From cd33808ce0cf77ac008e58dd557a9375f1758447 Mon Sep 17 00:00:00 2001
From: pfu2aoslz <2269185321@qq.com>
Date: Wed, 5 Jan 2022 08:42:33 +0800
Subject: [PATCH] ADD file via upload

---
 code/Dao.java | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 code/Dao.java

diff --git a/code/Dao.java b/code/Dao.java
new file mode 100644
index 0000000..a1413ab
--- /dev/null
+++ b/code/Dao.java
@@ -0,0 +1,27 @@
+package com.dao;
+import java.sql.*;
+import javax.sql.DataSource;
+import javax.naming.*;
+public interface Dao {
+    public static DataSource getDataSource(){
+	   DataSource dataSource = null;
+	   try {
+	      Context context = new InitialContext();
+	      dataSource = 
+            (DataSource)context.lookup("java:comp/env/jdbc/webstoreDS");
+	  }catch(NamingException ne){
+	     System.out.println("异常:"+ne);
+	  }
+	  return dataSource;
+	}
+    public default Connection getConnection() throws SQLException {
+	   DataSource dataSource = getDataSource();
+	   Connection conn = null;
+	   try{
+		   conn =  dataSource.getConnection(); 
+	   }catch(SQLException sqle){
+		   System.out.println("异常:"+sqle);  
+	   }
+	   return  conn;
+   }	
+}