springcloud openfeign 中文乱码 springcloud中文社区

文章目录

• 1、Spring Cloud 版本选择
• 2、Spring Cloud 停更组件说明
• 3、Spring Cloud 升级
• 4、Spring Cloud 父工程构建

• 4.1、父工程构建
• 4.2、父工程 pom
• 4.3、Maven 工程落地细节复习

• 5、Rest 微服务工程构建

• 5.1、构建步骤
• 5.2、新建 cloud-api-commons 公共模块

• 5.2.1、pom
• 5.2.2、entity
• 5.2.3、result 返回统一数据格式
• 5.2.4、maven 命令打包发布
• 5.2.5、创建完成后，回到父工程查看 pom 文件变化

• 5.3、建立 cloud-provider-payment8001 模块

• 5.3.1、创建完成后，回到父工程查看 pom 文件变化
• 5.3.2、更改 pom 文件
• 5.3.3、写 YML
• 5.3.4、主启动类（新建）
• 5.3.5、业务类
• 5.3.6、测试

• 5.4、建立 cloud-consumer-order80 模块

• 5.4.1、创建完成后，回到父工程查看 pom 文件变化
• 5.4.2、更改 pom 文件
• 5.4.3、写 YML
• 5.4.4、主启动类（新建）
• 5.4.5、业务类（RestTemplate）
• 5.4.6、测试

1、Spring Cloud 版本选择

官网：https://spring.io/projects/spring-cloud

选择版本：https://start.spring.io/actuator/info 查看 Json 串返回结果。

• cloud

• Hoxton.SR9

• boot

• 2.3.5.RELEASE

• cloud alibaba

• 2.2.1.RELEASE

• jdk

• 1.8

• MySQL

• 8.0.x

• Maven

• 3.6.x

2、Spring Cloud 停更组件说明

3、Spring Cloud 升级

4、Spring Cloud 父工程构建

4.1、父工程构建

2. New Project



4. 聚合总父工程名字



6. Maven 版本



8. 工程测试



10. 字符编码



12. 注解生效激活



14. Java 编译版本选择 1.8



16. File Type 过滤

4.2、父工程 pom

<?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>

    <!-- 基本信息: 这里作为聚合工程的父工程 -->
    <groupId>com.springcloud-demo</groupId>
    <artifactId>springcloud-parent</artifactId>
    <version>1.0-SNAPSHOT</version>

    <!-- 多模块项目中, 父模块打包类型必须是 pom  -->
    <packaging>pom</packaging>

    <!-- 模块说明：这里声明多个子模块 -->
    <modules>
        <!-- <module>...</module> -->
    </modules>

    <!-- 版本号 -->
    <properties>
        <java.version>1.8</java.version>
        <maven.compiler.source>1.8</maven.compiler.source>
        <maven.compiler.target>1.8</maven.compiler.target>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <!-- 其他模块 -->
        <lombok.version>1.18.16</lombok.version>
        <junit.version>4.13.1</junit.version>
        <mysql.version>8.0.22</mysql.version>
        <druid.version>1.2.2</druid.version>
        <log4j.version>1.2.17</log4j.version>
        <hutool.version>5.3.10</hutool.version>
        <swagger.version>3.0.0</swagger.version>
        <mybatis-plus.version>3.4.1</mybatis-plus.version>
    </properties>

    <!-- 版本说明: 这里统一管理依赖的版本号 -->
    <dependencyManagement>
        <dependencies>
            <!-- spring-cloud-dependencies -->
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>Hoxton.SR9</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <!-- spring-boot-dependencies -->
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-dependencies</artifactId>
                <version>2.3.5.RELEASE</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <!-- spring-cloud-alibaba-dependencies -->
            <dependency>
                <groupId>com.alibaba.cloud</groupId>
                <artifactId>spring-cloud-alibaba-dependencies</artifactId>
                <version>2.2.1.RELEASE</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>

