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我正在使用Spring的@ExceptionHandler注释来捕获我的控制器中的异常。从spring异常处理程序中读取httprequest内容
一些请求将POST数据作为纯XML字符串写入请求正文，我想读取该数据以便记录异常。 问题是，当我在异常处理程序中请求inputstream并尝试从它读取时，流返回-1（空）。
异常处理程序的签名是：
@ExceptionHandler(Throwable.class)
public ModelAndView exception(HttpServletRequest request, HttpServletResponse response, HttpSession session, Throwable arff)
有什么想法？有没有办法访问请求体？
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);
}
}
谢谢
感谢您的回复，我仍然无法阅读请求正文。没有抛出异常，只是读者返回null意味着它是空的。也许我在春天错过了关于异常处理程序的事情。如何在哪里阅读请求？ – 2011-03-07 09:06:57
我刚刚将您的代码（通过更正）复制到新项目中。我通过enctype =“multipart/form-data”和输入类型=“file”的静态html表格来调用控制器来上传文件。我添加了一个RequestMapping注释和相应的方法，只抛出一个RuntimeException。在异常处理程序方法中，我可以记录通过表单上传的整个文件。当你进入控制器或者已经通过对getInputStream（）的另一个调用使用时，似乎输入流是空的。什么版本的Spring？ – javanna 2011-03-07 09:33:58
@Noam Nevo有什么消息吗？ :-) – javanna 2011-03-08 17:20:44