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SetCharacterEncodingFilter源文件
package org.kyle.web.sample;import java.io.IOException;import javax.servlet.Filter;import javax.servlet.FilterChain;import javax.servlet.FilterConfig;import javax.servlet.ServletException;import javax.servlet.ServletRequest;import javax.servlet.ServletResponse;import javax.servlet.UnavailableException;public class SetCharacterEncodingFilter implements Filter
...{
/** *//**
* The default character encoding to set for requests that pass through * this filter.
*/ protected String encoding = null; /** *//** * The filter configuration object we are associated with. If this value * is null, this filter instance is not currently configured. */ protected FilterConfig filterConfig = null; /** *//** * Should a character encoding specified by the client be ignored? */ protected boolean ignore = true; /** *//** * Take this filter out of service. */ public void destroy() ...{ this.encoding = null; this.filterConfig = null; } /** *//** * Select and set (if specified) the character encoding to be used to * interpret request parameters for this request. * * @param request The servlet request we are processing * @param result The servlet response we are creating * @param chain The filter chain we are processing * * @exception IOException if an input/output error occurs * @exception ServletException if a servlet error occurs */ public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException ...{ // Conditionally select and set the character encoding to be used if (ignore || (request.getCharacterEncoding() == null)) ...{ String encoding = selectEncoding(request); if (encoding != null) request.setCharacterEncoding(encoding); } // Pass control on to the next filter chain.doFilter(request, response); } /** *//** * Place this filter into service. * * @param filterConfig The filter configuration object * *encoding * UTF-8 * */ public void init(FilterConfig filterConfig) throws ServletException ...{ this.filterConfig = filterConfig; this.encoding = filterConfig.getInitParameter("encoding"); String value = filterConfig.getInitParameter("ignore"); if (value == null) this.ignore = true; else if (value.equalsIgnoreCase("true")) this.ignore = true; else if (value.equalsIgnoreCase("yes")) this.ignore = true; else this.ignore = false; } /** *//** * 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. * * @param request The servlet request we are processing */ protected String selectEncoding(ServletRequest request) ...{ return (this.encoding); }
} * The default implementation unconditionally returns the value configured * by the encoding initialization parameter for this * filter. * * @param request The servlet request we are processing */ protected String selectEncoding(ServletRequest request) ...{ return (this.encoding); }}
|
<filter>
<filter-name>setCharacterEncodingFilter</filter-name>
<display-name>setCharacterEncodingFilter</display-name>
<description>setCharacterEncodingFilter</description>
<filter-class>org.kyle.web.sample.SetCharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
</filter> |
|
<context-param>
<param-name>weblogic.httpd.inputCharset./*</param-name>
<param-value>utf-8</param-value>
</context-param> |
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