使用springboot搭建微服务

1.整体结构

使用springboot搭建微服务
其中
aigou_basic_parent：公共的抽取
aigou_basic_util：公共工具的抽取
aigou_eureka_7001:注册中心
aigou_plat_parent:平台管理
aigou_plat_interface:平台接口
aigou_plat_service:平台服务
aigou_zuul_9527:网关服务

项目流程：
1.需求收集
2.需求分析
3.需求设计
4.项目设计
5.迭代开发
6.测试
7.上线

2.aigou_parent的配置

只配置pom.xml代码如下

<properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
        <spring-cloud.version>Finchley.SR1</spring-cloud.version>
        <springboot.version>2.0.5.RELEASE</springboot.version>
    </properties>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>${spring-cloud.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-dependencies</artifactId>
                <version>${springboot.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

3.注册中心的配置

3.1首先引入依赖
 <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
        </dependency>
        <!--eureka的服务依赖-->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
        </dependency>
    </dependencies>
3.2配置文件application.yml的配置
server:
  port: 7001
eureka:
  instance:
    hostname: eureka-7001.com
  client:
    fetch-registry: false #是否注册到eureka
    register-with-eureka: false #是否从服务获取注册信息
    service-url:
      defaultZone: http://eureka-7001.com:7001/eureka/ #这里是另一个中心的地址
3.3启动类
@SpringBootApplication
@EnableEurekaServer
public class Enreka7001Application {
    public static void main(String[] args) {
        SpringApplication.run(Enreka7001Application.class);
        }
}

4.公共工具的抽取

定义一个AjaxResult方便测试数据

public class AJaxResult {
    //是否成功
    private boolean success=true;
    //返回提示信息
    private String msg="登录成功";
    //对象值，在我们返回前台数据时方便返回一个对象
    private Object object;

    //向外返回AJaxResult对象
    public static AJaxResult me(){
        return  new AJaxResult();
    }

    public boolean isSuccess() {
        return success;
    }

    //在每个set方法返回当前对象，方便链式编程
    public AJaxResult setSuccess(boolean success) {
        this.success = success;
        return this;
    }

    public String getMsg() {
        return msg;
    }

    public AJaxResult setMsg(String msg) {
        this.msg = msg;
        return this;
    }

    public Object getObject() {
        return object;
    }

    public AJaxResult setObject(Object object) {
        this.object = object;
        return this;
    }

    @Override
    public String toString() {
        return "AJaxResult{" +
                "success=" + success +
                ", msg='" + msg + '\'' +
                ", object=" + object +
                '}';
    }
}

5.平台接口

5.1其中pom.xml只需引入对公共工具的依赖即可
<dependencies>
        <dependency>
            <groupId>cn.itsource.aigou</groupId>
            <artifactId>aigou_basic_util</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
    </dependencies>
5.2定义domain类方便测试‘
public class User {

    private String name;
    private String password;

    @Override
    public String toString() {
        return "User{" +
                "name='" + name + '\'' +
                ", password='" + password + '\'' +
                '}';
    }

    public User(String name, String password) {
        this.name = name;
        this.password = password;
    }

    public User() {
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }
}

6.平台服务的搭建

6.1pom.xml的配置
 <dependencies>
        <dependency>
            <artifactId>aigou_plat_interface</artifactId>
            <groupId>cn.itsource.aigou</groupId>
            <version>1.0-SNAPSHOT</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <!--配置中心支持-->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-config</artifactId>
        </dependency>

        <!-- Eureka 客户端依赖 -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
        </dependency>

        <!-- https://mvnrepository.com/artifact/io.springfox/springfox-swagger2 -->
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger2</artifactId>
            <version>2.9.2</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/io.springfox/springfox-swagger-ui -->
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger-ui</artifactId>
            <version>2.9.2</version>
        </dependency>

