mission-service/util/rabbitmq.js

'use strict';

const Service = require('egg').Service;

class RabbitmqService extends Service {

  constructor(ctx) {
    super(ctx);
  }

  // mission队列处理
  async mission() {
    const { mq } = this.ctx;
    if (mq) {
      const ch = await mq.conn.createChannel();
      // TODO 需要写成匹配的形式
      const queue = 'mission/center';
      try {
        // 创建队列:在没有队列的情况,直接获取会导致程序无法启动
        await ch.assertQueue(queue, { durable: false });
        await ch.consume(queue, msg => this.dealMission(msg), { noAck: true });
      } catch (error) {
        this.ctx.logger.error('未找到订阅的队列');
      }
    } else {
      this.ctx.logger.error('!!!!!!没有配置MQ插件!!!!!!');
    }
  }
  // 执行任务
  async dealMission(bdata) {
    if (!bdata) this.ctx.logger.error('mission队列中信息不存在');
    let data = bdata.content.toString();
    try {
      data = JSON.parse(data);
    } catch (error) {
      this.ctx.logger.error('数据不是object');
    }
    const { service, method, ...others } = data;
    if (service && method) this.ctx.service[service][method](others);

  }
}

module.exports = RabbitmqService;