1_项目搭建

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发布于 2022-09-12 21:15:46

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发布于 2022-09-12 21:15:46

文章被收录于专栏：全栈程序员必看全栈程序员必看

大家好，又见面了，我是你们的朋友全栈君。

数据库

父工程

1、建 Module：supergo_parent

2、改 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>
    <groupId>com.supergo</groupId>
    <artifactId>supergo_parent</artifactId>
    <version>1.0-SNAPSHOT</version>
    
    <!--声明为父项目-->
    <packaging>pom</packaging>
    
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.1.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <!--管理子工程: 1，锁定坐标版本 2，管理子工程(统一打包，部署) -->
    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
        <spring-cloud.version>Finchley.RC1</spring-cloud.version>
        <mybatis.starter.version>1.3.2</mybatis.starter.version>
        <mapper.starter.version>2.0.2</mapper.starter.version>
        <druid.starter.version>1.1.10</druid.starter.version>
        <mysql.version>5.1.32</mysql.version>
        <pageHelper.starter.version>1.2.3</pageHelper.starter.version>
        <fastDFS.client.version>1.27.0.0</fastDFS.client.version>
        <jaxb.version>2.3.0</jaxb.version>
        <activation>1.1.1</activation>
        <springfox>2.2.2</springfox>
        <lambok>1.16.20</lambok>
        <fastjson>1.2.9</fastjson>
        <json-token>0.9.0</json-token>
        <joda-time>2.9.7</joda-time>
        <comment-lang>3.9</comment-lang>
        <aliyun-dayu-core>3.3.1</aliyun-dayu-core>
        <aliyun-dayu-sdk>1.0.0</aliyun-dayu-sdk>
        <swagger-boot>1.9.0.RELEASE</swagger-boot>
        <wxpay.version>0.0.3</wxpay.version>
        <lcn.last.version>4.1.0</lcn.last.version>
        <httpclient.version>4.5.3</httpclient.version>
        <codingapi.txlcn.version>5.0.2.RELEASE</codingapi.txlcn.version>
    </properties>
    
    <!--管理坐标-->
    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>net.oschina.zcx7878</groupId>
                <artifactId>fastdfs-client-java</artifactId>
                <version>${fastDFS.client.version}</version>
            </dependency>
            <dependency>
                <groupId>com.aliyun</groupId>
                <artifactId>aliyun-java-sdk-core</artifactId>
                <version>${aliyun-dayu-core}</version>
            </dependency>
            <dependency>
                <groupId>com.aliyun</groupId>
                <artifactId>aliyun-java-sdk-dysmsapi</artifactId>
                <version>${aliyun-dayu-sdk}</version>
            </dependency>
            <dependency>
                <groupId>io.jsonwebtoken</groupId>
                <artifactId>jjwt</artifactId>
                <version>${json-token}</version>
            </dependency>
            <dependency>
                <groupId>joda-time</groupId>
                <artifactId>joda-time</artifactId>
                <version>${joda-time}</version>
            </dependency>
            <dependency>
                <groupId>org.apache.commons</groupId>
                <artifactId>commons-lang3</artifactId>
                <version>${comment-lang}</version>
            </dependency>

            <!-- springCloud -->
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>${spring-cloud.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>

            <!-- mybatis启动器 -->
            <dependency>
                <groupId>org.mybatis.spring.boot</groupId>
                <artifactId>mybatis-spring-boot-starter</artifactId>
                <version>${mybatis.starter.version}</version>
            </dependency>

            <!-- 通用Mapper启动器 -->
            <dependency>
                <groupId>tk.mybatis</groupId>
                <artifactId>mapper-spring-boot-starter</artifactId>
                <version>${mapper.starter.version}</version>
            </dependency>

            <dependency>
                <groupId>com.github.pagehelper</groupId>
                <artifactId>pagehelper-spring-boot-starter</artifactId>
                <version>${pageHelper.starter.version}</version>
            </dependency>

