• 【SpringCloud】2-SpringCloud微服务架构实例-订单支付

    文章目录

    1. 搭建父工程

    建立Maven工程，在pom.xml中引入依赖：

        <repositories>
        <repository>
            <id>springid>
            <url>https://maven.aliyun.com/repository/springurl>
            <releases>
                <enabled>trueenabled>
            releases>
            <snapshots>
                <enabled>trueenabled>
            snapshots>
        repository>
    repositories>


        
        <dependencies>
            
            <dependency>
                <groupId>org.springframework.bootgroupId>
                <artifactId>spring-boot-dependenciesartifactId>
                <version>2.3.2.RELEASEversion>
                <type>pomtype>
                <scope>importscope>
            dependency>
            <dependency>
                <groupId>org.springframework.cloudgroupId>
                <artifactId>spring-cloud-dependenciesartifactId>
                <version>Hoxton.RELEASEversion>
                <type>pomtype>
                <scope>importscope>
            dependency>
            <dependency>
                <groupId>com.alibaba.cloudgroupId>
                <artifactId>spring-cloud-alibaba-dependenciesartifactId>
                <version>2.2.0.RELEASEversion>
                <type>pomtype>
                <scope>importscope>
            dependency>
            <dependency>
                <groupId>mysqlgroupId>
                <artifactId>mysql-connector-javaartifactId>
                <version>8.0.28version>
            dependency>
            <dependency>
                <groupId>com.alibabagroupId>
                <artifactId>druidartifactId>
                <version>1.1.16version>
            dependency>
            <dependency>
                <groupId>org.mybatis.spring.bootgroupId>
                <artifactId>mybatis-spring-boot-starterartifactId>
                <version>1.3.0version>
            dependency>
            <dependency>
                <groupId>junitgroupId>
                <artifactId>junitartifactId>
                <version>4.12version>
                <scope>testscope>
            dependency>
            <dependency>
                <groupId>log4jgroupId>
                <artifactId>log4jartifactId>
                <version>1.2.17version>
            dependency>
            <dependency>
                <groupId>org.projectlombokgroupId>
                <artifactId>lombokartifactId>
                <version>1.18.24version>
            dependency>
        dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.bootgroupId>
                <artifactId>spring-boot-maven-pluginartifactId>
                <configuration>
                    <fork>truefork>
                    <addResources>trueaddResources>
                configuration>
            plugin>
        plugins>
    build>

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    如果采用以下方式进行依赖管理，一定要先注释掉，等Maven下载完jar包之后再加上，不然会爆红。

        <properties>
        <project.build.sourceEncoding>UTF-8project.build.sourceEncoding>
        <maven.compiler.source>1.8maven.compiler.source>
        <maven.compiler.target>1.8maven.compiler.target>
        <junit.version>4.12junit.version>
        <log4j.version>1.2.17log4j.version>
        <lombok.version>1.16.18lombok.version>
        <mysql.version>8.0.18mysql.version>
        <druid.verison>1.1.16druid.verison>
        <mybatis.spring.boot.verison>1.3.0mybatis.spring.boot.verison>
    properties>

<dependencyManagement>
   dependencies>
	   	<dependency>
	        ...
	    dependency>
   dependencies>
dependencyManagement>

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    2. 支付模块构建

    约定 > 配置 > 编码

    **微服务模块 **

    1. 建module
    2. 改pom
    3. 写yml
    4. 主启动
    5. 业务类

    2.1 搭建子模块

    文件架构：
    在这里插入图片描述

    1. 配置子模块pom文件。
    
<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>cloud2020artifactId>
        <groupId>com.atguigu.springcloudgroupId>
        <version>1.0-SNAPSHOTversion>
    parent>
    <modelVersion>4.0.0modelVersion>

    <artifactId>cloud-provider-payment8001artifactId>

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

    <dependencies>
        <dependency>
            <groupId>org.springframework.bootgroupId>
            <artifactId>spring-boot-starter-webartifactId>
        dependency>
        
        <dependency>
            <groupId>org.springframework.bootgroupId>
            <artifactId>spring-boot-starter-actuatorartifactId>
            <version>2.6.3version>
        dependency>
        <dependency>
            <groupId>org.mybatis.spring.bootgroupId>
            <artifactId>mybatis-spring-boot-starterartifactId>
        dependency>
        <dependency>
            <groupId>com.alibabagroupId>
            <artifactId>druid-spring-boot-starterartifactId>
            
        dependency>
        
        <dependency>
            <groupId>mysqlgroupId>
            <artifactId>mysql-connector-javaartifactId>
        dependency>
        
        <dependency>
            <groupId>org.springframework.bootgroupId>
            <artifactId>spring-boot-starter-jdbcartifactId>
        dependency>
        
