【修复】ApiAccessLogInterceptor 处理 request body 为 "" 空串的情况

yudao-framework/yudao-spring-boot-starter-web/src/main/java/cn/iocoder/yudao/framework/apilog/core/interceptor/ApiAccessLogInterceptor.java

@@ -43,7 +43,7 @@ public class ApiAccessLogInterceptor implements HandlerInterceptor {
                 log.info("[preHandle][开始请求 URL({}) 无参数]", request.getRequestURI());
             } else {
                 log.info("[preHandle][开始请求 URL({}) 参数({})]", request.getRequestURI(),
-                        StrUtil.nullToDefault(requestBody, queryString.toString()));
+                        StrUtil.blankToDefault(requestBody, queryString.toString()));
             }
             // 计时
             StopWatch stopWatch = new StopWatch();