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使用Javascript将文本从Textarea保存到Google Drive_Javascript_Google Drive Api - Fatal编程技术网

使用Javascript将文本从Textarea保存到Google Drive

使用Javascript将文本从Textarea保存到Google Drive,javascript,google-drive-api,Javascript,Google Drive Api,我正在尝试将键入文本区域的文本上载到Google驱动器文件(mimetype:text/x-java for java源代码) 我曾尝试合并中提到的update和insert方法,但不断出现401错误。可在上找到实现 任何帮助都将不胜感激 // save content to google drive function updateOrInsert(fileId, folderId, text, callback) { const boundary = '-------31

我正在尝试将键入文本区域的文本上载到Google驱动器文件(mimetype:text/x-java for java源代码)

我曾尝试合并中提到的update和insert方法,但不断出现401错误。可在上找到实现

任何帮助都将不胜感激

  // save content to google drive
  function updateOrInsert(fileId, folderId, text, callback) 
  {
    const boundary = '-------314159265358979323846';
    const delimiter = "\r\n--" + boundary + "\r\n";
    const close_delim = "\r\n--" + boundary + "--";
    checkAuth();
    var contentType = "text/x-java";
    var myToken = accesstoken || gapi.auth.getToken();

    // if fileId exists, the file exists, use update method

    if (fileId) 
    {
      var metadata = {'mimeType': contentType,};

      var multipartRequestBody =
          delimiter +  'Content-Type: application/json\r\n\r\n' +
          JSON.stringify(metadata) +
          delimiter + 'Content-Type: ' + contentType + '\r\n' + '\r\n' +
          text +
          close_delim;

      if (!callback) { callback = function(file) { console.log("Update Complete ",file) }; }

      gapi.client.request({ 
          'path': '/upload/drive/v2/files/'+folderId+"?fileId="+fileId+"&uploadType=multipart",
          'method': 'PUT',
          'params': {'fileId': fileId, 'uploadType': 'multipart'},
          'headers': { 'Authorization': 'Bearer '+myToken.access_token,
                       'Content-Type': 'multipart/mixed; boundary="' + boundary + '"'},
          'body': multipartRequestBody,
      });
    }
    else
    {
      //no file present, must create a new one.  use insert method

      var reader = new FileReader(); 
      var fileData = new Blob([text], {type:'text/x-java'});
      reader.readAsBinaryString(fileData);
      reader.onload = function(e) {
      var contentType = fileData.type || 'text/x-java';
      var metadata = {
                       'title': filename,
                       'mimeType': contentType
                     };

      var base64Data = btoa(reader.result);
      var multipartRequestBody =
          delimiter +
          'Content-Type: application/json\r\n\r\n' +
          JSON.stringify(metadata) +
          delimiter +
          'Content-Type: ' + contentType + '\r\n' +
          'Content-Transfer-Encoding: base64\r\n' +
          '\r\n' +
          base64Data +
          close_delim;

      var request = gapi.client.request(
          {
            'path': '/upload/drive/v2/files',
            'method': 'POST',
            'params': {'uploadType': 'multipart'},
            'headers': {
                         'Authorization': 'Bearer '+myToken.access_token,
                         'Content-Type': 'multipart/mixed; boundary="' + boundary + '"'
                       },
            'body': multipartRequestBody
          }                             );
      if (!callback) 
      {
        callback = function(file) { console.log(file) };
      }
      request.execute(callback);
    }
  }
}

我查看了试图将文档保存到google的网络选项卡,它似乎返回了一个身份验证错误,您查看了他们的客户端身份验证文档了吗

这里是错误

{
 "error": {
  "errors": [
   {
    "domain": "global",
    "reason": "required",
    "message": "Login Required",
    "locationType": "header",
    "location": "Authorization"
   }
  ],
  "code": 401,
  "message": "Login Required"
 }
}

尝试签出并尝试使用javascript

<html>
  <head>
    <script type="text/javascript">
      // Your Client ID can be retrieved from your project in the Google
      // Developer Console, https://console.developers.google.com
      var CLIENT_ID = '<YOUR_CLIENT_ID>';

      var SCOPES = ['https://www.googleapis.com/auth/drive.metadata.readonly'];

      /**
       * Check if current user has authorized this application.
       */
      function checkAuth() {
        gapi.auth.authorize(
          {
            'client_id': CLIENT_ID,
            'scope': SCOPES.join(' '),
            'immediate': true
          }, handleAuthResult);
      }

      /**
       * Handle response from authorization server.
       *
       * @param {Object} authResult Authorization result.
       */
      function handleAuthResult(authResult) {
        var authorizeDiv = document.getElementById('authorize-div');
        if (authResult && !authResult.error) {
          // Hide auth UI, then load client library.
          authorizeDiv.style.display = 'none';
          loadDriveApi();
        } else {
          // Show auth UI, allowing the user to initiate authorization by
          // clicking authorize button.
          authorizeDiv.style.display = 'inline';
        }
      }

      /**
       * Initiate auth flow in response to user clicking authorize button.
       *
       * @param {Event} event Button click event.
       */
      function handleAuthClick(event) {
        gapi.auth.authorize(
          {client_id: CLIENT_ID, scope: SCOPES, immediate: false},
          handleAuthResult);
        return false;
      }

