diff --git a/.gitignore b/.gitignore
index 7a88658e..19d93d91 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,8 +1,4 @@
-/WebCollector/target/
-/WebCollector/.idea
-/WebCollectorExample/
-/WebCollectorExample/target/
-/Lazy/target/
-/Lazy/.idea
-/WebCollector-Hadoop/target/
-/JSRule/target/
\ No newline at end of file
+WebCollectorExample
+target
+.idea
+*.iml
diff --git a/WebCollector/.idea/.name b/WebCollector/.idea/.name
deleted file mode 100644
index 41e5d474..00000000
--- a/WebCollector/.idea/.name
+++ /dev/null
@@ -1 +0,0 @@
-WebCollector
\ No newline at end of file
diff --git a/WebCollector/.idea/compiler.xml b/WebCollector/.idea/compiler.xml
deleted file mode 100644
index a61dad69..00000000
--- a/WebCollector/.idea/compiler.xml
+++ /dev/null
@@ -1,32 +0,0 @@
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-<project version="4">
-  <component name="CompilerConfiguration">
-    <resourceExtensions />
-    <wildcardResourcePatterns>
-      <entry name="!?*.java" />
-      <entry name="!?*.form" />
-      <entry name="!?*.class" />
-      <entry name="!?*.groovy" />
-      <entry name="!?*.scala" />
-      <entry name="!?*.flex" />
-      <entry name="!?*.kt" />
-      <entry name="!?*.clj" />
-      <entry name="!?*.aj" />
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-        <sourceTestOutputDir name="target/generated-test-sources/test-annotations" />
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-</project>
\ No newline at end of file
diff --git a/WebCollector/.idea/copyright/profiles_settings.xml b/WebCollector/.idea/copyright/profiles_settings.xml
deleted file mode 100644
index c7d1c5a8..00000000
--- a/WebCollector/.idea/copyright/profiles_settings.xml
+++ /dev/null
@@ -1,3 +0,0 @@
-<component name="CopyrightManager">
-  <settings default="" />
-</component>
\ No newline at end of file
diff --git a/WebCollector/.idea/encodings.xml b/WebCollector/.idea/encodings.xml
deleted file mode 100644
index fe7d837c..00000000
--- a/WebCollector/.idea/encodings.xml
+++ /dev/null
@@ -1,7 +0,0 @@
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-</project>
\ No newline at end of file
diff --git a/WebCollector/.idea/misc.xml b/WebCollector/.idea/misc.xml
deleted file mode 100644
index b31cbbe6..00000000
--- a/WebCollector/.idea/misc.xml
+++ /dev/null
@@ -1,64 +0,0 @@
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\ No newline at end of file
diff --git a/WebCollector/.idea/workspace.xml b/WebCollector/.idea/workspace.xml
deleted file mode 100644
index 118957a8..00000000
--- a/WebCollector/.idea/workspace.xml
+++ /dev/null
@@ -1,1286 +0,0 @@
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-          <caret line="61" column="25" selection-start-line="61" selection-start-column="25" selection-end-line="61" selection-end-column="25" />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/src/main/java/cn/edu/hfut/dmic/webcollector/model/CrawlDatum.java">
-      <provider selected="true" editor-type-id="text-editor">
-        <state vertical-scroll-proportion="-11.166667">
-          <caret line="146" column="25" selection-start-line="146" selection-start-column="25" selection-end-line="146" selection-end-column="25" />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/src/main/java/cn/edu/hfut/dmic/webcollector/example/Tutorial2Crawler.java">
-      <provider selected="true" editor-type-id="text-editor">
-        <state vertical-scroll-proportion="0.15767635">
-          <caret line="20" column="48" selection-start-line="20" selection-start-column="48" selection-end-line="20" selection-end-column="48" />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/src/main/java/cn/edu/hfut/dmic/webcollector/example/TutorialCrawler.java">
-      <provider selected="true" editor-type-id="text-editor">
-        <state vertical-scroll-proportion="0.4453125">
-          <caret line="69" column="34" selection-start-line="69" selection-start-column="34" selection-end-line="69" selection-end-column="34" />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/src/main/java/cn/edu/hfut/dmic/webcollector/example/DemoBingCrawler.java">
-      <provider selected="true" editor-type-id="text-editor">
-        <state vertical-scroll-proportion="0.7261411">
