renderFile File Download

Controller supports file download by providing renderFile series methods.

The defalut download path is the download sub-folder in root path of the project, which is called the base path of file download.

you could configure the base path of file download via me.setBaseDownloadPath(baseDownloadPath in JFinalConfig.configConstant(Constants me) and the path accept parameter starts with '/' or absolute path starts with name of disk drive in windows OS,which means base path could be pointed outside the root of project to support multi-instance deployment.When base path set to relative path, the path parameter is a relative path based on root path of the project.