【SpringCloud】【Hoxton】基础环境准备

素颜马尾好姑娘i 2023-07-12 11:43 4阅读 0赞

[01 基础环境准备][01]  
[02 一文读懂Eureka][02 _Eureka]  
[03 Zookeeper注册中心][03 Zookeeper]  
[04 Consule注册中心][04 Consule]  
[05 Ribbon][]  
[06 OpenFegin][]  
[07 Hystrix全面解析][07 Hystrix]  
[08 Gateway全面解析][08 Gateway]  
[09 Config配置中心][09 Config]  
[10 Bus消息总线][10 Bus]

# 1 引言 #

记2020年3月8日 SpringCloud 最新版为Hoxton SR3。

# 2 创建父工程 #

(1) spring-cloud  
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(2) pom文件

<properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <maven.compiler.source>1.8</maven.compiler.source>
        <maven.compiler.target>1.8</maven.compiler.target>
        <junit.version>4.12</junit.version>
        <hutool.version>5.1.0</hutool.version>
        <commons.version>3.4</commons.version>
        <javax.version>2.1.0</javax.version>
        <log4j.version>1.2.17</log4j.version>
        <lombok.version>1.18.6</lombok.version>
        <mysql.version>8.0.11</mysql.version>
        <druid.verison>1.1.16</druid.verison>
        <mybatis.spring.boot.verison>1.3.1</mybatis.spring.boot.verison>
        <tk.mybatis.verison>2.1.5</tk.mybatis.verison>
        <pagehelper.verison>1.2.10</pagehelper.verison>
        <spring-cloud.version>Hoxton.SR3</spring-cloud.version>
        <spring-boot.version>2.2.5.RELEASE</spring-boot.version>
        <spring-cloud-alibaba.version>2.1.0.RELEASE</spring-cloud-alibaba.version>
    </properties>
    <dependencyManagement>
        <dependencies>
            
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-dependencies</artifactId>
                <version>${ spring-boot.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            
            <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>
            
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
                <version>${ mysql.version}</version>
            </dependency>
            
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>druid-spring-boot-starter</artifactId>
                <version>${ druid.verison}</version>
            </dependency>
            
            <dependency>
                <groupId>org.projectlombok</groupId>
                <artifactId>lombok</artifactId>
                <version>${ lombok.version}</version>
            </dependency>
            
            <dependency>
                <groupId>junit</groupId>
                <artifactId>junit</artifactId>
                <version>${ junit.version}</version>
            </dependency>
            
            <dependency>
                <groupId>log4j</groupId>
                <artifactId>log4j</artifactId>
                <version>${ log4j.version}</version>
            </dependency>
            
            <dependency>
                <groupId>org.mybatis.spring.boot</groupId>
                <artifactId>mybatis-spring-boot-starter</artifactId>
                <version>${ mybatis.spring.boot.verison}</version>
            </dependency>
            <dependency>
                <groupId>tk.mybatis</groupId>
                <artifactId>mapper-spring-boot-starter</artifactId>
                <version>${ tk.mybatis.verison}</version>
            </dependency>
            <dependency>
                <groupId>com.github.pagehelper</groupId>
                <artifactId>pagehelper-spring-boot-starter</artifactId>
                <version>${ pagehelper.verison}</version>
            </dependency>
            
            <dependency>
                <groupId>org.apache.commons</groupId>
                <artifactId>commons-lang3</artifactId>
                <version>${ commons.version}</version>
            </dependency>
            <dependency>
                <groupId>org.eclipse.persistence</groupId>
                <artifactId>javax.persistence</artifactId>
                <version>${ javax.version}</version>
            </dependency>
            
            <dependency>
                <groupId>cn.hutool</groupId>
                <artifactId>hutool-all</artifactId>
                <version>${ hutool.version}</version>
            </dependency>
        </dependencies>
    </dependencyManagement>
    
    
    
    <build>
        <finalName>springcloud-hoxton</finalName>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <fork>true</fork>
                    <addResources>true</addResources>
                </configuration>
            </plugin>
            <plugin>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                </configuration>
            </plugin>
        </plugins>
    </build>

(3) 安装  
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# 3 场景模拟 #

模拟【订单微服务】调用 【支付微服务】  
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## 3.1 创建微服务provider-payment ##

