微服务架构工程搭建

- 日理万妓 2022-12-29 04:40 281阅读 0赞

微服务架构工程搭建

  • 1-IDEA 新建 Project 工作空间
  • 2-Rest 微服务工程搭建
    • 2.1-提供者服务 cloud-provider-payment8001
    • 2.2-热部署 Devtools
    • 2.3-消费者服务 cloud-consumer-order80
    • 2.4-微服务工程重构

1-IDEA 新建 Project 工作空间

约定 > 配置 > 编码

a、新建父工程 mscloud
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  1. <groupId>com.atguigu.springcloud</groupId>
  2. <artifactId>mscloud</artifactId>
  3. <version>1.0-SNAPSHOT</version>

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待删除的截图
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  1. <groupId>com.atguigu.springcloud</groupId>
  2. <artifactId>mscloud</artifactId>
  3. <version>1.0-SNAPSHOT</version>

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b、删除父工程 mscloud 中无用的 src 文件夹
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c、修改 IDEA 字符编码，file -> Settings
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d、修改 IDEA File Type 过滤，file -> Settings

  1. *.hprof;*.idea;*.iml;*.pyc;*.pyo;*.rbc;*.yarb;*~;.DS_Store;.git;.hg;.svn;CVS;__pycache__;_svn;vssver.scc;vssver2.scc

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e、修改 IDEA 注解生效激活，file -> Settings
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f、修改 IDEA Java 编译版本，file -> Settings
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g、修改父工程 mscloud 中 pom.xml

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <project xmlns="http://maven.apache.org/POM/4.0.0"
  3.          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  4.          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
  5.     <modelVersion>4.0.0</modelVersion>
  7.     <groupId>com.atguigu.springcloud</groupId>
  8.     <artifactId>cloud2020</artifactId>
  9.     <version>1.0-SNAPSHOT</version>
  10.     <packaging>pom</packaging>
  12.     <!-- 统一管理 jar 包版本 -->
  13.     <properties>
  14.         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
  15.         <maven.compiler.source>1.8</maven.compiler.source>
  16.         <maven.compiler.target>1.8</maven.compiler.target>
  17.         <junit.version>4.12</junit.version>
  18.         <log4j.version>1.2.17</log4j.version>
  19.         <lombok.version>1.18.14</lombok.version>
  20.         <mysql.version>5.1.47</mysql.version>
  21.         <druid.version>1.1.16</druid.version>
  22.         <mybatis.spring.boot.version>1.3.0</mybatis.spring.boot.version>
  23.     </properties>
  25.     <!-- 子模块继承之后作用：锁定版本 + 子模块不用写 groupId 和 version -->
  26.     <dependencyManagement>
  27.         <dependencies>
  28.             <!-- SpringBoot 2.2.2 -->
  29.             <dependency>
  30.                 <groupId>org.springframework.boot</groupId>
  31.                 <artifactId>spring-boot-dependencies</artifactId>
  32.                 <version>2.2.2.RELEASE</version>
  33.                 <type>pom</type>
  34.                 <scope>import</scope>
  35.             </dependency>
  36.             <!-- SpringCloud Hoxton.SR1 -->
  37.             <dependency>
  38.                 <groupId>org.springframework.cloud</groupId>
  39.                 <artifactId>spring-cloud-dependencies</artifactId>
  40.                 <version>Hoxton.SR1</version>
  41.                 <type>pom</type>
  42.                 <scope>import</scope>
  43.             </dependency>
  44.             <!-- SpringCloud Alibaba 2.1.0.RELEASE -->
  45.             <dependency>
  46.                 <groupId>com.alibaba.cloud</groupId>
  47.                 <artifactId>spring-cloud-alibaba-dependencies</artifactId>
  48.                 <version>2.1.0.RELEASE</version>
  49.                 <type>pom</type>
  50.                 <scope>import</scope>
  51.             </dependency>
  52.             <dependency>
  53.                 <groupId>mysql</groupId>
  54.                 <artifactId>mysql-connector-java</artifactId>
  55.                 <version>${mysql.version}</version>
  56.             </dependency>
  57.             <dependency>
  58.                 <groupId>com.alibaba</groupId>
  59.                 <artifactId>druid</artifactId>
  60.                 <version>${druid.version}</version>
  61.             </dependency>
  62.             <dependency>
  63.                 <groupId>org.mybatis.spring.boot</groupId>
  64.                 <artifactId>mybatis-spring-boot-starter</artifactId>
  65.                 <version>${mybatis.spring.boot.version}</version>
  66.             </dependency>
  67.             <dependency>
  68.                 <groupId>junit</groupId>
  69.                 <artifactId>junit</artifactId>
  70.                 <version>${junit.version}</version>
  71.             </dependency>
  72.             <dependency>
  73.                 <groupId>log4j</groupId>
  74.                 <artifactId>log4j</artifactId>
  75.                 <version>${log4j.version}</version>
  76.             </dependency>
  77.             <dependency>
  78.                 <groupId>org.projectlombok</groupId>
  79.                 <artifactId>lombok</artifactId>
  80.                 <version>${lombok.version}</version>
  81.                 <optional>true</optional>
  82.             </dependency>
  83.         </dependencies>
  84.     </dependencyManagement>
  86.     <build>
  87.         <plugins>
  88.             <plugin>
  89.                 <groupId>org.springframework.boot</groupId>
  90.                 <artifactId>spring-boot-maven-plugin</artifactId>
  91.                 <configuration>
  92.                     <fork>true</fork>
  93.                     <addResources>true</addResources>
  94.                 </configuration>
  95.             </plugin>
  96.         </plugins>
  97.     </build>
  98. </project>

