SpringBoot使用Druid数据库密码加密

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1、生成公钥、私钥和密码加密串

java -cp druid-1.0.28.jar com.alibaba.druid.filter.config.ConfigTools pcds123123456

2、使用 Durid 的工具类 ConfigTools 验证加密字符串

@Test
public void db_decrypt_test() throws Exception {
   String publicKey = "MFwwDQYJKoZIhvcNAQEBBQADSwAwSAJBAJggkaRJ+bqLMF6pefubEDLViboxYKGTdGe+78DziIta8Nv8crOA83M0tFG8y8CqHcFYIbG89q9zcnNvL+E2/CECAwEAAQ==";
   String password = "AgDRyKJ81Ku3o0HSyalDgCTtGsWcKz3fC0iM5pLur2QJnIF+fKWKFZ6c6e36M06tF2uCadvS/EodWxmRDWwvIA==";
   System.out.println(ConfigTools.decrypt(publicKey, password));
}

3、application.properties中的数据源配置

# mysql config
spring.datasource.name=pcdsdata
spring.datasource.url=jdbc:mysql://192.168.1.1/mydb
spring.datasource.username=root
spring.datasource.password=AgDRyKJ81Ku3o0HSyalDgCTtGsWcKz3fC0iM5pLur2QJnIF+fKWKFZ6c6e36M06tF2uCadvS/EodWxmRDWwvIA==
 
# druid datasource config
spring.datasource.driverClassName=com.mysql.jdbc.Driver
spring.datasource.maxActive=20
spring.datasource.initialSize=1
spring.datasource.minIdle=1
spring.datasource.maxWait=60000
spring.datasource.timeBetweenEvictionRunsMillis=60000
spring.datasource.minEvictableIdleTimeMillis=300000
spring.datasource.validationQuery=select 1 from dual
spring.datasource.testWhileIdle=true
spring.datasource.testOnBorrow=false
spring.datasource.testOnReturn=false
spring.datasource.poolPreparedStatements=true
spring.datasource.maxOpenPreparedStatements=20
spring.datasource.maxPoolPreparedStatementPerConnectionSize=20
spring.datasource.filters=config,stat,wall,log4j
spring.datasource.publicKey=MFwwDQYJKoZIhvcNAQEBBQADSwAwSAJBAJggkaRJ+bqLMF6pefubEDLViboxYKGTdGe+78DziIta8Nv8crOA83M0tFG8y8CqHcFYIbG89q9zcnNvL+E2/CECAwEAAQ==
spring.datasource.connectionProperties=config.decrypt=true;config.decrypt.key=${spring.datasource.publicKey}

4、配置注入数据源Bean

@Configuration
@ConfigurationProperties(prefix = "spring.datasource")
public class DataSourceConfig {
	
	private static final Logger LOGGER = LoggerFactory.getLogger(DataSourceConfig.class);
	 
    private String url;
    private String driverClassName;
    private String username;
    private String password;
    private Integer initialSize;
    private Integer minIdle;
    private Integer maxActive;
    private Integer maxWait;
    private Integer timeBetweenEvictionRunsMillis;
    private Integer minEvictableIdleTimeMillis;
    private String validationQuery;
    private Boolean testWhileIdle;
    private Boolean testOnBorrow;
    private Boolean testOnReturn;
    private Boolean poolPreparedStatements;
    private Integer maxOpenPreparedStatements;
    private Integer maxPoolPreparedStatementPerConnectionSize;
    private String filters;
    private String publicKey;
    private String connectionProperties;
 
    @Primary
    @Bean(name = "dataSource")
    public DataSource dataSource() {
        DruidDataSource datasource = new DruidDataSource();
        datasource.setUrl(url);
        datasource.setUsername(username);
        datasource.setPassword(password);
        datasource.setDriverClassName(driverClassName);
        datasource.setInitialSize(initialSize);
        datasource.setMinIdle(minIdle);
        datasource.setMaxActive(maxActive);
        datasource.setMaxWait(maxWait);
        datasource.setTimeBetweenEvictionRunsMillis(timeBetweenEvictionRunsMillis);
        datasource.setMinEvictableIdleTimeMillis(minEvictableIdleTimeMillis);
        datasource.setValidationQuery(validationQuery);
        datasource.setTestWhileIdle(testWhileIdle);
        datasource.setTestOnBorrow(testOnBorrow);
        datasource.setTestOnReturn(testOnReturn);
        datasource.setPoolPreparedStatements(poolPreparedStatements);
        datasource.setMaxOpenPreparedStatements(maxOpenPreparedStatements);
        datasource.setMaxPoolPreparedStatementPerConnectionSize(maxPoolPreparedStatementPerConnectionSize);
        datasource.setConnectionProperties(connectionProperties);
        try {
            datasource.setFilters(filters);
        } catch (SQLException e) {
            LOGGER.error("druid configuration initialization filter", e);
        }
        return datasource;
    }
 
