PathVariable (Spring Framework 5.2.12.RELEASE API)

```
@Target(PARAMETER)
@Retention(RUNTIME)
@Documented
public @interface PathVariable
```
Annotation which indicates that a method parameter should be bound to a URI template variable. Supported for RequestMapping annotated handler methods.
If the method parameter is Map<String, String> then the map is populated with all path variable names and values.
Since:
3.0
Author:
Arjen Poutsma, Juergen Hoeller
See Also:
RequestMapping, RequestMappingHandlerAdapter

- Optional Element Summary
  Optional Elements
  Modifier and Type Optional Element Description
  String name
  The name of the path variable to bind to.
  boolean required
  Whether the path variable is required.
  String value
  Alias for name().

- Element Detail
  - value
```
@AliasFor("name")
String value
```
    Alias for name().
    Default:
    ""
- - name
```
@AliasFor("value")
String name
```
    The name of the path variable to bind to.
    Since:
    4.3.3
    Default:
    ""
- - required
```
boolean required
```
    Whether the path variable is required.
    Defaults to true, leading to an exception being thrown if the path variable is missing in the incoming request. Switch this to false if you prefer a null or Java 8 java.util.Optional in this case. e.g. on a ModelAttribute method which serves for different requests.
    Since:
    4.3.3
    Default:
    true