      /**
       * Load Drive API client library.
       */
      function loadDriveApi() {
        gapi.client.load('drive', 'v3', listFiles);
      }

      /**
       * Print files.
       */
      function listFiles() {
        var request = gapi.client.drive.files.list({
            'pageSize': 10,
            'fields': "nextPageToken, files(id, name)"
          });

          request.execute(function(resp) {
            appendPre('Files:');
            var files = resp.files;
            if (files && files.length > 0) {
              for (var i = 0; i < files.length; i++) {
                var file = files[i];
                appendPre(file.name + ' (' + file.id + ')');
              }
            } else {
              appendPre('No files found.');
            }
          });
      }

      /**
       * Append a pre element to the body containing the given message
       * as its text node.
       *
       * @param {string} message Text to be placed in pre element.
       */
      function appendPre(message) {
        var pre = document.getElementById('output');
        var textContent = document.createTextNode(message + '\n');
        pre.appendChild(textContent);
      }

    </script>
    <script src="https://apis.google.com/js/client.js?onload=checkAuth">
    </script>
  </head>
  <body>
    <div id="authorize-div" style="display: none">
      <span>Authorize access to Drive API</span>
      <!--Button for the user to click to initiate auth sequence -->
      <button id="authorize-button" onclick="handleAuthClick(event)">
        Authorize
      </button>
    </div>
    <pre id="output"></pre>
  </body>
</html>

//您的客户ID可以从Google中的项目中检索
//开发者控制台,https://console.developers.google.com
var客户端ID=“”;
变量作用域=['https://www.googleapis.com/auth/drive.metadata.readonly'];
/**
*检查当前用户是否已授权此应用程序。
*/
函数checkAuth(){
gapi.auth.authorize(
{
“客户id”:客户id,
“scope”:SCOPES.join(“”),
“立即”:真
},handleAuthResult);
}
/**
*处理来自授权服务器的响应。
*
*@param{Object}authResult授权结果。
*/
函数handleAuthResult(authResult){
var authorizeDiv=document.getElementById('authorized-div');
if(authResult&!authResult.error){
//隐藏身份验证UI,然后加载客户端库。
authorizeDiv.style.display='none';
loadDriveApi();
}否则{
//显示授权UI,允许用户通过
//单击“授权”按钮。
authorizeDiv.style.display='inline';
}
}
/**
*响应用户单击“授权”按钮,启动身份验证流。
*
*@param{Event}Event按钮单击事件。
*/
函数handleAuthClick(事件){
gapi.auth.authorize(
{client_id:client_id,scope:SCOPES,immediate:false},
手工(结果);
返回false;
}
/**
*加载驱动器API客户端库。
*/
函数loadDriveApi(){
load('drive','v3',listFiles);
}
/**
*打印文件。
*/
函数listFiles(){
var request=gapi.client.drive.files.list({
“页面大小”:10,
“字段”:“下一个GetOken,文件(id,名称)”
});
请求执行(功能(resp){
appendPre('Files:');
var files=resp.files;
如果(files&&files.length>0){
对于(var i=0;i

这将是熟悉代码和使用驱动API时所需的一些步骤的有用方法。希望能有所帮助。

那么,添加
var myToken=gapi.auth.getToken()
'Authorization':'Bearer'+myToken.access\u token,
在标题中修复了这一点(就像我对加载方法所做的那样)?正如Rebot先生所暗示的,401个错误(而且,你会发现,还有一些其他错误)意味着你的呼叫没有被授权。如果已在中设置应用程序和凭据,则用户必须访问该应用程序才能访问其驱动器。如果您使用的是gapi,那么它将存储并使用授权,但是对于直接的http调用,您还可以添加access_令牌作为查询参数:?access_令牌=xyzblahblahblah。这很痛苦,但这是一次性设置。我调用了页面中的
authorize()
。所以源代码看起来像:
。。。const close_delim=“\r\n--”+边界+“--”;checkAuth();var contentType=“text/x-java”;var myToken=gapi.auth.getToken()和更高版本的
。。。gapi.client.request({'path':'/upload/drive/v2/files/'+folderId+“?fileId=“+fileId+”&uploadType=multipart“,'method':'PUT','params':{'fileId':fileId,'uploadType':'multipart','headers':{'Authorization':'Bearer'+myToken.access_-token',Content Type':'multipart/mixed;body=“+boundary+”,},'body':multipartRequestBody,})
但仍然不行。我无法读取未定义的属性'access_-token'。我调用
checkAuth()
,然后使用
var myToken=accesstoken | | | gapi.auth.getToken();
检查是否存在现有的accesstoken(来自全局变量)或者我需要获得一个新的令牌。错误是当我在方法的插入部分添加标题
“Authorization':“Bearer”+myToken.access\u token,
。在这两种情况下,新的更改都不会在Google驱动器文件中更新。搁置您的项目,您尝试过javascript快速启动吗?这肯定会帮助您理解它驱动程序API中的身份验证流程。请更新您的帖子,让我们看看您在代码中更新了什么。提前感谢:)我已经更新了上面的代码。快速启动what where,但它没有反映如何写入Google drive。和是我尝试在上面使用快速启动的授权实现的(以及在“我的文件读取”功能中工作的身份验证。)