h、父工程 mscloud，执行 Maven 命令 mvn clean install
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2-Rest 微服务工程搭建

小总结：

  • 建 module
  • 改 pom
  • 写 yml
  • 主启动类
  • 业务类

2.1-提供者服务 cloud-provider-payment8001

a、右击父工程 mscloud，新建子模块 cloud-provider-payment8001
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b、查看父工程 mscloud 中 pom.xml 变化
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c、修改子模块 cloud-provider-payment8001 中 pom.xml

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <project xmlns="http://maven.apache.org/POM/4.0.0"
  3.          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  4.          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  5.     <modelVersion>4.0.0</modelVersion>
  7.     <parent>
  8.         <artifactId>cloud2020</artifactId>
  9.         <groupId>com.atguigu.springcloud</groupId>
  10.         <version>1.0-SNAPSHOT</version>
  11.     </parent>
  13.     <artifactId>cloud-provider-payment8001</artifactId>
  15.     <dependencies>
  16.         <dependency>
  17.             <groupId>org.springframework.boot</groupId>
  18.             <artifactId>spring-boot-starter-web</artifactId>
  19.         </dependency>
  20.         <dependency>
  21.             <groupId>org.springframework.boot</groupId>
  22.             <artifactId>spring-boot-starter-actuator</artifactId>
  23.         </dependency>
  24.         <dependency>
  25.             <groupId>org.mybatis.spring.boot</groupId>
  26.             <artifactId>mybatis-spring-boot-starter</artifactId>
  27.         </dependency>
  28.         <dependency>
  29.             <groupId>com.alibaba</groupId>
  30.             <artifactId>druid-spring-boot-starter</artifactId>
  31.             <version>1.1.10</version>
  32.         </dependency>
  33.         <dependency>
  34.             <groupId>mysql</groupId>
  35.             <artifactId>mysql-connector-java</artifactId>
  36.         </dependency>
  37.         <dependency>
  38.             <groupId>org.springframework.boot</groupId>
  39.             <artifactId>spring-boot-starter-jdbc</artifactId>
  40.         </dependency>
  41.         <dependency>
  42.             <groupId>org.springframework.boot</groupId>
  43.             <artifactId>spring-boot-devtools</artifactId>
  44.             <scope>runtime</scope>
  45.             <optional>true</optional>
  46.         </dependency>
  47.         <dependency>
  48.             <groupId>org.projectlombok</groupId>
  49.             <artifactId>lombok</artifactId>
  50.             <optional>true</optional>
  51.         </dependency>
  52.         <dependency>
  53.             <groupId>org.springframework.boot</groupId>
  54.             <artifactId>spring-boot-starter-test</artifactId>
  55.             <scope>test</scope>
  56.         </dependency>
  57.     </dependencies>
  58. </project>

d、修改子模块 cloud-provider-payment8001，目录 /src/main/resources 中新建 application.yml

  1. server:
  2.   port: 8001
  4. spring:
  5.   application:
  6.     name: cloud-payment-service
  7.   datasource:
  8.     type: com.alibaba.druid.pool.DruidDataSource
  9.     driver-class-name: org.gjt.mm.mysql.Driver
  10.     url: jdbc:mysql://localhost:3306/db2019?useUnicode=true&characterEncoding=utf-8&useSSL=false
  11.     username: root
  12.     password: 123456
  14. mybatis:
  15.   mapperLocations: classpath:mapper/*.xml
  16.   type-aliases-package: com.atguigu.springcloud.entities

e、修改子模块 cloud-provider-payment8001，目录 /src/main/java 中新建包 com.atguigu.springcloud

f、修改子模块 cloud-provider-payment8001，包 com.atguigu.springcloud 中新建启动类 PaymentMain8001.java

