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1. Database primary key, foreign key type is bigint, then what type of variable should be defined in the background?

The background is received with string, because the previous paragraph is generally json string, the background is directly received, mysql is able to convert the string of numeric type to the corresponding int/bigint.

2. configure the domain name

Or you can use Nginx, you can omit the port.

Technical structure:

Service Oriented Distributed Architecture (SOA)

Service Framework: Dubbo

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