            <!-- druid启动器 -->
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>druid-spring-boot-starter</artifactId>
                <version>${druid.starter.version}</version>
            </dependency>
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
                <version>${mysql.version}</version>
            </dependency>
            <dependency>
                <groupId>javax.xml.bind</groupId>
                <artifactId>jaxb-api</artifactId>
                <version>${jaxb.version}</version>
            </dependency>
            <dependency>
                <groupId>com.sun.xml.bind</groupId>
                <artifactId>jaxb-core</artifactId>
                <version>${jaxb.version}</version>
            </dependency>
            <dependency>
                <groupId>com.sun.xml.bind</groupId>
                <artifactId>jaxb-impl</artifactId>
                <version>${jaxb.version}</version>
            </dependency>
            <dependency>
                <groupId>javax.activation</groupId>
                <artifactId>activation</artifactId>
                <version>${activation}</version>
            </dependency>
            <dependency>
                <groupId>io.springfox</groupId>
                <artifactId>springfox-swagger2</artifactId>
                <version>${springfox}</version>
            </dependency>
            <dependency>
                <groupId>io.springfox</groupId>
                <artifactId>springfox-swagger-ui</artifactId>
                <version>${springfox}</version>
            </dependency>
            <dependency>
                <groupId>org.projectlombok</groupId>
                <artifactId>lombok</artifactId>
                <version>${lambok}</version>
                <scope>provided</scope>
            </dependency>
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>fastjson</artifactId>
                <version>${fastjson}</version>
            </dependency>

            <!--微信支付-->
            <dependency>
                <groupId>com.github.wxpay</groupId>
                <artifactId>wxpay-sdk</artifactId>
                <version>${wxpay.version}</version>
            </dependency>

            <!--httpclient-->
            <dependency>
                <groupId>org.apache.httpcomponents</groupId>
                <artifactId>httpclient</artifactId>
                <version>${httpclient.version}</version>
            </dependency>

        </dependencies>
    </dependencyManagement>

    <repositories>
        <repository>
            <id>spring-milestones</id>
            <name>Spring Milestones</name>
            <url>https://repo.spring.io/milestone</url>
            <snapshots>
                <enabled>false</enabled>
            </snapshots>
        </repository>
    </repositories>
</project>

3、删除 src目录

搭建 Eureka 注册中心

1、建 Module ：supergo_eureka7001

2、改 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>supergo_parent</artifactId>
        <groupId>com.supergo</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>supergo_eureka10086</artifactId>

    <!--注册中心: 服务端-->
    <dependencies>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
        </dependency>
    </dependencies>

</project>

3、建 yml

# 端口
server:
  port: 7001
eureka:
  instance:
    # 单机版【hostname: 127.0.0.1 # Eureka 服务端的实例名称】
    # 集群
    hostname: eureka7001.com
  client:
    register-with-eureka: false # 表示不向注册中心注册自己
    fetch-registry: false # 表示自己端就是注册中心，我的职责就是维护服务实例，并不需要去检索服务
    service-url:
      # 设置与eureka server 交互的地址查询和注册服务都需要依赖这个地址】
      # 单机版【defaultZone: http://${eureka.instance.hostname}:${server.port}/eureka/
      defaultZone: http://${ 
   eureka.instance.hostname}:${ 
   server.port}/eureka/
      # 集群：需要去守望另外一台注册中心
      # defaultZone: http://eureka7002.com:7002/eureka/
  # 注册中心的自我保护机制【默认是开启的】
  server:
    enable-self-preservation: false # 关闭自我保护机制，保证不可用的服务及时删除
    eviction-interval-timer-in-ms: 2000 # 改变时间间隔[失效服务剔除]

4、启动类

package com.xj0927;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;

@SpringBootApplication
@EnableEurekaServer  //发现 Eureka
public class Eureka7001 { 
   
    public static void main(String[] args) { 
   
        SpringApplication.run(Eureka7001.class, args);
    }
}

添加基础模块

这些基础模块是可重用的，不仅是本项目，其它项目也可使用

涉及到的基础模块：

supergo-common
supergo-mapper
supergo-pojo
supergo-base-service

supergo-common

该模块主要是工具类和通用类，基类等

比如：

package com.supergo.http;

import java.io.Serializable;

