2014-06-15 27 views
0

我对Java很陌生,对Google Data API也是新手。我正尝试在公开共享的电子表格中更改工作表的大小。我使用下面的代码:Java Google Spreadsheet API:更新公共工作表'java.lang.UnsupportedOperationException:条目无法更新'

import com.google.gdata.client.authn.oauth.*; 
import com.google.gdata.client.spreadsheet.*; 
import com.google.gdata.data.*; 
import com.google.gdata.data.batch.*; 
import com.google.gdata.data.spreadsheet.*; 
import com.google.gdata.util.*; 

import java.io.IOException; 
import java.net.*; 
import java.util.*; 
static void writeToGoogleSpreadsheet(String spreadsheetKey) throws IOException, ServiceException { 
     SpreadsheetService service = new SpreadsheetService("com.example"); 
     String urlString = "https://spreadsheets.google.com/feeds/worksheets/" + spreadsheetKey + "/public/basic"; 

     URL url = new URL(urlString); 

    try { 
     WorksheetFeed worksheetFeed = service.getFeed(url, WorksheetFeed.class); 
     List<WorksheetEntry> worksheets = worksheetFeed.getEntries(); 
     WorksheetEntry worksheet = worksheets.get(0); 

     System.out.println(worksheet.getTitle().getPlainText()); 
     System.out.println(worksheet.getCanEdit()); 

     // Update the local representation of the worksheet. 
     worksheet.setTitle(new PlainTextConstruct("Updated Worksheet")); 
     worksheet.setColCount(40); 
     worksheet.setRowCount(40); 

     // Send the local representation of the worksheet to the API for 
     // modification. 
     worksheet.update(); 
    } finally{} 
} 

控制台显示正确的工作表名称和大小,所以我敢肯定,我访问权工作。但是,worksheet.update()会引发以下异常:

Exception in thread "main" java.lang.UnsupportedOperationException: Entry cannot be updated 
at com.google.gdata.data.BaseEntry.update(BaseEntry.java:635) 
atcom.example.GoogleSpreadsheetCommunicator.writeToGoogleSpreadsheet(GoogleSpreadsheetCommunicator.java:119) 
at com.example.Main.guildSim(Main.java:114) 
at com.example.Main.main(Main.java:73) 

有没有人知道我在做什么错?

感谢您的阅读和亲切的问候,

卡雷尔

回答

0

您无法编辑公共提要, 变化urlString使用.../private/...

,你将需要使用的3种方式之一验证你可以找到https://developers.google.com/google-apps/spreadsheets/#authorizing_requests_with_clientlogin

+0

这将解释很多!谢谢!你有没有关于这方面的未来参考文件?由于https://developers.google.com/google-apps/spreadsheets/#working_with_cell-based_feeds'注意:单元格Feed支持私人和公共的可见性,以及完整和基本投影。“表明可以编辑公共流。 – user3613853

+0

np!我从经验中了解到这一点,面临同样的问题,所以我查看了BaseEntry.java的源代码。同时请将答案标记为已接受,以便可以帮助他人 –