How To Configure MongoDb Collection Name For a Class in Spring Data

Question

I have a collection called Products in my MongoDB database, which is represented by the interface IProductPrice in my Java code. The following repo

Answer 1

I use static class and method in SpEL;

public class CollectionNameHolder {
    private static final ThreadLocal collectionNameThreadLocal = new ThreadLocal<>();

    public static String get(){
        String collectionName = collectionNameThreadLocal.get();
        if(collectionName == null){
            collectionName = DataCenterApiConstant.APP_WECHAT_DOCTOR_PATIENT_COLLECTION_NAME;
            collectionNameThreadLocal.set(collectionName);
        }
        return collectionName;
    }

    public static void set(String collectionName){
        collectionNameThreadLocal.set(collectionName);
    }

    public static void reset(){
        collectionNameThreadLocal.remove();
    }
}

In Entity class ,@Document(collection = "#{T(com.test.data.CollectionNameHolder).get()}")

And then ,use

CollectionNameHolder.set("testx_"+pageNum) 

in Service , and

CollectionNameHolder.reset();

Hope it helps you.