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Spring MVC Tutorials 09 - @PathVariable annotation in detail (A URI-Template concept ) Video Lecture | MVC Tutorials: Web Programming Course - Web Development
FAQs on Spring MVC Tutorials 09 - @PathVariable annotation in detail (A URI-Template concept ) Video Lecture - MVC Tutorials: Web Programming Course - Web Development
| 1. What is the purpose of the @PathVariable annotation in Spring MVC? |  |
Ans. The @PathVariable annotation in Spring MVC is used to extract values from the URI template and bind them to method parameters. It allows us to create dynamic and flexible URLs by including variables in the URL path.
| 2. How does the @PathVariable annotation work in Spring MVC? | |
Ans. When a request is made to a Spring MVC controller method with a URL containing variables, the @PathVariable annotation is used to map these variables to method parameters. The annotation can be placed before the method parameter to indicate that it should be bound to a variable in the URL path.
| 3. Can we have multiple @PathVariable annotations in a single controller method? | |
Ans. Yes, we can have multiple @PathVariable annotations in a single controller method. This allows us to extract multiple variables from the URI template and use them as method parameters.
| 4. How can we specify a default value for a @PathVariable in Spring MVC? | |
Ans. To specify a default value for a @PathVariable in Spring MVC, we can use the defaultValue attribute of the annotation. By setting a default value, if the variable is not present in the URL, the method parameter will be assigned the default value.
| 5. Can we use regular expressions with @PathVariable in Spring MVC? | |
Ans. Yes, we can use regular expressions with @PathVariable in Spring MVC. By using regular expressions, we can define patterns that the variable in the URL path must match. This allows us to validate and restrict the values that can be assigned to the method parameter.
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Dec 27, 2024 Last updated |
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