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引言
咱們公司從事的是信息安全涉密應(yīng)用的一些項(xiàng)目研發(fā)一共有分為三步,相比較于一般公司和一般的項(xiàng)目,對(duì)于信息安全要求更加嚴(yán)格,領(lǐng)導(dǎo)要求數(shù)據(jù)量和用戶的用戶名及密碼信息都必需是要密文配置和存儲(chǔ)的,這就涉及到j(luò)dbc.properties文件中的數(shù)據(jù)庫(kù)的用戶名和密碼也是一樣的,需要配置問(wèn)密文,在連接的時(shí)候再加載解密為明文進(jìn)行數(shù)據(jù)庫(kù)的連接操作,以下就是實(shí)現(xiàn)過(guò)程,一共有分為三步。
一、創(chuàng)建DESUtil類
提供自定義密鑰,加密解密的方法。
package com.hzdy.DCAD.common.util; import sun.misc.BASE64Decoder; import sun.misc.BASE64Encoder; import javax.crypto.Cipher; import javax.crypto.KeyGenerator; import java.security.Key; import java.security.SecureRandom; /** * Created by Wongy on 2019/8/8. */ public class DESUtil { private static Key key; //自己的密鑰 private static String KEY_STR = "mykey"; static { try { KeyGenerator generator = KeyGenerator.getInstance("DES"); SecureRandom secureRandom = SecureRandom.getInstance("SHA1PRNG"); secureRandom.setSeed(KEY_STR.getBytes()); generator.init(secureRandom); key = generator.generateKey(); generator = null; } catch (Exception e) { throw new RuntimeException(e); } } /** * 對(duì)字符串進(jìn)行加密,返回BASE64的加密字符串 * * @param str * @return * @see [類、類#方法、類#成員] */ public static String getEncryptString(String str) { BASE64Encoder base64Encoder = new BASE64Encoder(); try { byte[] strBytes = str.getBytes("UTF-8"); Cipher cipher = Cipher.getInstance("DES"); cipher.init(Cipher.ENCRYPT_MODE, key); byte[] encryptStrBytes = cipher.doFinal(strBytes); return base64Encoder.encode(encryptStrBytes); } catch (Exception e) { throw new RuntimeException(e); } } /** * 對(duì)BASE64加密字符串進(jìn)行解密 * */ public static String getDecryptString(String str) { BASE64Decoder base64Decoder = new BASE64Decoder(); try { byte[] strBytes = base64Decoder.decodeBuffer(str); Cipher cipher = Cipher.getInstance("DES"); cipher.init(Cipher.DECRYPT_MODE, key); byte[] encryptStrBytes = cipher.doFinal(strBytes); return new String(encryptStrBytes, "UTF-8"); } catch (Exception e) { throw new RuntimeException(e); } } public static void main(String[] args) { String name = "dbuser"; String password = "waction2016"; String encryname = getEncryptString(name); String encrypassword = getEncryptString(password); System.out.println("encryname : " + encryname); System.out.println("encrypassword : " + encrypassword); System.out.println("name : " + getDecryptString(encryname)); System.out.println("password : " + getDecryptString(encrypassword)); } }
二、 創(chuàng)建EncryptPropertyPlaceholderConfigurer類
建立與配置文件的關(guān)聯(lián)。
package com.hzdy.DCAD.common.util; import org.springframework.beans.factory.config.PropertyPlaceholderConfigurer; public class EncryptPropertyPlaceholderConfigurer extends PropertyPlaceholderConfigurer { //屬性需與配置文件的KEY保持一直 private String[] encryptPropNames = {"jdbc.username", "jdbc.password"}; @Override protected String convertProperty(String propertyName, String propertyValue) { //如果在加密屬性名單中發(fā)現(xiàn)該屬性 if (isEncryptProp(propertyName)) { String decryptValue = DESUtil.getDecryptString(propertyValue); System.out.println(decryptValue); return decryptValue; } else { return propertyValue; } } private boolean isEncryptProp(String propertyName) { for (String encryptName : encryptPropNames) { if (encryptName.equals(propertyName)) { return true; } } return false; } }
三、 修改配置文件 jdbc.properties
#加密配置之前 #jdbc.driver=com.mysql.jdbc.Driver #jdbc.user=root #jdbc.password=root #jdbc.url=jdbc:mysql://localhost:3306/bookstore #加密配置之后 jdbc.driver=com.mysql.jdbc.Driver jdbc.user=Ov4j7fKiCzY= jdbc.password=Ov4j7fKiCzY= jdbc.url=jdbc:mysql://localhost:3306/bookstore
四、 修改spring-content.xml配置文件
