Wildfly CLI检查资源是否存在

Question

我有同样的问题，我试过了：

if (result.value == true) of /subsystem=datasources/data-source=MyDataSource:read-resource
    data-source remove --name=MyDataSource
#else
  # none   
end-if

但它每次都会尝试删除。即使数据源不可用

Answer 1

您应该以这种方式重写代码：

if (outcome == success) of /subsystem=datasources/data-source=MyDataSource/:read-resource
    /subsystem=datasources/data-source=MyDataSource/:remove
#else
  # none   
end-if

此外，您可以在CLI中运行任何命令并查看输出。例如：

1. /子系统=数据源/：读资源

   "outcome" => "success",
   "result" => {
       "data-source" => {"ExampleDS" => undefined},
       "jdbc-driver" => {"h2" => undefined},
       "xa-data-source" => undefined
   }
   

2. /子系统=数据源/数据源= FictiveDataSource /：读资源

   "outcome" => "failed",
   "failure-description" => "JBAS014807: Management resource '[
       (\"subsystem\" => \"datasources\"),
       (\"data-source\" => \"FictiveDataSource\") ]' not found",
   "rolled-back" => true