  1. package com.atguigu.springcloud;
  3. import org.springframework.boot.SpringApplication;
  4. import org.springframework.boot.autoconfigure.SpringBootApplication;
  6. @SpringBootApplication
  7. public class PaymentMain8001 {
  8.     public static void main(String[] args) {
  9.         SpringApplication.run(PaymentMain8001.class, args);
  10.     }
  11. }

g、新建 jdbc:mysql://localhost:3306/db2019 数据库

子模块 cloud-provider-payment8001 连接 jdbc:mysql://localhost:3306/db2019 数据库。

  1. DROP DATABASE IF EXISTS db2019;
  2. CREATE DATABASE db2019 CHARACTER SET UTF8;
  4. USE db2019;
  6. CREATE TABLE payment (
  7.     id BIGINT (20) NOT NULL,
  8.     serial VARCHAR (20) DEFAULT NULL,
  9.     PRIMARY KEY (`id`)
  10. ) ENGINE = INNODB DEFAULT CHARSET = utf8;
  12. INSERT INTO payment (id, serial) VALUES ('31', '尚硅谷001');

h、修改子模块 cloud-provider-payment8001，目录 /src/main/java 中新建包 com.atguigu.springcloud.entities

i、修改子模块 cloud-provider-payment8001，包 com.atguigu.springcloud.entities 中新建实体类 Payment.java

  1. package com.atguigu.springcloud.entities;
  3. import lombok.AllArgsConstructor;
  4. import lombok.Data;
  5. import lombok.NoArgsConstructor;
  7. import java.io.Serializable;
  9. @Data
  10. @AllArgsConstructor
  11. @NoArgsConstructor
  12. public class Payment implements Serializable {
  13.     private Long id;
  14.     private String serial;
  15. }

j、修改子模块 cloud-provider-payment8001，包 com.atguigu.springcloud.entities 中新建封装类 CommonResult.java

  1. package com.atguigu.springcloud.entities;
  3. import lombok.AllArgsConstructor;
  4. import lombok.Data;
  5. import lombok.NoArgsConstructor;
  7. @Data
  8. @AllArgsConstructor
  9. @NoArgsConstructor
  10. public class CommonResult<T> {
  11.     private Integer code;
  12.     private String message;
  13.     private T data;
  15.     public CommonResult(Integer code, String message) {
  16.         this(code, message, null);
  17.     }
  18. }

k、修改子模块 cloud-provider-payment8001，目录 /src/main/java 中新建包 com.atguigu.springcloud.dao

l、修改子模块 cloud-provider-payment8001，包 com.atguigu.springcloud.dao 中新建接口 PaymentDao.java

  1. package com.atguigu.springcloud.dao;
  3. import com.atguigu.springcloud.entities.Payment;
  4. import org.apache.ibatis.annotations.Mapper;
  5. import org.apache.ibatis.annotations.Param;
  7. @Mapper
  8. public interface PaymentDao {
  9.     public int create(Payment payment);
  11.     public Payment getPaymentById(@Param("id") Long id);
  12. }

m、修改子模块 cloud-provider-payment8001，目录 /src/main/resources 中新建目录 mapper

n、修改子模块 cloud-provider-payment8001，目录 /src/main/resources/mapper 中新建 PaymentMapper.xml

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
  3. <mapper namespace="com.atguigu.springcloud.dao.PaymentDao">
  4.     <insert id="create" parameterType="Payment" useGeneratedKeys="true" keyProperty="id">
  5.         insert into payment(serial) values (${serial});
  6.     </insert>
  8.     <resultMap id="BaseResultMap" type="com.atguigu.springcloud.entities.Payment">
  9.         <id column="id" property="id" jdbcType="BIGINT"></id>
  10.         <id column="serial" property="serial" jdbcType="VARCHAR"></id>
  11.     </resultMap>
  12.     <select id="getPaymentById" parameterType="Long" resultMap="BaseResultMap">
  13.         select * from payment where id = #{id}
  14.     </select>
  15. </mapper>

o、修改子模块 cloud-provider-payment8001，目录 /src/main/java 中新建包 com.atguigu.springcloud.service

p、修改子模块 cloud-provider-payment8001，包 com.atguigu.springcloud.service 中新建接口 PaymentService.java

