设计模式
Example
ex1
接口类，定义
public interface DeductInvalidService {
void handleInvalid(JSONArray items);
void updateBudget(List<String> businessNos, String businessType);
}
抽象类，实现部分共有方法
public abstract class AbstractDeductInvalidService implements DeductInvalidService {
@Override
public void updateBudget(List<String> businessNos, String businessType) {
//logic code
}
}
具体实现类 若干
@Service("generateInvalidService")
public class GenerateInvalidService extends AbstractDeductInvalidService {
@Override
public void handleInvalid(JSONArray items) {
//logic code
super.updateBudget(nos, businessType);
}
}
使用
@Component
public class DeductInvalidFactory {
@Autowired
private ApplicationContext context;
private static Map<String, String> map = new HashMap<>();
static {
map.put("businessType1", "generateInvalidService");
map.put("businessType2", "generateInvalidService2");
map.put("businessType3", "generateInvalidService3");
//etc.
}
public DeductInvalidService getInvalidHandler(String businessType) {
return (DeductInvalidService) context.getBean(map.get(businessType));
}
}
//using in code
public class UsingExample {
public static void main(String[] args) {
DeductInvalidService service = deductInvalidFactory.getInvalidHandler("businessType");
service.handleInvalid(items);
}
}
Last modified: 28 十一月 2023