(1) provider-payment  
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SQL建表脚本：

CREATE TABLE `t_payment` (
      `n_id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT '主键',
      `c_serial` varchar(200) CHARACTER SET utf8 COLLATE utf8_general_ci DEFAULT NULL COMMENT '流水号',
      `c_name` varchar(255) DEFAULT NULL COMMENT '支付名',
      `n_money` decimal(10,2) DEFAULT NULL COMMENT '支付金额',
      PRIMARY KEY (`n_id`) USING BTREE
    ) ENGINE=InnoDB AUTO_INCREMENT=3 DEFAULT CHARSET=utf8;

(2) pom

<dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
        </dependency>
        <dependency>
            <groupId>tk.mybatis</groupId>
            <artifactId>mapper-spring-boot-starter</artifactId>
        </dependency>
        <dependency>
            <groupId>com.github.pagehelper</groupId>
            <artifactId>pagehelper-spring-boot-starter</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid-spring-boot-starter</artifactId>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-jdbc</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <scope>runtime</scope>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-lang3</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
        </dependency>
    </dependencies>

(3) application.yml

server:
      port: 9000
    spring:
      application:
        name: provider-payment-service
      datasource:
        url:  jdbc:mysql://localhost:3306/springcloud?useUnicode=true&characterEncoding=UTF-8&autoReconnect=true&useSSL=false&serverTimezone=UTC
        username: root
        password: 123456
        driver-class-name: com.mysql.jdbc.Driver
        type: com.alibaba.druid.pool.DruidDataSource

(4) consts

@AllArgsConstructor
    @NoArgsConstructor
    @Data
    public class ResponseResultConsts { 
        private Integer code;
        private String msg;
        private Object data;
        /** * 响应成功 */
        public static ResponseResultConsts success(Object data,String msg){ 
            return new ResponseResultConsts(200, msg,data);
        }
        /** * 响应失败 */
        public static ResponseResultConsts fail(Integer code,String msg){ 
            return new ResponseResultConsts(code, msg,null);
        }
    }

(5) po

@Data
    @AllArgsConstructor
    @NoArgsConstructor
    @Table(name = "t_payment")
    public class PaymentPo { 
        /** * id */
        @Id
        @Column(name = "n_id")
        @GeneratedValue(strategy=GenerationType.IDENTITY)
        private Integer id;
        /** * 流水号 */
        @Column(name = "c_serial")
        private String serial;
        /** * 支付名 */
        @Column(name = "c_name")
        private String name;
        /** * 金额 */
        @Column(name = "n_money")
        private float money;
    }

(6) Mapper

@Mapper
    public interface PaymentMapper extends BaseMapper<PaymentPo> { 
    }

(7) Service

@Service
    public class PaymentService { 
        @Autowired
        private PaymentMapper paymentMapper;
        public PaymentPo selectById(String id){ 
            return paymentMapper.selectByPrimaryKey(id);
        }
        @Transactional
        public PaymentPo insert(PaymentPo payment){ 
            paymentMapper.insertSelective(payment);
            return payment;
        }
    }

(8) Controller

@RestController
    @RequestMapping("/payment")
    public class PaymentController { 
        @Autowired
        private PaymentService paymentService;
        /** * 根据ID查 */
        @GetMapping("/{id}")
        public ResponseResultConsts selectPayment(@PathVariable("id") String id){ 
            PaymentPo paymentPo = paymentService.selectById(id);
            if (paymentPo==null){ 
                return ResponseResultConsts.fail(500,"查询失败");
            }
            return ResponseResultConsts.success(paymentPo,"查询成功");
        }
        /** * 根据流水号添加 */
        @PostMapping("/payment")
        public ResponseResultConsts insertPayment(@RequestBody PaymentPo payment){ 
            PaymentPo paymentPo = paymentService.insert(payment);
            if (paymentPo==null){ 
                return ResponseResultConsts.fail(500,"插入失败");
            }
            return ResponseResultConsts.success(paymentPo,"添加成功");
        }
    }

(9) 启动类

@SpringBootApplication
    @MapperScan("com.payment.mapper")
    public class PaymentApplication { 
        public static void main(String[] args) { 
            SpringApplication.run(PaymentApplication.class);
        }
    }

