diff --git a/src/main/java/cn/whaifree/leetCode/Array/LeetCode215.java b/src/main/java/cn/whaifree/leetCode/Array/LeetCode215.java
index 0fba4dd..74a2a43 100644
--- a/src/main/java/cn/whaifree/leetCode/Array/LeetCode215.java
+++ b/src/main/java/cn/whaifree/leetCode/Array/LeetCode215.java
@@ -2,15 +2,49 @@ package cn.whaifree.leetCode.Array;
 
 import org.junit.Test;
 
-import java.util.Arrays;
-import java.util.Comparator;
-import java.util.PriorityQueue;
-import java.util.Random;
+import java.io.*;
+import java.util.*;
+import java.util.function.BiConsumer;
 
 import static org.junit.Assert.assertArrayEquals;
 
 public class LeetCode215 {
 
+    public static void main(String[] args) throws FileNotFoundException {
+        String name = "/Users/kyriewhluo/IdeaProjects/tsf/tsf-dispatch/src/main/resources/tsf-dispatch.yml";
+        // 读取每一行
+        HashMap<String, List<String>> map = new HashMap<>();
+        try (BufferedReader reader = new BufferedReader(new FileReader(name))) {
+            String line;
+            while ((line = reader.readLine()) != null) {
+                if (line.contains("tsf-resource")) {
+                    String[] split = line.split("/");
+                    String key = "/" + split[1] + "/" + split[2];
+                    List<String> orDefault = map.getOrDefault(key, new ArrayList<>());
+                    orDefault.add(line);
+                    map.put(key, orDefault);
+                }
+            }
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        }
+
+        map.forEach(new BiConsumer<String, List<String>>() {
+            @Override
+            public void accept(String s, List<String> strings) {
+                System.out.println("# key:" + s);
+                System.out.println("# size:" + strings.size());
+                for (String string : strings) {
+                    System.out.println(string);
+                }
+
+                for (int i = 0; i < 3; i++) {
+                    System.out.println();
+                }
+            }
+        });
+    }
+
 
     @Test
     public void sort_EmptyArray_ShouldHandleGracefull3y() {
diff --git a/src/main/java/cn/whaifree/tech/dataStructure/listSeries.java b/src/main/java/cn/whaifree/tech/dataStructure/listSeries.java
new file mode 100644
index 0000000..40a9c61
--- /dev/null
+++ b/src/main/java/cn/whaifree/tech/dataStructure/listSeries.java
@@ -0,0 +1,55 @@
+package cn.whaifree.tech.dataStructure;
+
+import org.junit.Test;
+
+import java.io.*;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.locks.ReentrantLock;
+
+public class listSeries {
+
+    @Test
+    public void test() throws IOException, ClassNotFoundException {
+
+        ReentrantLock reentrantLock = new ReentrantLock();
+
+    }
+    public static void main(String[] args) throws IOException, ClassNotFoundException {
+        List<User> o = new ArrayList<>();
+        o.add(new User(1, "110"));
+
+        try(FileOutputStream fileOutputStream = new FileOutputStream("./user.ser")) {
+            ObjectOutputStream objectOutputStream = new ObjectOutputStream(fileOutputStream);
+            objectOutputStream.writeObject(o);
+        }
+
+
+        // 恢复对象
+        try(FileInputStream fileInputStream = new FileInputStream("./user.ser")) {
+            ObjectInputStream objectInputStream = new ObjectInputStream(fileInputStream);
+            Object o1 = objectInputStream.readObject();
+            List<User> users = (List<User>) o1;
+            System.out.println(users);
+        }
+
+    }
+    static class User implements Serializable{
+        int age;
+        String name;
+
+        public User(int age, String name) {
+            this.age = age;
+            this.name = name;
+        }
+
+        @Override
+        public String toString() {
+            return "User{" +
+                    "age=" + age +
+                    ", name='" + name + '\'' +
+                    '}';
+        }
+    }
+
+}
diff --git a/user.ser b/user.ser
new file mode 100644
index 0000000..3dba2c6
Binary files /dev/null and b/user.ser differ