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Java Source Code / Java Documentation » EJB Server resin 3.1.5 » jsdk » javax.servlet

Source Cross Reference Class Diagram Java Document (Java Doc)

java.lang .Object

javax.servlet .ServletRequestWrapper

All known Subclasses:   javax.servlet.http .HttpServletRequestWrapper,
ServletRequestWrapper
public class ServletRequestWrapper implements ServletRequest(Code)
Wraps a servlet request in another request. Filters may use ServletRequestWrapper to modify the headers passed to the servlet.
The default methods just call the wrapped request methods.
since:
   servlet 2.3

Constructor Summary
public ServletRequestWrapper(ServletRequest request)
     Create a new ServletRequestWrapper wrapping the enclosed request.

Method Summary
public Object getAttribute(String name)
     Returns an attribute value.
public Enumeration getAttributeNames()
     Enumerates all attribute names in the request.
public String getCharacterEncoding()
     Returns the character encoding of the POSTed data.
public int getContentLength()
     Returns the content length of the data.
public String getContentType()
     Returns the request's mime-type.
public ServletInputStream getInputStream()
     Returns an InputStream to retrieve POST data from the request.
public String getLocalAddr()
     Returns the IP address of the local host, i.e.
public String getLocalName()
     Returns the local host name.
public int getLocalPort()

public Locale getLocale()
     Returns the request's preferred locale.
public Enumeration getLocales()
     Returns an enumeration of all locales acceptable by the client.
public String getParameter(String name)
     Returns a form parameter.
public Map getParameterMap()
     Returns the parameter map request parameters.
public Enumeration getParameterNames()
     Returns an enumeration of all form parameter names.
public String[] getParameterValues(String name)
     Returns all values of a form parameter.
public String getProtocol()
     Returns the prococol, e.g.
public BufferedReader getReader()
     Returns a reader to read POSTed data.
public String getRealPath(String uri)
     Returns the real path.
public String getRemoteAddr()
     Returns the IP address of the remote host, i.e.
public String getRemoteHost()
     Returns the DNS hostname of the remote host, i.e.
public int getRemotePort()

public ServletRequest getRequest()
     Gets the request object being wrapped.
public RequestDispatcher getRequestDispatcher(String uri)
     Returns a request dispatcher for later inclusion or forwarding.
public String getScheme()
     Returns the request scheme, e.g.
public String getServerName()
     Returns the server name handling the request.
public int getServerPort()
     Returns the server port handling the request, e.g.
public boolean isSecure()
     Returns true if the connection is secure, e.g.
public void removeAttribute(String name)
     Removes the given attribute.
public void setAttribute(String name, Object o)
     Sets an attribute value.
public void setCharacterEncoding(String encoding)
     Sets the character encoding to be used for forms and getReader.
public void setRequest(ServletRequest request)
     Sets the request object being wrapped.

Constructor Detail
ServletRequestWrapper
public ServletRequestWrapper(ServletRequest request)(Code)
Create a new ServletRequestWrapper wrapping the enclosed request.

Method Detail
getAttribute
public Object getAttribute(String name)(Code)
Returns an attribute value.
Parameters:
  name - the attribute name the attribute value

getAttributeNames
public Enumeration getAttributeNames()(Code)
Enumerates all attribute names in the request.

getCharacterEncoding
public String getCharacterEncoding()(Code)
Returns the character encoding of the POSTed data.

getContentLength
public int getContentLength()(Code)
Returns the content length of the data. This value may differ from the actual length of the data. For newer browsers, i.e. those supporting HTTP/1.1, can support "chunked" encoding which does not make the content length available.
The upshot is, rely on the input stream to end when the data completes.

getContentType
public String getContentType()(Code)
Returns the request's mime-type.

getInputStream
public ServletInputStream getInputStream() throws IOException(Code)
Returns an InputStream to retrieve POST data from the request. The stream will automatically end when the end of the POST data is complete.

