如何通过JavaScript查找远程服务器目录是否存在

Question

I am using javascript inside my Ant script to pass the runtime network remote folder value as input. after passing that value i am finding that input folder path exists or not. but i am unable to do this. my code is as below.

    <script language="javascript">
    <![CDATA[
        importPackage(javax.io);
        importPackage(javax.swing);
        importPackage(java.lang);
        var deployment_machine = project.getProperty("var2");
        var deployment_machine = deployment_machine.substring(2,deployment_machine.indexOf("$")-2);
        var optionPane = JOptionPane.showInputDialog( 'Deployment location for GatewayFW in ' + deployment_machine + '?', null );
        var path = require('optionPane');
        if (path.existsSync("/the/path")) {
                // ...
            }

        if(!fso.FolderExists(optionPane))
        {
        var optionPane = JOptionPane.showInputDialog( 'Deployment location for GatewayFW in ?', deployment_machine );
        }
        else
        {
        project.setProperty('deploy_loc',optionPane);
        }           
    ]]>
    </script>
</then>
<else>
    <echo message="File need to check:- ${patch.path}/${patch.name}/GatewayFW_patch.zip is not exist"/>
</else>

`

can anyone help me out pls?

Answer 1

<script language="javascript"> <![CDATA[ importPackage(java.io); importPackage(javax.swing); importPackage(java.lang); var deployment_machine = project.getProperty("var2"); var deployment_machine = deployment_machine.substring(2,deployment_machine.indexOf("$")-2);
do { var optionPane = JOptionPane.showInputDialog( 'Deployment location for GatewayFW in ' + deployment_machine + '?', null );
var dir = new File(optionPane); } while(!dir.exists()); project.setProperty('deploy_loc',optionPane); ]]> </script> <script language="javascript"> <![CDATA[ importPackage(java.io); importPackage(javax.swing); importPackage(java.lang); var deployment_machine = project.getProperty("var2"); var deployment_machine = deployment_machine.substring(2,deployment_machine.indexOf("$")-2);
do { var optionPane = JOptionPane.showInputDialog( 'Deployment location for GatewayFW in ' + deployment_machine + '?', null );
var dir = new File(optionPane); } while(!dir.exists()); project.setProperty('deploy_loc',optionPane); ]]> </script> here we have to assign the File("folder path") to one javascript variable like above var=dir =new File("folder path"); then we can perform the any operation over path.