diff --git a/.flattened-pom.xml b/.flattened-pom.xml
new file mode 100644
index 0000000..83765df
--- /dev/null
+++ b/.flattened-pom.xml
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+  <modelVersion>4.0.0</modelVersion>
+  <groupId>cn.linghang</groupId>
+  <artifactId>mywust</artifactId>
+  <version>0.0.1-fixed</version>
+  <packaging>pom</packaging>
+  <dependencies>
+    <dependency>
+      <groupId>org.projectlombok</groupId>
+      <artifactId>lombok</artifactId>
+      <version>1.18.22</version>
+      <scope>compile</scope>
+    </dependency>
+  </dependencies>
+</project>
diff --git a/mywust-core/.flattened-pom.xml b/mywust-core/.flattened-pom.xml
new file mode 100644
index 0000000..6a8b4e7
--- /dev/null
+++ b/mywust-core/.flattened-pom.xml
@@ -0,0 +1,58 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+  <modelVersion>4.0.0</modelVersion>
+  <groupId>cn.linghang</groupId>
+  <artifactId>mywust-core</artifactId>
+  <version>0.0.1-fixed</version>
+  <dependencies>
+    <dependency>
+      <groupId>cn.linghang</groupId>
+      <artifactId>mywust-network</artifactId>
+      <version>0.0.1-fixed</version>
+      <scope>compile</scope>
+    </dependency>
+    <dependency>
+      <groupId>cn.linghang</groupId>
+      <artifactId>mywust-util</artifactId>
+      <version>0.0.1-fixed</version>
+      <scope>compile</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.slf4j</groupId>
+      <artifactId>slf4j-api</artifactId>
+      <version>2.0.3</version>
+      <scope>compile</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.jsoup</groupId>
+      <artifactId>jsoup</artifactId>
+      <version>1.15.3</version>
+      <scope>compile</scope>
+    </dependency>
+    <dependency>
+      <groupId>cn.linghang</groupId>
+      <artifactId>mywust-model</artifactId>
+      <version>0.0.1-fixed</version>
+      <scope>compile</scope>
+    </dependency>
+    <dependency>
+      <groupId>com.fasterxml.jackson.core</groupId>
+      <artifactId>jackson-annotations</artifactId>
+      <version>2.14.0-rc1</version>
+      <scope>compile</scope>
+    </dependency>
+    <dependency>
+      <groupId>com.fasterxml.jackson.core</groupId>
+      <artifactId>jackson-databind</artifactId>
+      <version>2.14.0-rc1</version>
+      <scope>compile</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.projectlombok</groupId>
+      <artifactId>lombok</artifactId>
+      <version>1.18.22</version>
+      <scope>compile</scope>
+    </dependency>
+  </dependencies>
+</project>
diff --git a/mywust-core/pom.xml b/mywust-core/pom.xml
index 70d3af9..24fb9c8 100644
--- a/mywust-core/pom.xml
+++ b/mywust-core/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>mywust</artifactId>
         <groupId>cn.linghang</groupId>
-        <version>${rversion}</version>
+        <version>${revision}</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
@@ -14,13 +14,13 @@
         <dependency>
             <groupId>cn.linghang</groupId>
             <artifactId>mywust-network</artifactId>
-            <version>${parent.version}</version>
+            <version>${project.parent.version}</version>
             <scope>compile</scope>
         </dependency>
         <dependency>
             <groupId>cn.linghang</groupId>
             <artifactId>mywust-util</artifactId>
-            <version>${parent.version}</version>
+            <version>${project.parent.version}</version>
         </dependency>
 