            <!-- 其他模块 -->
            <!-- Lombok -->
            <dependency>
                <groupId>org.projectlombok</groupId>
                <artifactId>lombok</artifactId>
                <version>${lombok.version}</version>
            </dependency>
            <!-- junit -->
            <dependency>
                <groupId>junit</groupId>
                <artifactId>junit</artifactId>
                <version>${junit.version}</version>
            </dependency>
            <!-- MySQL 数据库驱动 -->
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
                <version>${mysql.version}</version>
            </dependency>
            <!-- druid 数据源 -->
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>druid</artifactId>
                <version>${druid.version}</version>
            </dependency>
            <!-- log4j: druid 要用这个 -->
            <dependency>
                <groupId>log4j</groupId>
                <artifactId>log4j</artifactId>
                <version>${log4j.version}</version>
            </dependency>
            <!-- Hutool 工具包 -->
            <dependency>
                <groupId>cn.hutool</groupId>
                <artifactId>hutool-all</artifactId>
                <version>${hutool.version}</version>
            </dependency>
            <!-- Swagger -->
            <dependency>
                <groupId>io.springfox</groupId>
                <artifactId>springfox-boot-starter</artifactId>
                <version>${swagger.version}</version>
            </dependency>
            <!-- MyBatis-Plus -->
            <dependency>
                <groupId>com.baomidou</groupId>
                <artifactId>mybatis-plus-boot-starter</artifactId>
                <version>${mybatis-plus.version}</version>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <build>
        <finalName>cloud-demo</finalName>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <version>2.3.4.RELEASE</version>
                <configuration>
                    <fork>true</fork>
                    <addResources>true</addResources>
                </configuration>
            </plugin>
        </plugins>
    </build>

</project>

4.3、Maven 工程落地细节复习

1. Maven 中的 dependencyManagement 和 dependencies
3. Maven 中跳过单元测试



4. 父工程创建完成执行 mvn:install 将父工程发布到仓库方便子工程继承

5、Rest 微服务工程构建

5.1、构建步骤

1. 建 module
2. 改 POM
3. 写 YML
4. 主启动
5. 业务类

5.2、新建 cloud-api-commons 公共模块

5.2.1、pom

<?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>springcloud-parent</artifactId>
        <groupId>com.springcloud-demo</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>cloud-api-commons</artifactId>

    <dependencies>
        <!-- lombok -->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        <!-- Hutool 工具包 -->
        <dependency>
            <groupId>cn.hutool</groupId>
            <artifactId>hutool-all</artifactId>
        </dependency>
        <!-- 热部署 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <scope>runtime</scope>
            <optional>true</optional>
        </dependency>
    </dependencies>
</project>

5.2.2、entity

@Data
@AllArgsConstructor
@NoArgsConstructor
public class Payment implements Serializable {

    private Long id;
    private String serial;
}

5.2.3、result 返回统一数据格式

5.2.4、maven 命令打包发布

- clean
- install

5.2.5、创建完成后，回到父工程查看 pom 文件变化

<!-- 模块说明：这里声明多个子模块 -->
<modules>
	<!-- 新加入的模块 -->
    <module>cloud-api-commons</module>
</modules>

5.3、建立 cloud-provider-payment8001 模块

5.3.1、创建完成后，回到父工程查看 pom 文件变化

<!-- 模块说明：这里声明多个子模块 -->
<modules>
	<!-- 新加入的模块 -->
    <module>cloud-provider-payment8001</module>
    <module>cloud-api-commons</module>
</modules>

5.3.2、更改 pom 文件

<?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>springcloud-parent</artifactId>
        <groupId>com.springcloud-demo</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>cloud-provider-payment8001</artifactId>

    <dependencies>
        <!-- 引入自己定义的 api 通用包 -->
        <dependency>
            <groupId>com.springcloud-demo</groupId>
            <artifactId>cloud-api-commons</artifactId>
            <version>${project.version}</version>
        </dependency>

        <!-- web -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <!-- 监控 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>
        <!-- 单元测试 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>

        <!-- MyBatis-Plus -->
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-boot-starter</artifactId>
        </dependency>
        <!-- MySQL 数据库驱动 -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>
        <!-- druid 数据源 -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
        </dependency>
        <!-- log4j: druid 要用这个 -->
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
        </dependency>
        <!-- lombok -->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>

        <!-- 热部署 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <scope>runtime</scope>
            <optional>true</optional>
        </dependency>

