我设置tomcat GET中文不成功

menglianjing

<filter-mapping>
                <filter-name>Set Character Encoding</filter-name>
                <url-pattern>/*</url-pattern>
        </filter-mapping>
       
        <filter>
                <filter-name>Set Character Encoding</filter-name>
                <filter-class>filter.SetCharacterEncodingFilter</filter-class>
                <init-param>
                        <param-name>encoding</param-name>
                        <param-value>GBK</param-value>
                </init-param>
        </filter>
我把此段添加到web.xml中，用浏览器打开却是错误的,代码404,如果不加，get过来的中文是乱码，我是参照J道上设置的，但是没有成功，请教大家了，Thanks

waveDuke

如果是想把jsp中的中文显示不是乱码，为什么不自己写个方法呢？String里有个方法是getBytes，可以进行转码的
比如：new String(str.getBytes("ISO8859_1"),"GBK");

fangshun

filter.SetCharacterEncodingFilter类发上来看看！其他都对的！
使用gb2312再试试！

menglianjing

[php]
package filters;


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;


/**
* <p>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:</p>
* <ul>
* <li><strong>encoding</strong> - The character encoding to be configured
*     for this request, either conditionally or unconditionally based on
*     the <code>ignore</code> initialization parameter.  This parameter
*     is required, so there is no default.</li>
* <li><strong>ignore</strong> - If set to "true", any character encoding
*     specified by the client is ignored, and the value returned by the
*     <code>selectEncoding()</code> method is set.  If set to "false,
*     <code>selectEncoding()</code> is called <strong>only</strong> if the
*     client has not already specified an encoding.  By default, this
*     parameter is set to "true".</li>
* </ul>
*
* <p>Although this filter can be used unchanged, it is also easy to
* subclass it and make the <code>selectEncoding()</code> method more
* intelligent about what encoding to choose, based on characteristics of
* the incoming request (such as the values of the <code>Accept-Language</code>
* and <code>User-Agent</code> headers, or a value stashed in the current
* user's session.</p>
*
* @author Craig McClanahan
* @version $Revision: 1.2 $ $Date: 2004/03/18 16:40:33 $
*/

public class SetCharacterEncodingFilter implements Filter {


    // ----------------------------------------------------- Instance Variables


    /**
     * 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;


    // --------------------------------------------------------- Public Methods


    /**
     * 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
     */
    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;

    }


    // ------------------------------------------------------ Protected Methods


    /**
     * 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
     * <code>null</code>.
     * <p>
     * The default implementation unconditionally returns the value configured
     * by the <strong>encoding</strong> initialization parameter for this
     * filter.
     *
     * @param request The servlet request we are processing
     */
    protected String selectEncoding(ServletRequest request) {

        return (this.encoding);

    }


}
[/php]

iDay

我给你qq上留言了
你看一下吧

menglianjing

现在tomcat抛 Context startup failed due to previous errors

menglianjing

解决了，包名写错
filter->filters