Question

尝试获取Hikari Pool：

final static String DB_URL = "jdbc:hsqldb:hsql://localhost/dbone";
final static String DRIVER = "org.hsqldb.jdbc.JDBCDriver";
final static String DS_DRIVER = "org.hsqldb.jdbc.JDBCDataSource";

public static HikariConfig hikariConfig = new HikariConfig();
public static HikariDataSource hikariDataSource ;
public static HikariConfig getHikariConfig() {
    /*Case 1 : Using ONLY DS_DRIVER */
    hikariConfig.setDataSourceClassName(DS_DRIVER);

    /*Case 2 : using ONLY normal Url for DriverManager*/
    hikariConfig.setJdbcUrl(DB_URL);

    hikariConfig.setMaximumPoolSize(100);
    hikariConfig.setConnectionTimeout(30000);
    hikariConfig.setTransactionIsolation("TRANSACTION_REPEATABLE_READ");
    hikariConfig.setValidationTimeout(5000);

    return hikariConfig;
}

public static HikariDataSource getDataSource(){
    hikariDataSource = new HikariDataSource(getHikariConfig());

    return hikariDataSource;
}

使用静态调用获取连接：

in case（2）ClassName.hikariDataSource.getConnection（）;我得到了连接

但是在案例1中我得到了这个例外

引起：java.sql.SQLException：JDBC调用中的参数无效：url：null

为什么会这样？

Answer 1

如果要按数据源类名使用，则应将数据源属性添加为：

 config.setDataSourceClassName(DS_DRIVER);
 config.addDataSourceProperty("serverName", "localhost");
 config.addDataSourceProperty("port", "1521");
 config.addDataSourceProperty("databaseName", "dbone");
 config.addDataSourceProperty("user", "<yourUser>");
 config.addDataSourceProperty("password", "<yourPassword>");

Hikari DataSource提供Url null异常

1 个答案: