如何只读取文件夹中的图像？

Question

class PhotoController {
    def index = {
        def baseFolder = grailsAttributes.getApplicationContext().getResource("/").getFile().toString()
        def imagesFolder = baseFolder + '/images/sps'
        def imageList1 = new File(imagesFolder).list()
        [imageList:imageList1]
    }
}

以上列出了非jpg文件.我怎么能避免这种情况？!

Answer 1

您可以在文件夹上调用eachFileMatch方法:

def imageList1 = []
new File(imagesFolder).eachFileMatch(~/.*?\.jpg/) { imageList1 << it }