不会调用@ControllerAdvice异常处理程序方法 [英] @ControllerAdvice exception handler method are not get called

问题描述

我有以下控制器类

package com.java.rest.controllers;
@Controller
@RequestMapping("/api")
public class TestController {

@Autowired
private VoucherService voucherService;


@RequestMapping(value = "/redeemedVoucher", method = { RequestMethod.GET })
@ResponseBody
public ResponseEntity redeemedVoucher(@RequestParam("voucherCode") String voucherCode) throws Exception {
    if(voucherCode.equals( "" )){
        throw new MethodArgumentNotValidException(null, null);
    }
    Voucher voucher=voucherService.findVoucherByVoucherCode( voucherCode );
    if(voucher!= null){
        HttpHeaders headers = new HttpHeaders();
        headers.add("Content-Type", "application/json; charset=utf-8");
        voucher.setStatus( "redeemed" );
        voucher.setAmount(new BigDecimal(0));
        voucherService.redeemedVoucher(voucher);
        return new ResponseEntity(voucher, headers, HttpStatus.OK);

    }
    else{
        throw new ClassNotFoundException();
    }
};

}

对于异常处理，我正在使用Spring3.2建议处理程序，如下所示

And for exception handling I am using Spring3.2 advice handler as follow

package com.java.rest.controllers;


@ControllerAdvice
public class VMSCenteralExceptionHandler extends ResponseEntityExceptionHandler{

@ExceptionHandler({
    MethodArgumentNotValidException.class
})
public ResponseEntity<String> handleValidationException( MethodArgumentNotValidException methodArgumentNotValidException ) {
    return new ResponseEntity<String>(HttpStatus.OK );
}

 @ExceptionHandler({ClassNotFoundException.class})
        protected ResponseEntity<Object> handleNotFound(ClassNotFoundException ex, WebRequest request) {
            String bodyOfResponse = "This Voucher is not found";
            return handleExceptionInternal(null, bodyOfResponse,
              new HttpHeaders(), HttpStatus.NOT_FOUND , request);
        }

}

我已将XML bean定义定义为

I have defined XML bean definition as

<context:component-scan base-package="com.java.rest" />

从控制器引发的异常未由控制器建议处理程序处理.我已经搜索了几个小时，但找不到任何参考来说明为什么会发生这种情况. 我按照所述> ://www.baeldung.com/2013/01/31/exception-handling-for-rest-with-spring-3-2/此处.

Exception thrown from controller are not handled by controller advice handler. I have googled for hours but could not find any reference why it is happening. I followed as described http://www.baeldung.com/2013/01/31/exception-handling-for-rest-with-spring-3-2/ here.

如果有人知道，请告诉我们处理程序为什么不处理异常.

If anybody knows about please let know why handler is not handling exception.

推荐答案

我找到了上述问题的解决方案.实际上@ControllerAdvice需要XML文件中的MVC名称空间声明.或者我们可以将@EnableWebMvc与@ControllerAdvice批注一起使用.

I found the solution for the above problem. Actually @ControllerAdvice needs MVC namespace declaration in XML file. Or we can use @EnableWebMvc with @ControllerAdvice annotation.

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