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[WebAPI] asp.net the webAPI to set optional parameters

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Posted on 4/20/2018 1:09:45 PM | | | |


The above is a method in the webapi controller, when simulating a get request, there will be no error with the above three parameters, if only the "CardNo" parameter is used, the error will be reported as follows:

{
    "Message": "No HTTP resource was found that matches the request URI 'http://localhost:28742/api/Driver/Test?CardNo=1'.",
    "MessageDetail": "No action was found on the controller 'Driver' that matches the request."
}




Solution:

For optional parameters, set default values, such as:



If there are more than three parameters, consider using a model.




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