diff --git a/src/main/java/minsecurity/identity/persist/sqlite/Sqlite.java b/src/main/java/minsecurity/identity/persist/sqlite/Sqlite.java
index 854ab5c..0b5debd 100644
--- a/src/main/java/minsecurity/identity/persist/sqlite/Sqlite.java
+++ b/src/main/java/minsecurity/identity/persist/sqlite/Sqlite.java
@@ -1,4 +1,16 @@
 package minsecurity.identity.persist.sqlite;
 
+/*
+ * @Author: zhengqi wu
+ * @Description: Sqlite封装
+ * @Version: 1.0.0
+ * @Date: 22:34 2021/04/01
+ * @Copyright: MIN-Group；国家重大科技基础设施——未来网络北大实验室；深圳市信息论与未来网络重点实验室
+ */
+
 public class Sqlite {
+
+    public static String home(){
+        return "";
+    }
 }
diff --git a/src/main/java/minsecurity/identity/persist/sqlite/SqliteUtil.java b/src/main/java/minsecurity/identity/persist/sqlite/SqliteUtil.java
new file mode 100644
index 0000000..216e93b
--- /dev/null
+++ b/src/main/java/minsecurity/identity/persist/sqlite/SqliteUtil.java
@@ -0,0 +1,32 @@
+package minsecurity.identity.persist.sqlite;
+
+import java.io.File;
+
+/*
+ * @Author: zhengqi wu
+ * @Description: sqlite工具类封装
+ * @Version: 1.0.0
+ * @Date: 10:34 2021/03/10
+ * @Copyright: MIN-Group；国家重大科技基础设施——未来网络北大实验室；深圳市信息论与未来网络重点实验室
+ */
+public final class SqliteUtil {
+    // Home returns the home directory for the executing user.
+    //
+    // This uses an OS-specific method for discovering the home directory.
+    // An error is returned if a home directory cannot be detected.
+    public static String home()
+    {
+        String usrHome = System.getProperty("user.home");
+        return usrHome;
+    }
+
+    /**
+     * 判断文件是否存在
+     * @param path 特定文件路径
+     * @return 判断结果
+     */
+    public static boolean pathExists(String path){
+        File file = new File(path);
+        return file.exists();
+    }
+}
diff --git a/src/main/java/minsecurity/identity/persist/sqlite/SqliteUtils.java b/src/main/java/minsecurity/identity/persist/sqlite/SqliteUtils.java
deleted file mode 100644
index ba47e6f..0000000
--- a/src/main/java/minsecurity/identity/persist/sqlite/SqliteUtils.java
+++ /dev/null
@@ -1,4 +0,0 @@
-package minsecurity.identity.persist.sqlite;
-
-public class SqliteUtils {
-}
diff --git a/src/test/java/minsecurity/identity/sqlite/SqliteTest.java b/src/test/java/minsecurity/identity/sqlite/SqliteTest.java
new file mode 100644
index 0000000..8f2f170
--- /dev/null
+++ b/src/test/java/minsecurity/identity/sqlite/SqliteTest.java
@@ -0,0 +1,14 @@
+package minsecurity.identity.sqlite;
+
+import minsecurity.identity.persist.sqlite.SqliteUtil;
+import org.junit.Test;
+
+import static org.junit.Assert.assertFalse;
+
+public class SqliteTest {
+    @Test
+    public void testHome(){
+        System.out.println(SqliteUtil.home());
+        assertFalse(SqliteUtil.pathExists("/aaa/1.txt"));
+    }
+}