自媒体号匹配程序，修复未匹配到的帐号显示为平台名称为题

src/main/java/com/zhiwei/source_forward/crawler/MediaSelfSourcePageProcessor.java

@@ -34,6 +34,9 @@ public class MediaSelfSourcePageProcessor implements PageProcessor {
 		try {
 			if(page.getStatusCode()!=404){
 				source = TreateData.matchMediaSelfSource(page.getUrl().get(),page.getHtml().toString());
+				if(source==null || source.equals("")){
+					source = null;
+				}
 				channel = TreateData.verifyChannel(page.getUrl().get());
 				if(channel==null){
 					List<Node> nodeList = page.getHtml().getDocument().head().childNodes();