diff --git a/webmagic-core/src/main/java/us/codecraft/webmagic/Spider.java b/webmagic-core/src/main/java/us/codecraft/webmagic/Spider.java
index cf62796..0126881 100644
--- a/webmagic-core/src/main/java/us/codecraft/webmagic/Spider.java
+++ b/webmagic-core/src/main/java/us/codecraft/webmagic/Spider.java
@@ -220,6 +220,11 @@ public class Spider implements Runnable, Task {
         }
     }
 
+    public void test(String url){
+        checkComponent();
+        processRequest(new Request(url));
+    }
+
     private void processRequest(Request request) {
         Page page = downloader.download(request, this);
         if (page == null) {
diff --git a/webmagic-samples/src/main/java/us/codecraft/webmagic/model/samples/GithubRepo.java b/webmagic-samples/src/main/java/us/codecraft/webmagic/model/samples/GithubRepo.java
index f752829..edef1c0 100644
--- a/webmagic-samples/src/main/java/us/codecraft/webmagic/model/samples/GithubRepo.java
+++ b/webmagic-samples/src/main/java/us/codecraft/webmagic/model/samples/GithubRepo.java
@@ -1,23 +1,67 @@
 package us.codecraft.webmagic.model.samples;
 
 import us.codecraft.webmagic.Site;
-import us.codecraft.webmagic.model.ConsolePageModelPipeline;
+import us.codecraft.webmagic.model.HasKey;
 import us.codecraft.webmagic.model.OOSpider;
 import us.codecraft.webmagic.model.annotation.ExtractBy;
+import us.codecraft.webmagic.model.annotation.ExtractByUrl;
+import us.codecraft.webmagic.model.annotation.HelpUrl;
 import us.codecraft.webmagic.model.annotation.TargetUrl;
+import us.codecraft.webmagic.pipeline.JsonFilePageModelPipeline;
+
+import java.util.List;
 
 /**
  * @author code4crafter@gmail.com <br>
  *         Date: 13-8-10 <br>
  *         Time: 下午6:37 <br>
  */
-@TargetUrl("https://github.com/code4craft/*")
-public class GithubRepo {
+@TargetUrl("https://github.com/\\w+/\\w+")
+@HelpUrl({"https://github.com/\\w+\\?tab=repositories","https://github.com/\\w+","https://github.com/explore/*"})
+public class GithubRepo implements HasKey {
 
-    @ExtractBy("//h1[@class='entry-title']/strong/a/text()")
+    @ExtractBy(value = "//h1[@class='entry-title public']/strong/a/text()", notNull = true)
     private String name;
 
+    @ExtractByUrl("https://github\\.com/(\\w+)/.*")
+    private String author;
+
+    @ExtractBy("//div[@id='readme']")
+    private String readme;
+
+    @ExtractBy(value = "//div[@class='repository-lang-stats']//li//span[@class='lang']",multi = true)
+    private List<String> language;
+
+    @ExtractByUrl
+    private String url;
+
     public static void main(String[] args) {
-        OOSpider.create(Site.me().addStartUrl("https://github.com/code4craft/"), new ConsolePageModelPipeline(), GithubRepo.class).run();
+        OOSpider.create(Site.me().addStartUrl("https://github.com/explore").setSleepTime(0),
+                new JsonFilePageModelPipeline(), GithubRepo.class).thread(15).run();
+    }
+
+    @Override
+    public String key() {
+        return author+":"+name;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public String getReadme() {
+        return readme;
+    }
+
+    public String getAuthor() {
+        return author;
+    }
+
+    public List<String> getLanguage() {
+        return language;
+    }
+
+    public String getUrl() {
+        return url;
     }
 }