(10) 测试

{ 
        "serial": "82181a8a-5d8b40ca96e2ebcca730837c",
        "name": "postman",
        "money": "18.81"
    }

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# 5 建立customer-order工程 #

## 5.1 pom ##

## 5.2 application.yml ##

server:
      port: 8000

## 5.3 ResponseResultConsts ##

## 5.4 po ##

@Data
    @AllArgsConstructor
    @NoArgsConstructor
    @Table(name = "t_payment")
    public class PaymentPo { 
        /** * id */
        @Id
        @Column(name = "n_id")
        @GeneratedValue(strategy= GenerationType.IDENTITY)
        private Integer id;
        /** * 流水号 */
        @Column(name = "c_serial")
        private String serial;
        /** * 支付名 */
        @Column(name = "c_name")
        private String name;
        /** * 金额 */
        @Column(name = "n_money")
        private float money;
    }

## 5.5 RestTemplate ##

(1) 作用  
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  
(2) 使用  
使用 resttemplate访 restful接口非常的简单粗暴无脑。(ur, requestmap, ResponseBean. class)这三个参数分别代表REST请求地址、请求参数、HTP响应转换被转换成的时象类型。  
(3) 建立配置文件

@Configuration
    public class ApplicationConfig { 
        @Bean
        public RestTemplate restTemplate(){ 
            return new RestTemplate();
        }
    }

## 5.6 Controller ##

@RestController
    @RequestMapping("/order")
    public class OrderController { 
        @Autowired
        private RestTemplate restTemplate;
        private static final String BASE_PAYMENT_URL="http://localhost:9000/";
        @GetMapping("/{id}")
        public ResponseResultConsts selectPayment(@PathVariable("id") String id){ 
            ResponseEntity<ResponseResultConsts> forEntity =
                    restTemplate.getForEntity(BASE_PAYMENT_URL+id, ResponseResultConsts.class, id);
            return  forEntity.getBody();
        }
        @PostMapping("/payment")
        public ResponseResultConsts insertPayment(@RequestBody PaymentPo payment){ 
            ResponseEntity<ResponseResultConsts> response = restTemplate.postForEntity(BASE_PAYMENT_URL + "payment", payment, ResponseResultConsts.class);
            return response.getBody();
        }
    }

## 5.7 测试 ##

(1) 启动provider-payment服务和customer-order服务  
(2) 测试  
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# 6 重构 #

## 6.1 创建common工程 ##

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## 6.2 pom ##

<dependencies>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
        </dependency>
        <dependency>
            <groupId>cn.hutool</groupId>
            <artifactId>hutool-all</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <scope>runtime</scope>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.eclipse.persistence</groupId>
            <artifactId>javax.persistence</artifactId>
        </dependency>
    </dependencies>

## 6.3 把po和consts提取出来 ##

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## 6.4 安装commons ##

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## 6.5 修改provider-payment ##

(1) 添加坐标

<dependency>
        <groupId>com.zrs.springcloud</groupId>
        <artifactId>commons</artifactId>
        <version>1.0-SNAPSHOT</version>
    </dependency>

(2) 删除相关包  
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(3) 修改controller、service、mapper文件

(4) 修改后启动程序  
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## 6.6 同理修改customer-order微服务 ##

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# 7 github地址 #

#分支base-environment-release-v1.0
    https://github.com/zhurongsheng666/spring-cloud-hoxton

[01]: https://blog.csdn.net/qq_34125999/article/details/104732409
[02 _Eureka]: https://blog.csdn.net/qq_34125999/article/details/104744751
[03 Zookeeper]: https://blog.csdn.net/qq_34125999/article/details/104788216
[04 Consule]: https://blog.csdn.net/qq_34125999/article/details/104809738
[05 Ribbon]: https://blog.csdn.net/qq_34125999/article/details/104859515
[06 OpenFegin]: https://blog.csdn.net/qq_34125999/article/details/104865809
[07 Hystrix]: https://blog.csdn.net/qq_34125999/article/details/104872389
[08 Gateway]: https://blog.csdn.net/qq_34125999/article/details/104878977
[09 Config]: https://blog.csdn.net/qq_34125999/article/details/104887587
[10 Bus]: https://blog.csdn.net/qq_34125999/article/details/104890652
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