        <dependency>
            <groupId>org.springframework.bootgroupId>
            <artifactId>spring-boot-devtoolsartifactId>
            <scope>runtimescope>
            <optional>trueoptional>
        dependency>
        <dependency>
            <groupId>org.projectlombokgroupId>
            <artifactId>lombokartifactId>
            <optional>trueoptional>
        dependency>
        <dependency>
            <groupId>org.springframework.bootgroupId>
            <artifactId>spring-boot-starter-testartifactId>
            <scope>testscope>
        dependency>
    dependencies>


project>

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    1. resource包下新建application.yml文件
    server:
  port: 8001
spring:
  application:
    name: cloud-payment-service
  datasource:
    # 当前数据源操作类型
    type: com.alibaba.druid.pool.DruidDataSource
    # mysql驱动类
    driver-class-name: com.mysql.cj.jdbc.Driver
    url: jdbc:mysql://你的服务器ip:3306/你的数据库名称?useUnicode=true&characterEncoding=UTF-8&useSSL=false&serverTimezone=GMT%2B8
    username: 你的数据库用户名
    password: 你的数据库密码
mybatis:
  mapper-locations: classpath*:mapper/*.xml
  type-aliases-package: com.moke.springcloud.entities


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    1. 建立实体类、DAO、Mapper

    实体类：Payment

    /**
 * @author Chen Ruoyi
 * @date 2022/7/21 15:33
 */
@Data
@AllArgsConstructor
@NoArgsConstructor
public class Payment implements Serializable {
    private Long id;
    private String serial;
}


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    与前端的交互类：CommonResult

    /**
 * @author Chen Ruoyi
 * @date 2022/7/21 15:34
 */
@Data
@AllArgsConstructor
@NoArgsConstructor
public class CommonResult <T>{
    private Integer code;
    private String message;
    private T data;

    public CommonResult(Integer code, String message){
        this(code,message,null);
    }
}

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    DAO

    /**
 * @author Chen Ruoyi
 * @date 2022/7/21 15:36
 */
@Mapper
public interface PaymentDao {
    public int create(Payment payment);

    public  Payment getPaymentById(@Param("id") Long id);
}

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    在resources下建立mapper文件夹，建立paymentMapper.xml文件

    
DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">

<mapper namespace="com.cherry.springcloud.dao.PaymentDao">
    <resultMap id="BaseResultMap" type="com.cherry.springcloud.entities.Payment">
        <id column="id" property="id" jdbcType="BIGINT">id>
        <id column="serial" property="serial" jdbcType="VARCHAR">id>
    resultMap>

    <insert id="create" parameterType="Payment" useGeneratedKeys="true" keyProperty="id">
insert into payment(serial) values(#{serial});
    insert>

    <select id="getPaymentById" parameterType="Long" resultMap="BaseResultMap">
        select * from payment where id = #{id};
    select>
mapper>

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    1. 建立Service -> ServiceImpl -> Controller

    Service

    /**
 * @author Chen Ruoyi
 * @date 2022/7/21 15:49
 */
public interface PaymentService {
    public int create(Payment payment);

    public  Payment getPaymentById(@Param("id") Long id);
}

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    ServiceImpl

    /**
 * @author Chen Ruoyi
 * @date 2022/7/21 15:50
 */
@Service
public class PaymentServiceImpl implements PaymentService{
    @Resource
    private PaymentDao paymentDao;


    @Override
    public int create(Payment payment) {
        return paymentDao.create(payment);
    }

    @Override
    public Payment getPaymentById(Long id) {
        return paymentDao.getPaymentById(id);
    }
}

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    Controller

    /**
 * @author Chen Ruoyi
 * @date 2022/7/21 15:53
 */
@RestController
@Slf4j
public class PaymentController {
    @Resource
    private PaymentService paymentService;

    @PostMapping(value = "/payment/create")
    public CommonResult create(Payment payment) {
        int result = paymentService.create(payment);
        log.info("****插入结果：", result);
        if (result > 0) {
            return new CommonResult(200, "插入数据库成功", result);
        } else {
            return new CommonResult(444, "插入数据库失败", result);
        }
    }

    @GetMapping(value = "/payment/get/{id}")
    public CommonResult getPaymentById(@PathVariable("id") Long id) {
        Payment payment = paymentService.getPaymentById(id);
        log.info("****插入结果：", payment);

        if (payment != null) {
            return new CommonResult(200, "查询成功", payment);
        } else {
            return new CommonResult(444, "没有对应记录， 查询id：" + id, null);
        }
    }
}


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    2.2 测试结果

    （此处使用ApiPost6进行接口测试）
    在这里插入图片描述

    在这里插入图片描述

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  • 原文地址：https://blog.csdn.net/CherryChenieth/article/details/125133039