某马2024SpringCloud微服务开发与实战 bug记录与微服务知识拆解（MybatisPlus、Docker、MQ、ES、Redis）第五章

java -Dserver.port=8090 -Dcsp.sentinel.dashboard.server=localhost:8090 -Dproject.name=sentinel-dashboard -jar sentinel-dashboard.jar

spring:
  cloud:
    sentinel:
      transport:
        dashboard: localhost:8090 # sentinel的控制台
      http-method-specify: true # 是否 设置请求方式作为资源名称

docker load -i /root/seata-1.5.2.tar

docker run --name seata \
-p 8099:8099 \
-p 7099:7099 \
-e SEATA_IP=192.168.200.128 \
-v /root/seata:/seata-server/resources \
--privileged=true \
--network Qiuner-net \
-d \
seataio/seata-server:1.5.2

docker run --name seata \
-p 8099:8099 \
-p 7099:7099 \
-e SEATA_IP=192.168.150.101 \
-v /root/seata:/seata-server/resources \
--privileged=true \
--network Qiuner-net \
-d \
seataio/seata-server:1.5.2

docker network connect Qiuner-net seata

<!--统一配置管理-->
<dependency>
    <groupId>com.alibaba.cloud</groupId>
    <artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
</dependency>
<!--读取bootstrap文件-->
<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-bootstrap</artifactId>
</dependency>
<!--seata-->
<dependency>
    <groupId>com.alibaba.cloud</groupId>
    <artifactId>spring-cloud-starter-alibaba-seata</artifactId>
</dependency>

seata:
  registry: # TC服务注册中心的配置，微服务根据这些信息去注册中心获取tc服务地址
    type: nacos # 注册中心类型 nacos
    nacos:
      server-addr: 192.168.200.128:8848 # nacos地址
      namespace: "" # namespace，默认为空
      group: DEFAULT_GROUP # 分组，默认是DEFAULT_GROUP
      application: seata-server # seata服务名称
      username: nacos
      password: nacos
  tx-service-group: hmall # 事务组名称
  service:
    vgroup-mapping: # 事务组与tc集群的映射关系
      hmall: "default"

spring:
  application:
    name: item-service # 服务名称
  profiles:
    active: dev
  cloud:
    nacos:
      server-addr: 192.168.200.128:8848 # nacos地址
      config:
        file-extension: yaml # 文件后缀名
        shared-configs: # 共享配置
          - dataId: shared-jdbc.yaml # 共享mybatis配置
          - dataId: shared-log.yaml # 共享日志配置
          - dataId: shared-swagger.yaml # 共享日志配置
          - dataId: shared-seata.yaml # 共享seata配置

server:
  port: 8081
feign:
  okhttp:
    enabled: true # 开启OKHttp连接池支持
  sentinel:
    enabled: true # 开启Feign对Sentinel的整合
hm:
  swagger:
    title: "商品服务接口文档"
    package: com.hmall.item.controller
  db:
    database: hm-item

--add-opens java.base/java.lang.invoke=ALL-UNNAMED 

java -Dserver.port=8090 -Dcsp.sentinel.dashboard.server=localhost:8090 -Dproject.name=sentinel-dashboard -jar sentinel-dashboard.jar

       <!--sentinel-->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-sentinel</artifactId>
        </dependency>

package com.hmall.api.client.fallback;

import com.hmall.api.client.CartClient;
import com.hmall.common.exception.BizIllegalException;
import lombok.extern.slf4j.Slf4j;
import org.springframework.cloud.openfeign.FallbackFactory;

import java.util.Collection;

@Slf4j
public class CartClientFallback implements FallbackFactory<CartClient> {
    @Override
    public CartClient create(Throwable cause) {
        return new CartClient(){

            @Override
            public void deleteCartItemByIds(Collection<Long> ids) {
                log.error("远程调用CartClientt#deleteCartItemByIds方法出现异常，参数：{}", ids, cause);
                // 批量删除失败，进行事务回滚111
                throw new BizIllegalException(cause);
            }
        };
    }
}