ServletUriComponentsBuilder (Spring Framework 5.0.20.RELEASE API)

java.lang.Object
- org.springframework.web.util.UriComponentsBuilder
- - org.springframework.web.servlet.support.ServletUriComponentsBuilder

All Implemented Interfaces:

Cloneable, UriBuilder
```
public class ServletUriComponentsBuilder
extends UriComponentsBuilder
```
UriComponentsBuilder with additional static factory methods to create links based on the current HttpServletRequest.
Note: This class uses values from "Forwarded" (RFC 7239), "X-Forwarded-Host", "X-Forwarded-Port", and "X-Forwarded-Proto" headers, if present, in order to reflect the client-originated protocol and address. Consider using the ForwardedHeaderFilter in order to choose from a central place whether to extract and use, or to discard such headers. See the Spring Framework reference for more on this filter.

Since:

3.1

Author:

Rossen Stoyanchev

Constructor Summary

Constructors
Modifier	Constructor and Description
`protected`	`ServletUriComponentsBuilder()` Default constructor.
`protected`	`ServletUriComponentsBuilder(ServletUriComponentsBuilder other)` Create a deep copy of the given ServletUriComponentsBuilder.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`ServletUriComponentsBuilder`	`cloneBuilder()` Clone this `UriComponentsBuilder`.
`static ServletUriComponentsBuilder`	`fromContextPath(HttpServletRequest request)` Prepare a builder from the host, port, scheme, and context path of the given HttpServletRequest.
`static ServletUriComponentsBuilder`	`fromCurrentContextPath()` Same as `fromContextPath(HttpServletRequest)` except the request is obtained through `RequestContextHolder`.
`static ServletUriComponentsBuilder`	`fromCurrentRequest()` Same as `fromRequest(HttpServletRequest)` except the request is obtained through `RequestContextHolder`.
`static ServletUriComponentsBuilder`	`fromCurrentRequestUri()` Same as `fromRequestUri(HttpServletRequest)` except the request is obtained through `RequestContextHolder`.
`static ServletUriComponentsBuilder`	`fromCurrentServletMapping()` Same as `fromServletMapping(HttpServletRequest)` except the request is obtained through `RequestContextHolder`.
`static ServletUriComponentsBuilder`	`fromRequest(HttpServletRequest request)` Prepare a builder by copying the scheme, host, port, path, and query string of an HttpServletRequest.
`static ServletUriComponentsBuilder`	`fromRequestUri(HttpServletRequest request)` Prepare a builder from the host, port, scheme, and path (but not the query) of the HttpServletRequest.
`static ServletUriComponentsBuilder`	`fromServletMapping(HttpServletRequest request)` Prepare a builder from the host, port, scheme, context path, and servlet mapping of the given HttpServletRequest.
`protected static HttpServletRequest`	`getCurrentRequest()` Obtain current request through `RequestContextHolder`.
`String`	`removePathExtension()` Remove any path extension from the `requestURI`.

Methods inherited from class org.springframework.web.util.UriComponentsBuilder
build, build, build, build, buildAndExpand, buildAndExpand, clone, encode, encode, fragment, fromHttpRequest, fromHttpUrl, fromOriginHeader, fromPath, fromUri, fromUriString, host, newInstance, path, pathSegment, port, port, query, queryParam, queryParams, replacePath, replaceQuery, replaceQueryParam, replaceQueryParams, scheme, schemeSpecificPart, toUriString, uri, uriComponents, uriVariables, userInfo

Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - ServletUriComponentsBuilder
```
protected ServletUriComponentsBuilder()
```
    Default constructor. Protected to prevent direct instantiation.
    
    See Also:
    
    fromContextPath(HttpServletRequest), fromServletMapping(HttpServletRequest), fromRequest(HttpServletRequest), fromCurrentContextPath(), fromCurrentServletMapping(), fromCurrentRequest()
  - ServletUriComponentsBuilder
```
protected ServletUriComponentsBuilder(ServletUriComponentsBuilder other)
```
    Create a deep copy of the given ServletUriComponentsBuilder.
    
    Parameters:
    
