Java操作Oracle事務，以轉賬為例。
轉賬之前

package translate.commit;import java.sql.Connection; import java.sql.DriverManager; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.sql.SQLException;public class CommitRollback {public static void main(String[] args) {giao();}public static void giao() {Connection conn = null;PreparedStatement ps = null;PreparedStatement ps1 = null;try {conn = getConn();// jack 給 rose 轉200 快String sql = "update stu set s_money = s_money - 200 where s_id = ?";// 預編譯SQL語句。ps = conn.prepareStatement(sql);ps.setInt(1, 1);// 不讓Java自動提交事務conn.setAutoCommit(false);int i = ps.executeUpdate();System.out.println(i>0 ? "轉賬成功" : "失敗");// 模擬異常。System.out.println(1/0);sql = "update stu set s_money = s_money + 200 where s_id = ?";ps1 = conn.prepareStatement(sql);ps1.setInt(1, 2);conn.setAutoCommit(false);int i1 = ps1.executeUpdate();System.out.println(i1>0 ? "到賬成功" : "失敗");// 手動提交事務 如果沒有異常，則可提交。conn.commit();} catch (Exception e) {try {// 程序由于算術錯誤 中斷 所以要撤回提交。conn.rollback();} catch (SQLException e1) {e1.printStackTrace();}e.printStackTrace();} finally {closeAll(conn, ps, null);try {if (ps1 != null)ps1.close();} catch (SQLException e) {e.printStackTrace();}}}public static Connection getConn() throws Exception {Class.forName("oracle.jdbc.OracleDriver");String url = "jdbc:oracle:thin:@127.0.0.1:1521:orcl";Connection conn = DriverManager.getConnection(url, "scott", "scott");return conn;}public static void closeAll(Connection conn, PreparedStatement ps, ResultSet rs) { try {if (rs != null)rs.close();if (ps != null)ps.close();if (conn != null)conn.close();} catch (SQLException e) {e.printStackTrace();}}}

執行之后

SQL里面的事務介紹如下：
SQL事務

總結

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