將spring-context中的 <context:property-placeholder location="classpath:.properties" /> 修改為 <bean class="com.hzdy.DCAD.common.util.EncryptPropertyPlaceholderConfigurer"p:locations="classpath:*.properties"/> //注意只能存在一個(gè)讀取配置文件的bean,否則系統(tǒng)只會(huì)讀取最前面的
注意:如果發(fā)現(xiàn)配置密文的username
和password
可以加載并解密成功,但是最后連接的時(shí)候還是以密文連接并報(bào)錯(cuò),這可能涉及到內(nèi)存預(yù)加載的問(wèn)題,項(xiàng)目一啟動(dòng),程序會(huì)加密密文的用戶名和密碼,就算最后解密成功了,最后連接數(shù)據(jù)庫(kù)讀取的卻還是密文,這時(shí)候我們可以自己重寫連接池的方法,讓spring-content.xml
加載重寫的連接池方法,并在連接的時(shí)候再提前進(jìn)行解密。
package com.thinkgem.jeesite.common.encrypt; import java.sql.Connection; import java.sql.SQLException; import java.util.Properties; import javax.security.auth.callback.PasswordCallback; import com.alibaba.druid.util.DruidPasswordCallback; /** */ @SuppressWarnings("serial") public class DruidDataSource extends com.alibaba.druid.pool.DruidDataSource { public PhysicalConnectionInfo createPhysicalConnection() throws SQLException { String url = this.getUrl(); Properties connectProperties = getConnectProperties(); String user; if (getUserCallback() != null) { user = getUserCallback().getName(); } else { user = getUsername(); } //DES解密 user = DESUtils.getDecryptString(user); String password = DESUtils.getDecryptString(getPassword()); PasswordCallback passwordCallback = getPasswordCallback(); if (passwordCallback != null) { if (passwordCallback instanceof DruidPasswordCallback) { DruidPasswordCallback druidPasswordCallback = (DruidPasswordCallback) passwordCallback; druidPasswordCallback.setUrl(url); druidPasswordCallback.setProperties(connectProperties); } char[] chars = passwordCallback.getPassword(); if (chars != null) { password = new String(chars); } } Properties physicalConnectProperties = new Properties(); if (connectProperties != null) { physicalConnectProperties.putAll(connectProperties); } if (user != null && user.length() != 0) { physicalConnectProperties.put("user", user); } if (password != null && password.length() != 0) { physicalConnectProperties.put("password", password); } Connection conn; long connectStartNanos = System.nanoTime(); long connectedNanos, initedNanos, validatedNanos; try { conn = createPhysicalConnection(url, physicalConnectProperties); connectedNanos = System.nanoTime(); if (conn == null) { throw new SQLException("connect error, url " + url + ", driverClass " + this.driverClass); } initPhysicalConnection(conn); initedNanos = System.nanoTime(); validateConnection(conn); validatedNanos = System.nanoTime(); setCreateError(null); } catch (SQLException ex) { setCreateError(ex); throw ex; } catch (RuntimeException ex) { setCreateError(ex); throw ex; } catch (Error ex) { createErrorCount.incrementAndGet(); throw ex; } finally { long nano = System.nanoTime() - connectStartNanos; createTimespan += nano; } return new PhysicalConnectionInfo(conn, connectStartNanos, connectedNanos, initedNanos, validatedNanos); } }
修改spring-content.xml文件的數(shù)據(jù)庫(kù)連接數(shù)配置
#修改之前 <!-- <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close"> --> #修改之后 <bean id="dataSource"class="com.thinkgem.jeesite.common.encrypt.DruidDataSource" init-method="init" destroy-method="close"> <!-- 數(shù)據(jù)源驅(qū)動(dòng)類可不寫,Druid默認(rèn)會(huì)自動(dòng)根據(jù)URL識(shí)別DriverClass --> <property name="driverClassName" value="${jdbc.driver}" /> <!-- 基本屬性 url、user、password --> <property name="url" value="${jdbc.url}" /> <property name="username" value="${jdbc.username}" /> <property name="password" value="${jdbc.password}" /> </bean>
至此,數(shù)據(jù)庫(kù)密文配置連接就完成了!
總結(jié)
以上所述是小編給大家介紹的SSM實(shí)現(xiàn)mysql數(shù)據(jù)庫(kù)賬號(hào)密碼密文登錄功能,希望對(duì)大家有所幫助,如果大家有任何疑問(wèn)請(qǐng)給我留言,小編會(huì)及時(shí)回復(fù)大家的。在此也非常感謝大家對(duì)億速云網(wǎng)站的支持!
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