-          <caret line="111" column="5" selection-start-line="111" selection-start-column="5" selection-end-line="111" selection-end-column="5" />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/CODE_COVERAGE.md">
-      <provider selected="true" editor-type-id="text-editor">
-        <state vertical-scroll-proportion="0.0">
-          <caret line="0" column="0" selection-start-line="0" selection-start-column="0" selection-end-line="0" selection-end-column="0" />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/src/main/java/cn/edu/hfut/dmic/webcollector/example/DemoPostCrawler.java">
-      <provider selected="true" editor-type-id="text-editor">
-        <state vertical-scroll-proportion="0.0">
-          <caret line="0" column="0" selection-start-line="0" selection-start-column="0" selection-end-line="16" selection-end-column="3" />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/src/main/java/cn/edu/hfut/dmic/webcollector/example/DemoSelenium.java">
-      <provider selected="true" editor-type-id="text-editor">
-        <state vertical-scroll-proportion="0.0">
-          <caret line="36" column="13" selection-start-line="36" selection-start-column="13" selection-end-line="36" selection-end-column="13" />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/src/main/java/cn/edu/hfut/dmic/webcollector/model/CrawlDatums.java">
-      <provider selected="true" editor-type-id="text-editor">
-        <state vertical-scroll-proportion="0.0">
-          <caret line="81" column="29" selection-start-line="81" selection-start-column="29" selection-end-line="81" selection-end-column="29" />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/src/main/java/cn/edu/hfut/dmic/webcollector/plugin/ram/RamCrawler.java">
-      <provider selected="true" editor-type-id="text-editor">
-        <state vertical-scroll-proportion="0.703125">
-          <caret line="46" column="0" selection-start-line="46" selection-start-column="0" selection-end-line="46" selection-end-column="0" />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/src/main/java/cn/edu/hfut/dmic/webcollector/fetcher/Fetcher.java">
-      <provider selected="true" editor-type-id="text-editor">
-        <state vertical-scroll-proportion="0.0">
-          <caret line="228" column="0" selection-start-line="228" selection-start-column="0" selection-end-line="228" selection-end-column="0" />
-          <folding />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/src/main/java/cn/edu/hfut/dmic/webcollector/plugin/berkeley/BerkeleyGenerator.java">
-      <provider selected="true" editor-type-id="text-editor">
-        <state vertical-scroll-proportion="0.0">
-          <caret line="99" column="69" selection-start-line="99" selection-start-column="69" selection-end-line="99" selection-end-column="69" />
-          <folding />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/src/main/java/cn/edu/hfut/dmic/webcollector/plugin/berkeley/BerkeleyDBUtils.java">
-      <provider selected="true" editor-type-id="text-editor">
-        <state vertical-scroll-proportion="0.0">
-          <caret line="61" column="43" selection-start-line="61" selection-start-column="43" selection-end-line="61" selection-end-column="43" />
-          <folding />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/src/main/java/cn/edu/hfut/dmic/webcollector/util/CrawlDatumFormater.java">
-      <provider selected="true" editor-type-id="text-editor">
-        <state vertical-scroll-proportion="0.0">
-          <caret line="76" column="65" selection-start-line="76" selection-start-column="65" selection-end-line="76" selection-end-column="65" />
-          <folding />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/src/main/java/cn/edu/hfut/dmic/webcollector/plugin/ram/RamDB.java">
-      <provider selected="true" editor-type-id="text-editor">
-        <state vertical-scroll-proportion="0.0">
-          <caret line="26" column="13" selection-start-line="26" selection-start-column="13" selection-end-line="26" selection-end-column="13" />
-          <folding>
-            <element signature="imports" expanded="true" />
-          </folding>
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/pom.xml">
-      <provider selected="true" editor-type-id="text-editor">
