springcloud_demo

<dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-dependencies</artifactId>
        <version>2.2.2.RELEASE</version>
        <type>pom</type>
        <scope>import</scope>
</dependency>
<dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-dependencies</artifactId>
        <version>Hoxton.SR1</version>
        <type>pom</type>
        <scope>import</scope>
</dependency>

DROP TABLE IF EXISTS `payment`;
CREATE TABLE `payment`
(
    `id`     bigint(20) NOT NULL AUTO_INCREMENT COMMENT '主键',
    `serial` varchar(200) CHARACTER SET utf8 COLLATE utf8_general_ci DEFAULT NULL COMMENT '支付流水号',
    PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB CHARACTER SET = utf8 COLLATE = utf8_general_ci COMMENT = '支付表' ROW_FORMAT = Dynamic;

INSERT INTO `payment`
VALUES (1, '202208251140156119058');

<component name="RunDashboard">
    <option name="configurationTypes">
      <set>
        <option value="SpringBootApplicationConfigurationType" />
      </set>
    </option>
  </component>

<dependency>
    <groupId>com.lvoyee.springcloud</groupId>
    <artifactId>cloud-api-common</artifactId>
    <version>${project.version}</version>
    <scope>compile</scope>
</dependency>

<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
</dependency>

# spring cloud
127.0.0.1 eureka7001.com
127.0.0.1 eureka7002.com

-Dserver.port=8002

# 服务端
eureka.server.enable-self-preservation=true

# 客户端 时间改短一点
eureka.instance.lease-renewal-interval-in-seconds=30
eureka.instance.lease-expiration-duration-in-seconds=90

# 禁用 AdminServer 服务
admin.enableServer=false

Failed to configure a DataSource: ‘url‘ attribute is not specified and no em

#8004表示注册到zookeeper服务器的支付服务提供者端口号
server:
  port: 8004


#服务别名----注册zookeeper到注册中心名称
spring:
  application:
    name: cloud-provider-payment
  cloud:
    zookeeper:
      connect-string: 192.168.191.133:2181
  datasource:
    type: com.alibaba.druid.pool.DruidDataSource
    driver-class-name: org.gjt.mm.mysql.Driver
    url: jdbc:mysql://localhost:3306/cloud_db?useUnicode=true&characterEncoding=utf-8&usessL=false
    username: root
    password: root

package com.yicheng.springcloud.config;

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 ApplicationContextConfig {

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

    @HystrixCommand(fallbackMethod = "paymentInfo_TimeOutHandler",
            commandProperties = {
                    @HystrixProperty(name = "execution.isolation.thread.timeoutInMilliseconds",value = "3000")
            })

 @HystrixCommand(fallbackMethod = "paymentCircuitBreakerFallback", commandProperties = {
            @HystrixProperty(name = "circuitBreaker.enabled", value = "true"),/* 是否开启断路器*/
            @HystrixProperty(name = "circuitBreaker.requestVolumeThreshold", value = "10"),// 请求次数
            @HystrixProperty(name = "circuitBreaker.sleepWindowInMilliseconds", value = "10000"), // 时间窗口期
            @HystrixProperty(name = "circuitBreaker.errorThresholdPercentage", value = "60"),// 失败率达到多少后跳闸
//            @HystrixProperty(name = "execution.isolation.thread.timeoutInMilliseconds", value = "5000")// 超时处理
    })

curl -X POST "http://localhost:3355/actuator/refresh"

curl -X POST "http://localhost:3344/actuator/bus-refresh/config-client:3355"

cloud:
    stream:
      binders: # 在此处配置要绑定的rabbitmq的服务信息；
        defaultRabbit: # 表示定义的名称，用于于binding整合
          type: rabbit # 消息组件类型
          environment: # 设置rabbitmq的相关的环境配置
            spring:
              rabbitmq:
                host: localhost
                port: 5672
                username: guest
                password: guest
      bindings: # 服务的整合处理
        input: # 这个名字是一个通道的名称
          destination: studyExchange # 表示要使用的Exchange名称定义
          content-type: application/json # 设置消息类型，本次为json，文本则设置“text/plain”
          binder: defaultRabbit  # 设置要绑定的消息服务的具体设置
          group: MessageA # 这个group 狠重要

公式:${spring.application.name}-${spring.profile.active}.${spring.cloud.nacos.config.file-extension}

prefix                  默认为 spring.application.name 的值
spring.profile.active   既为当前环境对应的 profile ,可以通过配置项 spring.profile.active 来配置
file-exetension         为配置内容的数据格式，可以通过配置项 spring.cloud.nacos.config.file-extension 配置