有没有一种方法可以计算对sql.Exec的每次调用？

I am writing a backend in go for an angular application. I want to log for every request how many database queries were executed.

For this, I want to increment an integer every time sql.Exec is called. How do I do this without manually adding it to every single place I use sql.Exec? Or is there a better way to do this?

How do I do this without manually adding it to every single place I use sql.Exec?

Wrap your SQL access object. For example:

type MyDB struct {
    *sql.DB
    count int
}

func (db *MyDB) Exec(query string, args ...interface{}) (sql.Result,error) {
    db.count++
    return db.DB.Exec(query, args...)
}

Then use your wrapped type everywhere. This will (probably) mean updating a lot of code to use an interface, rather than a *sql.DB variable.

The only other option is to write a wrapper around the SQL driver (rather than the client). But you'd use the same approach. This method requires a bit more understanding of Go's sql internals.

How do I do this without manually adding it to every single place I use sql.Exec?

Not at all. Go offers no magic. If you want things done you must do them.