  1. package com.atguigu.springcloud.service;
  3. import com.atguigu.springcloud.entities.Payment;
  4. import org.apache.ibatis.annotations.Param;
  6. public interface PaymentService {
  8.     public int create(Payment payment);// 写
  10.     public Payment getPaymentById(@Param("id") Long id);// 读
  11. }

q、修改子模块 cloud-provider-payment8001，目录 /src/main/java 中新建包 com.atguigu.springcloud.service.impl

r、修改子模块 cloud-provider-payment8001，包 com.atguigu.springcloud.service.impl 中新建接口实现类 PaymentServiceImpl.java

  1. package com.atguigu.springcloud.service.impl;
  3. import com.atguigu.springcloud.dao.PaymentDao;
  4. import com.atguigu.springcloud.entities.Payment;
  5. import com.atguigu.springcloud.service.PaymentService;
  6. import org.springframework.stereotype.Service;
  8. import javax.annotation.Resource;
  10. @Service
  11. public class PaymentServiceImpl implements PaymentService {
  12.     @Resource
  13.     private PaymentDao paymentDao;
  15.     public int create(Payment payment) {
  16.         return paymentDao.create(payment);
  17.     }
  19.     public Payment getPaymentById(Long id) {
  20.         return paymentDao.getPaymentById(id);
  21.     }
  22. }

s、修改子模块 cloud-provider-payment8001，目录 /src/main/java 中新建包 com.atguigu.springcloud.controller

t、修改子模块 cloud-provider-payment8001，包 com.atguigu.springcloud.controller 中新建 PaymentController.java

  1. package com.atguigu.springcloud.controller;
  3. import com.atguigu.springcloud.entities.CommonResult;
  4. import com.atguigu.springcloud.entities.Payment;
  5. import com.atguigu.springcloud.service.PaymentService;
  6. import lombok.extern.slf4j.Slf4j;
  7. import org.springframework.web.bind.annotation.GetMapping;
  8. import org.springframework.web.bind.annotation.PathVariable;
  9. import org.springframework.web.bind.annotation.PostMapping;
  10. import org.springframework.web.bind.annotation.RestController;
  12. import javax.annotation.Resource;
  14. @RestController
  15. @Slf4j
  16. public class PaymentController {
  17.     @Resource
  18.     private PaymentService paymentService;
  20.     @PostMapping(value = "/payment/create")
  21.     public CommonResult create(Payment payment) {
  22.         int result = paymentService.create(payment);
  23.         log.info("*****插入结果：" + result);
  24.         if (result > 0) {  //成功
  25.             return new CommonResult(200, "插入数据库成功", result);
  26.         } else {
  27.             return new CommonResult(444, "插入数据库失败", null);
  28.         }
  29.     }
  31.     @GetMapping(value = "/payment/get/{id}")
  32.     public CommonResult getPaymentById(@PathVariable("id") Long id) {
  33.         Payment payment = paymentService.getPaymentById(id);
  34.         log.info("*****查询结果：" + payment);
  35.         if (payment != null) {  //说明有数据，能查询成功
  36.             return new CommonResult(200, "查询成功", payment);
  37.         } else {
  38.             return new CommonResult(444, "没有对应记录，查询ID：" + id, null);
  39.         }
  40.     }
  41. }

u、测试子模块 cloud-provider-payment8001

  • 启动子模块 cloud-provider-payment8001
  • http://localhost:8001/payment/get/31
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2.2-热部署 Devtools

