diff --git a/java_demo/chenmo b/java_demo/chenmo
new file mode 100644
index 0000000000000000000000000000000000000000..2145ef3d4ddfd52fbb9b47624f63122b93faa356
Binary files /dev/null and b/java_demo/chenmo differ
diff --git a/java_demo/pom.xml b/java_demo/pom.xml
index c2699ec5b04774d54ac7987c6dfea3c2b3049a9b..2fedad743a271559562bf9c274aab3ce00cee3df 100644
--- a/java_demo/pom.xml
+++ b/java_demo/pom.xml
@@ -1,5 +1,4 @@
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 
 	<groupId>com.cmower</groupId>
@@ -45,6 +44,20 @@
 			<version>1.18.6</version>
 			<scope>provided</scope>
 		</dependency>
+
+		<!-- https://mvnrepository.com/artifact/com.alibaba/fastjson -->
+		<dependency>
+			<groupId>com.alibaba</groupId>
+			<artifactId>fastjson</artifactId>
+			<version>1.2.54</version>
+		</dependency>
+		
+		<dependency>
+			<groupId>org.codehaus.groovy</groupId>
+			<artifactId>groovy-all</artifactId>
+			<version>2.4.7</version>
+		</dependency>
+
 	</dependencies>
 
 	<organization>
diff --git a/java_demo/src/main/java/com/cmower/java_demo/xuliehua1/Test.java b/java_demo/src/main/java/com/cmower/java_demo/xuliehua1/Test.java
new file mode 100644
index 0000000000000000000000000000000000000000..fc589e717e230caaa02409111501fa4ef6e88fa9
--- /dev/null
+++ b/java_demo/src/main/java/com/cmower/java_demo/xuliehua1/Test.java
@@ -0,0 +1,39 @@
+package com.cmower.java_demo.xuliehua1;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.ObjectInputStream;
+import java.io.ObjectOutputStream;
+import java.io.ObjectStreamField;
+import java.lang.reflect.Field;
+import java.lang.reflect.Modifier;
+import java.util.ArrayList;
+
+public class Test {
+	public static void main(String[] args) {
+// 初始化
+Wanger3 wanger = new Wanger3();
+wanger.setName("王二");
+wanger.setAge(18);
+System.out.println(wanger);
+
+// 把对象写到文件中
+try (ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream("chenmo"));) {
+	oos.writeObject(wanger);
+} catch (IOException e) {
+	e.printStackTrace();
+}
+
+// 从文件中读出对象
+try (ObjectInputStream ois = new ObjectInputStream(new FileInputStream(new File("chenmo")));) {
+	Wanger3 wanger1 = (Wanger3) ois.readObject();
+	System.out.println(wanger1);
+} catch (IOException | ClassNotFoundException e) {
+	e.printStackTrace();
+}
+
+	}
+
+}
diff --git a/java_demo/src/main/java/com/cmower/java_demo/xuliehua1/Wanger.java b/java_demo/src/main/java/com/cmower/java_demo/xuliehua1/Wanger.java
new file mode 100644
index 0000000000000000000000000000000000000000..6aaf65dbd53bd78d8cac08a832e8a0c6f05d3c79
--- /dev/null
+++ b/java_demo/src/main/java/com/cmower/java_demo/xuliehua1/Wanger.java
@@ -0,0 +1,48 @@
+package com.cmower.java_demo.xuliehua1;
+
+import java.io.Externalizable;
+import java.io.IOException;
+import java.io.ObjectInput;
+import java.io.ObjectOutput;
+
+class Wanger implements Externalizable {
+	private String name;
+	private int age;
+
+	public Wanger() {
+	}
+
+	public String getName() {
+		return name;
+	}
+
+	public void setName(String name) {
+		this.name = name;
+	}
+
+	public int getAge() {
+		return age;
+	}
+
+	public void setAge(int age) {
+		this.age = age;
+	}
+
+	@Override
+	public String toString() {
+		return "Wanger{" + "name=" + name + ",age=" + age + "}";
+	}
+
+@Override
+public void writeExternal(ObjectOutput out) throws IOException {
+	out.writeObject(name);
+	out.writeInt(age);
+}
+
+@Override
+public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
+	name = (String) in.readObject();
+    age = in.readInt();
+}
+
+}
diff --git a/java_demo/src/main/java/com/cmower/java_demo/xuliehua1/Wanger2.java b/java_demo/src/main/java/com/cmower/java_demo/xuliehua1/Wanger2.java
new file mode 100644
index 0000000000000000000000000000000000000000..55ab60d3b55cc84553ff77443db43133f0b88f22
--- /dev/null
+++ b/java_demo/src/main/java/com/cmower/java_demo/xuliehua1/Wanger2.java
@@ -0,0 +1,34 @@
+package com.cmower.java_demo.xuliehua1;
+
+import java.io.Serializable;
+
+@SuppressWarnings("serial")
+class Wanger2 implements Serializable {
+	private String name;
+	private int age;
+
+	public Wanger2() {
+	}
+
+	public String getName() {
+		return name;
+	}
+
+	public void setName(String name) {
+		this.name = name;
+	}
+
+	public int getAge() {
+		return age;
+	}
+
+	public void setAge(int age) {
+		this.age = age;
+	}
+
+	@Override
+	public String toString() {
+		return "Wanger{" + "name=" + name + ",age=" + age + "}";
+	}
+
+}
diff --git a/java_demo/src/main/java/com/cmower/java_demo/xuliehua1/Wanger3.java b/java_demo/src/main/java/com/cmower/java_demo/xuliehua1/Wanger3.java
new file mode 100644
index 0000000000000000000000000000000000000000..95c1ada4e615e23f601b4d6730bd230136fe48af
--- /dev/null
+++ b/java_demo/src/main/java/com/cmower/java_demo/xuliehua1/Wanger3.java
@@ -0,0 +1,35 @@
+package com.cmower.java_demo.xuliehua1;
+
+import java.io.Serializable;
+
+class Wanger3 implements Serializable {
+	private static final long serialVersionUID = 1L;
+	
+	private String name;
+	private int age;
+
+	public Wanger3() {
+	}
+
+	public String getName() {
+		return name;
+	}
+
+	public void setName(String name) {
+		this.name = name;
+	}
+
+	public int getAge() {
+		return age;
+	}
+
+	public void setAge(int age) {
+		this.age = age;
+	}
+
+	@Override
+	public String toString() {
+		return "Wanger{" + "name=" + name + ",age=" + age + "}";
+	}
+
+}