RedirectAttributes对象addFlashAttribute()的使用

[java] view plain copy print ? <span style=“font-size:14px;”>  </span>   <span style="font-size:14px;"> </span> [java] view plain copy print ? <strong><span style=“font-size:14px;”>RedirectAttributes对象addFlashAttribute()的使用</span></strong>   <strong><span style="font-size:14px;">RedirectAttributes对象addFlashAttribute()的使用</span></strong> [java] view plain copy print ? <span style=“font-size:14px;”><span style=“font-size:18px;”>@RequestMapping(value=“/edit/{id}”,method= RequestMethod.GET)      public String edit(@PathVariable(value=“id”) int id,ModelMap map,RedirectAttributes redirectAttributes) {          PartsChange change = partsChangeService.findOne(id);          PartsChangeFB fb = PartsChangeFB.toFB(change);          if(!PartsChange.STATUS_NEW.equals(fb.getStatus())){              redirectAttributes.addFlashAttribute(”errorInfo”,“不能修改！”);              return “redirect:/partsChange”;          }          List<PartsChangeFile> fileList = partsChangeFileService.findByChangeId(id);          map.addAttribute(”partsChange”, fb);          map.addAttribute(”fileList”, fileList);          return “partsChange/editInfo”;      }</span></span>   <span style="font-size:14px;"><span style="font-size:18px;">@RequestMapping(value="/edit/{id}",method= RequestMethod.GET) public String edit(@PathVariable(value="id") int id,ModelMap map,RedirectAttributes redirectAttributes) { PartsChange change = partsChangeService.findOne(id); PartsChangeFB fb = PartsChangeFB.toFB(change); if(!PartsChange.STATUS_NEW.equals(fb.getStatus())){ redirectAttributes.addFlashAttribute("errorInfo","不能修改！"); return "redirect:/partsChange"; } List<PartsChangeFile> fileList = partsChangeFileService.findByChangeId(id); map.addAttribute("partsChange", fb); map.addAttribute("fileList", fileList); return "partsChange/editInfo"; }</span></span>