a、修改子模块 cloud-provider-payment8001 中 pom.xml
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  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <project xmlns="http://maven.apache.org/POM/4.0.0"
  3.          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  4.          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  5.     <modelVersion>4.0.0</modelVersion>
  7.     <parent>
  8.         <artifactId>cloud2020</artifactId>
  9.         <groupId>com.atguigu.springcloud</groupId>
  10.         <version>1.0-SNAPSHOT</version>
  11.     </parent>
  13.     <artifactId>cloud-provider-payment8001</artifactId>
  15.     <dependencies>
  16.         <dependency>
  17.             <groupId>org.springframework.boot</groupId>
  18.             <artifactId>spring-boot-starter-web</artifactId>
  19.         </dependency>
  20.         <dependency>
  21.             <groupId>org.springframework.boot</groupId>
  22.             <artifactId>spring-boot-starter-actuator</artifactId>
  23.         </dependency>
  24.         <dependency>
  25.             <groupId>org.mybatis.spring.boot</groupId>
  26.             <artifactId>mybatis-spring-boot-starter</artifactId>
  27.         </dependency>
  28.         <dependency>
  29.             <groupId>com.alibaba</groupId>
  30.             <artifactId>druid-spring-boot-starter</artifactId>
  31.             <version>1.1.10</version>
  32.         </dependency>
  33.         <dependency>
  34.             <groupId>mysql</groupId>
  35.             <artifactId>mysql-connector-java</artifactId>
  36.         </dependency>
  37.         <dependency>
  38.             <groupId>org.springframework.boot</groupId>
  39.             <artifactId>spring-boot-starter-jdbc</artifactId>
  40.         </dependency>
  41.         <dependency>
  42.             <groupId>org.springframework.boot</groupId>
  43.             <artifactId>spring-boot-devtools</artifactId>
  44.             <scope>runtime</scope>
  45.             <optional>true</optional>
  46.         </dependency>
  47.         <dependency>
  48.             <groupId>org.projectlombok</groupId>
  49.             <artifactId>lombok</artifactId>
  50.             <optional>true</optional>
  51.         </dependency>
  52.         <dependency>
  53.             <groupId>org.springframework.boot</groupId>
  54.             <artifactId>spring-boot-starter-test</artifactId>
  55.             <scope>test</scope>
  56.         </dependency>
  57.         <dependency>
  58.             <groupId>org.springframework.boot</groupId>
  59.             <artifactId>spring-boot-devtools</artifactId>
  60.             <scope>runtime</scope>
  61.             <optional>true</optional>
  62.         </dependency>
  63.     </dependencies>
  64. </project>

b、修改父工程 mscloud 中 pom.xml
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  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <project xmlns="http://maven.apache.org/POM/4.0.0"
  3.          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  4.          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  5.     <modelVersion>4.0.0</modelVersion>
  7.     <groupId>com.atguigu.springcloud</groupId>
  8.     <artifactId>cloud2020</artifactId>
  9.     <version>1.0-SNAPSHOT</version>
  10.     <modules>
  11.         <module>cloud-provider-payment8001</module>
  12.     </modules>
  13.     <packaging>pom</packaging>
  15.     <!-- 统一管理 jar 包版本 -->
  16.     <properties>
  17.         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
  18.         <maven.compiler.source>1.8</maven.compiler.source>
  19.         <maven.compiler.target>1.8</maven.compiler.target>
  20.         <junit.version>4.12</junit.version>
  21.         <log4j.version>1.2.17</log4j.version>
  22.         <lombok.version>1.18.14</lombok.version>
  23.         <mysql.version>5.1.47</mysql.version>
  24.         <druid.version>1.1.16</druid.version>
  25.         <mybatis.spring.boot.version>1.3.0</mybatis.spring.boot.version>
  26.     </properties>
  28.     <!-- 子模块继承之后作用：锁定版本 + 子模块不用写 groupId 和 version -->
  29.     <dependencyManagement>
  30.         <dependencies>
  31.             <!-- SpringBoot 2.2.2 -->
  32.             <dependency>
  33.                 <groupId>org.springframework.boot</groupId>
  34.                 <artifactId>spring-boot-dependencies</artifactId>
  35.                 <version>2.2.2.RELEASE</version>
  36.                 <type>pom</type>
  37.                 <scope>import</scope>
  38.             </dependency>
  39.             <!-- SpringCloud Hoxton.SR1 -->
  40.             <dependency>
  41.                 <groupId>org.springframework.cloud</groupId>
  42.                 <artifactId>spring-cloud-dependencies</artifactId>
  43.                 <version>Hoxton.SR1</version>
  44.                 <type>pom</type>
  45.                 <scope>import</scope>
  46.             </dependency>
  47.             <!-- SpringCloud Alibaba 2.1.0.RELEASE -->
  48.             <dependency>
  49.                 <groupId>com.alibaba.cloud</groupId>
  50.                 <artifactId>spring-cloud-alibaba-dependencies</artifactId>
  51.                 <version>2.1.0.RELEASE</version>
  52.                 <type>pom</type>
  53.                 <scope>import</scope>
  54.             </dependency>
  55.             <dependency>
  56.                 <groupId>mysql</groupId>
  57.                 <artifactId>mysql-connector-java</artifactId>
  58.                 <version>${mysql.version}</version>
  59.             </dependency>
  60.             <dependency>
  61.                 <groupId>com.alibaba</groupId>
  62.                 <artifactId>druid</artifactId>
  63.                 <version>${druid.version}</version>
  64.             </dependency>
  65.             <dependency>
  66.                 <groupId>org.mybatis.spring.boot</groupId>
  67.                 <artifactId>mybatis-spring-boot-starter</artifactId>
  68.                 <version>${mybatis.spring.boot.version}</version>
  69.             </dependency>
  70.             <dependency>
  71.                 <groupId>junit</groupId>
  72.                 <artifactId>junit</artifactId>
  73.                 <version>${junit.version}</version>
  74.             </dependency>
  75.             <dependency>
  76.                 <groupId>log4j</groupId>
  77.                 <artifactId>log4j</artifactId>
  78.                 <version>${log4j.version}</version>
  79.             </dependency>
  80.             <dependency>
  81.                 <groupId>org.projectlombok</groupId>
  82.                 <artifactId>lombok</artifactId>
  83.                 <version>${lombok.version}</version>
  84.                 <optional>true</optional>
  85.             </dependency>
  86.         </dependencies>
  87.     </dependencyManagement>
  89.     <build>
  90.         <plugins>
  91.             <plugin>
  92.                 <groupId>org.springframework.boot</groupId>
  93.                 <artifactId>spring-boot-maven-plugin</artifactId>
  94.                 <configuration>
  95.                     <fork>true</fork>
  96.                     <addResources>true</addResources>
  97.                 </configuration>
  98.             </plugin>
  99.         </plugins>
  100.     </build>
  101. </project>