-        <state vertical-scroll-proportion="0.0">
-          <caret line="8" column="17" selection-start-line="8" selection-start-column="17" selection-end-line="8" selection-end-column="17" />
-          <folding />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/src/main/java/cn/edu/hfut/dmic/webcollector/plugin/berkeley/BerkeleyDBManager.java">
-      <provider selected="true" editor-type-id="text-editor">
-        <state vertical-scroll-proportion="0.0">
-          <caret line="52" column="45" selection-start-line="52" selection-start-column="45" selection-end-line="52" selection-end-column="45" />
-          <folding />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/src/main/java/cn/edu/hfut/dmic/webcollector/crawler/Crawler.java">
-      <provider selected="true" editor-type-id="text-editor">
-        <state vertical-scroll-proportion="0.0">
-          <caret line="71" column="23" selection-start-line="71" selection-start-column="23" selection-end-line="71" selection-end-column="23" />
-          <folding>
-            <element signature="e#5327#5328#0" expanded="true" />
-            <element signature="e#5365#5366#0" expanded="true" />
-          </folding>
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/src/main/java/cn/edu/hfut/dmic/webcollector/crawldb/DBManager.java">
-      <provider selected="true" editor-type-id="text-editor">
-        <state vertical-scroll-proportion="0.5033113">
-          <caret line="38" column="0" selection-start-line="38" selection-start-column="0" selection-end-line="38" selection-end-column="0" />
-          <folding />
-        </state>
-      </provider>
-    </entry>
-  </component>
-</project>
\ No newline at end of file
diff --git a/WebCollector/WebCollector.iml b/WebCollector/WebCollector.iml
deleted file mode 100644
index 806026a9..00000000
--- a/WebCollector/WebCollector.iml
+++ /dev/null
@@ -1,63 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<module org.jetbrains.idea.maven.project.MavenProjectsManager.isMavenModule="true" type="JAVA_MODULE" version="4">
-  <component name="NewModuleRootManager" LANGUAGE_LEVEL="JDK_1_6" inherit-compiler-output="false">
-    <output url="file://$MODULE_DIR$/target/classes" />
-    <output-test url="file://$MODULE_DIR$/target/test-classes" />
-    <content url="file://$MODULE_DIR$">
-      <sourceFolder url="file://$MODULE_DIR$/src/main/java" isTestSource="false" />
-      <sourceFolder url="file://$MODULE_DIR$/src/main/resources" type="java-resource" />
-      <sourceFolder url="file://$MODULE_DIR$/src/test/java" isTestSource="true" />
-      <excludeFolder url="file://$MODULE_DIR$/target" />
-    </content>
-    <orderEntry type="inheritedJdk" />
-    <orderEntry type="sourceFolder" forTests="false" />
-    <orderEntry type="library" name="Maven: org.jsoup:jsoup:1.8.3" level="project" />
-    <orderEntry type="library" name="Maven: com.googlecode.juniversalchardet:juniversalchardet:1.0.3" level="project" />
-    <orderEntry type="library" name="Maven: log4j:log4j:1.2.17" level="project" />
-    <orderEntry type="library" name="Maven: junit:junit:4.11" level="project" />
-    <orderEntry type="library" name="Maven: org.hamcrest:hamcrest-core:1.3" level="project" />
-    <orderEntry type="library" name="Maven: org.json:json:20140107" level="project" />
-    <orderEntry type="library" name="Maven: com.sleepycat:je:5.0.73" level="project" />
-    <orderEntry type="library" name="Maven: org.slf4j:slf4j-api:1.7.9" level="project" />
-    <orderEntry type="library" name="Maven: org.slf4j:slf4j-log4j12:1.7.9" level="project" />
-    <orderEntry type="library" name="Maven: org.mongodb:mongo-java-driver:3.2.2" level="project" />
-    <orderEntry type="library" scope="PROVIDED" name="Maven: org.seleniumhq.selenium:selenium-java:2.44.0" level="project" />
-    <orderEntry type="library" scope="PROVIDED" name="Maven: org.seleniumhq.selenium:selenium-chrome-driver:2.44.0" level="project" />
-    <orderEntry type="library" scope="PROVIDED" name="Maven: org.seleniumhq.selenium:selenium-remote-driver:2.44.0" level="project" />
-    <orderEntry type="library" scope="PROVIDED" name="Maven: cglib:cglib-nodep:2.1_3" level="project" />
-    <orderEntry type="library" scope="PROVIDED" name="Maven: com.google.code.gson:gson:2.3" level="project" />
