Autowired injection to NULL in spring custom generic class

I encountered in the actual development of a piece of public code, a few methods need to be dropped, but if the individual pull out to write a method, the arguments are different, so think of the generic type.

For example, this is a public code:

To save the order information, more than one method call Orderfilterrequest orderfilterrequest = new orderfilterrequest () is required; Btorderfilterrequest.setuserid ("1"); Btorderfilterrequest.setstatus ("0"); List<order> orderresultlist = orderservice.findorders (orderfilterrequest);Order  Result = null;if (Collectionutils.isempty (orderresultlist )) {    order  Order = copierutils.convert (Request, order.class);     order.setrealname ( Customer.getrealname ());     order.setidcardno (Customer.getidcardno ());     order.setorderno ("Order"  + dateutil.getymdhms ());     order.setstatus ("0");     order.setcreatetime (New date ());     order.setupdatetime (new  date ());     order.setuserid ("1");    result =  Orderservice.createorder (Order);} Else{    order orDerresult =  orderresultlist.get (0);     copierutils.copy (request,  Orderresult);     orderresult.setupdatetime (New date ());     result  = orderservice.updateorder (Btorderresult);}

The

refines this code into a generic class:

@Transactional (readonly = true) @Componentpublic  class orderrequest<t>{@ autowiredprivate orderservice orderservice; @Transactionalpublic  order orderinfosave (T  request)  {orderfilterrequest orderfilterrequest = new orderfilterrequest ();                  Btorderfilterrequest.setuserid ("1");                 btorderfilterrequest.setstatus ("0");                 List<Order> orderResultList =  Orderservice.findorders (orderfilterrequest);                 Order result = null;                 if (CollectIonutils.isempty (orderresultlist )) {                     order order = copierutils.convert (Request ,  order.class);                     order.setrealname (Customer.getrealname ());                     order.setidcardno ( Customer.getidcardno ());                     order.setorderno ("Order"  + dateutil.getymdhms ());                      Order.setstatus ("0");                      Order.setcreatetime (New date ());                     order.setupdatetime (New date ());                      Order.setuserid ("1");                     result = orderservice.createorder (Order);                 }else{                     Order  Orderresult =  orderresultlist.get (0);                     copierutils.copy (Request, orderResult);        &Nbsp;            orderresult.setupdatetime (New  date ());                     result = orderservice.updateorder (Btorderresult);                 }         return result;}}

The first thing I did was call this:

public void Method1 (Request1 request) {orderrequest<request1> ordercreaterequest = new Orderrequest<request     1> (); Order result = Ordercreaterequest.orderinfosave (request);} public void Method2 (Request2 request) {orderrequest<request2> ordercreaterequest = new Orderrequest<request     2> (); Order result = Ordercreaterequest.orderinfosave (request);}

However, OrderService in orderrequest is null. ( injecting the service interface into the controller layer, injecting orderservice into the service layer is a value ), trying a lot of workarounds, and finally discovering that the original spring custom class instantiation needs to be injected , you cannot use new, or you are out of spring management . Change it to the following way:

@Autowiredprivate orderrequest<request1> request1; @Autowiredprivate orderrequest<request2> request2; public void Method1 (Request1 request) {Order result = Request1.orderinfosave (request);} public void Method2 (Request2 request) {Order result = Request2.orderinfosave (request);}

Autowired injection to NULL in spring custom generic class