c、IDEA 开启自动构建
在这里插入图片描述
d、IDEA 快捷键 Alt + Shift + Ctrl + /
在这里插入图片描述
在这里插入图片描述
e、IDEA 重启

2.3-消费者服务 cloud-consumer-order80

a、右击父工程 mscloud，新建子模块 cloud-consumer-order80
在这里插入图片描述
b、修改子模块 cloud-consumer-order80 中 pom.xml

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <project xmlns="http://maven.apache.org/POM/4.0.0"
  3.          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  4.          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  5.     <modelVersion>4.0.0</modelVersion>
  6.     <parent>
  7.         <artifactId>cloud2020</artifactId>
  8.         <groupId>com.atguigu.springcloud</groupId>
  9.         <version>1.0-SNAPSHOT</version>
  10.     </parent>
  12.     <artifactId>cloud-consumer-order80</artifactId>
  14.     <dependencies>
  15.         <dependency>
  16.             <groupId>org.springframework.boot</groupId>
  17.             <artifactId>spring-boot-starter-web</artifactId>
  18.         </dependency>
  19.         <dependency>
  20.             <groupId>org.springframework.boot</groupId>
  21.             <artifactId>spring-boot-starter-actuator</artifactId>
  22.         </dependency>
  23.         <dependency>
  24.             <groupId>org.springframework.boot</groupId>
  25.             <artifactId>spring-boot-devtools</artifactId>
  26.             <scope>runtime</scope>
  27.             <optional>true</optional>
  28.         </dependency>
  29.         <dependency>
  30.             <groupId>org.projectlombok</groupId>
  31.             <artifactId>lombok</artifactId>
  32.             <optional>true</optional>
  33.         </dependency>
  34.         <dependency>
  35.             <groupId>org.springframework.boot</groupId>
  36.             <artifactId>spring-boot-starter-test</artifactId>
  37.             <scope>test</scope>
  38.         </dependency>
  39.     </dependencies>
  40. </project>

c、修改子模块 cloud-consumer-order80，目录 /src/main/resources 中新建 application.yml

  1. server:
  2.   port: 80

d、修改子模块 cloud-consumer-order80，目录 /src/main/java 中新建包 com.atguigu.springcloud

e、修改子模块 cloud-consumer-order80，包 com.atguigu.springcloud 中新建启动类 OrderMain80.java

  1. package com.atguigu.springcloud;
  3. import org.springframework.boot.SpringApplication;
  4. import org.springframework.boot.autoconfigure.SpringBootApplication;
  6. @SpringBootApplication
  7. public class OrderMain80 {
  8.     public static void main(String[] args) {
  9.         SpringApplication.run(OrderMain80.class, args);
  10.     }
  11. }

f、修改子模块 cloud-consumer-order80，目录 /src/main/java 中新建包 com.atguigu.springcloud.entities

g、复制子模块 cloud-provider-payment8001 中包 com.atguigu.springcloud.entities 内容到子模块 cloud-consumer-order80 包 com.atguigu.springcloud.entities

h、修改子模块 cloud-consumer-order80，目录 /src/main/java 中新建包 com.atguigu.springcloud.config

i、修改子模块 cloud-consumer-order80，包 com.atguigu.springcloud.config 中新建 ApplicationContextConfig.java

  1. package com.atguigu.springcloud.config;
  3. import org.springframework.context.annotation.Bean;
  4. import org.springframework.context.annotation.Configuration;
  5. import org.springframework.web.client.RestTemplate;
  7. @Configuration
  8. public class ApplicationContextConfig {
  9.     @Bean
  10.     public RestTemplate getRestTemplate() {
  11.         return new RestTemplate();
  12.     }
  13. }