         <dependency>
@@ -39,7 +39,7 @@
         <dependency>
             <groupId>cn.linghang</groupId>
             <artifactId>mywust-model</artifactId>
-            <version>${parent.version}</version>
+            <version>${project.parent.version}</version>
             <scope>compile</scope>
         </dependency>
         <dependency>
diff --git a/mywust-model/.flattened-pom.xml b/mywust-model/.flattened-pom.xml
new file mode 100644
index 0000000..716d5d0
--- /dev/null
+++ b/mywust-model/.flattened-pom.xml
@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+  <modelVersion>4.0.0</modelVersion>
+  <groupId>cn.linghang</groupId>
+  <artifactId>mywust-model</artifactId>
+  <version>0.0.1-fixed</version>
+  <dependencies>
+    <dependency>
+      <groupId>org.projectlombok</groupId>
+      <artifactId>lombok</artifactId>
+      <version>1.18.22</version>
+      <scope>compile</scope>
+    </dependency>
+  </dependencies>
+</project>
diff --git a/mywust-model/pom.xml b/mywust-model/pom.xml
index 22cb159..da1208c 100644
--- a/mywust-model/pom.xml
+++ b/mywust-model/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>mywust</artifactId>
         <groupId>cn.linghang</groupId>
-        <version>${rversion}</version>
+        <version>${revision}</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/mywust-network-httpclient/.flattened-pom.xml b/mywust-network-httpclient/.flattened-pom.xml
new file mode 100644
index 0000000..d558952
--- /dev/null
+++ b/mywust-network-httpclient/.flattened-pom.xml
@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+  <modelVersion>4.0.0</modelVersion>
+  <groupId>cn.linghang</groupId>
+  <artifactId>mywust-network-httpclient</artifactId>
+  <version>0.0.1-fixed</version>
+  <dependencies>
+    <dependency>
+      <groupId>org.projectlombok</groupId>
+      <artifactId>lombok</artifactId>
+      <version>1.18.22</version>
+      <scope>compile</scope>
+    </dependency>
+  </dependencies>
+</project>
diff --git a/mywust-network-httpclient/pom.xml b/mywust-network-httpclient/pom.xml
index 1b6d967..07191c8 100644
--- a/mywust-network-httpclient/pom.xml
+++ b/mywust-network-httpclient/pom.xml
@@ -6,7 +6,7 @@
     <parent>
         <artifactId>mywust</artifactId>
         <groupId>cn.linghang</groupId>
-        <version>${rversion}</version>
+        <version>${revision}</version>
     </parent>
     <artifactId>mywust-network-httpclient</artifactId>
 
