鐜??鎼?缓濂藉悗灏辨槸Controller鐨勭紪鍐欎簡
1 鍙?互閫氳繃缁ф壙AbstractController锛屽疄鐜皃rotected ModelAndView handleRequestInternal(HttpServletRequest req, HttpServletResponse resp)鏂规硶锛岃?闂?繖涓狢ontroller锛岄粯璁よ?闂?繖涓?柟娉曘?愭?鏂规硶灏辩浉褰揝trust2鐨別xecute()鏂规硶銆?/p>
鍦╗servlet-name]-servlet.xml涓?敞鍐岃繖涓猙ean锛?lt;bean name="xxx.xxx" class = "杩欎釜绫荤殑鍏ㄩ檺瀹氬悕" />
閫氳繃url xxx.xxx璁块棶杩欎釜controller
2 @Controller娉ㄨВ锛屽疄闄呭紑鍙戜腑鍩烘湰涓婁篃閮芥槸杩欑?鏂瑰紡
聽2.1 鍩烘湰褰㈠紡
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@RequestMapping(value="/findUser",method=RequestMethod.GET)public String findUser(@RequestParam String username){ System.out.println("username is "+username); return "example"; //瑙嗗浘鍚嶇О}[email protected]?鍚庨潰蹇呴』甯?sername锛屽惁鍒欎細鎶ラ敊404锛屽?鏋滀笉鍔犺繖涓?敞瑙ｄ篃鍙?互璧峰埌鍚屾牱 聽 聽鐨勪綔鐢?瀹归敊鎬ц?楂樸??/p>
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聽return 杩斿洖鐨勫氨鏄??鍥惧悕绉?锛屼細鏍规嵁[dispatcherservlet-name]-servlet.xml涓璻esolver璺宠浆鍒板?搴旂殑瑙嗗浘銆?/p>
聽2.2 杩斿洖ModelAndView
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@RequestMapping(value="/findUser",method = RequestMethod.POST)public ModelAndView findUser(User user){ ModelAndView mv = new ModelAndView("user"); //杩斿洖ModelAndView褰㈠紡,璇曞浘鍚嶇О鍦ㄨ繖閲屽啓 mv.addObject("user", user); //閫氳繃"user"鍙栧?? mv.addObject(user);//閫氳繃user绫诲瀷鍙栧?? return mv; //杩斿洖ModelAndView}聽 鍦╱ser.jsp涓?彲浠ュ彇鍒皍ser瀵硅薄
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聽 2.3 鍏充簬Bean涓?湁Date绫诲瀷鐨勫睘鎬? [email protected]
@RequestMapping("/todate")public ModelAndView toDate(Date date){ ModelAndView mv = new ModelAndView("user"); mv.addObject("today", "2016-04-19"); mv.addObject(date); return mv;}//鐢变簬璇锋眰杩囨潵鐨剈rl涓?殑鍙傛暟閮芥槸String绫诲瀷锛屾墍浠ュ綋Bean涓?湁Date鐨勬椂鍊欎細鑷?姩灏哠tring杞?崲涓篋ate@InitBinderpublic void initBinder(ServletRequestDataBinder binder){ binder.registerCustomEditor(Date.class, new CustomDateEditor(new SimpleDateFormat("yyyy-MM-dd"), true));}聽 聽3 controller杩斿洖鏁版嵁缁橨SP
聽 聽3.1聽閫氳繃Map鍚戦〉闈?紶閫掑弬鏁?/p>
聽 聽 聽 聽聽
@RequestMapping(value="/show",method=RequestMethod.GET)public String showUser(Map<String,Object> map){ User user = new User("tomcat","tomcat",11); map.put("user", user); return "show";} @RequestMapping("/getuser")public void getPerson(String username,PrintWriter pw){ pw.write("hello : "+username);}聽 聽 鍜屾櫘閫氭柟寮忎竴鏍? 绗?簩涓?柟娉曞拰Map鏂瑰紡杩斿洖鏁版嵁鏃犲叧锛岄『鎵嬭创涓婂幓
聽 聽 3.2 file upload锛?/p>
聽 聽 jsp椤甸潰锛?/p>
<form action="user/upload" method="post" enctype="multipart/form-data"> <input type="file" name="file"><br> type鍜宯ame閮藉繀椤绘槸file <input type="submit" value="submit"></form>
聽 聽controller涓?細
@RequestMapping("/upload")public ModelAndView uploadFile(HttpServletRequest req,ModelAndView mv) throws Exception{ logger.info(">>>>>>>>>涓婁紶鏂囦欢寮?濮?........"); MultipartHttpServletRequest mulReq = (MultipartHttpServletRequest)req; MultipartFile file = mulReq.getFile("file");//jsp涓璶ame="file" String originalFilename = file.getOriginalFilename(); String newFileName = originalFilename.substring(0,originalFilename.lastIndexOf('.')); SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmss"); FileOutputStream fos = new FileOutputStream("D:/app/"+newFileName+"_"+sdf.format(new Date())); //鏂囦欢瀛樺偍浣嶇疆 fos.write(file.getBytes()); fos.flush(); fos.close(); logger.error(">>>>>>>>>涓婁紶鏂囦欢鍑洪敊......."); return mv;}聽 聽4 閫氳繃Model 灏嗘暟鎹?繑鍥炵粰jsp
@RequestMapping(value="/list",method=RequestMethod.GET)public String listUser(Model model){ logger.info(">>>>>>>>>杩涘叆userList鏂规硶......"); model.addAttribute("users", users); return "user/list";}jsp涓?/p>
<c:forEach items="${users }" var="user"> <a href="${pageContext.request.contextPath }/user/${user.value.username }">${user.value.username }</a>---${user.value.pwd }---${user.value.age }<br></c:forEach>5 springmvc鐨剅estful褰㈠紡 @PathVariable娉ㄨВ
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@RequestMapping(value="/{username}",method=RequestMethod.GET)public String showUser(@PathVariable String username,Model model){ logger.info(">>>>>>>>>杩涘叆showUser鏂规硶......"); model.addAttribute("user", users.get(username)); logger.error(">>>>>>>>>鏌ヨ?鐢ㄦ埛澶辫触........."); return "user/show";}瑕佸湪controller涓?殑鑾峰彇request銆乺esponse銆乻esison 鍙?渶瑕佷互褰㈠弬鐨勫疄琛屽紩鍏ュ嵆鍙?/p>
鏂囦腑鐨勬棩蹇楀彲浠ヤ笉绠★紝鏄?殢鎵嬪姞涓婂幓鐨?娌℃湁瀹為檯鎰忎箟
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