about configuring the spring character encoding filter in Web. XML to solve the problem of Chinese garbled characters

When the Chinese garbled problem occurs, spring can be resolved with the Characterencodingfilter filter, as shown in the following code:

<!--Spring character encoding filter: Solve Chinese garbled problem -    <Filter>        <Filter-name>Characterencodingfilter</Filter-name>        <Filter-class>Org.springframework.web.filter.CharacterEncodingFilter</Filter-class>        <Init-param><!--Specify the encoding -            <Param-name>Encoding</Param-name>            <Param-value>UTF-8</Param-value>        </Init-param>    </Filter>    <filter-mapping>        <Filter-name>Characterencodingfilter</Filter-name>        <Url-pattern>/*</Url-pattern>    </filter-mapping>

However, the filter only does not resolve a specific request, that is, the request to send Chinese in the address bar in a get way, for example:

　　Localhost:8080/myapp/user/toadd.action?name= xiaoming

Characterencodingfilter source code is as follows:

/** Copyright 2002-2007 the original author or authors. * Licensed under the Apache License, Version 2.0 (the "Licens E "); * You are not a use this file except in compliance with the License. * Obtain a copy of the License at * *http://www.apache.org/licenses/LICENSE-2.0* * Unless required by applicable or agreed to writing, software * Distributed under the License is distribute D on ' As is ' BASIS, * without warranties or CONDITIONS of any KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ PackageOrg.springframework.web.filter;Importjava.io.IOException;ImportJavax.servlet.FilterChain;Importjavax.servlet.ServletException;Importjavax.servlet.http.HttpServletRequest;ImportJavax.servlet.http.HttpServletResponse;/*** Servlet 2.3/2.4 Filter, allows one to specify a character encoding for * requests. This is useful because current browsers typically does not set a * character encoding even if specified in the HTML page or Form. * * <p>this filter can either apply its encoding if the request does not * already specify an encoding, or enforce t His filter's encoding in any case * ("forceencoding" = "true"). In the latter case, the encoding would also be * applied as Default response encoding on Servlet 2.4+ containers (although * This'll usually is overridden by a full content type set in the view). * * @authorJuergen Hoeller *@since15.03.2004 *@see#setEncoding *@see#setForceEncoding *@seejavax.servlet.http.httpservletrequest#setcharacterencoding *@seejavax.servlet.http.httpservletresponse#setcharacterencoding*/ Public classCharacterencodingfilterextendsOnceperrequestfilter {PrivateString encoding; Private BooleanForceencoding =false; /*** Set the encoding to use for requests. This encoding'll is passed into a * {@linkjavax.servlet.http.httpservletrequest#setcharacterencoding} call.  * <p>whether This encoding would override existing request encodings * (and Whether It'll be applied as default Response encoding as well) * depends on the {@link#setForceEncoding "forceencoding"} flag. */     Public voidsetencoding (String encoding) { This. Encoding =encoding; }    /*** Set whether the configured {@link#setEncoding Encoding} of this filter * are supposed to override existing request and response encodings. * <p>default is "false", i.e. does not modify the encoding if * {@linkjavax.servlet.http.httpservletrequest#getcharacterencoding ()} * Returns a Non-null value. Switch this to ' true ' to enforce the specified * encoding in any case, applying it as Default response encoding as Wel     L. * <p>note that the response encoding would only is set on Servlet 2.4+ * containers, since Servlet 2.3 do not PR     Ovide a facility for setting * A default response encoding. */     Public voidSetforceencoding (Booleanforceencoding) {         This. forceencoding =forceencoding; } @Overrideprotected voiddofilterinternal (httpservletrequest request, httpservletresponse response, Filterchain Filterchain) throwsservletexception, IOException {if( This. Encoding! =NULL&& ( This. forceencoding | | request.getcharacterencoding () = =NULL) {request.setcharacterencoding ( This. Encoding); if( This. forceencoding) {response.setcharacterencoding ( This. Encoding);    }} filterchain.dofilter (request, response); }}

about configuring the spring character encoding filter in Web. XML to solve the problem of Chinese garbled characters