前提软件安装

nacos 服务治理:

github下载地址:https://github.com/alibaba/nacos/tags

码云下载地址:https://gitee.com/mirrors/Nacos

百度云盘:链接:https://pan.baidu.com/s/1KSMbDfWU0lhQxrkojwqoCQ 提取码:xalg

nacos快速开始:https://nacos.io/zh-cn/docs/quick-start.html

下载完成之后,解压,进入项目目录。

Springcloud和Springboot整合RocketMQ区别 spring,springboot,springcloud_ide

进入解压后的bin目录,运行startup.cmd启动nacos

Springcloud和Springboot整合RocketMQ区别 spring,springboot,springcloud_ide_02

Springcloud和Springboot整合RocketMQ区别 spring,springboot,springcloud_spring_03

访问地址: http://192.168.32.1:8848/nacos/index.html

nacos 默认用户名、密码均为 nacos

nacos已成功安装运行!

zipkin 链路追踪:

下载:
https://dl.bintray.com/openzipkin/maven/io/zipkin/java/zipkin-server/

启动命令

java -jar D:/software/zipkin-server-2.12.9-exec.jar

访问地址:http://localhost:9411/zipkin/

Sentinel 分布式系统的流量防卫兵

不安装该软件,项目也可以运行,只是无法访问控制台,进行监控。

GitHub 地址:https://github.com/alibaba/Sentinel

百度云地址:链接:https://pan.baidu.com/s/1OKg-Q8lXtHhT7ihIUhPtxA 提取码:3oaq

命令启动:

java -jar D:/software/sentinel-dashboard-1.7.1.jar

访问地址: http://localhost:8080/ , Sentinel 登录页面,输入默认登录账号密码均为 sentinel,都是小写。

Springcloud和Springboot整合RocketMQ区别 spring,springboot,springcloud_ci_04

创建springbootcloud项目

1. 新建个maven根项目。

File –> New –> Project。选择Maven、下一步。

后面就是输入项目名称,选择本项目地址就不一一描述了。

2. 建立子项目。maven项目。

点击项目名称右键。 New –> Module,后面操作步骤同上面差不多。

3. 根项目的pom.xml

<?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>2.1.3.RELEASE</version>
    </parent>
    <groupId>com.blackcat</groupId>
    <artifactId>demo-springbootcloud-alibaba</artifactId>
    <packaging>pom</packaging>
    <version>1.0-SNAPSHOT</version>
    <modules>
        <module>consumer</module>
        <module>provider</module>
    </modules>
    <properties>
        <java.version>1.8</java.version>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <spring-cloud.version>Greenwich.RELEASE</spring-cloud.version>
        <spring-cloud-alibaba.version>2.1.0.RELEASE</spring-cloud-alibaba.version>
        <swagger.version>2.4.0</swagger.version>
    </properties>
    <dependencyManagement>
        <dependencies>
            <!-- spring-cloud -->
            <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>
            <!-- swagger-ui -->
            <dependency>
                <groupId>io.springfox</groupId>
                <artifactId>springfox-swagger2</artifactId>
                <version>${swagger.version}</version>
            </dependency>
            <dependency>
                <groupId>io.springfox</groupId>
                <artifactId>springfox-swagger-ui</artifactId>
                <version>${swagger.version}</version>
            </dependency>
            <!-- nacos -->
            <dependency>
                <groupId>com.alibaba.cloud</groupId>
                <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
            </dependency>
            <dependency>
                <groupId>com.alibaba.cloud</groupId>
                <artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
            </dependency>
        </dependencies>
    </dependencyManagement>
    <dependencies>
        <!--sleuth-->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-sleuth</artifactId>
        </dependency>
        <!--zipkin-->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-zipkin</artifactId>
        </dependency>
    </dependencies>
</project>

4. 提供者示例

nacos添加配置文件,填完发布。

Springcloud和Springboot整合RocketMQ区别 spring,springboot,springcloud_ci_05

Springcloud和Springboot整合RocketMQ区别 spring,springboot,springcloud_spring_06

nacosprovider-dev-yaml

server:
  port: 8081
spring:
  application:
    name: provider
  zipkin:
    base-url: http://localhost:9411
    discoveryClientEnabled: false
  sleuth:
    sampler:
      probability:  1.0
  cloud:
    nacos:
      discovery:
        server-addr: localhost:8848

