Background: the original acquisition parameters need to add the collection array [Object {A}, {Object A}] type parameter, a rear end directly List <entity class A> receive error: the Failed to the instantiate [java.util.List ]: Specified class IS AN interface .
Try Method 1 : repackaging model type B (configuration parameter List <entity class A>) to receive, acquire data is null. (Transmission format to the front end value: { "id", "123 "; "userList", "[{user}, {user}, {user}]"})
Try Method 2 : * first target sequence into a string array, then put the object. Background Use of type String to receive *
