Druid加密数据库信息

1. 执行命令加密数据库密码

在命令行中执行如下命令：

java -cp druid-1.0.16.jar com.alibaba.druid.filter.config.ConfigTools you_password

输出

privateKey:MIIBVgIBADANBgkqhkiG9w0BAQEFAASCAUAwggE8AgEAAkEA6+4avFnQKP+O7bu5YnxWoOZjv3no4aFV558HTPDoXs6EGD0HP7RzzhGPOKmpLQ1BbA5viSht+aDdaxXp6SvtMQIDAQABAkAeQt4fBo4SlCTrDUcMANLDtIlax/I87oqsONOg5M2JS0jNSbZuAXDv7/YEGEtMKuIESBZh7pvVG8FV531/fyOZAiEA+POkE+QwVbUfGyeugR6IGvnt4yeOwkC3bUoATScsN98CIQDynBXC8YngDNwZ62QPX+ONpqCel6g8NO9VKC+ETaS87wIhAKRouxZL38PqfqV/WlZ5ZGd0YS9gA360IK8zbOmHEkO/AiEAsES3iuvzQNYXFL3x9Tm2GzT1fkSx9wx+12BbJcVD7AECIQCD3Tv9S+AgRhQoNcuaSDNluVrL/B/wOmJRLqaOVJLQGg==
publicKey:MFwwDQYJKoZIhvcNAQEBBQADSwAwSAJBAOvuGrxZ0Cj/ju27uWJ8VqDmY7956OGhVeefB0zw6F7OhBg9Bz+0c84RjzipqS0NQWwOb4kobfmg3WsV6ekr7TECAwEAAQ==
password:PNak4Yui0+2Ft6JSoKBsgNPl+A033rdLhFw+L0np1o+HDRrCo9VkCuiiXviEMYwUgpHZUFxb2FpE0YmSguuRww==

输入你的数据库密码，输出的是加密后的结果。

2. 配置数据源，提示Druid数据源需要对数据库密码进行解密。

<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource"
     init-method="init" destroy-method="close">
     <property name="url" value="jdbc:derby:memory:spring-test;create=true" />
     <property name="username" value="sa" />
     <property name="password" value="${password}" />
     <property name="filters" value="config" />
     <property name="connectionProperties" value="config.decrypt=true;config.decrypt.key=${publickey}" />
</bean>

3. 配置参数，让ConfigFilter解密密码

有三种方式配置：

1. 可以在配置文件properties中指定config.decrypt=true
2. 也可以在DruidDataSource的ConnectionProperties中指定config.decrypt=true
3. 也可以在jvm启动参数中指定-Ddruid.config.decrypt=true

4. 用户名加密配置

@SuppressWarnings("all")public class DecryptDruidSource extends DruidDataSource {
    private static String usernamePublicKey="MFwwDQYJKoZIhvcNAQEBBQADSwAwSAJBAIiUrZ4iJq7wnhx+Wsb0dRk9JW+HqHObmufhB2NfB9gXXqCYLIb1Oj8J72p1i0yjql5VhX87gqYa3WtCBJcjhU8CAwEAAQ==";

    @Override
    public void setUsername(String username) {
        try {
            username = ConfigTools.decrypt(usernamePublicKey,username);
        } catch (Exception e) {
            e.printStackTrace();
        }
        super.setUsername(username);
    }
}