Configuration
            @EnableSwagger2
            public class Swagger2Config{
                    @Bean
                    public Docket createRestApi() {
                        return new Docket(DocumentationType.SWAGGER_2)
                                .select()
                                .apis(RequestHandlerSelectors.any())
                                .paths(PathSelectors.any())
                                .build();
                    }
            }

3.集成eureka项目

        1.服务端从网上下载eureka.war,放在tomcat下,启动tomcat后,可通过http:ip:port/eureka进行访问

        2.客户端在项目中加入pom.xml中加入           

                    org.springframework.cloudspring-cloud-starter-eureka1.3.1.RELEASE

        3.在启动boot中添加@EnableEurekaClient启动eureka客户注册

        4.属性文件中需要添加以下内容

          #应用名称,若无此项,界面应用上则显示unknown

          spring.application.name=demo

          eureka.client.serviceUrl.defaultZone=http://localhost:8080/eureka/v2/

          eureka.instance.status-page-url=http://localhost:${server.port}/swagger-ui.html

4.集成Hystrix项目

        1.项目pom.xml添加          

            org.springframework.cloudspring-cloud-starter-hystrix1.3.1.RELEASE

        2.在boot启动器中添加@EnableHystrix注解,以启动hystrix

        3.在controller中方法中添加@HystrixCommand(fallbackMethod = &quot;方法名&quot;) 其中方法名中方法需要和原方法参数一致

5.集成Hystrix Dashboard

        1.项目pom.xml添加

            org.springframework.bootspring-boot-starter-actuatororg.springframework.cloudspring-cloud-starter-hystrix-dashboard

        2.boot启动类中添加@EnableHystrixDashboard

        3.启动查看EnableHystrixDashboard地址:http://ip:端口/hystrix,其在stream处添加http://ip:端口/hystrix.steam,点击monitor即可查看。


demo,git地址:https://github.com/leaf-it/demo.git


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转载自leaf-it.iteye.com/blog/2396990