架构之旅-多层架构-服务

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简述

本文中，将使用spring boot来构建服务，使用swagger2来提供api ui。最终部署到linux下tomcat中。

源代码

iarc-service

环境

IDE: IntelliJ IDEA
JDK: 1.8.0_u162
Framework: Spring Boot, Swagger2
WebServer: Tomcat(本地端口8088)

开发

工程结构

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--root(maven pom父工程)
----iarc-entity (实体类 module)
----iarc-service-api (服务接口 module)
----iarc-service (服务站点-spring boot)
----iarc-data (数据服务 module)

root

pom.xml中值得注意的只有packaging节点，类型为pom

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<packaging>pom</packaging>

iarc-entity

设置root作为parent，使用lombok来简化Java代码

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<parent>
    <groupId>cn.icmyfuture.iarc</groupId>
    <artifactId>root</artifactId>
    <version>0.0.1-SNAPSHOT</version>
</parent>

<dependencies>
    <!--lombok-->
    <dependency>
        <groupId>org.projectlombok</groupId>
        <artifactId>lombok</artifactId>
    </dependency>
</dependencies>

iarc-service

  • pom.xml中packaging节点类型为war，dependencies/build使用spring boot标准配置
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<packaging>war</packaging>
...
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-web</artifactId>
</dependency>
...
<!-- springfox -->
<dependency>
    <groupId>io.springfox</groupId>
    <artifactId>springfox-swagger2</artifactId>
    <version>${swagger2.version}</version>
</dependency>
<dependency>
    <groupId>io.springfox</groupId>
    <artifactId>springfox-swagger-ui</artifactId>
    <version>${swagger2.version}</version>
</dependency>
...
<build>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
        </plugin>
    </plugins>
</build>
  • 端口和JMX唯一性配置
    ./iarc-service/src/main/resources/application.properties中设置参数
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server.port=8001
endpoints.jmx.unique-names=true
spring.jmx.default-domain=iarc.data
  • swagger2 configuration class
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package cn.icmyfuture.iarc.service.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import springfox.documentation.builders.ApiInfoBuilder;
import springfox.documentation.builders.PathSelectors;
import springfox.documentation.builders.RequestHandlerSelectors;
import springfox.documentation.service.ApiInfo;
import springfox.documentation.spi.DocumentationType;
import springfox.documentation.spring.web.plugins.Docket;
import springfox.documentation.swagger2.annotations.EnableSwagger2;

@Configuration
@EnableSwagger2
public class Swagger2Config {
    @Bean
    public Docket createRestApi() {
        return new Docket(DocumentationType.SWAGGER_2)
                .apiInfo(apiInfo())
                .select()
                .apis(RequestHandlerSelectors.basePackage("cn.icmyfuture.iarc.service.controller"))
                .paths(PathSelectors.any())
                .build();
    }

    private ApiInfo apiInfo() {
        return new ApiInfoBuilder()
                .title("Spring Boot using Swagger2 for RESTful APIs")
                .description("ivan's swagger2")
                .termsOfServiceUrl("http://localhost:8001")
                .contact("ivan")
                .version("1.0")
                .build();
    }

}

调试

IntelliJ IDEA中Run ServiceApplication，使用spring boot内置的tomcat容器作为宿主，

  • 输入http://localhost:8001/user/getUser/123来进行验证
  • 输入http://localhost:8001/swagger-ui.html来查看api ui

部署

打包

打开IntelliJ IDEA中Maven Projects窗口。由于使用了maven父工程，打包时需要先执行root相关操作

  • root
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Lifecycle - 依次clean compile install
  • iarc-service
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Lifecyle - 依次clean compile package

部署到linux下tomcat中

  • linux下jdk以及tomcat的安装/自启动可参考这里
  • 将打包好的iarc-service.war复制到 $CATALINA_HOME/webapps目录下，tomcat会自动解压war包，访问http://localhost:8080/iarc-service/user/getUser/123进行验证

参考