/** * HTTP结果封装:如果请求处理正常就调用ok方法，如果有数据返回就将数据封装返回； 如果请求出错，就调用error方法，返回出错状态码+信息 */
public class HttpResult implements Serializable{ 
   

	private int code = 200;
	private String msg;
	private Object data;
	
	public static HttpResult error() { 
   
		return error(HttpStatus.SC_INTERNAL_SERVER_ERROR, "未知异常，请联系管理员");
	}
	
	public static HttpResult error(String msg) { 
   
		return error(HttpStatus.SC_INTERNAL_SERVER_ERROR, msg);
	}
	
	public static HttpResult error(int code, String msg) { 
   
		HttpResult r = new HttpResult();
		r.setCode(code);
		r.setMsg(msg);
		return r;
	}

	public static HttpResult ok(String msg) { 
   
		HttpResult r = new HttpResult();
		r.setMsg(msg);
		return r;
	}
	
	public static HttpResult ok(Object data) { 
   
		HttpResult r = new HttpResult();
		r.setData(data);
		return r;
	}
	
	public static HttpResult ok() { 
   
		return new HttpResult();
	}

	.....
	
}

分页请求实体类：

package com.supergo.page;

import java.io.Serializable;

/** * @Description: 封装分页的请求参数 * @Author: xj0927 * @Date Created in 2020/12/23 12:56 */
public class PageRequest implements Serializable{ 
   

    private Integer currentPage=1;
    private Integer pageSize=10;
	....
}

分页结果实体类：

package com.supergo.page;

import java.io.Serializable;
import java.util.List;

/** * @Description: 封装分页的结果 * @Author: xj0927 * @Date Created in 2020/12/23 12:56 */
public class PageResult implements Serializable { 
   

    private Long total;

    private int page=1;

    private List<?> rows;

    private int pageSize=10;

    public PageResult() { 
   
    }

    public PageResult(Long total, List<?> rows) { 
   
        this.total = total;
        this.rows = rows;
    }

    public PageResult(Long total, List<?> rows,int page) { 
   
        this.total = total;
        this.rows = rows;
        this.page = page;
    }

   ......
}

全部工具类：

spergo-mapper

存放生成的 Mapper 接口和映射文件，而实体类抽取出来放在另一个模块 supergo-pojo 中，然后引入到该模块中使用

本项目使用的是 tk-mybatis，如何使用插件反向生成接口、实体类和映射文件，可参照：https://blog.csdn.net/XJ0927/article/details/111590559

贴一下该模块使用到的 pom 依赖：

<?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>supergo_parent</artifactId>
        <groupId>com.supergo</groupId>
        <version>1.0-SNAPSHOT</version>
        <relativePath>../pom.xml</relativePath>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>supergo-mapper</artifactId>

    <dependencies>
        <!--引入pojo：主要是实体类-->
        <dependency>
            <groupId>com.supergo</groupId>
            <artifactId>supergo-pojo</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>

        <!--数据库相关东西-->
        <dependency>
            <groupId>com.github.pagehelper</groupId>
            <artifactId>pagehelper-spring-boot-starter</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-jdbc</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.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
        </dependency>
        <dependency>
            <groupId>tk.mybatis</groupId>
            <artifactId>mapper-spring-boot-starter</artifactId>
            <version>2.0.2</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>

    </dependencies>

    <!--tk-mybatis 反向生成所需要的的插件-->
    <build>
        <plugins>
            <plugin>
                <groupId>org.mybatis.generator</groupId>
                <artifactId>mybatis-generator-maven-plugin</artifactId>
                <version>1.3.7</version>
                <configuration>
                    <verbose>true</verbose>
                    <overwrite>true</overwrite>
                </configuration>
                <dependencies>
                    <dependency>
                        <groupId>tk.mybatis</groupId>
                        <artifactId>mapper</artifactId>
                        <version>4.1.5</version>
                    </dependency>
                    <dependency>
                        <groupId>mysql</groupId>
                        <artifactId>mysql-connector-java</artifactId>
                        <version>8.0.19</version>
                    </dependency>
                    <dependency>
                        <groupId>com.github.misterchangray.mybatis.generator.plugins</groupId>
                        <artifactId>myBatisGeneratorPlugins</artifactId>
                        <version>1.2</version>
                    </dependency>
                </dependencies>
            </plugin>
        </plugins>
    </build>

