shop--6.店鋪註冊--店鋪註冊之Controller層（邏輯）
阿新 • • 發佈：2018-07-21
返回 ide put https hashmap ping red 上傳圖片 key 
1.接收並轉化相應的參數，包括店鋪信息和圖片信息
2.註冊店鋪
3.返回結果
@Controller
@RequestMapping("/shopadmin")
public class ShopManagementController{
@Autowired
private ShopService shopService;
//註冊店鋪 @RequestMapping(value="/registershop", method= RequestMethod.POST ) @ResponseBody public Map<String, Object> registerShop(HttpServletRequest request){ Map<String, Object> modelMap = new HashMap<String,Object>(); //1.接收並轉化相應的參數，包括店鋪信息和圖片信息 String shopStr = HttpServletRequestUtil.getString( request, "shopStr" ); ObjectMapper mapper = new ObjectMapper(); // create once, reuse Shop shop = null; try { shop= mapper.readValue(shopStr, Shop.class); } catch (IOException e) { modelMap.put("success", false); modelMap.put("errMsg", e.getMessage()); return modelMap; }
//-----------------------------------------------------------------------------
//獲取文件流CommonsMultipartFile shopImg = null; //在本次會話的上下文獲取上傳的文件 CommonsMultipartResolver commonsMultipartResolver = new CommonsMultipartResolver(request.getSession().getServletContext()); //如果文件上傳的有值 if(commonsMultipartResolver.isMultipart( request )){ MultipartHttpServletRequest multipartHttpServletRequest = (MultipartHttpServletRequest)request; shopImg = (CommonsMultipartFile)multipartHttpServletRequest.getFile("shopImg"); } else{ modelMap.put( "success", false ); modelMap.put("errMsg", "上傳圖片不能為空"); return modelMap; } //2.註冊店鋪 if(shop != null && shopImg != null){ PersonInfo user = (PersonInfo) request.getSession().getAttribute("user"); shop.setOwner( user ); ShopExecution shopExecution = shopService.addShop(shop, shopImg); if(shopExecution.getState() == ShopStateEnum.CHECK.getState()){ modelMap.put( "success", true ); }else{ modelMap.put( "success", false ); modelMap.put( "errMsg", shopExecution.getStateInfo()); } }else{ modelMap.put("success", false); modelMap.put("errMsg", "請輸入店鋪信息"); } //3.返回結果 return modelMap; }
}
解析request裏面的一些參數
HttpServletRequestUtil
1 public class HttpServletRequestUtil { 2 public static int getInt(HttpServletRequest request,String key) { 3 try { 4 return Integer.decode(request.getParameter(key)); 5 }catch (Exception e) { 6 //如果轉化失敗 7 return -1; 8 } 9 } 10 public static long getLong(HttpServletRequest request,String key) { 11 try { 12 return Long.valueOf(request.getParameter(key)); 13 }catch (Exception e) { 14 //如果轉化失敗 15 return -1; 16 } 17 } 18 public static Double getDouble(HttpServletRequest request,String key) { 19 try { 20 return Double.valueOf(request.getParameter(key)); 21 }catch (Exception e) { 22 //如果轉化失敗 23 return -1d; 24 } 25 } 26 public static boolean getBoolean(HttpServletRequest request,String key) { 27 try { 28 return Boolean.valueOf(request.getParameter(key)); 29 }catch (Exception e) { 30 //如果轉化失敗 31 return false; 32 } 33 } 34 35 public static String getString(HttpServletRequest request,String key) { 36 try { 37 String result = request.getParameter(key); 38 if(result!=null) { 39 result = result.trim(); 40 } 41 if("".equals(result)) { 42 result = null; 43 } 44 return result; 45 }catch (Exception e) { 46 return null; 47 } 48 } 49 }
改造後的Controller
1 @RequestMapping(value = "/registershop", method = RequestMethod.POST) 2 @ResponseBody 3 private Map<String, Object> registerShop(HttpServletRequest request) { 4 Map<String, Object> modelMap = new HashMap<String, Object>(); 5 if (!CodeUtil.checkVerifyCode(request)) { 6 modelMap.put("success", false); 7 modelMap.put("error", "輸入了錯誤的驗證碼"); 8 return modelMap; 9 } 10 // 1.接受並轉化相應的參數，包括店鋪信息以及圖片信息 11 String shopStr = HttpServletRequestUtil.getString(request, "shopStr"); 12 ObjectMapper mapper = new ObjectMapper(); 13 Shop shop = null; 14 try { 15 shop = mapper.readValue(shopStr, Shop.class); 16 } catch (Exception e) { 17 modelMap.put("success", false); 18 modelMap.put("errMsg", e.getMessage()); 19 return modelMap; 20 } 21 CommonsMultipartFile shopImg = null; 22 CommonsMultipartResolver commonsMultipartResolver = new CommonsMultipartResolver( 23 request.getSession().getServletContext()); 24 // 如果文件上傳有值的話 25 if (commonsMultipartResolver.isMultipart(request)) { 26 MultipartHttpServletRequest multipartHttpServletRequest = (MultipartHttpServletRequest) request; 27 shopImg = (CommonsMultipartFile) multipartHttpServletRequest.getFile("shopImg"); 28 } else { 29 modelMap.put("success", false); 30 modelMap.put("errMsg", "上傳圖片不能為空"); 31 return modelMap; 32 } 33 // 2.註冊店鋪 34 if (shop != null && shopImg != null) { 35 36 PersonInfo owner = (PersonInfo) request.getSession().getAttribute("user"); 37 38 shop.setOwner(owner); 39 ShopExecution se; 40 try { 41 se = shopService.addShop(shop, shopImg.getInputStream(), shopImg.getOriginalFilename()); 42 if (se.getState() == ShopStateEnum.CHECK.getState()) { 43 modelMap.put("success", true); 44 // 需要在session中保存一個店鋪列表 就是用戶可操作的店鋪 45 @SuppressWarnings("unchecked") 46 List<Shop> shopList = (List<Shop>) request.getSession().getAttribute("shopList"); 47 if (shopList == null || shopList.size() == 0) { 48 shopList = new ArrayList<Shop>(); 49 50 } 51 shopList.add(se.getShop()); 52 request.getSession().setAttribute("shopList", shopList); 53 54 } else { 55 modelMap.put("errMsg", se.getStateInfo()); 56 } 57 } catch (ShopOperationException e) { 58 modelMap.put("success", false); 59 modelMap.put("errMsg", e.getMessage()); 60 } catch (IOException e) { 61 modelMap.put("success", false); 62 modelMap.put("errMsg", e.getMessage()); 63 } 64 65 return modelMap; 66 } else { 67 modelMap.put("success", false); 68 modelMap.put("errMsg", "請輸入店鋪信息"); 69 return modelMap; 70 } 71 // 3.返回結果 72 }View Code
shop--6.店鋪註冊--店鋪註冊之Controller層（邏輯）