SpringMVC：常用关键字

	关键字	说明	备注	链接
url映射	@RequestMapping	url映射	@RequestMapping(value="/editItems",method={RequestMethod.POST,RequestMethod.GET})	⇨
	@PathVaraible	动态URI、RESTful	@RequestMapping(value = "/fetch/{id:[a-z]+}/{name} ", method = RequestMethod.GET) public String getDynamicUriValueRegex(@PathVariable("name") String name) {}	⇨ ⇨
	@GetMapping	RequestMapping的组合注解	=@RequestMapping(method =RequestMethod.GET) @PostMapping、@PutMapping、@DeleteMapping、@PatchMapping类似	⇨
参数绑定	@RequestParam	绑定request参数到方法形参	public String editItems(@RequestParam(value="id",required=true,defaultValue="10001") Integer items_id)throws Exception {}	⇨
Validation	@Validated		public String editItemsSubmit(Integer id,@Validated(value = { ValidGroup1.class}) ItemsCustom itemsCustom,BindingResult bindingResult) throws Exception{}	⇨
	@NotNull等	校验规则	@NotNull(message="{item.price.isNull}",groups= {ValidGroup1.class})	⇨
数据回显	Model	数据回显（简单类型、pojo回显）	@RequestMapping(value="/editItems",method={RequestMethod.GET}) public String editItems(Model model,Integer id)throws Exception{ //传入的id重新放到request域 model.addAttribute("id", id); } @RequestMapping("/editItemSubmit") public String editItemSubmit(Model model,ItemsCustom itemsCustom){ // 可以直接使用model将提交pojo回显到页面 model.addAttribute("items", itemsCustom); }	⇨ ⇨
	@ModelAttribute	pojo类型回显、方法返回值回显	@RequestMapping("/editItemSubmit") public String editItemSubmit(Integer id,@ModelAttribute("item") ItemsCustom itemsCustom){} @ModelAttribute("itemtypes") public Map<String, String> getItemTypes() { Map<String, String> itemTypes = new HashMap<String, String>(); itemTypes.put("101", "数码"); itemTypes.put("102", "母婴"); return itemTypes; }	⇨ ⇨
json数据交互	@RequestBody	将请求的json串转成pojo对象，进行参数绑定。	@RequestMapping("/editItemSubmit_RequestJson") public @ResponseBody Items editItemSubmit_RequestJson(@RequestBody Items items) throws Exception {}	⇨
	@ResponseBody	将pojo对象转成json，进行输出。