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我正在使用Spring的@ExceptionHandler註釋來捕獲我的控制器中的異常。從spring異常處理程序中讀取httprequest內容
一些請求將POST數據作爲純XML字符串寫入請求正文，我想讀取該數據以便記錄異常。 問題是，當我在異常處理程序中請求inputstream並嘗試從它讀取時，流返回-1（空）。
異常處理程序的簽名是：
@ExceptionHandler(Throwable.class)
public ModelAndView exception(HttpServletRequest request, HttpServletResponse response, HttpSession session, Throwable arff)
有什麼想法？有沒有辦法訪問請求體？
我的控制器：
@Controller
@RequestMapping("/user/**")
public class UserController {
static final Logger LOG = LoggerFactory.getLogger(UserController.class);
@Autowired
IUserService userService;
@RequestMapping("/user")
public ModelAndView getCurrent() {
return new ModelAndView("user","response", userService.getCurrent());
}
@RequestMapping("/user/firstLogin")
public ModelAndView firstLogin(HttpSession session) {
userService.logUser(session.getId());
userService.setOriginalAuthority();
return new ModelAndView("user","response", userService.getCurrent());
}
@RequestMapping("/user/login/failure")
public ModelAndView loginFailed() {
LOG.debug("loginFailed()");
Status status = new Status(-1,"Bad login");
return new ModelAndView("/user/login/failure", "response",status);
}
@RequestMapping("/user/login/unauthorized")
public ModelAndView unauthorized() {
LOG.debug("unauthorized()");
Status status = new Status(-1,"Unauthorized.Please login first.");
return new ModelAndView("/user/login/unauthorized","response",status);
}
@RequestMapping("/user/logout/success")
public ModelAndView logoutSuccess() {
LOG.debug("logout()");
Status status = new Status(0,"Successful logout");
return new ModelAndView("/user/logout/success", "response",status);
}
@RequestMapping(value = "/user/{id}", method = RequestMethod.POST)
public ModelAndView create(@RequestBody UserDTO userDTO, @PathVariable("id") Long id) {
return new ModelAndView("user", "response", userService.create(userDTO, id));
}
@RequestMapping(value = "/user/{id}", method = RequestMethod.GET)
public ModelAndView getUserById(@PathVariable("id") Long id) {
return new ModelAndView("user", "response", userService.getUserById(id));
}
@RequestMapping(value = "/user/update/{id}", method = RequestMethod.POST)
public ModelAndView update(@RequestBody UserDTO userDTO, @PathVariable("id") Long id) {
return new ModelAndView("user", "response", userService.update(userDTO, id));
}
@RequestMapping(value = "/user/all", method = RequestMethod.GET)
public ModelAndView list() {
return new ModelAndView("user", "response", userService.list());
}
@RequestMapping(value = "/user/allowedAccounts", method = RequestMethod.GET)
public ModelAndView getAllowedAccounts() {
return new ModelAndView("user", "response", userService.getAllowedAccounts());
}
@RequestMapping(value = "/user/changeAccount/{accountId}", method = RequestMethod.GET)
public ModelAndView changeAccount(@PathVariable("accountId") Long accountId) {
Status st = userService.changeAccount(accountId);
if (st.code != -1) {
return getCurrent();
}
else {
return new ModelAndView("user", "response", st);
}
}
/*
@RequestMapping(value = "/user/logout", method = RequestMethod.GET)
public void perLogout(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
userService.setOriginalAuthority();
response.sendRedirect("/marketplace/user/logout/spring");
}
*/
@ExceptionHandler(Throwable.class)
public ModelAndView exception(HttpServletRequest request, HttpServletResponse response, HttpSession session, Throwable arff) {
Status st = new Status();
try {
Writer writer = new StringWriter();
byte[] buffer = new byte[1024];
//Reader reader2 = new BufferedReader(new InputStreamReader(request.getInputStream()));
InputStream reader = request.getInputStream();
int n;
while ((n = reader.read(buffer)) != -1) {
writer.toString();
}
String retval = writer.toString();
retval = "";
} catch (IOException e) {
e.printStackTrace();
}
return new ModelAndView("profile", "response", st);
}
}
謝謝
感謝您的回覆，我仍然無法閱讀請求正文。沒有拋出異常，只是讀者返回null意味着它是空的。也許我在春天錯過了關於異常處理程序的事情。如何在哪裏閱讀請求？ – 2011-03-07 09:06:57
我剛剛將您的代碼（通過更正）複製到新項目中。我通過enctype =「multipart/form-data」和輸入類型=「file」的靜態html表格來調用控制器來上傳文件。我添加了一個RequestMapping註釋和相應的方法，只拋出一個RuntimeException。在異常處理程序方法中，我可以記錄通過表單上傳的整個文件。當你進入控制器或者已經通過對getInputStream（）的另一個調用使用時，似乎輸入流是空的。什麼版本的Spring？ – javanna 2011-03-07 09:33:58
@Noam Nevo有什麼消息嗎？ :-) – javanna 2011-03-08 17:20:44