</project>

supergo-pojo

用于存放实体类

supergo-base-service

存放 service 层的接口和实现类的通用基类，通过它我们具体的 service 就不用了在写 crud 操作了，类比 mybatis plus 中的 Service 和 ServiceImpl 这两个类

引入 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>supergo_parent</artifactId>
        <groupId>com.supergo</groupId>
        <version>1.0-SNAPSHOT</version>
        <relativePath>../pom.xml</relativePath>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>supergo-base-service</artifactId>

    <dependencies>
        <!--存放的映射文件和接口，因为该模块引入了实体模块，所以也间接引入了实体类-->
        <dependency>
            <groupId>com.supergo</groupId>
            <artifactId>supergo-mapper</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
        <dependency>
            <groupId>com.supergo</groupId>
            <artifactId>supergo-common</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
    </dependencies>
</project>

接口规范

package com.supergo.service.base;

import com.supergo.page.PageResult;
import com.supergo.http.HttpResult;
import java.io.Serializable;
import java.util.List;

/** * 功能描述：增删改查通用service */
public interface BaseService<T> { 
   

    /** * 根据主键查询 * * @param id 主键 * @return 实体对象 */
    public T findOne(Serializable id);

    /** * 查询全部 * * @return 实体对象集合 */
    public HttpResult findAll();

    /** * 根据条件查询列表 * * @param t 查询条件对象 * @return */
    public List<T> findByWhere(T t);

    /** * 分页查询列表 * * @param page 页号 * @param rows 页大小 * @return 分页实体对象 */
   public PageResult findPage(Integer page, Integer rows);

    /** * 根据条件分页查询列表 * * @param page 页号 * @param rows 页大小 * @param t 查询条件对象 * @return 分页实体对象 */
   public PageResult findPage(Integer page, Integer rows, T t);

    /** * 新增 * * @param t 实体对象 */
    public void add(T t);

    /** * 根据主键更新 * * @param t 实体对象 */
    public void update(T t);

    /** * 批量删除 * * @param ids 主键集合 */
    public void deleteByIds(Serializable[] ids);

}

实现类

package com.supergo.service.base.impl;

import java.io.Serializable;
import java.util.List;

import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import com.supergo.service.base.BaseService;
import com.supergo.page.PageResult;
import com.supergo.http.HttpResult;
import org.springframework.beans.factory.annotation.Autowired;
import tk.mybatis.mapper.common.Mapper;

/** * 功能描述：增删改查通用service实现类 */
public abstract class BaseServiceImpl<T> implements BaseService<T> { 
   

    //spring 4.x 版本之后引入的泛型依赖注入
    //通过该mapper,传入泛型,作用类似于xxxMapper
    @Autowired
    private Mapper<T> mapper;

    @Override
    public T findOne(Serializable id) { 
   
        return mapper.selectByPrimaryKey(id);
    }

    @Override
    public HttpResult findAll() { 
   
        return HttpResult.ok(mapper.selectAll());
    }

    @Override
    public List<T> findByWhere(T t) { 
   
        return mapper.select(t);
    }

   @Override
    public PageResult findPage(Integer page, Integer rows) { 
   
        PageHelper.startPage(page, rows);
        List<T> list = mapper.selectAll();
        PageInfo<T> pageInfo = new PageInfo<>(list);
        return new PageResult(pageInfo.getTotal(),
                pageInfo.getList(),page);
    }

  //分页方法:使用的是PageHelper进行分页
  //可以增加限制条件进行分页
  @Override
    public PageResult findPage(Integer page, Integer rows, T t) { 
   
        PageHelper.startPage(page, rows);
        List<T> list = mapper.select(t);
        PageInfo<T> pageInfo = new PageInfo<>(list);
        return new PageResult(pageInfo.getTotal(),
                pageInfo.getList(),page);
    }

    @Override
    public void add(T t) { 
   
        mapper.insertSelective(t);
    }

    @Override
    public void update(T t) { 
   
        mapper.updateByPrimaryKeySelective(t);
    }

    @Override
    public void deleteByIds(Serializable[] ids) { 
   
        if (ids != null && ids.length > 0) { 
   
            for (Serializable id : ids) { 
   
                mapper.deleteByPrimaryKey(id);
            }
        }
    }
}

搭建品牌微服务提供者

这里加了一层 feign 进行调用：

supergo_manager_service8001：包含我们的实际业务逻辑
supergo_manager_feign：客户端 Feign 调用的接口定义

supergo_manager 父模块

1、建父 Module：supergo_manager

2、改 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>supergo_parent</artifactId>
        <groupId>com.supergo</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>supergo_manager</artifactId>

    <!--声明为父项目-->
    <packaging>pom</packaging>
    <!--子模块-->
    <modules>
        <module>supergo_manager_service8001</module>
        <module>supergo_manager_feign</module>
    </modules>

</project>

supergo_manager_service8001 业务模块

实现品牌、商品等管理的微服务工程

1、建 Module：supergo_manager_service8001

2、改 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>supergo_manager</artifactId>
        <groupId>com.supergo</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>supergo_manager_service</artifactId>
    <dependencies>
        <!--web 与 actuator监控-->
        <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>

        <!--hystrix 熔断器-->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-hystrix</artifactId>
        </dependency>

        <!--eureka 客户端-->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
        </dependency>

        <!--公用service模块-->
        <dependency>
            <groupId>com.supergo</groupId>
            <artifactId>supergo-base-service</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>

        <!--公用 mapper模块-->
        <dependency>
            <groupId>com.supergo</groupId>
            <artifactId>supergo-mapper</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>

    </dependencies>
    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>
</project>

3、建 yml

# 端口
server:
  port: 8001

# 名字
spring:
  application:
    name: supergo-manager # 代表的就是我以什么样的名字入驻进的注册中心
  datasource:
    type: com.alibaba.druid.pool.DruidDataSource # 当前数据源操作类型
    driver-class-name: com.mysql.jdbc.Driver # mysql驱动类
    url: jdbc:mysql://127.0.0.1:3306/supergo?useUnicode=true&characterEncoding=utf8&autoReconnect=true&allowMultiQueries=true
    username: root
    password: 123456

    # druid 专属配置
    druid:
      initial-size: 5
      min-idle: 5
      max-active: 20
      max-wait: 1000
      time-between-eviction-runs-millis: 60000
      min-evictable-idle-time-millis: 300000
      validation-query: select 'x'
      test-while-idle: true
      test-on-borrow: false
      test-on-return: false
      pool-prepared-statements: true
      max-open-prepared-statements: 50
      max-pool-prepared-statement-per-connection-size: 20

      # stat是统计，wall是SQL防火墙，防SQL注入的，log4j是用来输出统计数据的
# filters: stat,wall,log4j,config
      ##是否启用StatFilter默认值true: 排除一些不必要的url
      web-stat-filter:
        enabled: true
        exclusions: '*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*'
      #是否启用StatViewServlet默认值true
      stat-view-servlet:
        allow: 127.0.0.1 #IP 白名单
        url-pattern: /druid/* #监控地址,默认 /druid/*
        login-username: admin
        login-password: admin #
  # deny:IP #黑名单

  # 最大请求文件的大小
  servlet:
    multipart:
      max-request-size: 5MB


mybatis:
  type-aliases-package: com.supergo.pojo #所有别名类所在的包

eureka:
  client:
    register-with-eureka: true # 表示将自己注册到 eureka server ，默认为 true
    fetch-registry: true # 表示是否从eureka server 抓取已有的注册信息，默认为true。单节点为所谓，集群必须为 true,才能配合ribbon使用负载均衡
    service-url:
      # 单机版：只用注册进一个服务中心【defaultZone: http://127.0.0.1:7001/eureka/】
      defaultZone: http://eureka7001.com:7001/eureka/
      # 集群版：需要同时注册进每个注册中心
  # defaultZone: http://eureka7001.com:7001/eureka/,http://eureka7002.com/eureka/
  # 显示的服务主机名称
  instance:
    prefer-ip-address: true # 访问路径显示 ip【统一：方便调试】
    ip-address: 127.0.0.1
    instance-id: ${ 
   eureka.instance.ip-address}.${ 
   server.port}
    lease-renewal-interval-in-seconds: 3
    lease-expiration-duration-in-seconds: 10
    #网关设置了根路径，默认监控路径发生了变化
    health-check-url-path: /api/actuator/health

