delete redundant code

Author: liuxiaolsdx

src/main/java/com/hunantv/fw/Dispatcher.java

@@ -21,7 +21,7 @@ public class Dispatcher extends AbstractHandler {
 
 	public final static FwLogger logger = new FwLogger(Dispatcher.class);
 	Application app = Application.getInstance();
-	protected Routes routes = app.getRoutes();;
+	protected Routes routes = app.getRoutes();
 	protected boolean debug = app.isDebug();
 
 	protected static final MultipartConfigElement MULTI_PART_CONFIG = new MultipartConfigElement(System.getProperty("java.io.tmpdir"));
@@ -32,7 +32,9 @@ public void handle(String target, Request baseRequest, HttpServletRequest reques
 		Long btime = System.currentTimeMillis();
 		logger.initSeqid();
 		logger.debug(target);
-		response.setContentType("text/html;charset=UTF-8");
+		if (WebUtil.isTextHtml(request)) {
+			response.setContentType("text/html;charset=UTF-8");
+		}
 		if (WebUtil.isMultipart(request)) {
 			request.setAttribute(Request.__MULTIPART_CONFIG_ELEMENT, MULTI_PART_CONFIG);
 		}
@@ -47,7 +49,7 @@ public void handle(String target, Request baseRequest, HttpServletRequest reques
 			this.err500(response, ex);
 		} finally {
 			Long etime = System.currentTimeMillis();
-			logger.delayInfo("cost", new Long(etime - btime).toString());
+			logger.delayInfo("cost", Long.toString(etime - btime));
 			logger.clearSeqid();
 		}
 	}

src/main/java/com/hunantv/fw/utils/WebUtil.java

@@ -8,7 +8,10 @@ public static boolean isMultipart(HttpServletRequest request) {
 		String contentType = request.getContentType();
 		return contentType != null && contentType.startsWith("multipart/form-data");
 	}
-
+	public static boolean isTextHtml(HttpServletRequest request) {
+		String HeaderValue = request.getHeader("Accept");
+		return  HeaderValue != null && HeaderValue.startsWith("text/html");
+	}
 	private static String[] IP_HEADS = new String[] { 
 		"X-Forwarded-For", 
 		"Proxy-Client-IP",