IDEA 搭建SpringCloud 智慧医疗项目

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目录

SpringCloud 智慧医疗整体项目结构说明：

smart-medical 项目创建

 smart-medical-common 通用模块创建

smart-medical-euraka-server 服务注册中心项目

smart-medical-provider 服务提供者服务

smart-medical-comsumer-ribbon 基于Ribbon 创建服务消费者

smart-medical-consumer-feign 基于Feign 服务消费者

smart-medical-zuul 网关服务

SpringCloud 智慧医疗整体项目结构说明：

smart-medical 项目创建

1、IDEA 创建smart-medical maven项目

2、依次创建子项目：

smart-medical-euraka-server
smart-medical-provider
smart-medical-comsumer-ribbon
smart-medical-common
smart-medical-consumer-feign
smart-medical-zuul

各个子模块的创建参考截图进行创建 

3、pom.xml 文件添加SpringBoot 版本和SpringCloud版本信息

<?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>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.0.RELEASE</version>
    </parent>



    <modules>
        <module>smart-medical-euraka-server</module>
        <module>smart-medical-provider</module>
        <module>smart-medical-comsumer-ribbon</module>
        <module>smart-medical-common</module>
        <module>smart-medical-consumer-feign</module>
        <module>smart-medical-zuul</module>
    </modules>


    <groupId>org.example</groupId>
    <artifactId>smart-medical</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>pom</packaging>

    <properties>
        <java.version>1.8</java.version>
        <maven.compiler.source>8</maven.compiler.source>
        <maven.compiler.target>8</maven.compiler.target>
        <spring-cloud.version>Greenwich.SR5</spring-cloud.version>
    </properties>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>$spring-cloud.version</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>
</project>

 smart-medical-common 通用模块创建

项目结构截图：

1、pom.xml 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>smart-medical</artifactId>
        <groupId>org.example</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>smart-medical-common</artifactId>

    <properties>
        <java.version>1.8</java.version>
        <maven.compiler.source>8</maven.compiler.source>
        <maven.compiler.target>8</maven.compiler.target>
    </properties>

</project>

2、添加包名：com.zzg.model \\com.zzg.service

package com.zzg.model;

import java.io.Serializable;
import java.util.Date;

public class User implements Serializable 
    private String id;

    private String account;

    private String name;

    private String passwd;

    private Date createDt;

    private String createBy;

    private Date updateDt;

    private String updateBy;

    private Byte state;

    private static final long serialVersionUID = 1L;

    public String getId() 
        return id;
    

    public void setId(String id) 
        this.id = id == null ? null : id.trim();
    

    public String getAccount() 
        return account;
    

    public void setAccount(String account) 
        this.account = account == null ? null : account.trim();
    

    public String getName() 
        return name;
    

    public void setName(String name) 
        this.name = name == null ? null : name.trim();
    

    public String getPasswd() 
        return passwd;
    

    public void setPasswd(String passwd) 
        this.passwd = passwd == null ? null : passwd.trim();
    

    public Date getCreateDt() 
        return createDt;
    

    public void setCreateDt(Date createDt) 
        this.createDt = createDt;
    

    public String getCreateBy() 
        return createBy;
    

    public void setCreateBy(String createBy) 
        this.createBy = createBy == null ? null : createBy.trim();
    

    public Date getUpdateDt() 
        return updateDt;
    

    public void setUpdateDt(Date updateDt) 
        this.updateDt = updateDt;
    

    public String getUpdateBy() 
        return updateBy;
    

    public void setUpdateBy(String updateBy) 
        this.updateBy = updateBy == null ? null : updateBy.trim();
    

    public Byte getState() 
        return state;
    

    public void setState(Byte state) 
        this.state = state;
    

