Question

我试图将远程文件下载到我的设备。我正在使用PhoneGap Build。这是我的代码。

我尝试了我发现的每一段代码。当我点击下载按钮时，没有任何反应。在调试时，不会出现任何错误。

我在哪里弄错了？

<script type="text/javascript">
  window.appRootDirName = "my_app";
  function onLoad(){
    document.addEventListener("deviceready", onDeviceReady, false);
  }
  function onDeviceReady() {
    console.log("device is ready");
    window.requestFileSystem(LocalFileSystem.PERSISTENT, 0, gotFS, fail);
  }

  function gotFS(fileSystem) {
    console.log("filesystem got");
    window.fileSystem = fileSystem;
    fileSystem.root.getDirectory(window.appRootDirName, {
      create : true,
      exclusive : false
    }, dirReady, fail);
  }

  function dirReady(entry) {
    window.appRootDir = entry;
    console.log('application dir is ready');
  }

  function fail() {
    console.log('failed to get filesystem');
  }

  function downloadFile(url,fileName) {
    var fileTransfer = new FileTransfer();
    var filePath = window.appRootDir.fullPath + "/" + fileName + ".txt";
    fileTransfer.download(url, filePath, function(entry) {
      alert("download complete: " + entry.fullPath);
    }, function(error) {
      console.log(error);
    });
  }

$(document).ready(function(){
  .... some other code

  //on click download file
  $(document).on('click touchstart', '.download', function(e){
    e && e.preventDefault();

    var url = $(this).data('url');
    var title = $(this).data('title');

    downloadFile(url,title);

  });


});
</script>

还有config.xml

<gap:plugin name="com.coconutcenter.file-transfer" version="0.4.6" />

    <feature name="http://api.phonegap.com/1.0/file" />
    <feature name="File">
           <param name="android-package" value="org.apache.cordova.file.FileUtils" />
    </feature>
    <feature name="FileTransfer">
          <param name="android-package" value="org.apache.cordova.filetransfer.FileTransfer" />
    </feature>
    <feature name="Storage">
           <param value="org.apache.cordova.Storage" name="android-package"/>
</feature>

.download方法的错误代码：

{"code":1,"source":"http://myurl.com/file.txt","target":"//my_app/file.txt","http_status":null,"body":null}

最后我找到了解决方案。如上所述here，我使用了.toUrl() insetad fullPath。所以我的downloadFile函数将是;

  function downloadFile(url,fileName) {
    var fileTransfer = new FileTransfer();
    var filePath = window.appRootDir.toUrl() + "/" + fileName + ".txt"; //here
    fileTransfer.download(url, filePath, function(entry) {
      alert("download complete: " + entry.fullPath);
    }, function(error) {
      console.log(error);
    });
  }

Answer 1

最后我找到了解决方案。如上所述[{3}}，我使用.toUrl()代替fullPath

Phonegap文件下载问题

1 个答案: