add @OverRide

Author: netbuffer

src/main/java/cn/netbuffer/filter/EncodingFilter.java

@@ -14,17 +14,20 @@ public class EncodingFilter implements Filter {
     private String encoding;
     private HashMap<String, String> params = new HashMap<String, String>();
 
+    @Override
     public void destroy() {
         params = null;
         encoding = null;
     }
 
+    @Override
     public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
         request.setCharacterEncoding(encoding);
         response.setContentType("text/html;charset=" + encoding);
         chain.doFilter(request, response);
     }
 
+    @Override
     public void init(FilterConfig config) throws ServletException {
         encoding = config.getInitParameter("encoding");
         if (StringUtils.isBlank(encoding)) {