问题描述

好吧，请求主体位于HttpServletRequest中。

您可以通过执行以下操作来访问RAW请求正文：

String body = request.getReader().lines().collect(Collectors.joining(System.lineSeparator()));

从异常处理程序方法。（使用Java 8）。

然后，您可以将主体字符串解析为POJO。

注意，avobe答案无效。发生这种情况是因为在解析正文（使用@RequestBody）时，http连接流已关闭，因此无法再次访问请求正文。如何通过控制器方法将属性直接注入httpRequest，然后在Exception处理程序中访问值：

@RestController
@RequestMapping(ApiVersion.V1.prefix)
public class BatchController {
    @PostMapping("/batch")
    public @ResponseBody BatchResponse runBatch(@RequestBody BatchRequest batchRequest, HttpServletRequest request) throws IOException {
        System.out.println(batchRequest.getName());
        request.setAttribute("batchRequest" , batchRequest);
        throw new IllegalArgumentException("Some error");
    }

    @ExceptionHandler(IllegalArgumentException.class)
    public @ResponseBody BatchResponse handle(HttpServletRequest request) {
        BatchRequest batchRequest = (BatchRequest) request.getAttribute("batchRequest");
        System.out.println("handling exception");
        return new BatchResponse(batchRequest.getName());
    }
}

希望这可以帮助

解决方法

@Controller
@RequestMapping("/foo")
public class FooController {
    private final FooService fooService;

    @PostMapping("/bar")
    @ResponseBody
    public BarObject doSomething(@RequestBody final FooContext context) 
    {
        return fooService.doSomething(context);
    }
}

@ControllerAdvice
public class ExceptionController {

    private final Logger log = LoggerFactory.getLogger(ExceptionController.class);

    @ResponseStatus(HttpStatus.BAD_REQUEST)
    @ExceptionHandler(Exception.class)
    @ResponseBody
    public ErrorMessage handleException(final HttpServletRequest request,final Exception exception) {
        //Retrieve request data 
        //request.getQueryString() 
        // How to get POST data if we cannot access @RequestBody?)
        log.error(request.getRequestURI(),exception);
        return new ErrorMessage(request.getRequestURI(),exception.getLocalizedMessage());
}