Springcloud和Springboot整合RocketMQ区别 spring,springboot,springcloud_ide_07

项目添加bootstrap.xml

spring:
  application:
    name: provider # nacos中配置文件名称。如:provider-dev.yaml
  cloud:
    nacos:
      config:
        server-addr: localhost:8848 # nacos服务端地址
        file-extension: yaml # 配置格式
  profiles:
    active: dev # 环境配置 如:provider-dev.yaml 中的dev

项目结构

Springcloud和Springboot整合RocketMQ区别 spring,springboot,springcloud_ide_08

源码后面会附出,就不每个类的代码就一一附出了。

项目启动后,查看nacos。

每启动一个服务,就会在服务列表中看到。

Springcloud和Springboot整合RocketMQ区别 spring,springboot,springcloud_spring_09

5. 消费者示例

项目结构

Springcloud和Springboot整合RocketMQ区别 spring,springboot,springcloud_spring_10

nacos 的consumer-dev-yaml

server:
  port: 8082
spring:
  application:
    name: consumer
  zipkin:
    base-url: http://localhost:9411
    discoveryClientEnabled: false
  sleuth:
    sampler:
      probability:  1.0 #采样百分比  0.0 - 1.0
  cloud:
    nacos:
      discovery:
        server-addr: localhost:8848
    sentinel:
      transport:
        port: 8888 #默认8888端口,假如被占用会自动从8888开始依次+1扫描,直至找到未被占用的端口
        dashboard: localhost:8080 #指定Sentinel DashBoard服务地址
remote:
  server: provider
#开启feign对sentinel的支持
feign:
  sentinel:
    enabled: true

主要代码

package com.blackcat.springbootcloud.feign;
import com.blackcat.springbootcloud.feign.fallback.ConsumerServiceFallback;
import org.springframework.cloud.openfeign.FeignClient;
import org.springframework.web.bind.annotation.RequestMapping;
/**
  * <p> 描述 :
  * @author : blackcat
  * @date  : 2020/8/28 16:14
 *
 *  ${remote.server} 为配置文件中的配置
 *  server:为提供者服务名称,如:provider-dev.yaml
 */
@FeignClient(value = "${remote.server}",fallback = ConsumerServiceFallback.class)
public interface ConsumerService {
    /**
     * <p> 描述 : 
     * @author : blackcat
     * @date  : 2020/8/28 16:16   
     * 
     * /provider/test 为提供者示例的方法链接
    */
    @RequestMapping("/provider/test")
    String test();
}

ConsumerServiceFallback:为当访问/provider/test访问不到,就会调用该类的方法。

package com.blackcat.springbootcloud.feign.fallback;
import com.blackcat.springbootcloud.feign.ConsumerService;
import org.springframework.stereotype.Service;
@Service
public class ConsumerServiceFallback implements ConsumerService {
    @Override
    public String test() {
        return "访问失败";
    }
}

访问结果

Springcloud和Springboot整合RocketMQ区别 spring,springboot,springcloud_ide_11

zipkin 控制台

Zipkin 是一个开放源代码分布式的跟踪系统,每个服务向zipkin报告计时数据,zipkin会根据调用关系通过Zipkin UI生成依赖关系图。

访问方法后,点击查询,会显示查询记录。

Springcloud和Springboot整合RocketMQ区别 spring,springboot,springcloud_ci_12

点击方法记录,会有详细的调用信息,用时。

根据下发示例,可以看出那个两个方法用时,就知道每个方法的用时,就知道问题出在何处。

Springcloud和Springboot整合RocketMQ区别 spring,springboot,springcloud_spring_13

sentinel 控制台

Springcloud和Springboot整合RocketMQ区别 spring,springboot,springcloud_ide_14

Springcloud和Springboot整合RocketMQ区别 spring,springboot,springcloud_ide_15

示例源码

https://gitee.com/kylin_lawliet/demo-springbootcloud-alibaba.git