diff --git a/WebContent/admin/cardborrow.jsp b/WebContent/admin/cardborrow.jsp
index ca00f39..3255d2e 100644
--- a/WebContent/admin/cardborrow.jsp
+++ b/WebContent/admin/cardborrow.jsp
@@ -1,6 +1,6 @@
 <%@page import="javabean.Util"%>
 <%@page import="java.sql.PreparedStatement"%>
-<%@page import="com.mysql.jdbc.Connection"%>
+<%@page import="java.sql.Connection"%>
 <%@page import="javabean.Base"%>
 <%@page import="java.sql.ResultSet"%>
 <%@page import="javabean.JDBCBean"%>
diff --git a/src/javabean/TestConnection.java b/src/javabean/TestConnection.java
deleted file mode 100644
index 5aaba76..0000000
--- a/src/javabean/TestConnection.java
+++ /dev/null
@@ -1,48 +0,0 @@
-package javabean;
-
-import java.sql.PreparedStatement;
-import java.sql.ResultSet;
-import java.sql.SQLException;
-
-import java.sql.Connection;
-
-public class TestConnection {
-	public static void main(String[] args) throws ClassNotFoundException, SQLException {
-		// 获取rule
-		Connection connection = null;
-		PreparedStatement  pstmt = null;
-		ResultSet resultSet = null;
-		int result = 0;
-		String password = "1234";
-		String reader = "1234";
-		String rule_id = "1";
-		String status = "1";
-		connection = (Connection) Base.getConnection();
-		String sql = "insert into borrow_card(password, reader, rule_id, status) values(?,?,?,?)";
-		pstmt = connection.prepareStatement(sql);
-		pstmt.setString(1, password);
-		pstmt.setString(2, reader);
-		pstmt.setString(3, rule_id);
-		pstmt.setString(4, status);
-		result = pstmt.executeUpdate();
-		System.out.println(result);
-		//获取id
-		//connection1= (Connection) Base.getConnection();
-		String findIdSql = "select id from borrow_card where password=? and reader=? and rule_id=? and status=? limit 1";
-		pstmt = connection.prepareStatement(findIdSql);
-		pstmt.setString(1, password);
-		pstmt.setString(2, reader);
-		pstmt.setString(3, rule_id);
-		pstmt.setString(4, status);
-//		pstmt1 = connection.prepareStatement(findIdSql);
-//		pstmt1.setString(1, password);
-//		pstmt1.setString(2, reader);
-//		pstmt1.setString(3, rule_id);
-//		pstmt1.setString(4, status);
-		resultSet = pstmt.executeQuery();
-		while(resultSet.next()) {
-			System.out.println(resultSet.getString("id"));
-		}
-		
-	}
-}
diff --git a/src/servlet/admin/CardList.java b/src/servlet/admin/CardList.java
index 592094f..ad11013 100644
--- a/src/servlet/admin/CardList.java
+++ b/src/servlet/admin/CardList.java
@@ -25,7 +25,7 @@ import net.sf.json.JSONObject;
 public class CardList extends HttpServlet {
 	@Override
 	protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
-		resp.setContentType("application/json; charset:utf8");
+		resp.setContentType("application/json; charset=utf8");
 		// 接收参数
 		String limit = req.getParameter("limit");
 		String page = req.getParameter("page");