鍦↗ava涓紝update鏂规硶閫氬父鐢ㄦ潵鏇存柊鏁版嵁搴撲腑鐨勬暟鎹€傚叿浣撲娇鐢ㄦ柟娉曞涓嬶細

1. 棣栧厛锛岄渶瑕佸垱寤轰竴涓狢onnection瀵硅薄锛岀敤鏉ヤ笌鏁版嵁搴撳缓绔嬭繛鎺ャ€傚彲浠ヤ娇鐢ㄥ涓嬩唬鐮佹潵鍒涘缓Connection瀵硅薄锛?br/>
```java
Connection connection = DriverManager.getConnection(url, username, password);
```

鍏朵腑锛寀rl鏄暟鎹簱鐨勮繛鎺ュ瓧绗︿覆锛寀sername鍜宲assword鏄暟鎹簱鐨勭敤鎴峰悕鍜屽瘑鐮併€?br/>
2. 鍒涘缓涓€涓狿reparedStatement瀵硅薄锛岀敤鏉ユ墽琛孲QL璇彞銆傚彲浠ヤ娇鐢ㄥ涓嬩唬鐮佹潵鍒涘缓PreparedStatement瀵硅薄锛?br/>
```java
PreparedStatement statement = connection.prepareStatement(sql);
```

鍏朵腑锛宻ql鏄鎵ц鐨凷QL璇彞锛屽彲浠ヤ娇鐢ㄥ崰浣嶇(?)鏉ヤ唬鏇块渶瑕佹洿鏂扮殑鏁版嵁銆?br/>
3. 浣跨敤set鏂规硶璁剧疆鍗犱綅绗︾殑鍊笺€傚彲浠ヤ娇鐢ㄥ涓嬩唬鐮佹潵璁剧疆鍗犱綅绗︾殑鍊硷細

```java
statement.setXXX(index, value);
```

鍏朵腑锛孹XX鏄搴旀暟鎹被鍨嬬殑鏂规硶锛屾瘮濡俿etInt銆乻etString绛夛紱index鏄崰浣嶇鐨勪綅缃紝浠?寮€濮嬶紱value鏄鏇存柊鐨勬暟鎹殑鍊笺€?br/>
4. 璋冪敤executeUpdate鏂规硶鎵ц鏇存柊鎿嶄綔銆傚彲浠ヤ娇鐢ㄥ涓嬩唬鐮佹潵鎵ц鏇存柊鎿嶄綔锛?br/>
```java
int rowsAffected = statement.executeUpdate();
```

executeUpdate鏂规硶杩斿洖涓€涓猧nt鍊硷紝琛ㄧず鏇存柊鐨勮鏁般€?br/>
5. 鏈€鍚庯紝闇€瑕佸叧闂璓reparedStatement鍜孋onnection瀵硅薄锛岄噴鏀捐祫婧愩€傚彲浠ヤ娇鐢ㄥ涓嬩唬鐮佹潵鍏抽棴瀵硅薄锛?br/>
```java
statement.close();
connection.close();
```

浠ヤ笂灏辨槸Java涓娇鐢╱pdate鏂规硶鏉ユ洿鏂版暟鎹簱鐨勫熀鏈楠ゃ€傚叿浣撴牴鎹疄闄呮儏鍐碉紝鍙互鏍规嵁闇€瑕佽繘琛岄€傚綋鐨勮皟鏁村拰鎵╁睍銆?/p>