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Code
import sun.misc.BASE64Encoder;
import sun.misc.BASE64Decoder;
import javax.crypto.*;
import javax.crypto.spec.DESKeySpec;
import javax.crypto.spec.IvParameterSpec;
import java.security.Key;
import java.security.spec.AlgorithmParameterSpec;
/**
* ʹÓÃDES¼ÓÃܺͽâÃܵķ½·¨
* @author:azhong
*User: Administrator
* Date: 2007-10-27
* Time: 10:54:36
* */
public class CryptoTools {
private final byte [] DESkey = {};//ÉèÖÃÃÜÔ¿£¬ÂÔÈ¥
private final byte[] DESIV = {};//ÉèÖÃÏòÁ¿£¬ÂÔÈ¥
private AlgorithmParameterSpec iv =null;//¼ÓÃÜËã·¨µÄ²ÎÊý½Ó¿Ú£¬IvParameterSpecÊÇËüµÄÒ»¸öʵÏÖ
private Key key =null;
public CryptoTools() throws Exception {
DESKeySpec keySpec = new DESKeySpec(DESkey);//ÉèÖÃÃÜÔ¿²ÎÊý
iv = new IvParameterSpec(DESIV);//ÉèÖÃÏòÁ¿
SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");//»ñµÃÃÜÔ¿¹¤³§
key = keyFactory.generateSecret(keySpec);//µÃµ½ÃÜÔ¿¶ÔÏó
}
public String encode(String data) throws Exception {
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Categories of Java HotSpot VM Options
Standard options recognized by the Java HotSpot VM are described on the Java Application Launcher reference pages for Windows
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create or replace procedure updateProject is
begin
update project p set p.total_intend_gather =
(select sum(ig.gather_sum) from intend_gather ig where ig.project_number=p.project_number);
up ......