基本项目结构完成

db.py

@@ -0,0 +1,77 @@
+import sqlite3, configparser, shortuuid
+
+config = configparser.ConfigParser()
+config.read("./conf/app.ini")
+
+
+def getConn():
+    return sqlite3.connect(config.get("database", "path"))
+
+
+def init():
+    conn = getConn()
+    c = conn.cursor()
+    c.execute(
+        """
+    CREATE TABLE IF NOT EXISTS Metadata  (
+    num INTEGER PRIMARY KEY AUTOINCREMENT,
+    id TEXT NOT NULL,
+    filename TEXT NOT NULL
+    );
+    """
+    )
+    conn.commit()
+    conn.close()
+
+
+# 查找文件信息
+def searchByid(id: str):
+    conn = getConn()
+    c = conn.cursor()
+    cursor = c.execute("SELECT * FROM Metadata WHERE id = ?", (id,))
+    out = []
+    for row in cursor:
+        out.append(row)
+    conn.close()
+    return out
+
+# 查找文件信息
+def searchByid(filename: str):
+    conn = getConn()
+    c = conn.cursor()
+    cursor = c.execute("SELECT * FROM Metadata WHERE filename = ?", (filename,))
+    out = []
+    for row in cursor:
+        out.append(row)
+    conn.close()
+    return out
+
+
+# 在数据库中添加一个新的文件记录
+def newFile(filename: str):
+    suuid = shortuuid.random(8)
+    conn = getConn()
+    c = conn.cursor()
+    c.execute(
+        """
+    INSERT INTO Metadata 
+    (id, filename) 
+    VALUES 
+    (?, ?);
+    """,
+        (suuid, filename),
+    )
+    conn.commit()
+    conn.close()
+    return suuid
+
+# 获取文件元数据
+def getMetadata(form:int,num:int):
+    conn = getConn()
+    c = conn.cursor()
+    cursor = c.execute("SELECT * FROM Metadata ORDER BY num desc LIMIT ?, ?",(form, num))
+    out = []
+    for row in cursor:
+        out.append(list(row))
+    conn.close()
+    return out