druid:java代码创建连接池

PropertiesDB 是一个读取配置文件的类，也可以不用，每个参数直接用String代替。

public DataSource dataSource(PropertiesDB propertiesDB) {
DruidDataSource dataSource = new DruidDataSource();
dataSource.setUrl(propertiesDB.getUrl());
dataSource.setDriverClassName(propertiesDB.getDriverClassName());
dataSource.setUsername(propertiesDB.getUsername());
dataSource.setPassword(propertiesDB.getPassword());
if (StringUtils.isNotBlank(propertiesDB.getConnectionProperties())) {
dataSource.setConnectionProperties(propertiesDB.getConnectionProperties());
}
dataSource.setInitialSize(propertiesDB.getInitialSize());
dataSource.setMinIdle(propertiesDB.getMinIdle());
dataSource.setMaxWait(propertiesDB.getMaxActive());
dataSource.setMaxActive(propertiesDB.getMaxActive());
dataSource.setTimeBetweenEvictionRunsMillis(propertiesDB.getTimeBetweenEvictionRunsMillis());
dataSource.setMinEvictableIdleTimeMillis(propertiesDB.getMinEvictableIdleTimeMillis());
dataSource.setTestWhileIdle(propertiesDB.getTestWhileIdle());
if (StringUtils.isNotBlank(propertiesDB.getValidationQuery())) {
dataSource.setValidationQuery(propertiesDB.getValidationQuery());
}
dataSource.setTestOnBorrow(propertiesDB.getTestOnBorrow());
dataSource.setTestOnReturn(propertiesDB.getTestOnReturn());
dataSource.setPoolPreparedStatements(propertiesDB.getPoolPreparedStatements());
dataSource.setMaxPoolPreparedStatementPerConnectionSize(
propertiesDB.getMaxPoolPreparedStatementPerConnectionSize());
if (StringUtils.isNotBlank(propertiesDB.getFilters())) {
try {
dataSource.setFilters(propertiesDB.getFilters());
} catch (SQLException e) {
logger.error("初始化数据库连接池发生异常:{}", e.toString());
}
}
return dataSource;
}