Question

尝试设置全局异常处理程序以响应一般错误响应时，出现以下错误：

@RestControllerAdvice
class GlobalExceptionHandler {

    @ExceptionHandler(HttpClientErrorException::class)
    @ResponseStatus(HttpStatus.BAD_REQUEST)
    fun handleClientException(exception: HttpClientErrorException): ErrorDto {
        // do something with client errors, like logging
        return ErrorDto(errorMessage)
    }

    @ExceptionHandler(Exception::class)
    @ResponseStatus(HttpStatus.INTERNAL_SERVER_ERROR)
    fun handleServerException(exception: HttpClientErrorException): ErrorDto {
        // do some other thing with server errors, like alerts
        return ErrorDto(errorMessage)
    }

}

data class ErrorDto(val message: String)

@RestController
class DemoController {
    @GetMapping("/error")
    @ResponseBody
    fun error(): ErrorDto {
        throw RuntimeException("test")
    }
}

和错误：

ExceptionHandlerExceptionResolver : Failure in @ExceptionHandler
public ErrorDto
GlobalExceptionHandler.handleServerException(org.springframework.web.client.HttpClientErrorException)

java.lang.IllegalStateException: Could not resolve parameter [0] in
public ErrorDto
GlobalExceptionHandler.handleServerException(org.springframework.web.client.HttpClientErrorException):
No suitable resolver    at
org.springframework.web.method.support.InvocableHandlerMethod.getMethodArgumentValues(InvocableHandlerMethod.java:163)
    at
org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:134)
    at
org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:102)
    at
(...)
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)

这不是spring mvc controller error java.lang.IllegalStateException: No suitable resolver for argument [0]的重复，这是一个Hibernate问题。我不是在这里使用Hibernate。

Answer 1

就我而言，这是一个复制粘贴错误。

我抛出了RuntimeException，但是我将异常处理程序配置为支持HttpClientErrorException：

fun handleServerException(exception: HttpClientErrorException)

在这种情况下，解决方法是在@ExceptionHandler批注中使用与方法参数相同的Exception类：

@ExceptionHandler(Exception::class) // <-- must match method parameter
@ResponseStatus(HttpStatus.INTERNAL_SERVER_ERROR)
fun handleServerException(exception: Exception): ErrorDto { // <-- fix here
    // do some other thing with server errors, like alerts
    return ErrorDto(errorMessage)
}

Spring GlobalExceptionHandler：java.lang.IllegalStateException：无法解析参数[0] ...没有合适的解析器

1 个答案: