目录

一、项目搭建

1.父项目搭建

2.子项目的搭建

 二、项目展示

一、项目搭建

1.父项目搭建

步骤：

        1 选择maven项目作为父项目，修改为1.8之后直接点击next

        2  定义父项目的名称，修改Artifct Coordinates ---> GroupId 然后点击finsh就可以啦

        3 修改pom.xml

1 选择maven项目作为父项目，修改为1.8之后直接点击next

 2  定义父项目的名称，修改Artifct Coordinates ---> GroupId 然后点击finsh就可以啦 

3 修改pom.xml 

4.0.0com.zkingspcloud-shop1.0-SNAPSHOTshop-commonpom1.8UTF-8UTF-82.3.2.RELEASEHoxton.SR92.2.6.RELEASEorg.springframework.bootspring-boot-dependencies${spring-boot.version}pomimport

2.子项目的搭建

搭建一个shop-common的maven子项目

当建完这个项目时 父项目的pom.xml就会自动多出几行代码 ，这表示

关联成功 

shop-common的pom.xml

spcloud-shopcom.zking1.0-SNAPSHOT4.0.0shop-commonorg.projectlomboklombokcom.alibabafastjson1.2.56mysqlmysql-connector-java5.1.44

创建springboot项目： 

直接选择next，然后finsh就可以了 

 以同样的方式创建一下三个

 pom.xml

spcloud-shopcom.zking1.0-SNAPSHOT4.0.0shop-orderorg.springframework.bootspring-boot-starter-webcom.zkingshop-common1.0-SNAPSHOT

=====================以上的基本配置完成=========================

 二、项目展示

写入实体类

 order

package com.zking.model;import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;@Data
@AllArgsConstructor
@NoArgsConstructor
public class Order {private Long oid;//订单id//用户private Integer uid;//用户idprivate String username;//用户名//商品private Integer pid;//商品idprivate String pname;//商品名称private Double pprice;//商品单价//数量private Integer number;//购买数量
}

Product

package com.zking.model;import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;@Data
@NoArgsConstructor
@AllArgsConstructor
public class Product {private Integer pid;//主键private String pname;//商品名称private Double pprice;//商品价格private Integer stock;//库存
}

User

package com.zking.model;import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;//用户
@Data//不再去写set和get方法
@NoArgsConstructor
@AllArgsConstructor
public class User {private Integer uid;//主键private String username;//用户名private String password;//密码private String telephone;//手机号
}

编写aplication.yml

编写controller层

shop-user：

package com.zking.shopuser.controller;import com.zking.model.User;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;/*** @author 小何吖* @create 2022-11-24 15:47*/@RestController
@RequestMapping("/user")
public class UserController {@RequestMapping("/get/{id}")public User get(@PathVariable("id") Integer id){return new User(id,"骚强","5438","3838438");}
}

 运行，选中写了controller的运行

 shop-product：

package com.zking.shopproduct.controller;import com.zking.model.Product;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;/*** @author 小何吖* @create 2022-11-24 15:52*/@RestController
@RequestMapping("/product")
public class ProductContoller {@RequestMapping("/get/{pid}")public Product get(@PathVariable("pid") Integer pid){return new Product(pid,"金瓶梅",66d,20);}}

 shop-order:

package com.zking.shoporder.controller;import com.zking.model.Order;
import com.zking.model.Product;
import com.zking.model.User;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;/*** @author 小何吖* @create 2022-11-24 15:43*/
@RestController
@RequestMapping("/order")
public class OrderController {@Autowiredprivate RestTemplate restTemplate;@RequestMapping("/get/{uid}/{pid}")public Order get(@PathVariable("uid") Integer uid,@PathVariable("pid") Integer pid){/**要在订单微服务调用 用户微服务、商品微服务、也就意味着跨项目调用**/User user = restTemplate.getForObject("http://localhost:8070/user/get/" + uid, User.class);Product product = restTemplate.getForObject("http://localhost:8080/product/get/" + pid, Product.class);Order order = new Order();order.setUsername(user.getUsername());order.setUid(user.getUid());order.setPprice(product.getPprice());order.setPname(product.getPname());order.setPid(product.getPid());order.setOid(System.currentTimeMillis());order.setNumber(product.getStock());return order;}
}

这就是简单的微服务，没有连接数据库的简单应用