    @Override
    public String toString() 
        StringBuilder sb = new StringBuilder();
        sb.append(getClass().getSimpleName());
        sb.append(" [");
        sb.append("Hash = ").append(hashCode());
        sb.append(", id=").append(id);
        sb.append(", account=").append(account);
        sb.append(", name=").append(name);
        sb.append(", passwd=").append(passwd);
        sb.append(", createDt=").append(createDt);
        sb.append(", createBy=").append(createBy);
        sb.append(", updateDt=").append(updateDt);
        sb.append(", updateBy=").append(updateBy);
        sb.append(", state=").append(state);
        sb.append(", serialVersionUID=").append(serialVersionUID);
        sb.append("]");
        return sb.toString();
    

package com.zzg.service;

import com.zzg.model.User;

import java.util.List;

public interface UserService 
    List<User> selectAll();

smart-medical-euraka-server 服务注册中心项目

1、pom.xml 添加eurake 服务jar 包依赖

<?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>smart-medical</artifactId>
        <groupId>org.example</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>smart-medical-euraka-server</artifactId>

    <properties>
        <java.version>1.8</java.version>
        <maven.compiler.source>8</maven.compiler.source>
        <maven.compiler.target>8</maven.compiler.target>
    </properties>

    <!-- 添加服务注册中心  -->
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>
        <!--test-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
        </dependency>
        <!--web-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <!--eureka 服务注册中心-->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
        </dependency>
    </dependencies>
</project>

 2、添加Eureka 服务注册中心的SpringBoot 程序入口。

package com.zzg;


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

@SpringBootApplication
@EnableEurekaServer
public class EurakaApplication 
    public static void main(String[] args) 
        SpringApplication.run(EurakaApplication.class, args);

3、添加application.properties 配置文件

server.port=8081

# ???? ???????
eureka.instance.hostname=eureka-server

# eureka client ???????eureka client ??????
eureka.client.register-with-eureka=false
# ?????????eureka server ??eureka????
eureka.client.fetch-registry=false

#??????
eureka.server.enable-self-preservation=false
#??????????????????60??
eureka.server.eviction-interval-timer-in-ms=1000

eureka.client.serviceUrl.defaultZone=http://127.0.0.1:8081/eureka-server/

smart-medical-provider 服务提供者服务

项目截图：

1、pom.xml 添加eureka 客户端jar 、MyBatis、mysql8、Alibaba Druid和智慧医疗通用项目模块依赖。

<?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>smart-medical</artifactId>
        <groupId>org.example</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>smart-medical-provider</artifactId>

    <properties>
        <java.version>1.8</java.version>
        <maven.compiler.source>8</maven.compiler.source>
        <maven.compiler.target>8</maven.compiler.target>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>
        <!--test-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
        </dependency>
        <!--web-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <!--eureka-client-->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
        </dependency>
        <!--springboot 与 mybatis 集成 -->
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>1.3.2</version>
        </dependency>
        <!-- 数据库连接池druid -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid-spring-boot-starter</artifactId>
            <version>1.1.10</version>
        </dependency>
        <!--mysql 驱动程序 -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.12</version>
        </dependency>
        <!--项目基础依赖-->
        <dependency>
            <groupId>org.example</groupId>
            <artifactId>smart-medical-common</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
    </dependencies>

</project>

 2、添加Provider SpringBoot程序入口、Mapper 映射接口、Mapper 映射xml和Controller层

package com.zzg;

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

@SpringBootApplication
@MapperScan("com.zzg.mapper")
@EnableEurekaClient
public class ProviderApplication 
    public static void main(String[] args) 
        SpringApplication.run(ProviderApplication.class, args);
    


package com.zzg.mapper;

import com.zzg.model.User;
import java.util.List;

public interface UserMapper 
    int deleteByPrimaryKey(String id);

    int insert(User record);

    User selectByPrimaryKey(String id);

    List<User> selectAll();

    int updateByPrimaryKey(User record);

