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@ -28,9 +28,12 @@ import org.springframework.web.bind.MissingServletRequestParameterException;
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import org.springframework.web.bind.annotation.ExceptionHandler;
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import org.springframework.web.bind.annotation.RestControllerAdvice;
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import org.springframework.web.method.annotation.MethodArgumentTypeMismatchException;
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import org.springframework.web.multipart.MaxUploadSizeExceededException;
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import org.springframework.web.multipart.MultipartException;
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import org.springframework.web.servlet.NoHandlerFoundException;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import javax.validation.ConstraintViolation;
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import javax.validation.ConstraintViolationException;
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import javax.validation.ValidationException;
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@ -385,4 +388,90 @@ public class GlobalExceptionHandler {
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return null;
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}
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/**
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* 处理文件上传大小超出限制异常
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*/
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@ExceptionHandler(MaxUploadSizeExceededException.class)
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public CommonResult<String> handleMaxUploadSizeExceededException(
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MaxUploadSizeExceededException e,
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HttpServletRequest request,
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HttpServletResponse response) {
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log.error("文件上传大小超出限制: {}", request.getRequestURI(), e);
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// 从异常信息中提取实际大小和限制大小
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String errorMessage = extractSizeInfo(e);
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return CommonResult.error(400,
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String.format("文件大小超出限制。%s 请上传小于500MB的文件", errorMessage)
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);
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}
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/**
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* 处理 Multipart 异常
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*/
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@ExceptionHandler(MultipartException.class)
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public CommonResult<String> handleMultipartException(
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MultipartException e,
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HttpServletRequest request) {
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log.error("文件上传异常: {}", request.getRequestURI(), e);
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if (e.getMessage().contains("SizeLimitExceededException")) {
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return CommonResult.error(400, "文件大小超出限制，请上传小于500MB的文件");
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} else if (e.getMessage().contains("FileSizeLimitExceededException")) {
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return CommonResult.error(400, "单个文件大小超出限制，请上传小于500MB的文件");
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} else if (e.getMessage().contains("临时文件夹")) {
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return CommonResult.error(400, "临时文件夹不可用，请检查磁盘空间");
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}
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return CommonResult.error(400, "文件上传失败：" + e.getMessage());
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}
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/**
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* 从异常信息中提取大小信息
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*/
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private String extractSizeInfo(MaxUploadSizeExceededException e) {
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String message = e.getMessage();
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try {
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// 解析异常信息，提取大小数据
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if (message.contains("exceeds the configured maximum")) {
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// 格式: ... size (367254613) exceeds the configured maximum (104857600)
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String sizePart = message.substring(message.indexOf("size (") + 6);
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String actualSizeStr = sizePart.substring(0, sizePart.indexOf(")"));
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String maxPart = message.substring(message.indexOf("maximum (") + 9);
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String maxSizeStr = maxPart.substring(0, maxPart.indexOf(")"));
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long actualSize = Long.parseLong(actualSizeStr);
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long maxSize = Long.parseLong(maxSizeStr);
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return String.format("实际大小: %s, 限制大小: %s",
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formatFileSize(actualSize),
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formatFileSize(maxSize)
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);
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}
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} catch (Exception ex) {
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log.error("解析文件大小信息失败", ex);
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}
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return "请检查文件大小";
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}
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/**
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* 格式化文件大小
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*/
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private String formatFileSize(long size) {
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if (size < 1024) {
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return size + " B";
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} else if (size < 1024 * 1024) {
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return String.format("%.2f KB", size / 1024.0);
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} else if (size < 1024 * 1024 * 1024) {
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return String.format("%.2f MB", size / (1024.0 * 1024.0));
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} else {
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return String.format("%.2f GB", size / (1024.0 * 1024.0 * 1024.0));
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}
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}
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}
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liutao
6 days ago