In the SpringBoot project, swapper2 uses @apiIMPLicitParam:

@apiIMPLICITParam (value = "code", name = "code", example = "000001")

Open the [Online Debugging] of the document, and find an exception: the server cannot get the parameter. The diagram below:

If paramType is missing, add paramType = “query”.

@apiIMPLICITParam (value = "stock code", name = "code", paramType = "query", example = "000001")