    other - the other builder to copy from
- Method Detail
  - fromContextPath
```
public static ServletUriComponentsBuilder fromContextPath(HttpServletRequest request)
```
    Prepare a builder from the host, port, scheme, and context path of the given HttpServletRequest.
    Note: This method extracts values from "Forwarded" and "X-Forwarded-*" headers if found. See class-level docs.
    As of 4.3.15, this method replaces the contextPath with the value of "X-Forwarded-Prefix" rather than prepending, thus aligning with ForwardedHeaderFilter.
  - fromServletMapping
```
public static ServletUriComponentsBuilder fromServletMapping(HttpServletRequest request)
```
    Prepare a builder from the host, port, scheme, context path, and servlet mapping of the given HttpServletRequest.
    If the servlet is mapped by name, e.g. "/main/*", the path will end with "/main". If the servlet is mapped otherwise, e.g. "/" or "*.do", the result will be the same as if calling fromContextPath(HttpServletRequest).
    Note: This method extracts values from "Forwarded" and "X-Forwarded-*" headers if found. See class-level docs.
    As of 4.3.15, this method replaces the contextPath with the value of "X-Forwarded-Prefix" rather than prepending, thus aligning with ForwardedHeaderFilter.
  - fromRequestUri
```
public static ServletUriComponentsBuilder fromRequestUri(HttpServletRequest request)
```
    Prepare a builder from the host, port, scheme, and path (but not the query) of the HttpServletRequest.
    Note: This method extracts values from "Forwarded" and "X-Forwarded-*" headers if found. See class-level docs.
    As of 4.3.15, this method replaces the contextPath with the value of "X-Forwarded-Prefix" rather than prepending, thus aligning with ForwardedHeaderFilter.
  - fromRequest
```
public static ServletUriComponentsBuilder fromRequest(HttpServletRequest request)
```
    Prepare a builder by copying the scheme, host, port, path, and query string of an HttpServletRequest.
    Note: This method extracts values from "Forwarded" and "X-Forwarded-*" headers if found. See class-level docs.
    As of 4.3.15, this method replaces the contextPath with the value of "X-Forwarded-Prefix" rather than prepending, thus aligning with ForwardedHeaderFilter.
  - fromCurrentContextPath
```
public static ServletUriComponentsBuilder fromCurrentContextPath()
```
    Same as fromContextPath(HttpServletRequest) except the request is obtained through RequestContextHolder.
    Note: This method extracts values from "Forwarded" and "X-Forwarded-*" headers if found. See class-level docs.
    As of 4.3.15, this method replaces the contextPath with the value of "X-Forwarded-Prefix" rather than prepending, thus aligning with ForwardedHeaderFilter.
  - fromCurrentServletMapping
```
public static ServletUriComponentsBuilder fromCurrentServletMapping()
```
    Same as fromServletMapping(HttpServletRequest) except the request is obtained through RequestContextHolder.
    Note: This method extracts values from "Forwarded" and "X-Forwarded-*" headers if found. See class-level docs.
    As of 4.3.15, this method replaces the contextPath with the value of "X-Forwarded-Prefix" rather than prepending, thus aligning with ForwardedHeaderFilter.
  - fromCurrentRequestUri
```
public static ServletUriComponentsBuilder fromCurrentRequestUri()
```
    Same as fromRequestUri(HttpServletRequest) except the request is obtained through RequestContextHolder.
    Note: This method extracts values from "Forwarded" and "X-Forwarded-*" headers if found. See class-level docs.
    As of 4.3.15, this method replaces the contextPath with the value of "X-Forwarded-Prefix" rather than prepending, thus aligning with ForwardedHeaderFilter.
  - fromCurrentRequest
```
public static ServletUriComponentsBuilder fromCurrentRequest()
```
    Same as fromRequest(HttpServletRequest) except the request is obtained through RequestContextHolder.
    Note: This method extracts values from "Forwarded" and "X-Forwarded-*" headers if found. See class-level docs.
    As of 4.3.15, this method replaces the contextPath with the value of "X-Forwarded-Prefix" rather than prepending, thus aligning with ForwardedHeaderFilter.
  - getCurrentRequest
```
protected static HttpServletRequest getCurrentRequest()
```
    Obtain current request through RequestContextHolder.
  - removePathExtension
```
@Nullable
public String removePathExtension()
```
    Remove any path extension from the requestURI. This method must be invoked before any calls to UriComponentsBuilder.path(String) or UriComponentsBuilder.pathSegment(String...).
```
 GET http://www.foo.com/rest/books/6.json

 ServletUriComponentsBuilder builder = ServletUriComponentsBuilder.fromRequestUri(this.request);
 String ext = builder.removePathExtension();
 String uri = builder.path("/pages/1.{ext}").buildAndExpand(ext).toUriString();
 assertEquals("http://www.foo.com/rest/books/6/pages/1.json", result);
 
```
    Returns:
    
    the removed path extension for possible re-use, or null
    
    Since:
    
    4.0
  - cloneBuilder
```
public ServletUriComponentsBuilder cloneBuilder()
```
    Description copied from class: UriComponentsBuilder
    
    Clone this UriComponentsBuilder.
    
    Overrides:
    
    cloneBuilder in class UriComponentsBuilder
    
    Returns:
    
    the cloned UriComponentsBuilder object

Class ServletUriComponentsBuilder

Constructor Summary

Method Summary

Methods inherited from class org.springframework.web.util.UriComponentsBuilder

Methods inherited from class java.lang.Object

Constructor Detail

ServletUriComponentsBuilder

ServletUriComponentsBuilder

Method Detail

fromContextPath

fromServletMapping

fromRequestUri

fromRequest

fromCurrentContextPath

fromCurrentServletMapping

fromCurrentRequestUri

fromCurrentRequest

getCurrentRequest

removePathExtension

cloneBuilder