    </dependencies>

</project>

5.3.3、写 YML

1. application-database.yml

spring:
  datasource: # 数据源
    driver-class-name: com.mysql.cj.jdbc.Driver
    username: root
    password: root
    url: jdbc:mysql://localhost:3306/demo?useUnicode=true&characterEncoding=utf-8&serverTimezone=UTC # &serverTimezone=UTC 解决时区报错
    type: com.alibaba.druid.pool.DruidDataSource # 自定义数据源
    # Spring Boot 默认是不注入这些属性值的，需要自己绑定
    # druid 数据源专有配置
    initialSize: 5
    minIdle: 5
    maxActive: 20
    maxWait: 60000
    timeBetweenEvictionRunsMillis: 60000
    minEvictableIdleTimeMillis: 300000
    validationQuery: SELECT 1 FROM DUAL # 验证连接
    testWhileIdle: true
    testOnBorrow: false
    testOnReturn: false
    poolPreparedStatements: true
    # 配置监控统计拦截的filters
    #   stat:监控统计、
    #   log4j：日志记录、
    #   wall：防御 sql 注入
    # 如果允许时报错 java.lang.ClassNotFoundException:org.apache.log4j.Priority
    # 则导入 log4j 依赖即可，Maven 地址：https://mvnrepository.com/artifact/log4j/log4j
    filters: stat,wall,log4j
    maxPoolPreparedStatementPerConnectionSize: 20
    useGlobalDataSourceStat: true
    connectionProperties: druid.stat.mergeSql=true;druid.stat.slowSqlMillis=500

2. application-mybatis-plus.yml

mybatis-plus:
  # 指定 MyBatis 的核心配置文件与 Mapper 映射文件
  mapper-locations: classpath:mappers/*.xml
  # 对应实体类的路径
  type-aliases-package: com.demo.entity
  # MyBatis 驼峰命名规则自动转换
  configuration:
    log-impl: org.apache.ibatis.logging.stdout.StdOutImpl
    map-underscore-to-camel-case: true

3. application.yml

server:
  port: 8001

spring:
  application:
    name: cloud-payment-service
  profiles:
    include: database, mybatis-plus

5.3.4、主启动类（新建）

@SpringBootApplication
public class PaymentMain8001 {

    public static void main(String[] args) {
        SpringApplication.run(PaymentMain8001.class);
    }
}

5.3.5、业务类

2. 建表



3. mapper

@Mapper
public interface PaymentMapper extends BaseMapper<Payment> {

}

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.demo.mapper.PaymentMapper">

</mapper>

3. service

public interface PaymentService extends IService<Payment> {

}

@Service
public class PaymentServiceImpl extends ServiceImpl<PaymentMapper, Payment> implements PaymentService {

}

4. controller

@Slf4j
@RestController
public class PaymentController {

    @Autowired
    private PaymentService paymentService;

    @GetMapping("/listPayment")
    public ResultBody listPayment() {
        return ResultTool.success(paymentService.list());
    }

}

5.3.6、测试

postman 模拟 get

5.4、建立 cloud-consumer-order80 模块

5.4.1、创建完成后，回到父工程查看 pom 文件变化

<!-- 模块说明：这里声明多个子模块 -->
 <modules>
     <module>cloud-provider-payment8001</module>
     <!-- 新加入的模块 -->
     <module>cloud-consumer-order80</module>
     <module>cloud-api-commons</module>
 </modules>

5.4.2、更改 pom 文件

<?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>springcloud-parent</artifactId>
        <groupId>com.springcloud-demo</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>cloud-consumer-order80</artifactId>

    <dependencies>
        <!-- 引入自己定义的 api 通用包 -->
        <dependency>
            <groupId>com.springcloud-demo</groupId>
            <artifactId>cloud-api-commons</artifactId>
            <version>${project.version}</version>
        </dependency>

        <!-- web -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <!-- 监控 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>
        <!-- 单元测试 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>

        <!-- lombok -->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        <!-- 热部署 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <scope>runtime</scope>
            <optional>true</optional>
        </dependency>
    </dependencies>

</project>

5.4.3、写 YML

server:
  port: 80
spring:
  application:
    name: cloud-payment-order

5.4.4、主启动类（新建）

@SpringBootApplication
public class OrderMain {

    public static void main(String[] args) {
        SpringApplication.run(OrderMain.class);
    }
}

5.4.5、业务类（RestTemplate）

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 的服务模板类，是 Spring 提供的用户访问 Rest 服务的客户端模板工具集。

config 配置类：ApplicationContextConfig

@Configuration
public class ApplicationContextConfig {

    @Bean
    public RestTemplate getRestTemplate() {
        return new RestTemplate();
    }
}

controller：注意加上 http://

@Slf4j
@RestController
public class OrderController {

    @Resource
    private RestTemplate restTemplate;

    @GetMapping("/consumer/listPayment")
    public ResultBody listPayment() {
        return restTemplate.getForObject("http://localhost:8001" + "/listPayment", ResultBody.class);
    }
}

5.4.6、测试

postman 模拟 get