SpringMVC入门很简单之异常处理

package com.demo.web.controllers; import javax.servlet.http.HttpServletRequest; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.ServletRequestUtils; import org.springframework.web.bind.annotation.CookieValue; import org.springframework.web.bind.annotation.ModelAttribute; import org.springframework.web.bind.annotation.RequestBody; import org.springframework.web.bind.annotation.RequestHeader; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.RequestParam; import org.springframework.web.bind.annotation.ResponseBody; import org.springframework.web.bind.annotation.SessionAttributes; import org.springframework.web.bind.support.SessionStatus; import org.springframework.web.multipart.MultipartFile; import org.springframework.web.multipart.MultipartHttpServletRequest; import org.springframework.web.servlet.ModelAndView; import com.demo.web.models.AccountModel; @Controller @RequestMapping(value = "/databind") @SessionAttributes(value = "sessionaccountmodel") public class DataBindController { @RequestMapping(value="/parambind", method = {RequestMethod.GET}) public ModelAndView paramBind(){ ModelAndView modelAndView = new ModelAndView(); modelAndView.setViewName("parambind"); return modelAndView; } @RequestMapping(value="/parambind", method = {RequestMethod.POST}) public ModelAndView paramBind(HttpServletRequest request, @RequestParam("urlParam") String urlParam, @RequestParam("formParam") String formParam, @RequestParam("formFile") MultipartFile formFile){ //如果不用注解自动绑定，我们还可以像下面一样手动获取数据 String urlParam1 = ServletRequestUtils.getStringParameter(request, "urlParam", null); String formParam1 = ServletRequestUtils.getStringParameter(request, "formParam", null); MultipartFile formFile1 = ((MultipartHttpServletRequest) request).getFile("formFile"); ModelAndView modelAndView = new ModelAndView(); modelAndView.addObject("urlParam", urlParam); modelAndView.addObject("formParam", formParam); modelAndView.addObject("formFileName", formFile.getOriginalFilename()); modelAndView.addObject("urlParam1", urlParam1); modelAndView.addObject("formParam1", formParam1); modelAndView.addObject("formFileName1", formFile1.getOriginalFilename()); modelAndView.setViewName("parambindresult"); return modelAndView; } @RequestMapping(value="/modelautobind", method = {RequestMethod.GET}) public String modelAutoBind(HttpServletRequest request, Model model){ model.addAttribute("accountmodel", new AccountModel()); return "modelautobind"; } /*@RequestMapping(value="/modelautobind", method = {RequestMethod.POST}) public String modelAutoBind(HttpServletRequest request, Model model, AccountModel accountModel){ model.addAttribute("accountmodel", accountModel); return "modelautobindresult"; }*/ @RequestMapping(value="/modelautobind", method = {RequestMethod.POST}) public String modelAutoBind(HttpServletRequest request, @ModelAttribute("accountmodel") AccountModel accountModel){ return "modelautobindresult"; } //@CookieValue Test @RequestMapping(value="/cookiebind", method = {RequestMethod.GET}) public String cookieBind(HttpServletRequest request, Model model, @CookieValue(value="JSESSIONID", defaultValue="") String jsessionId){ model.addAttribute("jsessionId", jsessionId); return "cookiebindresult"; } //@RequestHeader Test @RequestMapping(value="/requestheaderbind", method = {RequestMethod.GET}) public String requestHeaderBind(HttpServletRequest request, Model model, @RequestHeader(value="User-Agent", defaultValue="") String userAgent){ model.addAttribute("userAgent", userAgent); return "requestheaderbindresult"; } //@SessionAttributes Test @ModelAttribute("sessionaccountmodel") public AccountModel initAccountModel(){ return new AccountModel(); } @RequestMapping(value="/usernamebind", method = {RequestMethod.GET}) public String userNameBind( Model model, AccountModel accountModel){ model.addAttribute("sessionaccountmodel", new AccountModel()); return "usernamebind"; } @RequestMapping(value="/usernamebind", method = {RequestMethod.POST}) public String userNameBindPost( @ModelAttribute("sessionaccountmodel") AccountModel accountModel){ //重定向到密码绑定测试 return "redirect:passwordbind"; } @RequestMapping(value="/passwordbind", method = {RequestMethod.GET}) public String passwordBind(@ModelAttribute("sessionaccountmodel") AccountModel accountModel){ return "passwordbind"; } @RequestMapping(value="/passwordbind", method = {RequestMethod.POST}) public String passwordBindPost(@ModelAttribute("sessionaccountmodel") AccountModel accountModel, SessionStatus status){ //销毁@SessionAttributes中value指定名称的数据 status.setComplete(); //显示绑定结果 return "sessionmodelbindresult"; } //@RequestBody Test @RequestMapping(value="/requestbodybind", method = {RequestMethod.GET}) public String requestBodyBind(Model model){ model.addAttribute("accountmodel", new AccountModel()); return "requestbodybind"; } @RequestMapping(value="/requestbodybind", method = {RequestMethod.POST}) public @ResponseBody AccountModel requestBodyBind(@RequestBody AccountModel accountModel){ return accountModel; } }