feat:对HttpRequestMethodNotSupportedException异常的拦截友好返回

src/main/java/com/iflytop/gd/common/handler/GlobalExceptionHandler.java

@@ -3,9 +3,11 @@ package com.iflytop.gd.common.handler;
 import com.iflytop.gd.common.exception.AppException;
 import com.iflytop.gd.common.result.Result;
 import com.iflytop.gd.common.result.ResultCode;
+import jakarta.servlet.http.HttpServletRequest;
 import jakarta.validation.ConstraintViolationException;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.validation.BindException;
+import org.springframework.web.HttpRequestMethodNotSupportedException;
 import org.springframework.web.bind.MethodArgumentNotValidException;
 import org.springframework.web.bind.annotation.ExceptionHandler;
 import org.springframework.web.bind.annotation.RestControllerAdvice;
@@ -16,6 +18,20 @@ import java.util.stream.Collectors;
 @RestControllerAdvice
 public class GlobalExceptionHandler {
 
+    @ExceptionHandler(HttpRequestMethodNotSupportedException.class)
+    public Result<?> handleMethodNotSupported(HttpRequestMethodNotSupportedException ex, HttpServletRequest request) {
+        String method = request.getMethod();
+        String uri = request.getRequestURI();
+        String allowed = ex.getSupportedHttpMethods() != null
+                ? ex.getSupportedHttpMethods().toString()
+                : "[]";
+        String msg = String.format(
+                "请求方法 '%s' 不支持 (URL: %s)。支持的方法有：%s",
+                method, uri, allowed);
+        log.error(msg, ex);
+        return Result.failed(ResultCode.METHOD_NOT_ALLOWED.getCode(), msg);
+    }
+
     // 1) JSON Body 校验失败
     @ExceptionHandler(MethodArgumentNotValidException.class)
     public Result<?> handleBodyValid(MethodArgumentNotValidException ex) {