<?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.zzg.mapper.UserMapper">
  <resultMap id="BaseResultMap" type="com.zzg.model.User">
    <id column="id" jdbcType="VARCHAR" property="id" />
    <result column="account" jdbcType="VARCHAR" property="account" />
    <result column="name" jdbcType="VARCHAR" property="name" />
    <result column="passwd" jdbcType="VARCHAR" property="passwd" />
    <result column="create_dt" jdbcType="TIMESTAMP" property="createDt" />
    <result column="create_by" jdbcType="VARCHAR" property="createBy" />
    <result column="update_dt" jdbcType="TIMESTAMP" property="updateDt" />
    <result column="update_by" jdbcType="VARCHAR" property="updateBy" />
    <result column="state" jdbcType="TINYINT" property="state" />
  </resultMap>
  <delete id="deleteByPrimaryKey" parameterType="java.lang.String">
    delete from house_user
    where id = #id,jdbcType=VARCHAR
  </delete>
  <insert id="insert" parameterType="com.zzg.model.User">
    insert into house_user (id, account, `name`, 
      passwd, create_dt, create_by, 
      update_dt, update_by, `state`
      )
    values (#id,jdbcType=VARCHAR, #account,jdbcType=VARCHAR, #name,jdbcType=VARCHAR, 
      #passwd,jdbcType=VARCHAR, #createDt,jdbcType=TIMESTAMP, #createBy,jdbcType=VARCHAR, 
      #updateDt,jdbcType=TIMESTAMP, #updateBy,jdbcType=VARCHAR, #state,jdbcType=TINYINT
      )
  </insert>
  <update id="updateByPrimaryKey" parameterType="com.zzg.model.User">
    update house_user
    set account = #account,jdbcType=VARCHAR,
      `name` = #name,jdbcType=VARCHAR,
      passwd = #passwd,jdbcType=VARCHAR,
      create_dt = #createDt,jdbcType=TIMESTAMP,
      create_by = #createBy,jdbcType=VARCHAR,
      update_dt = #updateDt,jdbcType=TIMESTAMP,
      update_by = #updateBy,jdbcType=VARCHAR,
      `state` = #state,jdbcType=TINYINT
    where id = #id,jdbcType=VARCHAR
  </update>
  <select id="selectByPrimaryKey" parameterType="java.lang.String" resultMap="BaseResultMap">
    select id, account, `name`, passwd, create_dt, create_by, update_dt, update_by, `state`
    from house_user
    where id = #id,jdbcType=VARCHAR
  </select>
  <select id="selectAll" resultMap="BaseResultMap">
    select id, account, `name`, passwd, create_dt, create_by, update_dt, update_by, `state`
    from house_user
  </select>
</mapper>
package com.zzg.controller;

import com.zzg.mapper.UserMapper;
import com.zzg.model.User;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.Collection;
import java.util.List;

@RestController
public class UserController 
    @Autowired
    private UserMapper mapper;

    @RequestMapping("/list")
    public List<User> get() 
        List<User> list = mapper.selectAll();
        return list;

3、添加application.properties 配置文件

server.port=8084
server.servlet.context-path=/provider
# ??????????spring.application.name ????
spring.application.name=provider1
eureka.instance.instance-id=provider1
eureka.client.register-with-eureka=true
# ?eureka??????URL
eureka.client.service-url.defaultZone=http://127.0.0.1:8081/eureka/
# ?????????????30??
eureka.instance.lease-renewal-interval-in-seconds=5
# eureka server ?????????????????????client????90??
eureka.instance.lease-expiration-duration-in-seconds=3