RestTemplate 是什么？

RestTemplate 提供了多种便捷访问远程 Http 服务的方法，是一种简单便捷的访问 Restful 服务模板类，是 Spring 提供的用于访问 Rest 服务的客户端模板工具集。

RestTemplate 官网及使用

  • 官网：https://docs.spring.io/spring-framework/docs/4.3.7.RELEASE/javadoc-api/org/springframework/web/client/RestTemplate.html
  • 使用：使用 RestTemplate 访问 Restful 接口非常的简单粗暴无脑(url, requestMap, ResponseBean.class)，这三个参数分别代表 Rest 请求地址、请求参数、Http 响应转换被转换成的对象类型。

j、修改子模块 cloud-consumer-order80，目录 /src/main/java 中新建包 com.atguigu.springcloud.controller

k、修改子模块 cloud-consumer-order80，包 com.atguigu.springcloud.controller 中新建 OrderController.java

  1. package com.atguigu.springcloud.controller;
  3. import com.atguigu.springcloud.entities.CommonResult;
  4. import com.atguigu.springcloud.entities.Payment;
  5. import lombok.extern.slf4j.Slf4j;
  6. import org.springframework.web.bind.annotation.GetMapping;
  7. import org.springframework.web.bind.annotation.PathVariable;
  8. import org.springframework.web.bind.annotation.RestController;
  9. import org.springframework.web.client.RestTemplate;
  11. import javax.annotation.Resource;
  13. @RestController
  14. @Slf4j
  15. public class OrderController {
  16.     public static final String PAYMENT_URL = "http://localhost:8001";
  18.     @Resource
  19.     private RestTemplate restTemplate;
  21.     @GetMapping("/consumer/payment/create")
  22.     public CommonResult<Payment> create(Payment payment) {
  23.         return restTemplate.postForObject(PAYMENT_URL + "/payment/create", payment, CommonResult.class);// 写
  24.     }
  26.     @GetMapping("/consumer/payment/get/{id}")
  27.     public CommonResult<Payment> getPayment(@PathVariable("id") Long id) {
  28.         return restTemplate.getForObject(PAYMENT_URL + "/payment/get/" + id, CommonResult.class);
  29.     }
  30. }

l、测试子模块 cloud-consumer-order80

  • 启动子模块 cloud-provider-payment8001
  • 启动子模块 cloud-consumer-order80
  • http://localhost/consumer/payment/get/31
    在这里插入图片描述

2.4-微服务工程重构

系统中有重复代码，需要重构
在这里插入图片描述
a、右击父工程 mscloud，新建子模块 cloud-api-commons
在这里插入图片描述
b、修改子模块 cloud-api-commons 中 pom.xml

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <project xmlns="http://maven.apache.org/POM/4.0.0"
  3.          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  4.          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  5.     <modelVersion>4.0.0</modelVersion>
  7.     <parent>
  8.         <artifactId>cloud2020</artifactId>
  9.         <groupId>com.atguigu.springcloud</groupId>
  10.         <version>1.0-SNAPSHOT</version>
  11.     </parent>
  13.     <artifactId>cloud-api-commons</artifactId>
  15.     <dependencies>
  16.         <dependency>
  17.             <groupId>org.springframework.boot</groupId>
  18.             <artifactId>spring-boot-devtools</artifactId>
  19.             <scope>runtime</scope>
  20.             <optional>true</optional>
  21.         </dependency>
  22.         <dependency>
  23.             <groupId>org.projectlombok</groupId>
  24.             <artifactId>lombok</artifactId>
  25.             <optional>true</optional>
  26.         </dependency>
  27.         <dependency>
  28.             <groupId>cn.hutool</groupId>
  29.             <artifactId>hutool-all</artifactId>
  30.             <version>5.1.0</version>
  31.         </dependency>
  32.     </dependencies>
  33. </project>

c、修改子模块 cloud-api-commons，目录 /src/main/java 中新建包 com.atguigu.springcloud.entities**

d、复制子模块 cloud-consumer-order80 中包 com.atguigu.springcloud.entities 内容到子模块 cloud-api-commons 包 com.atguigu.springcloud.entities

e、父工程 mscloud，执行 Maven 命令 mvn clean install
在这里插入图片描述
f、删除子模块 cloud-consumer-order80、cloud-provider-payment8001 中包 com.atguigu.springcloud.entities

