注释类型 MatrixVariable

@Target(PARAMETER)
@Retention(RUNTIME)
@Documented
public @interface MatrixVariable

Annotation which indicates that a method parameter should be bound to a name-value pair within a path segment. Supported for RequestMapping annotated handler methods in Servlet environments.

If the method parameter type is Map and a matrix variable name is specified, then the matrix variable value is converted to a Map assuming an appropriate conversion strategy is available.

If the method parameter is Map<String, String> or MultiValueMap<String, String> and a variable name is not specified, then the map is populated with all matrix variable names and values.