ModelMap对象addAttribute()的使用

[java] view plain copy print ? <span style=“font-size:14px;”><span style=“font-size:14px;”>@RequestMapping(value = “/save”, method = RequestMethod.POST)      public String save(@ModelAttribute @Valid EquipmentFB equipmentFB, BindingResult result, ModelMap map) {          if (result.hasErrors()) {              map.addAttribute(”message”, ErrorUtils.fetchAllErrorMessages(result));              if(equipmentFB.getEquipTypeId() != null && equipmentFB.getEquipTypeId() != 0){                  EquipType equipType = equipTypeService.findOne(equipmentFB.getEquipTypeId());                  equipmentFB.setEquipTypeName(equipType.getName());              }              map.addAttribute(”equipment”, equipmentFB);              return “/nbs/equipment/edit”;          }          String error = ”“;                    if(StringUtils.isEmpty(equipmentFB.getNumber())){              error = error +Constant.ERROR_EQUIPMENTCONTROLLER_NUMBER_CANNOT_NULL;          }                    if(StringUtils.isEmpty(equipmentFB.getName())){              error = error +Constant.ERROR_EQUIPMENTCONTROLLER_NAME_CANNOT_NULL;          }                    if(equipmentFB.getEquipTypeId() == null || equipmentFB.getEquipTypeId() == 0){              error = error +Constant.ERROR_EQUIPMENTCONTROLLER_TYPE_CANNOT_NULL;          }          if (!“”.equals(error)) {              map.addAttribute(”message”, error);              if(equipmentFB.getEquipTypeId() != null && equipmentFB.getEquipTypeId() != 0){                  EquipType equipType = equipTypeService.findOne(equipmentFB.getEquipTypeId());                  equipmentFB.setEquipTypeName(equipType.getName());              }              map.addAttribute(”equipment”, equipmentFB);              return “/nbs/equipment/edit”;          }            Equipment equipment = new Equipment();          if (equipmentFB.getId() != null) {              equipment = equipmentService.getEquipment(equipmentFB.getId());              // machineFB.setVersion(machineEntity.getVersion());//修改时不获得版本号，copy时会报错          }          BeanUtils.copyProperties(equipmentFB, equipment);          if (equipmentFB.getEquipTypeId() != null && equipmentFB.getEquipTypeId() != 0) {              equipment.setEquipType(equipTypeService.getEquipType(equipmentFB.getEquipTypeId()));          }          try {              equipmentService.save(equipment);          } catch (DataIntegrityViolationException e) {              map.addAttribute(”message”, Constant.MESSAGE_EQUIPMENTCONTROLLER_NUMBER_EXEIT);              if(equipmentFB.getEquipTypeId() != null && equipmentFB.getEquipTypeId() != 0){                  EquipType equipType = equipTypeService.findOne(equipmentFB.getEquipTypeId());                  equipmentFB.setEquipTypeName(equipType.getName());              }              map.addAttribute(”equipment”, equipmentFB);              return “/nbs/equipment/edit”;          }          return “redirect:/nbs/equipment”;        }</span></span>   <span style="font-size:14px;"><span style="font-size:14px;">@RequestMapping(value = "/save", method = RequestMethod.POST) public String save(@ModelAttribute @Valid EquipmentFB equipmentFB, BindingResult result, ModelMap map) { if (result.hasErrors()) { map.addAttribute("message", ErrorUtils.fetchAllErrorMessages(result)); if(equipmentFB.getEquipTypeId() != null && equipmentFB.getEquipTypeId() != 0){ EquipType equipType = equipTypeService.findOne(equipmentFB.getEquipTypeId()); equipmentFB.setEquipTypeName(equipType.getName()); } map.addAttribute("equipment", equipmentFB); return "/nbs/equipment/edit"; } String error = ""; if(StringUtils.isEmpty(equipmentFB.getNumber())){ error = error +Constant.ERROR_EQUIPMENTCONTROLLER_NUMBER_CANNOT_NULL; } if(StringUtils.isEmpty(equipmentFB.getName())){ error = error +Constant.ERROR_EQUIPMENTCONTROLLER_NAME_CANNOT_NULL; } if(equipmentFB.getEquipTypeId() == null || equipmentFB.getEquipTypeId() == 0){ error = error +Constant.ERROR_EQUIPMENTCONTROLLER_TYPE_CANNOT_NULL; } if (!"".equals(error)) { map.addAttribute("message", error); if(equipmentFB.getEquipTypeId() != null && equipmentFB.getEquipTypeId() != 0){ EquipType equipType = equipTypeService.findOne(equipmentFB.getEquipTypeId()); equipmentFB.setEquipTypeName(equipType.getName()); } map.addAttribute("equipment", equipmentFB); return "/nbs/equipment/edit"; } Equipment equipment = new Equipment(); if (equipmentFB.getId() != null) { equipment = equipmentService.getEquipment(equipmentFB.getId()); // machineFB.setVersion(machineEntity.getVersion());//修改时不获得版本号，copy时会报错 } BeanUtils.copyProperties(equipmentFB, equipment); if (equipmentFB.getEquipTypeId() != null && equipmentFB.getEquipTypeId() != 0) { equipment.setEquipType(equipTypeService.getEquipType(equipmentFB.getEquipTypeId())); } try { equipmentService.save(equipment); } catch (DataIntegrityViolationException e) { map.addAttribute("message", Constant.MESSAGE_EQUIPMENTCONTROLLER_NUMBER_EXEIT); if(equipmentFB.getEquipTypeId() != null && equipmentFB.getEquipTypeId() != 0){ EquipType equipType = equipTypeService.findOne(equipmentFB.getEquipTypeId()); equipmentFB.setEquipTypeName(equipType.getName()); } map.addAttribute("equipment", equipmentFB); return "/nbs/equipment/edit"; } return "redirect:/nbs/equipment"; }</span></span>