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                            # 基于MQ的分布式事務的實現？
其本質是**保證不同數據庫的數據一致性**

![](https://img.kancloud.cn/51/2d/512d2cac63599b16c147ecb72ca35b1b_905x515.png)

生產者處理業務邏輯----->保存一份消息到本地消息表---->發送消息到MQ---->消費者監聽到消息---->到本地消息表判斷是否為重復消費記錄----->(不是重復消費)執行邏輯----->把消息寫到消費表---->發送消息到MQ---->生產者監聽到消息，把本地消費表的該條記錄的type標記為2，

對于一些type=1的數據用定時任務去冗余消費

![](https://img.kancloud.cn/2d/79/2d79223d8dd4266cc68c20cab845166c_1014x570.png)
                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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