How can I have local file system access using embed Java application in HTML? -


i don't know right codes should put, tried many ways have access read , write. main goal when click button in java application, download start.

you can't access local filesystem java sandbox applet. reading documentation what applets can , cannot do, see:

sandbox applets cannot perform following operations:

  • they cannot access client resources such local filesystem, executable files, system clipboard, , printers.

  • they cannot connect or retrieve resources third party server (any server other server originated from).

  • they cannot load native libraries.
  • they cannot change securitymanager.
  • they cannot create classloader.
  • they cannot read system properties. see system properties list of forbidden system properties.

if want bypass these restrictions have use priviliged applet:

privileged applets not have security restrictions imposed on sandbox applets , can run outside security sandbox.

for this, need sign jar , add following code snippet in jnlp file:

<security>    <all-permissions/> </security>

then user has grant permission. documentation:

the first time ria launched, user prompted permission run. dialog shown provides information signer's certificate , indicates if ria requests permission run outside sandbox. user can make informed decision running application.

read security in rich internet applications , deploying applet tag more information.


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