bringwu

Results 2 issues of bringwu

The type of length is int, but only a single byte is being read and written. ![企业微信截图_17065021082675](https://github.com/apache/dubbo/assets/15963748/5b4f8986-a009-4eaf-b065-5061d5e39574) ![企业微信截图_17065021626847](https://github.com/apache/dubbo/assets/15963748/d68a6df4-d478-4b93-968e-3af458eb885e)

type/bug
help wanted
type/enhancement
good first issue
component/sdk

provider service method: ``` public CompletableFuture newToken(NewTokenInfo tReq) { TokenInfo tokenInfo = new TokenInfo(JsonUtils.toJson(tReq), 60); // 可以设置回应附加信息 // RpcContext.getServerResponseContext().setAttachment("testInfo", JsonUtils.toJson(tokenInfo)); // 可以设置回应附加信息 // RpcContext.getServerContext().setAttachment("testInfo", JsonUtils.toJson(tokenInfo)); CompletableFuture completableFuture = new CompletableFuture();...

help wanted
type/enhancement
component/sdk