Tomcat数据源连接池加密
我们在使用Tomcat数据库连接池的时候都是明文存储数据库用户名和密码的，例如：
<Resource name="ODS" type="javax.sql.DataSource" driverClassName="oracle.jdbc.driver.OracleDriver" url="jdbc:oracle:thin:@192.168.1.1:1521:dbid" username="oracle" password="oracle" maxIdle="4" maxActive="6" maxWait="5000" />如果我们不想让数据库的密码暴露在web容器中怎么办呢？写一个类继承org.apache.commons.dbcp.BasicDataSourceFactory，然后指定factory=”*.EncryptedDataSourceFactory”为你的自定义类，下面是相关代码：
package net.uni.ap.jdbc; import java.util.Enumeration; import java.util.Hashtable; import javax.naming.Context; import javax.naming.Name; import javax.naming.RefAddr; import javax.naming.Reference; import javax.naming.StringRefAddr; import org.apache.commons.dbcp.BasicDataSourceFactory; import com.fesco.fws.utils.TeaUtil; /** * * @author sunwill * */ public class EncryptedDataSourceFactory extends BasicDataSourceFactory { public Object getObjectInstance(Object obj, Name name, Context nameCtx, Hashtable environment) throws Exception { if (obj instanceof Reference) { setUsername((Reference) obj); setPassword((Reference) obj); } return super.getObjectInstance(obj, name, nameCtx, environment); } private void setUsername(Reference ref) throws Exception { findDecryptAndReplace("username", ref); } private void setPassword(Reference ref) throws Exception { findDecryptAndReplace("password", ref); } private void findDecryptAndReplace(String refType, Reference ref) throws Exception { int idx = find(refType, ref); String decrypted = decrypt(idx, ref); replace(idx, refType, decrypted, ref); } private void replace(int idx, String refType, String newValue, Reference ref) throws Exception { ref.remove(idx); ref.add(idx, new StringRefAddr(refType, newValue)); } private String decrypt(int idx, Reference ref) throws Exception { return TeaUtil.decryptByTea(ref.get(idx).getContent().toString()); } private int find(String addrType, Reference ref) throws Exception { Enumeration enu = ref.getAll(); for (int i = 0; enu.hasMoreElements(); i++) { RefAddr addr = (RefAddr) enu.nextElement(); if (addr.getType().compareTo(addrType) == 0) { return i; } } throw new Exception("The \"" + addrType + "\" name/value pair was not found" + " in the Reference object. The reference Object is" + " " + ref.toString()); }}其中红色的地方是你的数据库密码解密方法，当然对应的也要有加密算法，加密后的串放到连接池的地方： <Context path=""> <Resource name="ODS" type="javax.sql.DataSource" driverClassName="oracle.jdbc.driver.OracleDriver" factory="net.uni.ap.jdbc.EncryptedDataSourceFactory" url="jdbc:oracle:thin:@192.168.1.1:1521:sid" username="oracle" password="C65BD76C4CED33C446B289F64CAFACC5" maxIdle="4" maxActive="6" maxWait="5000" /> </Context>
本文由用户 jopen 自行上传分享，仅供网友学习交流。所有权归原作者，若您的权利被侵害，请联系管理员。
转载本站原创文章，请注明出处，并保留原始链接、图片水印。
本站是一个以用户分享为主的开源技术平台，欢迎各类分享！