@RequestParam(defaultValue = "1")
时间: 2023-10-16 09:27:50 浏览: 43
This is a default value for a request parameter in a Spring Boot application.
When a user sends a request to a Spring Boot controller, they can include parameters in the request URL. For example, if the user is requesting information about a specific product, they might include the product ID as a parameter like this:
```
https://example.com/products?id=1234
```
In this case, the `id` parameter has a value of `1234`.
The `@RequestParam` annotation in a Spring Boot controller method allows the controller to access these request parameters. The `defaultValue` attribute specifies what value should be used if the user does not include a value for the parameter in their request.
So in this case, if the user sends a request without providing a value for the parameter, the value of the parameter will default to `1`.