# ???????
spring.datasource.url=jdbc:mysql://localhost:3306/house?characterEncoding=utf8&useSSL=false&serverTimezone=UTC&rewriteBatchedStatements=true
spring.datasource.username=root
spring.datasource.password=123456
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
# druid ??
# ?????????????
spring.datasource.druid.initial-size=5
# ???????
spring.datasource.druid.max-active=30
# ???????
spring.datasource.druid.min-idle=5
# ????????????????
spring.datasource.druid.max-wait=60000
# ???????????????????????????????
spring.datasource.druid.time-between-eviction-runs-millis=60000
# ????????????????
spring.datasource.druid.min-evictable-idle-time-millis=300000
# ???????????sql??????????
spring.datasource.druid.validation-query=SELECT 1 FROM DUAL
# ?????true?????????????????????????????????timeBetweenEvictionRunsMillis???validationQuery?????????
spring.datasource.druid.test-while-idle=true
# ???????validationQuery?????????????????????
spring.datasource.druid.test-on-borrow=false
# ???????validationQuery?????????????????????
spring.datasource.druid.test-on-return=false
# ????preparedStatement????PSCache?PSCache???????????????????oracle??mysql??????
spring.datasource.druid.pool-prepared-statements=true
# ???PSCache???????0????0??poolPreparedStatements???????true?
spring.datasource.druid.max-pool-prepared-statement-per-connection-size=50
# ?????????filters????????sql????
spring.datasource.druid.filters=stat,wall,slf4j
# ??connectProperties?????mergeSql????SQL??
spring.datasource.druid.connection-properties=druid.stat.mergeSql=true;druid.stat.slowSqlMillis=500
# ????DruidDataSource?????
spring.datasource.druid.use-global-data-source-stat=true
##### WebStatFilter?? #######
#??StatFilter
spring.datasource.druid.web-stat-filter.enabled=true
#??????
spring.datasource.druid.web-stat-filter.url-pattern=/*
#????????url
spring.datasource.druid.web-stat-filter.exclusions=*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*
#??session????
spring.datasource.druid.web-stat-filter.session-stat-enable=true
#??sessionStatMaxCount?1000?
spring.datasource.druid.web-stat-filter.session-stat-max-count=1000
#spring.datasource.druid.web-stat-filter.principal-session-name=
#spring.datasource.druid.web-stat-filter.principal-cookie-name=
#spring.datasource.druid.web-stat-filter.profile-enable=
##### StatViewServlet?? #######
#?????????
spring.datasource.druid.stat-view-servlet.enabled=true
#?????????
spring.datasource.druid.stat-view-servlet.url-pattern=/druid/*
#?? Reset All ??
spring.datasource.druid.stat-view-servlet.reset-enable=false
#???????
spring.datasource.druid.stat-view-servlet.login-username=admin
#??????
spring.datasource.druid.stat-view-servlet.login-password=123
#??????allow?????????????????
spring.datasource.druid.stat-view-servlet.allow=127.0.0.1
#????deny???allow????deny???????allow??????????
spring.datasource.druid.stat-view-servlet.deny=
# mybatis ??
mybatis.mapper-locations=classpath:mapper/*.xml
mybatis.type-aliases-package=com.zzg.model
# ????????
logging.level.com.zzg.mapper=debug

smart-medical-comsumer-ribbon 基于Ribbon 创建服务消费者

1、项目结构截图：

2、pom.xml 添加eureka 客户端jar 包依赖、hystrix 熔断器jar包依赖和智慧医疗通用模块依赖

<?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>smart-medical</artifactId>
        <groupId>org.example</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>smart-medical-comsumer-ribbon</artifactId>

    <properties>
        <java.version>1.8</java.version>
        <maven.compiler.source>8</maven.compiler.source>
        <maven.compiler.target>8</maven.compiler.target>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>
        <!--test-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
        </dependency>
        <!--web-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <!--eureka-client-->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
        </dependency>

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

        <!--项目基础依赖-->
        <dependency>
            <groupId>org.example</groupId>
            <artifactId>smart-medical-common</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
    </dependencies>

</project>

2、添加hystrix 熔断器 配置、Ribbon 程序入口和服务消费者实现Controller

package com.zzg.config;

import com.netflix.loadbalancer.IRule;
import com.netflix.loadbalancer.RandomRule;
import org.springframework.cloud.client.loadbalancer.LoadBalanced;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.client.RestTemplate;

@Configuration
public class RibbonConfig 
    @Bean
    @LoadBalanced //负载均衡标识
    RestTemplate restTemplate() 
        return new RestTemplate();
    


package com.zzg.controller;

import com.zzg.model.User;
import com.zzg.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;

@RestController
public class UserController 
    @Autowired
    private UserService userService;

    @RequestMapping("/list")
    public List<User> get() 
        List<User> list = userService.selectAll();
        return list;
    


package com.zzg.service;

import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.zzg.model.User;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.web.client.RestTemplate;

import java.util.List;


