By: Manoj in Asp.net Tutorials on 2023年06月01日 [フレーム]
The AmbiguousMatchException you encountered means that there are multiple endpoints in your code that match the incoming request. This can happen when you have multiple actions in a controller with the same name and same HTTP verb.
To resolve this issue, you need to make sure that each endpoint has a unique name or route. Here are a few possible solutions:
Rename the conflicting action methods: Give each action method in your controller a unique name that reflects its purpose. For example, instead of having two Index methods, you can rename them to Index1 and Index2.
Use attribute routing: Decorate your action methods with specific route attributes to differentiate them. By using [Route] attribute, you can specify unique routes for each action method. For example:
[Route("api/controller/action1")]
public IActionResult Action1()
{
// Action1 implementation
}
[Route("api/controller/action2")]
public IActionResult Action2()
{
// Action2 implementation
}
[HttpGet], [HttpPost], [HttpPut], etc. attributes to specify the appropriate HTTP verb for each action. For example:
[HttpGet]
public IActionResult Index()
{
// GET Index implementation
}
[HttpPost]
public IActionResult Index()
{
// POST Index implementation
}
By making these changes, you ensure that each endpoint has a unique identifier, and the AmbiguousMatchException should be resolved.
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