한국어 처리를 위한 필터 활용

- web.xml

<filter>     <filter-name>Encoding</filter-name>     <filter-class>example.struts.one.filter.</filter-class>      <init-param>       <param-name>encoding</param-name>       <param-value>euc-kr</param-value>      </init-param>  </filter>

- CharacterEncodingFilter.java

package example.struts.one.filter; 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; public class CharacterEncodingFilter implements Filter {  public CharacterEncodingFilter(){   defaultEncoding = null;  }  public void destroy() {   defaultEncoding = null;   filterConfig = null;  }  public void doFilter(ServletRequest request, ServletResponse response,    FilterChain chain) throws IOException, ServletException {   if(request.getCharacterEncoding()==null){    if(defaultEncoding != null){     request.setCharacterEncoding(defaultEncoding);    }   }   chain.doFilter(request, response);  }  public void init(FilterConfig filterConfig) throws ServletException {   defaultEncoding = filterConfig.getInitParameter("encoding");   System.out.println(defaultEncoding);   this.filterConfig = filterConfig;    }        private FilterConfig filterConfig = null ;  private String defaultEncoding = null ; }

영역지정에 대한 부분
-web.xml

<filter-mapping>   <filter-name>Encoding</filter-name>   <url-pattern>/*</url-pattern>  </filter-mapping>