1.配置只读路由 ①配置A副本的只读路由属性(ReadOnly代表‘只读意向’) ALTER AVAILABILITY GROUP [testAG] MODIFY REPLICA ON N'WIN-14VNU7CGQO1' WITH (SECONDARY_ROLE (ALLOW_CONNECTIONS = READ_ONLY)); ②配置A副本的只读路由URL ALTER AVAILABILITY GROUP [testAG] MODIFY REPLICA ON N'WIN-14VNU7CGQO…