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
<?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.zking</groupId>
<artifactId>spcloud-shop</artifactId>
<version>1.0-SNAPSHOT</version>
<modules>
<module>shop-common</module>
</modules>
<packaging>pom</packaging>
<!--依赖版本的锁定-->
<properties>
<java.version>1.8</java.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<spring-boot.version>2.3.2.RELEASE</spring-boot.version>
<spring-cloud.version>Hoxton.SR9</spring-cloud.version>
<spring-cloud-alibaba.version>2.2.6.RELEASE</spring-cloud-alibaba.version>
</properties>
<dependencyManagement>
<dependencies>
<!-- SpringBoot 依赖配置 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-dependencies</artifactId>
<version>${spring-boot.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
</project>
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
<?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>spcloud-shop</artifactId>
<groupId>com.zking</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>shop-common</artifactId>
<!--依赖-->
<dependencies>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.56</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.44</version>
</dependency>
</dependencies>
</project>
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
<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<parent>
<artifactId>spcloud-shop</artifactId>
<groupId>com.zking</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>shop-order</artifactId>
<dependencies>
<!--springboot-web-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!--shop-common-->
<dependency>
<groupId>com.zking</groupId>
<artifactId>shop-common</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
</dependencies>
</project>
=====================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id
private String username;//用户名
//商品
private Integer pid;//商品id
private 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 {
@Autowired
private 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