@Service
public class UserServiceImpl implements  UserService 
    @Autowired
    RestTemplate template;

    @Override
    @HystrixCommand(fallbackMethod = "ServiceError")
    public List<User> selectAll() 
        String url ="http://provider1/provider/list";
        return template.getForObject(url, List.class);
    

    public List<User> ServiceError() 
        System.out.println("熔断机制启动, Provider 服务提供者异常");
        return null;
    



package com.zzg;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
import org.springframework.cloud.netflix.hystrix.EnableHystrix;

@SpringBootApplication
@EnableEurekaClient
@EnableHystrix
public class RibbonApplication 
    public static void main(String[] args) 
        SpringApplication.run(RibbonApplication.class, args);

3、添加application.properties 配置文件 

server.port=8085
server.servlet.context-path=/consumer-ribbon
spring.application.name=consumer-ribbon
eureka.client.service-url.defaultZone=http://127.0.0.1:8081/eureka/

smart-medical-consumer-feign 基于Feign 服务消费者

1、项目结构截图：

2、pom.xml 文件添加  添加eureka 客户端jar 包依赖、hystrix 熔断器jar包依赖和智慧医疗通用模块依赖

<?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>smart-medical</artifactId>
        <groupId>org.example</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>smart-medical-consumer-feign</artifactId>

    <properties>
        <java.version>1.8</java.version>
        <maven.compiler.source>8</maven.compiler.source>
        <maven.compiler.target>8</maven.compiler.target>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>
        <!--test-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
        </dependency>
        <!--web-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <!--eureka-client-->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
        </dependency>
        <!--feign  -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-openfeign</artifactId>
        </dependency>
        <!--项目基础依赖-->
        <dependency>
            <groupId>org.example</groupId>
            <artifactId>smart-medical-common</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
    </dependencies>

</project>

2、添加hystrix 熔断器 配置、Feign程序入口和服务消费者实现Controller

package com.zzg.controller;

import com.zzg.model.User;
import com.zzg.service.UserServiceFeign;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;

@RestController
public class UserFeignController 
    @Autowired
    UserServiceFeign userServiceFeign;

    @RequestMapping(value = "/list")
    public List<User> selectAll() 
        return userServiceFeign.selectAll();
    



package com.zzg.hystric;

import com.zzg.model.User;
import com.zzg.service.UserServiceFeign;
import org.springframework.stereotype.Component;

import java.util.List;

@Component
public class UserServiceHystric implements UserServiceFeign 
    @Override
    public List<User> selectAll() 
        System.out.println("熔断机制启动, Provider 服务提供者异常");
        return null;
    


package com.zzg.service;

import com.zzg.hystric.UserServiceHystric;
import com.zzg.model.User;
import org.springframework.cloud.openfeign.FeignClient;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.GetMapping;

import java.util.List;

@FeignClient(value = "provider1",fallback = UserServiceHystric.class)
@Service
public interface UserServiceFeign 
    @GetMapping("/provider/list")
    List<User> selectAll();


package com.zzg;

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
@EnableFeignClients
public class FeignApplication 
    public static void main(String[] args) 
        SpringApplication.run(FeignApplication.class, args);

3、添加application.properties 配置文件 

server.port=8086
spring.application.name=consumer-feign
eureka.client.service-url.defaultZone=http://127.0.0.1:8081/eureka/
# ??????
feign.hystrix.enabled=true

smart-medical-zuul 网关服务

1、项目截图：

2、添加zuul 网关服务程序入口

package com.zzg;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
import org.springframework.cloud.netflix.zuul.EnableZuulProxy;

@SpringBootApplication
@EnableEurekaClient
@EnableZuulProxy
public class ZuulApplication 
    public static void main(String[] args) 
        SpringApplication.run(ZuulApplication.class, args);

3、添加application.properties 配置文件

server.port=8087
spring.application.name=zuul
eureka.client.service-url.defaultZone=http://127.0.0.1:8081/eureka/

Github地址：git@github.com:zhouzhiwengang/SpringCloud-.git

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