Spring加载加密的配置文件详解

/** * 带加密的Spring属性配置文件扩展类 * 加密方式：AES * @author simon * */public class EncryptPropertyPlaceholderConfigurer extends PropertyPlaceholderConfigurer { //指定需要加密的属性 private String[] propertyNames = {"db.password"}; /**  * 解密指定propertyName的属性值  * @param propertyName  * @param propertyValue  * @return  */ @Override protected String convertProperty(String propertyName, String propertyValue) {  //过滤出需要解密的属性  for (String p : propertyNames) {   if (p.equalsIgnoreCase(propertyName)) {    try {     //返回AES解密后的字符串     return new String(SymmetricCryptoUtil.decryptAESWithDefaultKey(EncodeUtil.decodeBase64(propertyValue)));    } catch (Exception e) {     e.printStackTrace();    }   }  }  return super.convertProperty(propertyName, propertyValue); }}

<!-- 加载加密后的配置文件 --><bean class="com.bounter.mybatis.extension.EncryptPropertyPlaceholderConfigurer"> <property name="locations"> <list>  <value>classpath:db.properties</value> </list> </property></bean>

db.driver=db.url=db.username=root#AES encrypt,Base64 encodedb.password=jFYmt2f57RHhzItYDhWiSA==