This commit improves the reference document to better reflect the
different between `*` or `{name}` on one side, and `**` or `{*path}` on
the other.
The former patterns only consider a single path segment and its content,
while the latter variants consider zero or more path segments. This
explains why `/test/{*path}` can match `/test`.
Closes gh-35727
Prior to this commit, the `PathPattern` and `PathPatternParser` would
allow multiple-segments matching and capturing with the following:
* "/files/**" (matching 0-N segments until the end)
* "/files/{*path}" (matching 0-N segments until the end and capturing
the value as the "path" variable)
This would be only allowed as the last path element in the pattern and
the parser would reject other combinations.
This commit expands the support and allows multiple segments matching at
the beginning of the path:
* "/**/index.html" (matching 0-N segments from the start)
* "/{*path}/index.html" (matching 0-N segments until the end and capturing
the value as the "path" variable)
This does come with additional restrictions:
1. "/files/**/file.txt" and "/files/{*path}/file.txt" are invalid,
as multiple segment matching is not allowed in the middle of the
pattern.
2. "/{*path}/files/**" is not allowed, as a single "{*path}" or "/**"
element is allowed in a pattern
3. "/{*path}/{folder}/file.txt" "/**/{folder:[a-z]+}/file.txt" are
invalid because only a literal pattern is allowed right after
multiple segments path elements.
Closes gh-35679
Prior to this commit, the `PathPattern` and `PathPatternParser` would
allow multiple-segments matching and capturing with the following:
* "/files/**" (matching 0-N segments until the end)
* "/files/{*path}" (matching 0-N segments until the end and capturing
the value as the "path" variable)
This would be only allowed as the last path element in the pattern and
the parser would reject other combinations.
This commit expands the support and allows multiple segments matching at
the beginning of the path:
* "/**/index.html" (matching 0-N segments from the start)
* "/{*path}/index.html" (matching 0-N segments until the end and capturing
the value as the "path" variable)
This does come with additional restrictions:
1. "/files/**/file.txt" and "/files/{*path}/file.txt" are invalid,
as multiple segment matching is not allowed in the middle of the
pattern.
2. "/{*path}/files/**" is not allowed, as a single "{*path}" or "/**"
element is allowed in a pattern
3. "/{*path}/{folder}/file.txt" "/**/{folder:[a-z]+}/file.txt" are
invalid because only a literal pattern is allowed right after
multiple segments path elements.
Closes gh-35213
In order to improve the user experience with URLs for sections of the
Validation chapter, this commit makes the following changes to page
names in the "validation" folder.
- beans-beans.html --> data-binding.html
- conversion.html --> error-code-resolution.html
Some of the section anchors in data-binding.html have also been
renamed. For example, #beans-beans is now #data-binding-property-binding.
Closes gh-35181
Since we now use asciidoctor-tabs instead of spring-asciidoctor-backends,
we no longer need the `role="primary"` and `role="secondary"` attributes
for tab groups.
Closes gh-33506
On the client side, supports `name=value` pairs. Placeholders in values
are resolved by the `embeddedValueResolver`.
On the server side, additionally supports `name` and `!name` syntax.
Closes gh-33309
Prior to this commit, the "Method Arguments" documentation for WebFlux
in the reference manual stated that WebFlux controller methods can
accept arguments of type Map, Model, or ModelMap to access the model.
However, ModelMap is actually not supported and results in exception
due to a type mismatch.
This commit updates the documentation to reflect this.
In addition, this commit updates related Javadoc and tests to avoid
mentioning or using ModelMap in WebFlux.
Closes gh-33107
Prior to this commit, `@ExceptionHandler` annotated controller methods
could be mapped using the exception type declaration as an annotation
attribute, or as a method parameter.
While such methods support a wide variety of method arguments and return
types, it was not possible to declare the same exception type on
different methods (in the same controller/controller advice).
This commit adds a new `produces` attribute on `@ExceptionHandler`; with
that, applications can vary the HTTP response depending on the exception
type and the requested content-type by the client:
```
@ExceptionHandler(produces = "application/json")
public ResponseEntity<ErrorMessage> handleJson(IllegalArgumentException exc) {
return ResponseEntity.badRequest().body(new ErrorMessage(exc.getMessage(), 42));
}
@ExceptionHandler(produces = "text/html")
public String handle(IllegalArgumentException exc, Model model) {
model.addAttribute("error", new ErrorMessage(exc.getMessage(), 42));
return "errorView";
}
```
This commit implements support in both Spring MVC and Spring WebFlux.
Closes gh-31936
rstoyanchev