    </dependencies
6.2配置文件application.yml
server:
  port: 8001
spring:
  application:
    name: USER-PROVIDER
eureka:
  client:
    service-url:
      defaultZone: http://eureka-7001.com:7001/eureka  #告诉服务提供者要把服务注册到哪儿 #单机环境
  instance:
    prefer-ip-address: true #显示客户端真实ip
6.3启动类
@SpringBootApplication
@EnableEurekaClient
public class Service8001Application {
    public static void main(String[] args) {
        SpringApplication.run(Service8001Application.class);
        }
}
6.4controller层的代码

@RestController
@RequestMapping("/user")
public class UserController {

    //post跳转
    @RequestMapping(value = "/login",method = RequestMethod.POST)
    public AJaxResult login(@RequestBody User user){
        if(user!=null && !StringUtils.isEmpty(user.getName()) && !StringUtils.isEmpty(user.getPassword())){
            String name = user.getName();
            String password = user.getPassword();
            if("admin".equals(name)&&"123".equals(password)){
                return AJaxResult.me().setMsg("登录成功").setSuccess(true);
            }
        }
        return AJaxResult.me().setSuccess(false).setMsg("登录失败");
    }

    //get跳转
    @RequestMapping(value = "/login2",method = RequestMethod.GET)
    public AJaxResult login2(){
        return AJaxResult.me().setMsg("登录失败是get请求").setSuccess(false);
    }

}

如此就可以使用接口测试工具postman进行数据的测试使用springboot搭建微服务

7.服务网关zuul的配置

7.1引入依赖（其中配置了支持对swagger的支持，但增加了耦合度）
<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
    </dependency>

    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-starter-netflix-zuul</artifactId>
    </dependency>

        <!-- https://mvnrepository.com/artifact/io.springfox/springfox-swagger2 -->
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger2</artifactId>
            <version>2.9.2</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/io.springfox/springfox-swagger-ui -->
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger-ui</artifactId>
            <version>2.9.2</version>
        </dependency>
    </dependencies>
7.2application.yml的配置
server:
  port: 9527
spring:
  application:
    name: AIGOU-ZUUL-GATEWAY
eureka:
  client:
    service-url:
      defaultZone: http://localhost:7001/eureka
  instance:
      instance-id: gateway-9527.com
      prefer-ip-address: true
zuul:
   routes:
      aigouUser.serviceId: user-provider
      aigouUser.path: /user/**
   ignored-services: "*"
   prefix: /aigou
7.3启动类
@SpringBootApplication
@EnableZuulProxy
@EnableEurekaClient
public class Zuul9527Application {
    public static void main(String[] args) {
        SpringApplication.run(Zuul9527Application.class);
        }
}
7.4对swagger的支持定义两个类

7.4.1 SwaggerConfig 类

@Configuration
@EnableSwagger2
public class SwaggerConfig {

    @Bean
    public Docket createRestApi() {
        return new Docket(DocumentationType.SWAGGER_2)
                .apiInfo(apiInfo());
    }

    private ApiInfo apiInfo() {
        return new ApiInfoBuilder()
                .title("分布式购物系统")
                .description("购物系统接口文档说明")
                .termsOfServiceUrl("http://localhost:8081")
                .contact(new Contact("wbtest", "", "[email protected]"))
                .version("1.0")
                .build();
    }

}

7.4.2DocumentationConfig 类

@Component
@Primary
public class DocumentationConfig implements SwaggerResourcesProvider {
    @Override
    public List<SwaggerResource> get() {
        List resources = new ArrayList<>();
       //aigou网关前缀,user网关路径   ；swagger的路径 ，以后增加了接口就在这配置就ok
        resources.add(swaggerResource("用户系统", "/aigou/user/v2/api-docs", "2.0"));
        resources.add(swaggerResource("商品系统", "/aigou/product/v2/api-docs", "2.0"));
        resources.add(swaggerResource("基础系统", "/aigou/common/v2/api-docs", "2.0"));
        return resources;
    }

    private SwaggerResource swaggerResource(String name, String location, String version) {
        SwaggerResource swaggerResource = new SwaggerResource();
        swaggerResource.setName(name);
        swaggerResource.setLocation(location);
        swaggerResource.setSwaggerVersion(version);
        return swaggerResource;
    }
}

最后使用路径测试：http://127.0.0.1:9527/swagger-ui.html即可

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