但是当我去wildfly控制面板http：// localhost：9990 / console /
dataresource没有出现,我错过了什么？

我也试图从界面手动添加它我得到了这个错误

Unexpected HTTP response: 500

Request
{
    "address" => [
        ("subsystem" => "datasources"),("data-source" => "MysqL")
    ],"operation" => "test-connection-in-pool"
}

Response

Internal Server Error
{
    "outcome" => "Failed","failure-description" => "JBAS010440: Failed to invoke operation: JBAS010447: Connection is not valid","rolled-back" => true
}