	/**
	 * 配置mybatis使用的sqlSessionFactory
	 * @return
	 */
	@Bean
	@ConfigurationProperties(prefix = "mybatis")
	public SqlSessionFactoryBean sqlSessionFactoryBean(@Qualifier("dataSource") DataSource dataSource) {
		SqlSessionFactoryBean sqlSessionFactoryBean = new SqlSessionFactoryBean();
		sqlSessionFactoryBean.setDataSource(dataSource);
		return sqlSessionFactoryBean;
	}
 
	/**
	 * 配置JdbcTemplate
	 * @param dataSource
	 * @return
	 */
	@Bean(name = "jdbcTemplate")
	public JdbcTemplate jdbcTemplate(@Qualifier("dataSource") DataSource dataSource) {
		return new JdbcTemplate(dataSource);
	}
	
	/**
	 * 配置@Transactional注解事物
	 * @return
	 */
	@Bean
	public PlatformTransactionManager transactionManager(@Qualifier("dataSource") DataSource dataSource) {
		return new DataSourceTransactionManager(dataSource);
	}    
    
    public String getUrl() {
        return url;
    }
 
    public void setUrl(String url) {
        this.url = url;
    }
 
    public String getDriverClassName() {
        return driverClassName;
    }
 
    public void setDriverClassName(String driverClassName) {
        this.driverClassName = driverClassName;
    }
 
    public String getUsername() {
        return username;
    }
 
    public void setUsername(String username) {
        this.username = username;
    }
 
    public String getPassword() {
        return password;
    }
 
    public void setPassword(String password) {
        this.password = password;
    }
 
    public Integer getInitialSize() {
        return initialSize;
    }
 
    public void setInitialSize(Integer initialSize) {
        this.initialSize = initialSize;
    }
 
    public Integer getMinIdle() {
        return minIdle;
    }
 
    public void setMinIdle(Integer minIdle) {
        this.minIdle = minIdle;
    }
 
    public Integer getMaxActive() {
        return maxActive;
    }
 
    public void setMaxActive(Integer maxActive) {
        this.maxActive = maxActive;
    }
 
    public Integer getMaxWait() {
        return maxWait;
    }
 
    public void setMaxWait(Integer maxWait) {
        this.maxWait = maxWait;
    }
 
    public Integer getTimeBetweenEvictionRunsMillis() {
        return timeBetweenEvictionRunsMillis;
    }
 
    public void setTimeBetweenEvictionRunsMillis(Integer timeBetweenEvictionRunsMillis) {
        this.timeBetweenEvictionRunsMillis = timeBetweenEvictionRunsMillis;
    }
 
    public Integer getMinEvictableIdleTimeMillis() {
        return minEvictableIdleTimeMillis;
    }
 
    public void setMinEvictableIdleTimeMillis(Integer minEvictableIdleTimeMillis) {
        this.minEvictableIdleTimeMillis = minEvictableIdleTimeMillis;
    }
 
    public String getValidationQuery() {
        return validationQuery;
    }
 
    public void setValidationQuery(String validationQuery) {
        this.validationQuery = validationQuery;
    }
 
    public Boolean getTestWhileIdle() {
        return testWhileIdle;
    }
 
    public void setTestWhileIdle(Boolean testWhileIdle) {
        this.testWhileIdle = testWhileIdle;
    }
 
    public Boolean getTestOnBorrow() {
        return testOnBorrow;
    }
 
    public void setTestOnBorrow(Boolean testOnBorrow) {
        this.testOnBorrow = testOnBorrow;
    }
 
    public Boolean getTestOnReturn() {
        return testOnReturn;
    }
 
    public void setTestOnReturn(Boolean testOnReturn) {
        this.testOnReturn = testOnReturn;
    }
 
    public Boolean getPoolPreparedStatements() {
        return poolPreparedStatements;
    }
 
    public void setPoolPreparedStatements(Boolean poolPreparedStatements) {
        this.poolPreparedStatements = poolPreparedStatements;
    }
 
    public Integer getMaxOpenPreparedStatements() {
        return maxOpenPreparedStatements;
    }
 
    public void setMaxOpenPreparedStatements(Integer maxOpenPreparedStatements) {
        this.maxOpenPreparedStatements = maxOpenPreparedStatements;
    }
 
    public Integer getMaxPoolPreparedStatementPerConnectionSize() {
        return maxPoolPreparedStatementPerConnectionSize;
    }
 
    public void setMaxPoolPreparedStatementPerConnectionSize(Integer maxPoolPreparedStatementPerConnectionSize) {
        this.maxPoolPreparedStatementPerConnectionSize = maxPoolPreparedStatementPerConnectionSize;
    }
 
    public String getFilters() {
        return filters;
    }
 
    public void setFilters(String filters) {
        this.filters = filters;
    }
 
    public String getPublicKey() {
        return publicKey;
    }
 
    public void setPublicKey(String publicKey) {
        this.publicKey = publicKey;
    }
 
    public String getConnectionProperties() {
        return connectionProperties;
    }
 
    public void setConnectionProperties(String connectionProperties) {
        this.connectionProperties = connectionProperties;
    }
}