1. Build Seata service

seata supports cluster mode from 1.3 onwards. If we need to use seata version 1.3.0, then we need to specify the storage source of the seata cluster.

1.1 In order to enable the seata cluster to share data

download seata

https://github.com/seata/seata/releases/tag/v1.3.0 https://github.com/seata/seata/releases/tag/v1.3.0 Unzip:

Modify file.conf file

Downloading the seata source code requires the table structure inside

Unzip

Copy the script to seata-server

Find the table corresponding to the database under db and read it into navicat's seata database -----note that it must correspond to the file database configured above

Place the mysql8.0jar package in the lib directory

1.2 Modify the registration center and configuration center

(1) Modify registry.conf

1.3 Put the configuration into the configuration center

(1) Find config.txt under script

(2) Modify config.txt

(3) Put the modified configuration above into the configuration center

(4) Check whether the configuration is successful

(5) Start the seata service

(6) Check whether the service is started successfully

2. Build microservices to connect to seata

Create a table log in each of the above three libraries.

Data rollback log. Pre-snapshot and post-snapshot. ----Regardless of whether it is submitted or rolled back, the records in this table will be deleted.

2.1 Configure microservices

(1) Add dependencies

<!--seata 一定要保证和seata服务的版本匹配-->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-seata</artifactId>
        </dependency>

(2) application.yml arrangement seata