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  • Book Overview & Buying SPRING COOKBOOK
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SPRING COOKBOOK

SPRING COOKBOOK

By : Jerome Jaglale, Yilmaz
4 (3)
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SPRING COOKBOOK

SPRING COOKBOOK

4 (3)
By: Jerome Jaglale, Yilmaz

Overview of this book

This book is for you if you have some experience with Java and web development (not necessarily in Java) and want to become proficient quickly with Spring.
Table of Contents (14 chapters)
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13
Index

Using dynamic route parameters in a controller method

Now we will define dynamic segments for a route and use them in the associated controller method. For example, we want the /user/5/name and /user/6/email routes to execute the same controller method with different arguments: showUserField(5, "name") and showUserField(6, "email"), respectively.

How to do it…

Use {} to enclose the dynamic route segments and @PathVariable to annotate the corresponding controller method arguments:

@RequestMapping("/user/{id}/{field}")
public void showUserField(@PathVariable("id") Long userId, @PathVariable("field") String field) {
...
}

How it works…

A request for the /user/5/email route will execute the showUserField(5,"email") method. @PathVariable("id") Long userId casts the id route parameter to the userId method argument. Similarly, the field route parameter is passed as String to showUserField().

An incorrect route such as...

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