-    <orderEntry type="library" scope="PROVIDED" name="Maven: org.seleniumhq.selenium:selenium-api:2.44.0" level="project" />
-    <orderEntry type="library" scope="PROVIDED" name="Maven: com.google.guava:guava:18.0" level="project" />
-    <orderEntry type="library" scope="PROVIDED" name="Maven: org.seleniumhq.selenium:selenium-htmlunit-driver:2.44.0" level="project" />
-    <orderEntry type="library" scope="PROVIDED" name="Maven: net.sourceforge.htmlunit:htmlunit:2.15" level="project" />
-    <orderEntry type="library" scope="PROVIDED" name="Maven: xalan:xalan:2.7.1" level="project" />
-    <orderEntry type="library" scope="PROVIDED" name="Maven: xalan:serializer:2.7.1" level="project" />
-    <orderEntry type="library" scope="PROVIDED" name="Maven: commons-collections:commons-collections:3.2.1" level="project" />
-    <orderEntry type="library" scope="PROVIDED" name="Maven: org.apache.commons:commons-lang3:3.3.2" level="project" />
-    <orderEntry type="library" scope="PROVIDED" name="Maven: org.apache.httpcomponents:httpmime:4.3.3" level="project" />
-    <orderEntry type="library" scope="PROVIDED" name="Maven: commons-codec:commons-codec:1.9" level="project" />
-    <orderEntry type="library" scope="PROVIDED" name="Maven: net.sourceforge.htmlunit:htmlunit-core-js:2.15" level="project" />
-    <orderEntry type="library" scope="PROVIDED" name="Maven: xerces:xercesImpl:2.11.0" level="project" />
-    <orderEntry type="library" scope="PROVIDED" name="Maven: xml-apis:xml-apis:1.4.01" level="project" />
-    <orderEntry type="library" scope="PROVIDED" name="Maven: net.sourceforge.nekohtml:nekohtml:1.9.21" level="project" />
-    <orderEntry type="library" scope="PROVIDED" name="Maven: net.sourceforge.cssparser:cssparser:0.9.14" level="project" />
-    <orderEntry type="library" scope="PROVIDED" name="Maven: org.w3c.css:sac:1.3" level="project" />
-    <orderEntry type="library" scope="PROVIDED" name="Maven: commons-logging:commons-logging:1.1.3" level="project" />
-    <orderEntry type="library" scope="PROVIDED" name="Maven: org.eclipse.jetty:jetty-websocket:8.1.15.v20140411" level="project" />
-    <orderEntry type="library" scope="PROVIDED" name="Maven: org.eclipse.jetty:jetty-util:8.1.15.v20140411" level="project" />
-    <orderEntry type="library" scope="PROVIDED" name="Maven: org.eclipse.jetty:jetty-io:8.1.15.v20140411" level="project" />
-    <orderEntry type="library" scope="PROVIDED" name="Maven: org.eclipse.jetty:jetty-http:8.1.15.v20140411" level="project" />
-    <orderEntry type="library" scope="PROVIDED" name="Maven: org.apache.httpcomponents:httpclient:4.3.4" level="project" />
-    <orderEntry type="library" scope="PROVIDED" name="Maven: org.apache.httpcomponents:httpcore:4.3.2" level="project" />
-    <orderEntry type="library" scope="PROVIDED" name="Maven: org.seleniumhq.selenium:selenium-firefox-driver:2.44.0" level="project" />
-    <orderEntry type="library" scope="PROVIDED" name="Maven: commons-io:commons-io:2.4" level="project" />
-    <orderEntry type="library" scope="PROVIDED" name="Maven: org.apache.commons:commons-exec:1.1" level="project" />
-    <orderEntry type="library" scope="PROVIDED" name="Maven: org.seleniumhq.selenium:selenium-ie-driver:2.44.0" level="project" />
-    <orderEntry type="library" scope="PROVIDED" name="Maven: net.java.dev.jna:jna:3.4.0" level="project" />
-    <orderEntry type="library" scope="PROVIDED" name="Maven: net.java.dev.jna:platform:3.4.0" level="project" />
-    <orderEntry type="library" scope="PROVIDED" name="Maven: org.seleniumhq.selenium:selenium-safari-driver:2.44.0" level="project" />
-    <orderEntry type="library" scope="PROVIDED" name="Maven: org.seleniumhq.selenium:selenium-support:2.44.0" level="project" />
-    <orderEntry type="library" scope="PROVIDED" name="Maven: org.webbitserver:webbit:0.4.14" level="project" />
-    <orderEntry type="library" scope="PROVIDED" name="Maven: io.netty:netty:3.5.2.Final" level="project" />
-  </component>
-</module>
\ No newline at end of file
diff --git a/WebCollector/src/main/java/cn/edu/hfut/dmic/contentextractor/ContentExtractor.java b/WebCollector/src/main/java/cn/edu/hfut/dmic/contentextractor/ContentExtractor.java
index e697decc..c1b5995a 100644
