diff --git a/webmagic-extension/src/main/java/us/codecraft/webmagic/example/GithubRepo.java b/webmagic-extension/src/main/java/us/codecraft/webmagic/example/GithubRepo.java
index 427cdf7..738d4a7 100644
--- a/webmagic-extension/src/main/java/us/codecraft/webmagic/example/GithubRepo.java
+++ b/webmagic-extension/src/main/java/us/codecraft/webmagic/example/GithubRepo.java
@@ -78,4 +78,17 @@ public class GithubRepo implements HasKey {
     public int getFork() {
         return fork;
     }
+
+    @Override
+    public String toString() {
+        return "GithubRepo{" +
+                "name='" + name + '\'' +
+                ", author='" + author + '\'' +
+                ", readme='" + readme + '\'' +
+                ", language=" + language +
+                ", star=" + star +
+                ", fork=" + fork +
+                ", url='" + url + '\'' +
+                '}';
+    }
 }
diff --git a/webmagic-extension/src/main/java/us/codecraft/webmagic/example/GithubRepoPageProcessor.java b/webmagic-extension/src/main/java/us/codecraft/webmagic/example/GithubRepoPageMapper.java
similarity index 69%
rename from webmagic-extension/src/main/java/us/codecraft/webmagic/example/GithubRepoPageProcessor.java
rename to webmagic-extension/src/main/java/us/codecraft/webmagic/example/GithubRepoPageMapper.java
index 3970546..d8bf9fb 100644
--- a/webmagic-extension/src/main/java/us/codecraft/webmagic/example/GithubRepoPageProcessor.java
+++ b/webmagic-extension/src/main/java/us/codecraft/webmagic/example/GithubRepoPageMapper.java
@@ -10,9 +10,9 @@ import us.codecraft.webmagic.processor.PageProcessor;
  * @author code4crafter@gmail.com <br>
  * @since 0.3.2
  */
-public class GithubRepoPageProcessor implements PageProcessor {
+public class GithubRepoPageMapper implements PageProcessor {
 
-    private Site site = Site.me().setRetryTimes(3);
+    private Site site = Site.me().setRetryTimes(3).setSleepTime(0);
 
     private PageMapper<GithubRepo> githubRepoPageMapper = new PageMapper<GithubRepo>(GithubRepo.class);
 
@@ -21,7 +21,12 @@ public class GithubRepoPageProcessor implements PageProcessor {
         page.addTargetRequests(page.getHtml().links().regex("(https://github\\.com/\\w+/\\w+)").all());
         page.addTargetRequests(page.getHtml().links().regex("(https://github\\.com/\\w+)").all());
         GithubRepo githubRepo = githubRepoPageMapper.get(page);
-        page.putField("repo",githubRepo);
+        if (githubRepo == null) {
+            page.setSkip(true);
+        } else {
+            page.putField("repo", githubRepo);
+        }
+
     }
 
     @Override
@@ -30,6 +35,6 @@ public class GithubRepoPageProcessor implements PageProcessor {
     }
 
     public static void main(String[] args) {
-        Spider.create(new GithubRepoPageProcessor()).addUrl("https://github.com/code4craft").thread(5).run();
+        Spider.create(new GithubRepoPageMapper()).addUrl("https://github.com/code4craft").thread(5).run();
     }
 }
\ No newline at end of file
diff --git a/webmagic-extension/src/main/java/us/codecraft/webmagic/model/PageMapper.java b/webmagic-extension/src/main/java/us/codecraft/webmagic/model/PageMapper.java
index f23d936..1cc5ac3 100644
--- a/webmagic-extension/src/main/java/us/codecraft/webmagic/model/PageMapper.java
+++ b/webmagic-extension/src/main/java/us/codecraft/webmagic/model/PageMapper.java
@@ -2,6 +2,8 @@ package us.codecraft.webmagic.model;
 
 import us.codecraft.webmagic.Page;
 
+import java.util.List;
+
 /**
  * @author code4crafer@gmail.com
  * @since 0.5.2
@@ -10,11 +12,18 @@ public class PageMapper<T> {
 
     private Class<T> clazz;
 
+    private PageModelExtractor pageModelExtractor;
+
     public PageMapper(Class<T> clazz) {
         this.clazz = clazz;
+        this.pageModelExtractor = PageModelExtractor.create(clazz);
     }
 
-    public T get(Page page){
-        return null;
+    public T get(Page page) {
+        return (T) pageModelExtractor.process(page);
+    }
+
+    public List<T> getAll(Page page) {
+        return (List<T>) pageModelExtractor.process(page);
     }
 }