net.gplatform.sudoor.server.encoding

类 SetCharacterEncodingFilter

java.lang.Object

net.gplatform.sudoor.server.encoding.SetCharacterEncodingFilter

所有已实现的接口:

javax.servlet.Filter

@Component
public class SetCharacterEncodingFilter
extends Object
implements javax.servlet.Filter

Example filter that sets the character encoding to be used in parsing the incoming request, either unconditionally or only if the client did not specify a character encoding. Configuration of this filter is based on the following initialization parameters:

• encoding - The character encoding to be configured for this request, either conditionally or unconditionally based on the ignore initialization parameter. This parameter is required, so there is no default.
• ignore - If set to "true", any character encoding specified by the client is ignored, and the value returned by the selectEncoding() method is set. If set to "false, selectEncoding() is called only if the client has not already specified an encoding. By default, this parameter is set to "false".

Although this filter can be used unchanged, it is also easy to subclass it and make the selectEncoding() method more intelligent about what encoding to choose, based on characteristics of the incoming request (such as the values of the Accept-Language and User-Agent headers, or a value stashed in the current user's session.

构造器概要

构造器

构造器和说明
SetCharacterEncodingFilter()

方法概要

方法

限定符和类型	方法和说明
void	destroy()
void	doFilter(javax.servlet.ServletRequest request, javax.servlet.ServletResponse response, javax.servlet.FilterChain chain) Select and set (if specified) the character encoding to be used to interpret request parameters for this request.
String	getEncoding()
void	init(javax.servlet.FilterConfig filterConfig)
boolean	isIgnore()
protected String	selectEncoding(javax.servlet.ServletRequest request) Select an appropriate character encoding to be used, based on the characteristics of the current request and/or filter initialization parameters.
void	setEncoding(String encoding)
void	setIgnore(boolean ignore)

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细资料

SetCharacterEncodingFilter

public SetCharacterEncodingFilter()

方法详细资料

setEncoding

public void setEncoding(String encoding)

getEncoding

public String getEncoding()

setIgnore

public void setIgnore(boolean ignore)

isIgnore

public boolean isIgnore()

doFilter

public void doFilter(javax.servlet.ServletRequest request,
            javax.servlet.ServletResponse response,
            javax.servlet.FilterChain chain)
              throws IOException,
                     javax.servlet.ServletException

Select and set (if specified) the character encoding to be used to interpret request parameters for this request.

指定者:

doFilter 在接口中 javax.servlet.Filter

参数:

request - The servlet request we are processing

response - The servlet response we are creating

chain - The filter chain we are processing

抛出:

IOException - if an input/output error occurs

javax.servlet.ServletException - if a servlet error occurs

selectEncoding

protected String selectEncoding(javax.servlet.ServletRequest request)

Select an appropriate character encoding to be used, based on the characteristics of the current request and/or filter initialization parameters. If no character encoding should be set, return null.

The default implementation unconditionally returns the value configured by the encoding initialization parameter for this filter.

参数:

request - The servlet request we are processing

init

public void init(javax.servlet.FilterConfig filterConfig)
          throws javax.servlet.ServletException

指定者:

init 在接口中 javax.servlet.Filter

抛出:

javax.servlet.ServletException

destroy

public void destroy()

指定者:

destroy 在接口中 javax.servlet.Filter