--- a/WebCollector/src/main/java/cn/edu/hfut/dmic/contentextractor/ContentExtractor.java
+++ b/WebCollector/src/main/java/cn/edu/hfut/dmic/contentextractor/ContentExtractor.java
@@ -17,13 +17,6 @@
  */
 package cn.edu.hfut.dmic.contentextractor;
 
-import cn.edu.hfut.dmic.webcollector.net.HttpRequest;
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.Map;
-import java.util.concurrent.atomic.AtomicInteger;
-import java.util.regex.Matcher;
-import java.util.regex.Pattern;
 import org.jsoup.Jsoup;
 import org.jsoup.nodes.Document;
 import org.jsoup.nodes.Element;
@@ -34,6 +27,15 @@
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.concurrent.atomic.AtomicInteger;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import cn.edu.hfut.dmic.webcollector.net.HttpRequest;
+
 /**
  * ContentExtractor could extract content,title,time from news webpage
  *
@@ -42,6 +44,8 @@
 public class ContentExtractor {
 
     public static final Logger LOG = LoggerFactory.getLogger(ContentExtractor.class);
+    private static final Pattern TIME_PATTERN = Pattern.compile("[^0-9]+([1-2][0-9]{3})[^0-9]{1,5}?([0-1]?[0-9])[^0-9]{1,5}?([0-3][0-9])[^0-9]{1,5}([0-2][0-9]):([0-5][0-9])");
+    private static final Pattern DATE_PATTERN = Pattern.compile("[^0-9]+([1-2][0-9]{3})[^0-9]{1,5}?([0-1]?[0-9])[^0-9]{1,5}?([0-3][0-9])");
 
     protected Document doc;
 
@@ -197,8 +201,6 @@ public News getNews() throws Exception {
     }
 
     protected String getTime(Element contentElement) throws Exception {
-        String regex = "([1-2][0-9]{3})[^0-9]{1,5}?([0-1]?[0-9])[^0-9]{1,5}?([0-9]{1,2})[^0-9]{1,5}?([0-2]?[1-9])[^0-9]{1,5}?([0-9]{1,2})[^0-9]{1,5}?([0-9]{1,2})";
-        Pattern pattern = Pattern.compile(regex);
         Element current = contentElement;
         for (int i = 0; i < 2; i++) {
             if (current != null && current != doc.body()) {
@@ -213,8 +215,8 @@ protected String getTime(Element contentElement) throws Exception {
                 break;
             }
             String currentHtml = current.outerHtml();
-            Matcher matcher = pattern.matcher(currentHtml);
-            if (matcher.find()) {
+            Matcher matcher = TIME_PATTERN.matcher(currentHtml);
+            if (matcher.find() && matcher.groupCount() >= 6) {
                 return matcher.group(1) + "-" + matcher.group(2) + "-" + matcher.group(3) + " " + matcher.group(4) + ":" + matcher.group(5) + ":" + matcher.group(6);
             }
             if (current != doc.body()) {
@@ -231,8 +233,6 @@ protected String getTime(Element contentElement) throws Exception {
     }
 
     protected String getDate(Element contentElement) throws Exception {
-        String regex = "([1-2][0-9]{3})[^0-9]{1,5}?([0-1]?[0-9])[^0-9]{1,5}?([0-9]{1,2})";
-        Pattern pattern = Pattern.compile(regex);
         Element current = contentElement;
         for (int i = 0; i < 2; i++) {
             if (current != null && current != doc.body()) {
@@ -247,8 +247,8 @@ protected String getDate(Element contentElement) throws Exception {
                 break;
             }
             String currentHtml = current.outerHtml();
-            Matcher matcher = pattern.matcher(currentHtml);
-            if (matcher.find()) {
+            Matcher matcher = DATE_PATTERN.matcher(currentHtml);
+            if (matcher.find() && matcher.groupCount() >= 3) {
                 return matcher.group(1) + "-" + matcher.group(2) + "-" + matcher.group(3);
             }
             if (current != doc.body()) {
@@ -507,14 +507,14 @@ public static News getNewsByUrl(String url) throws Exception {
     }
 
     public static void main(String[] args) throws Exception {
-
-        News news = ContentExtractor.getNewsByUrl("http://www.huxiu.com/article/121959/1.html");
+        String url = "https://www.huxiu.com/article/167883.html";
+        News news = ContentExtractor.getNewsByUrl(url);
         System.out.println(news.getUrl());
         System.out.println(news.getTitle());
         System.out.println(news.getTime());
         System.out.println(news.getContent());
         //System.out.println(news.getContentElement());
-
+        System.out.println(ContentExtractor.getNewsByUrl("http://www.huxiu.com/article/121959/1.html").getTime());
         //System.out.println(news);
     }