SpringCloud Netflix介绍

SpringCloud 核心技术

SpringCloud Demo

新建maven项目springcloud-demo,pom.xml:

<?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>com.procl</groupId>
    <artifactId>springcloud-demo</artifactId>
    <packaging>pom</packaging>
    <version>1.0-SNAPSHOT</version>
   <!-- SpringBoot:parent -->
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.3.9.RELEASE</version>
    </parent>

    <properties>
        <maven.compiler.source>8</maven.compiler.source>
        <maven.compiler.target>8</maven.compiler.target>
    </properties>

    <dependencies>
        <!-- Eureka -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
        </dependency>
        <!-- openfeign -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-openfeign</artifactId>
        </dependency>

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

        <!--swagger-->
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger2</artifactId>
            <version>2.8.0</version>
        </dependency>

        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger-ui</artifactId>
            <version>2.8.0</version>
        </dependency>
    </dependencies>

    <dependencyManagement>
        <dependencies>
            <!-- springcloud版本管理 -->
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>Hoxton.SR11</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

</project>

在springcloud-demo下新建module sp-commons

<?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>springcloud-demo</artifactId>
        <groupId>com.procl</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>

    <modelVersion>4.0.0</modelVersion>
    <artifactId>sp-commons</artifactId>

    <properties>
        <maven.compiler.source>8</maven.compiler.source>
        <maven.compiler.target>8</maven.compiler.target>
    </properties>

    <dependencies>
        <!-- lombok -->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>3.1.0</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>1.7.26</version>
        </dependency>
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-lang3</artifactId>
            <version>3.9</version>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
        </dependency>
    </dependencies>

</project>

在sp-commos下新建类

com.procl.commos.pojo.User

package com.procl.commons.pojo;

import lombok.Data;
import lombok.experimental.Accessors;


@Data
@Accessors(chain = true)
public class User {
    private Long userId;
    private String userName;
    private String passWord;
    private Integer score;
    private String salt;
    private Integer role;
}

com.procl.commos.pojo.Product

package com.procl.commons.pojo;

import lombok.Data;
@Data
public class Product {
    private Long productId;
    private String productName;
    private Long productStore;
}

com.procl.commos.pojo.Order

package com.procl.commons.pojo;

import lombok.Data;
import lombok.experimental.Accessors;

import java.util.Date;

@Data
@Accessors(chain = true)
public class Order {
    private Long id;
    private String orderId;
    private Long userId;
    private Long productId;
    private Integer productNum;
    private Date created;
}

com.procl.commos.pojo.ProductOrder

package com.procl.commons.pojo;

import lombok.Data;

@Data
public class ProductOrder {
    private Long productId;
    private Integer productNum;
}

com.procl.commons.config.SwaggerConfig

package com.procl.commons.config;

import org.springframework.context.annotation.Configuration;
import springfox.documentation.builders.ApiInfoBuilder;
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;

@EnableSwagger2
@Configuration
public class SwaggerConfig {
    /**
     * Swagger2的配置
     *
     * @return docket
     */
    public Docket createDocket() {
        ApiInfoBuilder apiInfoBuilder = new ApiInfoBuilder();
        ApiInfo apiInfo = apiInfoBuilder.title("接口文档").build();
        Docket docket = new Docket(DocumentationType.SWAGGER_2);

        docket.apiInfo(apiInfo);
        docket.select().apis(RequestHandlerSelectors.any());
        return docket;
    }
}

com.procl.commons.web.JsonResult

package com.procl.commons.web;

import jdk.nashorn.internal.objects.annotations.Constructor;
import lombok.Data;
import org.springframework.boot.context.properties.ConstructorBinding;


@Data
public class JsonResult {
    private Integer state = 1;
    private String message;
    private Object data;

    public JsonResult(Object data){
        this.data = data;
    }

    public JsonResult() {
    }

    public JsonResult(Exception e){
        this.state = 0;
        this.message = e.getMessage();
    }
}

com.procl.commons.service.UserService

package com.procl.commons.service;

import com.procl.commons.pojo.User;

import java.util.List;

public interface UserService {
    //获取用户
    User getUserByUserId(Long userId);

    List<User> getAllUser();

    //增加用户积分
    int addScore(Long userId,Integer score);

    String register(String userName,String passWord);

    String login(String userName,String passWord);
}

com.procl.commons.service.ProductService

package com.procl.commons.service;

import com.procl.commons.pojo.Product;
import com.procl.commons.pojo.ProductOrder;

import java.util.List;

public interface ProductService {

    //获取一个订单的商品列表
    List<Product> getProducts();

    //减少商品库存
    int decreaseStore(ProductOrder productOrder);

    Integer getProductNum(Long productId);
}

com.procl.commons.service.OrderService

package com.procl.commons.service;

import com.procl.commons.pojo.Order;
import com.procl.commons.pojo.ProductOrder;

import java.util.List;


public interface OrderService {
    //获取订单
    List<Order> getOrder(String orderId);
    //添加订单
    int insertOrder(List<ProductOrder> productOrderList);

    List<Order> getAllOrder();
}