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gebでファイルをダウンロードする

Last updated at Posted at 2017-07-06

gebでダウンロードしようとしてボタンをクリックしても、ファイル保存ダイアログの「OK」をクリックできないため、ダウンロードできない。

browser.with {
    go 'https://docs.docker.com/docker-for-mac/install/'
    def applink = $('a',text:'Get Docker for Mac (Stable)')
    println "----- ${applink.@href}"
    applink.click()
}

Docker_dmg_を開く.png

DownloadDupport クラスの download() を使う。
The Book Of Geb - Direct Downloading

java.net.HttpURLConnection のインスタンスが返るので、 InputStream をそのまま保存すれば良い。

browser.with {
    go 'https://docs.docker.com/docker-for-mac/install/'
    def applink = $('a',text:'Get Docker for Mac (Stable)')
    println "----- ${applink.@href}"
    def conn = download(applink.@href)
    if(conn.getResponseCode()==HttpURLConnection.HTTP_OK){
        InputStream is = conn.getInputStream()
        OutputStream os = new File('./Docker.dmg').newOutputStream()
        os << is
        is.close()
        os.close()
    }
}

groovyスクリプト全体は以下。

geb_download_dmg.groovy
@Grab('org.gebish:geb-core:1.1.1')
@Grab('org.seleniumhq.selenium:selenium-firefox-driver:3.4.0')
@Grab('org.seleniumhq.selenium:selenium-support:3.4.0')
@Grab('io.github.bonigarcia:webdrivermanager:1.6.2')
@GrabExclude('org.codehaus.groovy:groovy-all')

import geb.*
import org.openqa.selenium.*
import org.openqa.selenium.remote.DesiredCapabilities
import org.openqa.selenium.firefox.FirefoxDriver
// https://github.com/bonigarcia/webdrivermanager
import io.github.bonigarcia.wdm.FirefoxDriverManager

import java.net.HttpURLConnection

//ドライバ読み込み
FirefoxDriverManager.getInstance().setup()
DesiredCapabilities capabilities = DesiredCapabilities.firefox()
capabilities.setCapability('marionette', true)

Browser browser = new Browser(driver:new FirefoxDriver(capabilities))

browser.with {
    go 'https://docs.docker.com/docker-for-mac/install/'
    def applink = $('a',text:'Get Docker for Mac (Stable)')
    println "----- ${applink.@href}"
    def conn = download(applink.@href)
    if(conn.getResponseCode()==HttpURLConnection.HTTP_OK){
        InputStream is = conn.getInputStream()
        OutputStream os = new File('./Docker.dmg').newOutputStream()
        os << is
        is.close()
        os.close()
    }
}

browser.quit()

追記

自分が書く前に記事がありました。
downloadBytes() で byte配列が返るそうです。
Gebでファイルをダウンロードする - 山pの楽しいお勉強生活

browser.with {
    go 'https://docs.docker.com/docker-for-mac/install/'
    def applink = $('a',text:'Get Docker for Mac (Stable)')
    println "----- ${applink}"
    def bytes = downloadBytes(applink.@href)
    new File('./Docker.dmg').newOutputStream().write(bytes)
}
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