这个是在工作中遇到附件PDF文件上传和回显报错，请问一下要怎么解决呢？

Question

"2022-07-04 16:21:00 [DubboServerHandler-192.168.108.1:20883-thread-8] INFO  com.swyy.base.framework.db.DynamicDataSource - 当前操作使用的数据源：MASTER_DATA_SOURCE
java.lang.IllegalStateException: 如果当前请求不在异步模式下，则调用此方法是非法的（即isAsyncStarted（）返回false）
    at org.apache.catalina.connector.Request.getAsyncContext(Request.java:1811)
    at org.apache.catalina.connector.RequestFacade.getAsyncContext(RequestFacade.java:1068)
    at com.alibaba.fastjson.serializer.ASMSerializer_2_RequestFacade.write(Unknown Source)
    at com.alibaba.fastjson.serializer.JSONSerializer.write(JSONSerializer.java:281)
    at com.alibaba.fastjson.JSON.toJSONString(JSON.java:673)
    at com.alibaba.fastjson.JSON.toJSONString(JSON.java:611)
    at com.alibaba.fastjson.JSON.toJSONString(JSON.java:576)
    at com.swyy.base.log.interceptor.LogAspect$1.run(LogAspect.java:153)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
"2022-07-04 16:21:00 [DubboServerHandler-192.168.108.1:20883-thread-8] DEBUG com.swyy.base.log.dao.gen.mysql.SysLogTextGeneratedMapper.insert - ==>  Preparing: insert into sys_log_text (log_id, parameter_json, result_json ) values (?, ?, ? ) 
"2022-07-04 16:21:00 [DubboServerHandler-192.168.108.1:20883-thread-8] DEBUG com.swyy.base.log.dao.gen.mysql.SysLogTextGeneratedMapper.insert - ==>  Preparing: insert into sys_log_text (log_id, parameter_json, result_json ) values (?, ?, ? )