MD5密码隐藏

技术2022-07-13 63

log4j.properties：

# DEBUG\u8BBE\u7F6E\u8F93\u51FA\u65E5\u5FD7\u7EA7\u522B\uFF0C\u7531\u4E8E\u4E3ADEBUG\uFF0C\u6240\u4EE5ERROR\u3001WARN\u548CINFO \u7EA7\u522B\u65E5\u5FD7\u4FE1\u606F\u4E5F\u4F1A\u663E\u793A\u51FA\u6765 log4j.rootLogger=DEBUG,Console,RollingFile #\u5C06\u65E5\u5FD7\u4FE1\u606F\u8F93\u51FA\u5230\u63A7\u5236\u53F0 log4j.appender.Console=org.apache.log4j.ConsoleAppender log4j.appender.Console.layout=org.apache.log4j.PatternLayout log4j.appender.Console.layout.ConversionPattern= [%-5p]-[%d{yyyy-MM-dd HH:mm:ss}] -%l -%m%n #\u5C06\u65E5\u5FD7\u4FE1\u606F\u8F93\u51FA\u5230\u64CD\u4F5C\u7CFB\u7EDFD\u76D8\u6839\u76EE\u5F55\u4E0B\u7684log.log\u6587\u4EF6\u4E2D log4j.appender.RollingFile=org.apache.log4j.DailyRollingFileAppender log4j.appender.RollingFile.File=D://log.log log4j.appender.RollingFile.layout=org.apache.log4j.PatternLayout log4j.appender.RollingFile.layout.ConversionPattern=%d [%t] %-5p %-40.40c %X{traceId}-%m%n

