RequestBodyPlugin can be extended multi times

fizz-core/src/main/java/we/fizz/input/PathMapping.java

@@ -231,7 +231,7 @@ public class PathMapping {
 					obj = cast(obj, type, path);
 				}
 			} catch (Exception e) {
-				e.printStackTrace();
+				// e.printStackTrace();
 				throw new FizzRuntimeException(String.format("path mapping errer: %s , path mapping data: %s %s", e.getMessage(), type, path), e);
 			}
 		}
@@ -298,7 +298,7 @@ public class PathMapping {
 			}
 			return obj;
 		} catch (Exception e) {
-			e.printStackTrace();
+			// e.printStackTrace();
 			throw new FizzRuntimeException(String.format("failed to cast %s to %s, JSON path expression: %s, error: %s", obj, type, path, e.getMessage()), e);
 		}
 	}

fizz-core/src/main/java/we/plugin/requestbody/RequestBodyPlugin.java

@@ -37,7 +37,6 @@ import java.util.Map;
 
 /**
  * Your plugin P can extend this class and override the doFilter method, then you can modify the request later.
- * warn: P and @Component(RequestBodyPlugin.REQUEST_BODY_PLUGIN) can't be applied at the same time.
  *
  * @author hongqiaowei
  */
@@ -53,6 +52,9 @@ public class RequestBodyPlugin implements FizzPluginFilter {
     public Mono<Void> filter(ServerWebExchange exchange, Map<String, Object> config) {
 
         ServerHttpRequest req = exchange.getRequest();
+        if (req instanceof FizzServerHttpRequestDecorator) {
+            return doFilter(exchange, config);
+        }
         return
                 NettyDataBufferUtils.join(req.getBody()).defaultIfEmpty(NettyDataBufferUtils.EMPTY_DATA_BUFFER)
                         .flatMap(