Adding the Encodingfilter class implements the filter interface
Import javax.servlet.*;
Import Javax.servlet.http.HttpServletRequest;
Import java.io.IOException;
public class Encodingfilter implements Filter {
Filterconfig config = null;
Default to GBK
Private String targetencoding = "GBK";
public void init (Filterconfig config) throws servletexception {
this.config = config;
this.targetencoding = Config.getinitparameter ("encoding");
}
public void Destroy () {
config = null;
targetencoding = null;
}
public void DoFilter (ServletRequest srequest, Servletresponse sresponse,
Filterchain chain) throws IOException, Servletexception {
HttpServletRequest request = (httpservletrequest) srequest;
Request.setcharacterencoding (targetencoding);
Chain.dofilter (Srequest, sresponse);
}
}
The configuration is added in Web. xml
<filter>
<filter-name>encodingFilter</filter-name>
<filter-class>xx.xx.xx.EncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
<init-param>
<param-name>useragents</param-name>
<param-value>Mac</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>encodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
Web. XML configuration----Character Filter