getLocalAddr
public String getLocalAddr()(Code)
Returns the IP address of the local host, i.e. the server.

getLocalName
public String getLocalName()(Code)
Returns the local host name.

getLocalPort
public int getLocalPort()(Code)
Returns the local port

getLocale
public Locale getLocale()(Code)
Returns the request's preferred locale.

getLocales
public Enumeration getLocales()(Code)
Returns an enumeration of all locales acceptable by the client.

getParameter
public String getParameter(String name)(Code)
Returns a form parameter. When the form contains several parameters of the same name, getParameter returns the first.
For example, calling getParameter("a") with the the query string a=1&a=2 will return "1".
Parameters:
  name - the form parameter to return the form value or null if none matches.

getParameterMap
public Map getParameterMap()(Code)
Returns the parameter map request parameters. By default, returns the underlying request's map.

getParameterNames
public Enumeration getParameterNames()(Code)
Returns an enumeration of all form parameter names. Enumeration e = _request.getParameterNames(); while (e.hasMoreElements()) { String name = (String) e.nextElement(); out.println(name + ": " + request.getParameter(name)); }

getParameterValues
public String[] getParameterValues(String name)(Code)
Returns all values of a form parameter.
For example, calling getParameterValues("a") with the the query string a=1&a=2 will return ["1", "2"].
Parameters:
  name - the form parameter to return an array of matching form values or null if none matches.

getProtocol
public String getProtocol()(Code)
Returns the prococol, e.g. "HTTP/1.1"

getReader
public BufferedReader getReader() throws IOException, IllegalStateException(Code)
Returns a reader to read POSTed data. Character encoding is based on the request data and is the same as getCharacterEncoding()

getRealPath
public String getRealPath(String uri)(Code)
Returns the real path.

getRemoteAddr
public String getRemoteAddr()(Code)
Returns the IP address of the remote host, i.e. the client browser.

getRemoteHost
public String getRemoteHost()(Code)
Returns the DNS hostname of the remote host, i.e. the client browser.

getRemotePort
public int getRemotePort()(Code)
Returns the remote port
since:
   2.4

getRequest
public ServletRequest getRequest()(Code)
Gets the request object being wrapped. the wrapped response

getRequestDispatcher
public RequestDispatcher getRequestDispatcher(String uri)(Code)
Returns a request dispatcher for later inclusion or forwarding. This is the servlet API equivalent to SSI includes. uri is relative to the request URI. Absolute URIs are relative to the application prefix (getContextPath()).
If getRequestURI() is /myapp/dir/test.jsp and the uri is "inc.jsp", the resulting page is /myapp/dir/inc.jsp.
RequestDispatcher disp; disp = getRequestDispatcher("inc.jsp?a=b"); disp.include(request, response);

Parameters:
  uri - path relative to getRequestURI()(including query string) for the included file. RequestDispatcher for later inclusion or forwarding.

getScheme
public String getScheme()(Code)
Returns the request scheme, e.g. "http"

getServerName
public String getServerName()(Code)
Returns the server name handling the request. When using virtual hosts, this returns the virtual host name, e.g. "vhost1.caucho.com".

getServerPort
public int getServerPort()(Code)
Returns the server port handling the request, e.g. 80.

isSecure
public boolean isSecure()(Code)
Returns true if the connection is secure, e.g. it uses SSL.

removeAttribute
public void removeAttribute(String name)(Code)
Removes the given attribute.
Parameters:
  name - the attribute name

setAttribute
public void setAttribute(String name, Object o)(Code)
Sets an attribute value.
Parameters:
  name - the attribute name
Parameters:
  o - the attribute value

setCharacterEncoding
public void setCharacterEncoding(String encoding) throws UnsupportedEncodingException(Code)
Sets the character encoding to be used for forms and getReader.

setRequest
public void setRequest(ServletRequest request)(Code)
Sets the request object being wrapped.
exception:
  IllegalArgumentException - if the request is null

Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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