修复登录数据库性能错误

WebRoot/JSPhandle/login.jsp

@@ -25,11 +25,10 @@
 		String users = request.getParameter("inputUser");
 		String pass = request.getParameter("inputPassword");
 		boolean flag = false;
-		PreparedStatement sql = null;
-		ResultSet rs = null;
-		Connection conn = null;
-		PreparedStatement vipsql = null;
-		ResultSet viprs = null;
+		
+		
+		
+		
 		
 		session.setMaxInactiveInterval(1440);
 	%>
@@ -40,6 +39,10 @@
 		String use = "root";
 		String password = "";
 		Class.forName(driver);
+		try {
+		PreparedStatement sql = null;
+		Connection conn = null;
+		ResultSet rs = null;
 		conn = DriverManager.getConnection(url, use, password);
 		sql = conn.prepareStatement("select * from user where userName=? and password=?");
 		sql.setString(1, users);
@@ -50,9 +53,18 @@
 		}
 		rs.close();
 		sql.close();
+		conn.close();
+		
+		} catch (Exception ex) {
+			ex.printStackTrace();
+		}
+		
 	%>
 	<%
 		try {
+		PreparedStatement vipsql = null;
+		ResultSet viprs = null;
+		Connection conn = null;
 			vipsql = conn.prepareStatement(
 					"select userName,case when VIP = 1 then 'VIP用户' else '普通用户' end as VIP,case when Administrator = 1 then '管理员' else '' end as Administrator from show_user where userName=?");
 			vipsql.setString(1, users);
@@ -63,6 +75,9 @@
 				session.setAttribute("VIPuser", vipinfo);
 				session.setAttribute("Adminuser", adminfo);
 			}
+			viprs.close();
+		vipsql.close();
+		conn.close();
 		} catch (Exception ex) {
 			ex.printStackTrace();
 		}
@@ -80,11 +95,9 @@
 	<jsp:forward page="login_fail.jsp" />
 	<%
 		}
-		viprs.close();
-		vipsql.close();
-		rs.close();
-		sql.close();
-		conn.close();
+		
+		
+		
 	%>
 </body>
 </html>