修复所有数据库性能问题

WebRoot/JSPhandle/user_delete.jsp

@@ -37,6 +37,7 @@
 		String use = "root";
 		String password = "";
 		Class.forName(driver);
+		try{
 		Connection conn = DriverManager.getConnection(url, use, password);
 		PreparedStatement sql = conn
 				.prepareStatement("delete from user where userName=?");
@@ -47,6 +48,9 @@
 		}
 		sql.close();
 		conn.close();
+		} catch (Exception ex) {
+			ex.printStackTrace();
+		}
 	%>
 	<!-- 判断是否是插入成功 -->
 	<%