什麼是通過電子表格api更新大量數據的谷歌電子表格的最快方法？

Question

我正在使用Google Spreadsheet API來更新包含大量數據（數百行和大約20列）的電子表格。

我測試了一個批量調用來更新2500個單元格。通話需要大約40秒才能完成，請求約爲1mb，響應爲2mb。

有什麼辦法讓它更快的工作嗎？

Answer 1

如果要更新整個行，你可以嘗試用基於列表的飼料工作：

http://code.google.com/intl/fr-FR/apis/spreadsheets/data/3.0/developers_guide.html#UpdatingListRows

它可以讓你更新值（不是公式）。

如果仍然有性能問題，你應該（如果您正在使用谷歌應用程序引擎的工作）切換到像關係數據庫服務器或谷歌的數據存儲

Answer 2

我能夠加快在提供的批量要求官方API http://code.google.com/apis/spreadsheets/data/3.0/developers_guide.html#SendingBatchRequests通過在UPDATE之前跳過QUERY部分。因此，這是他們在例如：

// Prepare the update 
    // getCellEntryMap is what makes the update fast. 
    Map cellEntries = getCellEntryMap(ssSvc, cellFeedUrl, cellAddrs); 

    CellFeed batchRequest = new CellFeed(); 
    for (CellAddress cellAddr : cellAddrs) { 
     URL entryUrl = new URL(cellFeedUrl.toString() + "/" + cellAddr.idString); 
     CellEntry batchEntry = new CellEntry(cellEntries.get(cellAddr.idString)); 
     batchEntry.changeInputValueLocal(cellAddr.idString); 
     BatchUtils.setBatchId(batchEntry, cellAddr.idString); 
     BatchUtils.setBatchOperationType(batchEntry, BatchOperationType.UPDATE); 
     batchRequest.getEntries().add(batchEntry); 
    } 
    // Submit the update 
    Link batchLink = cellFeed.getLink(Link.Rel.FEED_BATCH, Link.Type.ATOM); 
    CellFeed batchResponse = ssSvc.batch(new URL(batchLink.getHref()), batchRequest); 

，這就是我把它改成

CellFeed batchRequest = new CellFeed(); 
     for (CellInfo cellAddr : cellsInfo) { 
      CellEntry batchEntry = new CellEntry(cellAddr.row, cellAddr.col, cellAddr.idString); 
       batchEntry.setId(String.format("%s/%s", worksheet.getCellFeedUrl().toString(), cellAddr.idString));   
       BatchUtils.setBatchId(batchEntry, cellAddr.idString); 
       BatchUtils.setBatchOperationType(batchEntry, BatchOperationType.UPDATE); 
       batchRequest.getEntries().add(batchEntry); 



     } 

     CellFeed cellFeed = ssSvc.getFeed(worksheet.getCellFeedUrl(), CellFeed.class);  
     Link batchLink = cellFeed.getLink(Link.Rel.FEED_BATCH, Link.Type.ATOM); 

     ssSvc.setHeader("If-Match", "*"); 
     CellFeed batchResponse = ssSvc.batch(new URL(batchLink.getHref()), batchRequest); 
     ssSvc.setHeader("If-Match", null); 

公告，標題應該改變，使其工作。

Answer 3

加速：張貼由大衛Tolioupov - 它的作品。一些額外的信息，幫助。

的如何使用CellFeed示例，請參見CellDemo.java http://gdata-java-client.googlecode.com/svn-history/r51/trunk/java/sample/spreadsheet/cell/CellDemo.java

的例子有更多的細節，足夠的細節，它幫我優化我的代碼。

如前所述由大衛Tolioupov，創建CellEntry這樣：

CellEntry batchEntry = new CellEntry(cellAddr.row, cellAddr.col, cellAddr.idString); 
batchEntry.setId(String.format("%s/%s", cellFeedUrl.toString(), cellAddr.idString)); 

從例如：

/** 
* Returns a CellEntry with batch id and operation type that will tell the 
* server to update the specified cell with the given value. The entry is 
* fetched from the server in order to get the current edit link (for 
* optimistic concurrency). 
* 
* @param row the row number of the cell to operate on 
* @param col the column number of the cell to operate on 
* @param value the value to set in case of an update the cell to operate on 
* 
* @throws ServiceException when the request causes an error in the Google 
*   Spreadsheets service. 
* @throws IOException when an error occurs in communication with the Google 
*   Spreadsheets service. 
*/ 
private CellEntry createUpdateOperation(int row, int col, String value) 
    throws ServiceException, IOException { 
    String batchId = "R" + row + "C" + col; 
    URL entryUrl = new URL(cellFeedUrl.toString() + "/" + batchId); 
    CellEntry entry = service.getEntry(entryUrl, CellEntry.class); 
    entry.changeInputValueLocal(value); 
    BatchUtils.setBatchId(entry, batchId); 
    BatchUtils.setBatchOperationType(entry, BatchOperationType.UPDATE); 

    return entry; 
} 

所有需要的是cellFeedUrl，然後創建請求和發送。