java基础开发泛型类的详解

public class TemplateController<T extends IBaseService,E> {
    private Logger logger = LoggerFactory.getLogger(getClass());
    private T t;
    //调用时传入T的对象
    public TemplateController(T obj){
        t=obj;
    }

    public R getList(Map<String, Object> params){
        try {
            String pageSize = params.get("pagesize").toString();
            String currPage = params.get("currpage").toString();
            String cName = params.get("CName").toString();
            String regionCode = params.get("regionCode").toString();
            long size = Long.parseLong(pageSize);
            long currPageNo = Long.parseLong(currPage);
            Page<E> page=new Page<>(currPageNo,size);

            //查询省市时代码截断
            String  code = RegionCode.GetRegionCode(regionCode);
            PageUtils data = t.getList(page,cName,code);
            return R.ok().put("data", data);
        } catch (Exception e) {
            logger.debug("传入数据出错"+e.getStackTrace());
            return R.error("传入数据出错"+e.getMessage());
        }
    }
}

public interface IBaseService<T> {
    //取分页记录
    PageUtils getList(Page<T> page, String cName, String regionCode); 
}

@RequestMapping("bank")
public class ArtBankController extends TemplateController<ArtBankService,ArtBankEntity> {

    @Autowired
    private ArtBankService jobArtBankService;

    public ArtBankController(ArtBankService jobArtBankService) {
        super(jobArtBankService);
    }

    //执行代码简单，只需调用父类的getList方法即可
    @RequestMapping("/list")
    public R list(@RequestParam Map<String, Object> params){
        return this.getList(params);
    }
 }