DBLink.java：

package com.jd.tool.db; import java.sql.Connection; import java.sql.DriverManager; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.sql.SQLException; import java.sql.Statement; import org.apache.log4j.Logger; import com.jd.tool.PropertiesTool; /** * 鏁版嵁搴撶鐞嗗伐鍏风被 * * @author GaoHuanjie */ public class DBLink { private Logger logger = Logger.getLogger(DBLink.class); /** * 鑾峰彇鏁版嵁搴撹繛鎺� * * @author GaoHuanjie */ private Connection getConnection() { try { Class.forName("com.mysql.jdbc.Driver");//鍔犺浇椹卞姩 String userName = PropertiesTool.getValue("db.username"); String password = PropertiesTool.getValue("db.password"); String url = PropertiesTool.getValue("db.url"); return DriverManager.getConnection(url, userName, password);//鑾峰彇杩炴帴 } catch (Exception e) { logger.debug(e.getMessage(), e); } return null; } /** * 鍒ゆ柇SQL璇彞鏄惁鑳芥煡鍑烘暟鎹� * * @author GaoHuanjie */ public boolean exist(String sql) { Connection connection = null; Statement statement =null; ResultSet resultSet=null; try { connection = getConnection();//鑾峰彇杩炴帴 statement = connection.createStatement(); resultSet= statement.executeQuery(sql);//鎵цsql,灏嗘煡璇㈢殑鏁版嵁瀛樺埌ResultSet绫诲瀷鐨勫彉閲忎腑 return resultSet.next(); } catch (Exception e) { logger.debug(e.getMessage(), e); }finally { close(resultSet,statement,connection); } return false; } /** * 鍒ゆ柇SQL璇彞鏄惁鑳芥煡鍑烘暟鎹� * * @author GaoHuanjie */ public boolean exist(String sql, Object ...params) { Connection connection = null; PreparedStatement preparedStatement =null; ResultSet resultSet=null; try { connection = getConnection();//鑾峰彇杩炴帴 preparedStatement = connection.prepareStatement(sql); for (int i = 0; i < params.length; i++) { preparedStatement.setObject(i+1, params[i]); } resultSet= preparedStatement.executeQuery();//鎵цsql,灏嗘煡璇㈢殑鏁版嵁瀛樺埌ResultSet绫诲瀷鐨勫彉閲忎腑 return resultSet.next(); } catch (Exception e) { logger.debug(e.getMessage(), e); }finally { close(resultSet,preparedStatement,connection); } return false; } /** * 鏌ヨ鏁版嵁 * * @author GaoHuanjie */ public void select(String sql,IRowMapper rowMapper) {//鎺ュ彛鏃犳硶鍒涘缓瀵硅薄锛屾墍浠owMapper鍙傛暟涓�瀹氭寚鍚慖RowMapper鎺ュ彛瀹炵幇绫诲璞� Connection connection = null; Statement statement =null; ResultSet resultSet=null; try { connection = getConnection();//鑾峰彇杩炴帴 statement = connection.createStatement(); resultSet= statement.executeQuery(sql);//鎵цsql,灏嗘煡璇㈢殑鏁版嵁瀛樺埌ResultSet绫诲瀷鐨勫彉閲忎腑 rowMapper.rowMapper(resultSet);//鍥犱负rowMapper鍙傛暟鎸囧悜IRowMapper鎺ュ彛瀹炵幇绫诲璞★紝鎵�浠ユ澶勫皢璋冪敤鎺ュ彛瀹炵幇绫讳腑鎵�瀹炵幇鐨剅owMapper鏂规硶澶氭�� } catch (Exception e) { logger.debug(e.getMessage(), e); }finally {//閲婃斁璧勬簮 close(resultSet,statement,connection); } } /** * 鏌ヨ鏁版嵁 * * @author GaoHuanjie */ public void select(String sql,IRowMapper rowMapper,Object ...params) { Connection connection = null; PreparedStatement preparedStatement =null; ResultSet resultSet=null; try { connection = getConnection();//鑾峰彇杩炴帴 preparedStatement= connection.prepareStatement(sql);//鍚湁锛熷彿鍗犱綅绗︾殑sql for (int i = 0; i < params.length; i++) { preparedStatement.setObject(i+1, params[i]);//涓猴紵鍙疯祴鍊� } resultSet= preparedStatement.executeQuery();//鎵цsql rowMapper.rowMapper(resultSet);//鍥犱负rowMapper鍙傛暟鎸囧悜IRowMapper鎺ュ彛瀹炵幇绫诲璞★紝鎵�浠ユ澶勫皢璋冪敤鎺ュ彛瀹炵幇绫讳腑鎵�瀹炵幇鐨剅owMapper鏂规硶澶氭�� } catch (Exception e) { logger.debug(e.getMessage(), e); }finally {//閲婃斁璧勬簮 close(resultSet,preparedStatement,connection); } } /** * 淇敼锛坕nsert銆乽pdate鍜宒elete锛夋暟鎹� * * @author GaoHuanjie */ public boolean update(String sql) { Connection connection = null; Statement statement = null; try { connection = getConnection();//鑾峰彇鏁版嵁搴撹繛鎺ュ璞★紝涓�涓璞¤〃绀轰竴娆℃暟鎹簱杩炴帴 statement = connection.createStatement();//鑾峰彇Statement瀵硅薄 int result = statement.executeUpdate(sql);//鎵цsql璇彞锛岃繑鍥炲彈褰卞搷鐨勮鏁帮紝浠呴檺浜庢暟鎹甶nsert銆乽pdate鍜宒elete return result>0;//澶勭悊缁撴灉 } catch (Exception e) { logger.debug(e.getMessage(), e); }finally {//鍗充究鏈夊紓甯镐篃浼氭墽琛屼唬鐮� close(statement,connection); } return false; } /** * 淇敼锛坕nsert銆乽pdate鍜宒elete锛夋暟鎹� * * @author GaoHuanjie */ public boolean update(String sql,Object ...params) { Connection connection= null; PreparedStatement preparedStatement= null; try { connection= getConnection(); preparedStatement= connection.prepareStatement(sql);//鍚湁锛熷彿鍗犱綅绗︾殑sql for (int i = 0; i < params.length; i++) { preparedStatement.setObject(i+1, params[i]);//涓猴紵鍙疯祴鍊� } return preparedStatement.executeUpdate()>0; } catch (Exception e) { logger.debug(e.getMessage(), e); }finally { close(preparedStatement,connection); } return false; } /** * 閲婃斁璧勬簮 * * @author GaoHuanjie */ private void close(Statement statement,Connection connection) { try { if(statement!=null) {//鏈夊彲鑳界敱浜庡紓甯稿鑷磗tatement娌℃湁璧嬪�硷紝姣斿url鍑洪敊 statement.close(); } } catch (SQLException e) { logger.debug(e.getMessage(), e); } try { if(connection!=null) { connection.close(); } } catch (SQLException e) { logger.debug(e.getMessage(), e); } } /** * 閲婃斁璧勬簮 * * @author GaoHuanjie */ private void close(ResultSet resultSet,Statement statement,Connection connection) {//閲嶈浇 try { if(resultSet!=null) { resultSet.close(); } } catch (SQLException e) { logger.debug(e.getMessage(), e); } close(statement,connection); } }

IRowMapper.java：

package com.jd.tool.db; import java.sql.ResultSet; public interface IRowMapper { void rowMapper(ResultSet rs); }

PropertiesTool.java：

package com.jd.tool; import java.io.IOException; import java.io.InputStream; import java.util.Properties; public class PropertiesTool { private static Properties properties = new Properties(); static { InputStream inputStream = PropertiesTool.class.getClassLoader().getResourceAsStream("db.properties");//灏哾b.properties鍙樹负javaIO娴佸璞� try { properties.load(inputStream); } catch (IOException e) { e.printStackTrace(); } } public static String getValue(String key) { return properties.getProperty(key); } }

MD5Tool.java：

package com.jd.tool; import java.math.BigInteger; import java.security.MessageDigest; public class MD5Tool { public static String encrypt(String password) { byte[] bytes = null; try { MessageDigest messageDigest = MessageDigest.getInstance("MD5"); messageDigest.update(password.getBytes());//鍔犲瘑 bytes = messageDigest.digest();//鑾峰緱鍔犲瘑缁撴灉 } catch (Exception e) { e.printStackTrace(); } String result = new BigInteger(1, bytes).toString(16);// 灏嗗姞瀵嗗悗鐨勬暟鎹浆鎹负16杩涘埗鏁板瓧 // 鐢熸垚鏁板瓧鏈弧32浣嶏紝鍒欏墠闈㈣ˉ0 for (int i = 0; i < 32 - result.length(); i++) { result = "0" + result; } return result; } }

Processed: 0.071, SQL: 10