如何在Grails中从GSP页面生成PDF？

compile "org.grails.plugins:pdf-gsp:2.0.2"

import grails.plugin.pdf.RenderingGrailsService

class PdfController {
    RenderingGrailsService renderingGrailsService

    def generatePdf() {
        def model = [
            // 可以在这里传递数据给GSP页面使用
        ]
        byte[] pdfBytes = renderingGrailsService.render(template: '/path/to/gsp', model: model)

        response.contentType = 'application/pdf'
        response.outputStream << pdfBytes
        response.outputStream.flush()
    }
}

"/pdf"(controller: 'pdf', action: 'generatePdf', method: 'GET')