g、修改子模块 cloud-consumer-order80 中 pom.xml
在这里插入图片描述

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <project xmlns="http://maven.apache.org/POM/4.0.0"
  3.          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  4.          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  5.     <modelVersion>4.0.0</modelVersion>
  6.     <parent>
  7.         <artifactId>cloud2020</artifactId>
  8.         <groupId>com.atguigu.springcloud</groupId>
  9.         <version>1.0-SNAPSHOT</version>
  10.     </parent>
  12.     <artifactId>cloud-consumer-order80</artifactId>
  14.     <dependencies>
  15.         <dependency>
  16.             <groupId>com.atguigu.springcloud</groupId>
  17.             <artifactId>cloud-api-commons</artifactId>
  18.             <version>${project.version}</version>
  19.         </dependency>
  20.         <dependency>
  21.             <groupId>org.springframework.boot</groupId>
  22.             <artifactId>spring-boot-starter-web</artifactId>
  23.         </dependency>
  24.         <dependency>
  25.             <groupId>org.springframework.boot</groupId>
  26.             <artifactId>spring-boot-starter-actuator</artifactId>
  27.         </dependency>
  28.         <dependency>
  29.             <groupId>org.springframework.boot</groupId>
  30.             <artifactId>spring-boot-devtools</artifactId>
  31.             <scope>runtime</scope>
  32.             <optional>true</optional>
  33.         </dependency>
  34.         <dependency>
  35.             <groupId>org.projectlombok</groupId>
  36.             <artifactId>lombok</artifactId>
  37.             <optional>true</optional>
  38.         </dependency>
  39.         <dependency>
  40.             <groupId>org.springframework.boot</groupId>
  41.             <artifactId>spring-boot-starter-test</artifactId>
  42.             <scope>test</scope>
  43.         </dependency>
  44.     </dependencies>
  45. </project>

h、修改子模块 cloud-provider-payment8001 中 pom.xml
在这里插入图片描述

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <project xmlns="http://maven.apache.org/POM/4.0.0"
  3.          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  4.          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  5.     <modelVersion>4.0.0</modelVersion>
  7.     <parent>
  8.         <artifactId>cloud2020</artifactId>
  9.         <groupId>com.atguigu.springcloud</groupId>
  10.         <version>1.0-SNAPSHOT</version>
  11.     </parent>
  13.     <artifactId>cloud-provider-payment8001</artifactId>
  15.     <dependencies>
  16.         <dependency>
  17.             <groupId>com.atguigu.springcloud</groupId>
  18.             <artifactId>cloud-api-commons</artifactId>
  19.             <version>${project.version}</version>
  20.         </dependency>
  21.         <dependency>
  22.             <groupId>org.springframework.boot</groupId>
  23.             <artifactId>spring-boot-starter-web</artifactId>
  24.         </dependency>
  25.         <dependency>
  26.             <groupId>org.springframework.boot</groupId>
  27.             <artifactId>spring-boot-starter-actuator</artifactId>
  28.         </dependency>
  29.         <dependency>
  30.             <groupId>org.mybatis.spring.boot</groupId>
  31.             <artifactId>mybatis-spring-boot-starter</artifactId>
  32.         </dependency>
  33.         <dependency>
  34.             <groupId>com.alibaba</groupId>
  35.             <artifactId>druid-spring-boot-starter</artifactId>
  36.             <version>1.1.10</version>
  37.         </dependency>
  38.         <dependency>
  39.             <groupId>mysql</groupId>
  40.             <artifactId>mysql-connector-java</artifactId>
  41.         </dependency>
  42.         <dependency>
  43.             <groupId>org.springframework.boot</groupId>
  44.             <artifactId>spring-boot-starter-jdbc</artifactId>
  45.         </dependency>
  46.         <dependency>
  47.             <groupId>org.springframework.boot</groupId>
  48.             <artifactId>spring-boot-devtools</artifactId>
  49.             <scope>runtime</scope>
  50.             <optional>true</optional>
  51.         </dependency>
  52.         <dependency>
  53.             <groupId>org.projectlombok</groupId>
  54.             <artifactId>lombok</artifactId>
  55.             <optional>true</optional>
  56.         </dependency>
  57.         <dependency>
  58.             <groupId>org.springframework.boot</groupId>
  59.             <artifactId>spring-boot-starter-test</artifactId>
  60.             <scope>test</scope>
  61.         </dependency>
  62.         <dependency>
  63.             <groupId>org.springframework.boot</groupId>
  64.             <artifactId>spring-boot-devtools</artifactId>
  65.             <scope>runtime</scope>
  66.             <optional>true</optional>
  67.         </dependency>
  68.     </dependencies>
  69. </project>

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