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java鎵嬪姩鎻愪氦浜嬪姟鎬庝箞瀹炵幇

扬州沐宇科技
2023-11-21 09:33:02
Java

鍦↗ava涓紝鎵嬪姩鎻愪氦浜嬪姟鍙互閫氳繃浠ヤ笅姝ラ瀹炵幇锛?br/>1. 鑾峰彇鏁版嵁搴撹繛鎺ュ璞★細浣跨敤JDBC鎴栬繛鎺ユ睜鑾峰彇鏁版嵁搴撹繛鎺ュ璞★紝濡俙Connection connection = DriverManager.getConnection(url, username, password);`
2. 璁剧疆鑷姩鎻愪氦涓篺alse锛氶粯璁ゆ儏鍐典笅锛孞DBC杩炴帴鏄嚜鍔ㄦ彁浜や簨鍔$殑锛岄渶灏嗗叾璁剧疆涓烘墜鍔ㄦ彁浜わ紝濡俙connection.setAutoCommit(false);`
3. 鎵цSQL璇彞锛氫娇鐢╜Statement`鎴朻PreparedStatement`瀵硅薄鎵ц鏁版嵁搴撴搷浣滐紝濡俙statement.executeUpdate(sql);`
4. 鎻愪氦浜嬪姟锛氶€氳繃`commit`鏂规硶鎵嬪姩鎻愪氦浜嬪姟锛屽`connection.commit();`
5. 鎹曡幏寮傚父骞跺洖婊氫簨鍔★細濡傛灉鍙戠敓寮傚父锛屽彲浠ラ€氳繃`catch`鍧楁崟鑾峰紓甯革紝鐒跺悗璋冪敤`rollback`鏂规硶鍥炴粴浜嬪姟锛屽`connection.rollback();`
6. 鍏抽棴杩炴帴锛氬湪浜嬪姟鎻愪氦鎴栧洖婊氬悗锛屽叧闂暟鎹簱杩炴帴锛屽`connection.close();`
涓嬮潰鏄竴涓畬鏁寸殑绀轰緥锛?br/>

try {

聽聽聽聽//聽鑾峰彇鏁版嵁搴撹繛鎺ュ璞?/p>

聽聽聽聽Connection聽connection聽=聽DriverManager.getConnection(url,聽username,聽password);

聽聽聽聽//聽璁剧疆鑷姩鎻愪氦涓篺alse

聽聽聽聽connection.setAutoCommit(false);

聽聽聽聽

聽聽聽聽//聽鎵цSQL璇彞

聽聽聽聽Statement聽statement聽=聽connection.createStatement();

聽聽聽聽statement.executeUpdate(sql);

聽聽聽聽

聽聽聽聽//聽鎻愪氦浜嬪姟

聽聽聽聽connection.commit();

聽聽聽聽

聽聽聽聽//聽鍏抽棴杩炴帴

聽聽聽聽connection.close(); }聽catch聽(SQLException聽e)聽{

聽聽聽聽//聽鍙戠敓寮傚父鏃跺洖婊氫簨鍔?/p>

聽聽聽聽connection.rollback();

聽聽聽聽e.printStackTrace();

聽聽聽聽//聽鍏抽棴杩炴帴

聽聽聽聽connection.close(); }

娉ㄦ剰锛氬湪鎵嬪姩鎻愪氦浜嬪姟鏃讹紝闇€瑕佺‘淇濆湪鍙戠敓寮傚父鏃惰兘澶熸纭湴鍥炴粴浜嬪姟锛屽苟鍦ㄦ棤璁烘槸鍚﹀彂鐢熷紓甯搁兘鑳芥纭湴鍏抽棴鏁版嵁搴撹繛鎺ャ€?br/>

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