#actuator服务监控与管理
management:
  endpoint:
    #开启端点
    shutdown:
      enabled: true
    health:
      show-details: always
  # 加载所有的端点
  endpoints:
    web:
      exposure:
        include: "*"

4、启动类

package com.supergo;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
import tk.mybatis.spring.annotation.MapperScan;

@SpringBootApplication
@EnableEurekaClient //注册进注册中心
@MapperScan("com.supergo.mapper") //扫描引入的公用即接口包
public class ManagerService8001 { 
   
    public static void main(String[] args) { 
   
        SpringApplication.run(ManagerService8001.class, args);
    }
}

5、service 层

接口：

package com.supergo.service;

import com.supergo.pojo.Brand;
import com.supergo.service.base.BaseService;

/** * @Author: xj0927 * @Description: * @Date Created in 2020-12-23 18:40 * @Modified By: */
public interface BrandService extends BaseService<Brand> { 
   
}

实现类：

package com.supergo.service.imp;

import com.supergo.pojo.Brand;
import com.supergo.service.base.impl.BaseServiceImpl;

import com.supergo.service.BrandService;
import org.springframework.stereotype.Service;


/** * @Author: xj0927 * @Description: * @Date Created in 2020-12-23 18:41 * @Modified By: */
@Service
public class BrandServiceImpl extends BaseServiceImpl<Brand> implements BrandService { 
   

}

6、controller 层

package com.supergo.controller;

import com.supergo.pojo.Brand;
import com.supergo.http.HttpResult;
import com.supergo.page.PageResult;
import com.supergo.service.BrandService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

/** * @Author: xj0927 * @Description: * @Date Created in 2020-12-23 19:25 * @Modified By: */
@RestController
@RequestMapping("/brand")
public class BrandController { 
   

    @Autowired
    private BrandService brandService;

    //分页查询
    @PostMapping("/query/{page}/{rows}")
    public HttpResult findPage(@RequestBody Brand brand, @PathVariable Integer page, @PathVariable Integer rows) { 
   
        try { 
   
            PageResult result = brandService.findPage(page, rows, brand);
            //查询成功
            return HttpResult.ok(result);
        } catch (Exception e) { 
   
            e.printStackTrace();
            //查询异常
            return HttpResult.error();
        }
    }
}

7、测试

使用 postman 测试

至此，表示服务提供者提供的服务没有问题

supergo_manager_feign调用模块

1、建 Moduel：supergo_manager_feign

2、改 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>supergo_manager</artifactId>
        <groupId>com.supergo</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>supergo_manager_feign</artifactId>

    <dependencies>
        <!--服务调用openfeign-->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-openfeign</artifactId>
        </dependency>
        <!--工具类-->
        <dependency>
            <groupId>com.supergo</groupId>
            <artifactId>supergo-common</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
        <!--实体类-->
        <dependency>
            <groupId>com.supergo</groupId>
            <artifactId>supergo-pojo</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
    </dependencies>

</project>

3、调用接口

package com.supergo;

import com.supergo.pojo.Brand;
import com.supergo.http.HttpResult;
import org.springframework.cloud.openfeign.FeignClient;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;

/** * @Author: xj0927 * @Description: * @Date Created in 2020-12-23 21:24 * @Modified By: */
@FeignClient(value = "supergo-manager")//发现服务提供者
public interface ApiBrandFeign { 
   
    //分页查询
    @PostMapping("/brand/query/{page}/{rows}")
    public HttpResult findPage(@RequestBody Brand brand, @PathVariable Integer page, @PathVariable Integer rows);
}

4、使用

其他模块，需要使用该服务时，便可以通过该接口进行服务调用

搭建品牌微服务调用者

1、建 Module：supergo_manager_web9001

2、改 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>supergo_parent</artifactId>
        <groupId>com.supergo</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>supergo_manager_web9002</artifactId>
    <dependencies>
        <!--eureka 客户端依赖-->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <!--监控依赖-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>

        <!--hystrix熔断依赖-->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-hystrix</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>

        <!--在feign模块使用了tk-mybatis进行数据库的访问， 这里引入feign，会间接引入tk-mybatis 需要排除tk-mybatis，不然会要求进行数据库配置 -->
        <dependency>
            <groupId>com.supergo</groupId>
            <artifactId>supergo_manager_feign</artifactId>
            <exclusions>
                <exclusion>
                    <groupId>tk.mybatis</groupId>
                    <artifactId>mapper-spring-boot-starter</artifactId>
                </exclusion>
            </exclusions>
            <version>1.0-SNAPSHOT</version>
        </dependency>

        <!-- swagger -->
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger2</artifactId>
            <version>2.8.0</version>
        </dependency>
        <!-- 工具类 -->
        <dependency>
            <groupId>com.supergo</groupId>
            <artifactId>supergo-common</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
    </dependencies>
    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

3、建 yml

# 端口号【openfeign 也是使用在客户端，集成了ribbon】
server:
  port: 9001
spring:
  application:
    name: supergo-manager-web9001
eureka:
  client:
    register-with-eureka: true # 注册进注册中心
    service-url:
      # 集群版
      # defaultZone: http://eureka7001.com:7001/eureka/,http://eureka7002.com:7002/eureka/
      # 单机版
       defaultZone: http://eureka7001.com:7001/eureka/
    # 显示的服务主机名称
  instance:
    prefer-ip-address: true # 访问路径显示 ip【统一：方便调试】
    ip-address: 127.0.0.1
    instance-id: ${ 
   eureka.instance.ip-address}.${ 
   server.port}
    lease-renewal-interval-in-seconds: 3
    lease-expiration-duration-in-seconds: 10

#actuator服务监控与管理
management:
  endpoint:
    #开启端点
    shutdown:
      enabled: true
    health:
      show-details: always
  # 加载所有的端点
  endpoints:
    web:
      exposure:
        include: "*"

# 设置feign客户端超时时间(OpenFeign默认支持ribbon)
ribbon:
  # 指的是建立连接所用的时间,适用于网络状态正常的情况下,两端连接所用的时间
  ReadTimeout: 5000
  # 指的是建立连接后从服务器读取到可用资源所用的时间
  ConnectTimeout: 5000
logging:
  level:
    # feign日志以什么级别监控哪个接口
    com.supergo.ApiBrandFeign: debug

4、启动类

package com.supergo;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
import org.springframework.cloud.openfeign.EnableFeignClients;

@SpringBootApplication
@EnableEurekaClient //注册进注册中心
@EnableFeignClients //发现feign服务
public class ManagerWeb9001 { 
   
    public static void main(String[] args) { 
   
        SpringApplication.run(ManagerWeb9001.class, args);
    }
}

5、controller层

package com.supergo.controller;

import com.supergo.ApiBrandFeign;
import com.supergo.http.HttpResult;
import com.supergo.pojo.Brand;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

/** * @Author: xj0927 * @Description: feign服务调用者 * @Date Created in 2020-12-23 22:01 * @Modified By: */
@RestController
@RequestMapping("/brand")
public class BrandController { 
   

    //feigm服务api接口
    @Autowired
    private ApiBrandFeign brandFeign;

    @PostMapping("/query/{page}/{rows}")
    public HttpResult getBrandList(@RequestBody Brand brand, @PathVariable Integer page, @PathVariable Integer rows) { 
   
        //feign服务
        HttpResult result = brandFeign.findPage(brand, page, rows);
        return result;
    }
}

6、测试

使用 postman 测试

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1_项目搭建

1_项目搭建

数据库

父工程

1、建 Module：supergo_parent

2、改 pom

3、删除 src目录

搭建 Eureka 注册中心

1、建 Module ：supergo_eureka7001

2、改 pom

3、建 yml

4、启动类

添加基础模块

supergo-common

spergo-mapper

supergo-pojo

supergo-base-service

引入 pom

接口规范

实现类

搭建品牌微服务提供者

supergo_manager 父模块

1、建父 Module：supergo_manager

2、改 pom

supergo_manager_service8001 业务模块

1、建 Module：supergo_manager_service8001

2、改 pom

3、建 yml

4、启动类

5、service 层

6、controller 层

7、测试

supergo_manager_feign调用模块

1、建 Moduel：supergo_manager_feign

2、改 pom

3、调用接口

4、使用

搭建品牌微服务调用者

1、建 Module：supergo_manager_web9001

2、改 pom

3、建 yml

4、启动类

5、controller层

6、测试

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