diff --git a/mywust-network-okhttp/.flattened-pom.xml b/mywust-network-okhttp/.flattened-pom.xml
new file mode 100644
index 0000000..70cf94e
--- /dev/null
+++ b/mywust-network-okhttp/.flattened-pom.xml
@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+  <modelVersion>4.0.0</modelVersion>
+  <groupId>cn.linghang</groupId>
+  <artifactId>mywust-network-okhttp</artifactId>
+  <version>0.0.1-fixed</version>
+  <dependencies>
+    <dependency>
+      <groupId>com.squareup.okhttp3</groupId>
+      <artifactId>okhttp</artifactId>
+      <version>3.14.9</version>
+      <scope>compile</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.slf4j</groupId>
+      <artifactId>slf4j-api</artifactId>
+      <version>1.7.36</version>
+      <scope>compile</scope>
+    </dependency>
+    <dependency>
+      <groupId>cn.linghang</groupId>
+      <artifactId>mywust-network</artifactId>
+      <version>0.0.1-fixed</version>
+      <scope>compile</scope>
+    </dependency>
+    <dependency>
+      <groupId>cn.linghang</groupId>
+      <artifactId>mywust-util</artifactId>
+      <version>0.0.1-fixed</version>
+      <scope>compile</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.projectlombok</groupId>
+      <artifactId>lombok</artifactId>
+      <version>1.18.22</version>
+      <scope>compile</scope>
+    </dependency>
+  </dependencies>
+</project>
diff --git a/mywust-network-okhttp/pom.xml b/mywust-network-okhttp/pom.xml
index 3648da5..8a5cdfc 100644
--- a/mywust-network-okhttp/pom.xml
+++ b/mywust-network-okhttp/pom.xml
@@ -6,7 +6,7 @@
     <parent>
         <artifactId>mywust</artifactId>
         <groupId>cn.linghang</groupId>
-        <version>${rversion}</version>
+        <version>${revision}</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>mywust-network-okhttp</artifactId>
@@ -36,12 +36,12 @@
         <dependency>
             <groupId>cn.linghang</groupId>
             <artifactId>mywust-network</artifactId>
-            <version>${parent.version}</version>
+            <version>${project.parent.version}</version>
         </dependency>
         <dependency>
             <groupId>cn.linghang</groupId>
             <artifactId>mywust-util</artifactId>
-            <version>${parent.version}</version>
+            <version>${project.parent.version}</version>
             <scope>compile</scope>
         </dependency>
     </dependencies>
diff --git a/mywust-network/.flattened-pom.xml b/mywust-network/.flattened-pom.xml
new file mode 100644
index 0000000..8223d8e
--- /dev/null
+++ b/mywust-network/.flattened-pom.xml
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+  <modelVersion>4.0.0</modelVersion>
+  <groupId>cn.linghang</groupId>
+  <artifactId>mywust-network</artifactId>
+  <version>0.0.1-fixed</version>
+  <dependencies>
+    <dependency>
+      <groupId>cn.linghang</groupId>
+      <artifactId>mywust-util</artifactId>
+      <version>0.0.1-fixed</version>
+      <scope>compile</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.projectlombok</groupId>
+      <artifactId>lombok</artifactId>
+      <version>1.18.22</version>
+      <scope>compile</scope>
+    </dependency>
+  </dependencies>
+</project>
diff --git a/mywust-network/pom.xml b/mywust-network/pom.xml
index e6964ea..128cfe2 100644
--- a/mywust-network/pom.xml
+++ b/mywust-network/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>mywust</artifactId>
         <groupId>cn.linghang</groupId>
-        <version>${rversion}</version>
+        <version>${revision}</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
@@ -21,7 +21,7 @@
         <dependency>
             <groupId>cn.linghang</groupId>
             <artifactId>mywust-util</artifactId>
-            <version>${parent.version}</version>
+            <version>${project.parent.version}</version>
             <scope>compile</scope>
         </dependency>
     </dependencies>
diff --git a/mywust-test/src/test/java/ParseTest.java b/mywust-test/src/test/java/ParseTest.java
new file mode 100644
index 0000000..5d29fc0
--- /dev/null
+++ b/mywust-test/src/test/java/ParseTest.java
@@ -0,0 +1,12 @@
+import cn.linghang.mywust.core.exception.ParseException;
+import cn.linghang.mywust.core.parser.undergraduate.ExamInfoParser;
+import org.jsoup.Jsoup;
+
+import java.io.IOException;
+
+public class ParseTest {
+    public static void main(String[] args) throws IOException, ParseException {
+        ExamInfoParser parser = new ExamInfoParser();
+        System.out.println(parser.parse(Jsoup.connect("http://127.0.0.1/a.html").get().toString()));
+    }
+}
diff --git a/mywust-util/.flattened-pom.xml b/mywust-util/.flattened-pom.xml
new file mode 100644
index 0000000..f5ba227
--- /dev/null
+++ b/mywust-util/.flattened-pom.xml
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+  <modelVersion>4.0.0</modelVersion>
+  <groupId>cn.linghang</groupId>
+  <artifactId>mywust-util</artifactId>
+  <version>0.0.1-fixed</version>
+  <dependencies>
+    <dependency>
+      <groupId>commons-codec</groupId>
+      <artifactId>commons-codec</artifactId>
+      <version>1.15</version>
+      <scope>compile</scope>
+    </dependency>
+    <dependency>
+      <groupId>com.google.guava</groupId>
+      <artifactId>guava</artifactId>
+      <version>31.1-jre</version>
+      <scope>compile</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.projectlombok</groupId>
+      <artifactId>lombok</artifactId>
+      <version>1.18.22</version>
+      <scope>compile</scope>
+    </dependency>
+  </dependencies>
+</project>
diff --git a/mywust-util/pom.xml b/mywust-util/pom.xml
index a50efd3..42ae0fc 100644
--- a/mywust-util/pom.xml
+++ b/mywust-util/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>mywust</artifactId>
         <groupId>cn.linghang</groupId>
-        <version>${rversion}</version>
+        <version>${revision}</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/pom.xml b/pom.xml
index 6631f26..b207c4f 100644
--- a/pom.xml
+++ b/pom.xml
@@ -7,7 +7,7 @@
     <groupId>cn.linghang</groupId>
     <artifactId>mywust</artifactId>
     <packaging>pom</packaging>
-    <version>${rversion}</version>
+    <version>${revision}</version>
 
     <modules>
         <module>mywust-core</module>
@@ -28,7 +28,7 @@
     </dependencies>
 
     <properties>
-        <rversion>0.0.1</rversion>
+        <revision>0.0.1-fixed</revision>
 
         <lombok.version>1.18.22</lombok.version>
 
@@ -60,6 +60,31 @@
                     </execution>
                 </executions>
             </plugin>
+            <plugin>
+                <groupId>org.codehaus.mojo</groupId>
+                <artifactId>flatten-maven-plugin</artifactId>
+                <version>1.3.0</version>
+                <configuration>
+                </configuration>
+                <executions>
+                    <!-- enable flattening -->
+                    <execution>
+                        <id>flatten</id>
+                        <phase>process-resources</phase>
+                        <goals>
+                            <goal>flatten</goal>
+                        </goals>
+                    </execution>
+                    <!-- ensure proper cleanup -->
+                    <execution>
+                        <id>flatten.clean</id>
+                        <phase>clean</phase>
+                        <goals>
+                            <goal>clean</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
         </plugins>
     </build>
 </project>
\ No newline at end of file