/**
* 获得一个数据源
*
* @param dsName 数据源名称，若null使用配置文件中的默认连接，此名称在配置文件中定义
* @param sshName 跳板机名称
* @throws ConnException
*/
public static synchronized DataSource getDataSource(String dsName, String sshName)
throws ConnException {
if (dbSetting == null) {
throw new ConnException("No setting found, please init it!");
}
DsSetting dsSetting = null;
try {
dsSetting = new DsSetting(dsName, sshName, dbSetting);
} catch (SettingException e) {
throw new ConnException("Init datasource setting fail！", e);
}
// 如果已经存在已有数据源（连接池）直接返回
DruidDataSource existedDataSource = dsMap.get(dsSetting.getName());
if (existedDataSource != null) {
return existedDataSource;
}
// 基本连接信息
String remoteHost = dsSetting.getString(DsSetting.KEY_DS_HOST);
int port = dsSetting.getInt(DsSetting.KEY_DS_PORT);
String dbName = dsSetting.getString(DsSetting.KEY_DS_DB);
// 验证连接信息的有效性
if (StrUtil.isBlank(remoteHost) || !SocketUtil.isValidPort(port) || StrUtil.isBlank(dbName)) {
throw new ConnException(
"Invalid connection info=>host:"
+ remoteHost
+ ", port:"
+ port
+ ", database:"
+ dbName
+ "】");
}
DruidDataSource dds = new DruidDataSource();
if (druidSetting != null) {
try {
// 连接池参数注入
druidSetting.toObject(dds);
} catch (SettingException e) {
throw new ConnException("Read Druid setting error!", e);
}
}
// 基本连接信息
dds.setName(dsSetting.getName()); // 数据源名称为连接名称
dds.setDriverClassName(dsSetting.getJdbcDriver());
dds.setUsername(dsSetting.getDsUser());
dds.setPassword(dsSetting.getDsPass());
if (dsSetting.isEnableSSH()) {
port = SSHUtil.openAndBindPortToLocal(dsSetting.getSSHConnector(), remoteHost, port);
remoteHost = SocketUtil.LOCAL_IP;
}
String jdbcUrl =
DbUtil.buildJdbcUrl(
dsSetting.getProtocol(), remoteHost, port, dbName, dsSetting.getJdbcUrlParam());
dds.setUrl(jdbcUrl);
logger.info("【{}】{}@{}", dsSetting.getName(), dds.getUsername(), jdbcUrl);
// 添加到数据源池中，以备下次使用
dsMap.put(dsSetting.getName(), dds);
return dds;
}