Springcloud alibaba 【1】环境搭建

一、开发环境

• JDK 1.8
• SpringBoot 2.1.7.RELEASE
• SpringCloud-Alibaba 2.1.2.RELEASE
• 数据库MySQL 5.8

二、项目结构

三， 新建父工程

新建一个maven父工程，springcloud-alibaba,引入pom

    <!--    版本依赖-->
    <properties>
        <java.version>1.8</java.version>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <spring-cloud.version>Greenwich.RELEASE</spring-cloud.version>
        <spring-cloud-alibaba.version>2.1.2.RELEASE</spring-cloud-alibaba.version>
    </properties>
    <!--父工程-->
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.7.RELEASE</version>
    </parent>
<!--    版本控制-->
    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>${spring-cloud.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <dependency>
                <groupId>com.alibaba.cloud</groupId>
                <artifactId>spring-cloud-alibaba-dependencies</artifactId>
                <version>${spring-cloud-alibaba.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>

        </dependencies>
    </dependencyManagement>

因为我们不需要父工程不需要写任何代码。我们可以把src文件删除掉。

四、新建公共服务

下一步我们创建公共服务，同样新建一个maven工程 shop-common,引入pom

 <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.58</version>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.26</version>
        </dependency>
    </dependencies>

新建包路径，注意最好不要使用com.alibaba,否则会因为与springcloud-alibaba包路径相同，出现一些稀奇古怪的问题

新建实体Order

package cn.alibaba.entity;

import lombok.Data;

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
@Data
@Entity(name = "shop_order")
public class Order {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long oid;

    private Integer uid;

    private Integer pid;

    private String pname;

    private Double pprice;

    private Integer stock;
}

新建实体Product

package cn.alibaba.entity;

import lombok.Data;

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;

@Data
@Entity(name = "shop_product")
public class Product {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Integer pid;

    private String pname;

    private Double pprice;

    private Integer stock;
}

 新建实体User

package cn.alibaba.entity;


import lombok.Data;

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;

@Data
@Entity(name="shop_user")
public class User {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Integer uid;
    private String username;
    private String password;
    private String telephone;
}

五、新建商品工程

创建商品工程，引入pom

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>shop-common</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
    </dependencies>

同样的步骤我们创建其他的服务，订单，用户。