Similarityoung commented on issue #2728: URL: https://github.com/apache/dubbo-go/issues/2728#issuecomment-2775609347
## Type Mismatch Issue in `QueryDataSource` Method After debugging and reproducing the issue in my code, I've identified the problem within the `QueryDataSource` method: ```go QueryDataSource func(ctx context.Context, id int) (*DataSource, error) dubbo:"queryDataSource" ``` The root cause is a type mismatch: In Go, both `int` and `int64` are typically 8 bytes, while in Java, the `int` type is only 4 bytes. This discrepancy prevents Java from correctly identifying the method for invocation. **Solution:** Change the `int` parameter to `int32` in the Go method. ```go QueryDataSource func(ctx context.Context, id int32) (*DataSource, error) dubbo:"queryDataSource" ``` This modification should resolve the type compatibility issue. ## Enum Representation in Go I noticed that the Java enum types you've defined are represented as strings in Go: ```go Type string hessian:"type" // Mapped from Java enum ``` To address this and ensure proper enum handling in Go, I recommend utilizing the enum generation tool provided in the `dubbo-go-hessian2` repository. You can find the tool and instructions here: [dubbo-go-hessian2 enum generation tool](https://github.com/apache/dubbo-go-hessian2/blob/master/tools/gen-go-enum/README.md) Using this tool will enable you to correctly represent and utilize enums in your Go code. This will improve type safety and code clarity. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: notifications-unsubscr...@dubbo.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: notifications-unsubscr...@dubbo.apache.org For additional commands, e-mail: notifications-h...@dubbo.apache.org
