JDBC批理更新示例
发布时间:2020-12-14 23:26:59 所属栏目:Java 来源:网络整理
导读:今天PHP站长网 52php.cn把收集自互联网的代码分享给大家,仅供参考。 ConnectionObject.java public class ConnectionObject {static String DB_DRIVER = "com.mysql.jdbc.Driver";static String DB_CONNECTION = "jdbc:m
以下代码由PHP站长网 52php.cn收集自互联网 现在PHP站长网小编把它分享给大家,仅供参考
ConnectionObject.java
public class ConnectionObject { static String DB_DRIVER = "com.mysql.jdbc.Driver"; static String DB_CONNECTION = "jdbc:mysql://localhost:3306/test"; static String DB_USER = "userName"; static String DB_PASSWORD = "password"; public static Connection getConnection() { Connection connection = null; Class.forName(DB_DRIVER); connection = DriverManager.getConnection(DB_CONNECTION,DB_USER,DB_PASSWORD); return connection; } } public void batchUpdateUsingPreparedStatement() throws SQLException { int[] result = null; String SQL = "update person set firstName=?,lastName=? where id=?"; // '?' is the placeholder for the parameter try { PreparedStatement stmt = connection.prepareStatement(SQL); connection.setAutoCommit(false); stmt.setString(1,"Abc"); // Value for the first parameter,namely 'firstName' stmt.setString(2,"Def"); // Value for the second parameter,namely 'lastName' stmt.setInt(3,1); // Value for the third parameter,namely 'id' stmt.addBatch(); // Add to Batch stmt.setString(1,"Xyz"); stmt.setString(2,"Uvw"); stmt.setInt(3,2); stmt.addBatch(); // Add second query to the Batch result = stmt.executeBatch(); // execute the Batch and commit connection.commit(); } catch (SQLException e) { connection.rollback(); e.printStackTrace(); } finally { if (connection != null) connection.close(); } System.out.println("Number of rows affected: " + result.length); } 以上内容由PHP站长网【52php.cn】收集整理供大家参考研究 如果以上内容对您有帮助,欢迎收藏、点赞、推荐、分享。 (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |