java常用检验接口control方式

@Controller
public class ItemController {

    @Autowired
    private ItemService itemService;
    
    @RequestMapping("/item/{itemId}")
    //@ResponseBody
    public void getItemById(@PathVariable Long itemId,HttpServletResponse response) throws IOException {
        TbItem tbItem;
        try {
            tbItem = itemService.getItemById(itemId);
            //如果输出数据中文乱码
            //response.setCharacterEncoding("UTF-8");
            //response.setContentType("text/html;charset=UTF-8");
            response.getWriter().print(tbItem);
        } catch (Exception e) {
            
            e.printStackTrace();
            System.out.println("fdjksdjfsdjkfksjdkfjsjdk");
            
        }
        
        
    }
}