Question

我尝试更新google驱动器文件权限，即尝试提供新角色。但它抛出异常。这是示例代码。

Permission content = new Permission();
permission.setRole("Reader");
permission.setType("user");
permission.setEmailAddress("x@gmail.com");
driveService.permissions().update(fileId, permissionId, permission).queue(batch, callback);

对于此示例代码，我得到了Json异常，如下所示

{
 "error": {
  "errors": [
   {
    "domain": "global",
    "reason": "fieldNotWritable",
    "message": "The resource body includes fields which are not directly writable."
   }
  ],
  "code": 403,
  "message": "The resource body includes fields which are not directly writable."
 }
}

有些人可以帮我解决这个问题吗？

Answer 1

我犯了一个错误，即除了用户新角色之外还添加了用户电子邮件地址和类型。但是这两个字段在Drive REST API v3中不可覆盖。所以我得到了例外。更正的示例代码为foillows

Permission content = new Permission();
content.setId(id_of_the_file);
content.setRole("Reader");
driveService.permissions().update(fileId, permissionId, permission).setFields("role").execute();

Answer 2

我认为您需要首先获得API的许可。你错过了这一行：

权限权限= service.permissions（）。get（ fileId，permissionId）.execute（）;

像：

public class MyClass {

// ...

/**
* Update a permission's role.
*
* @param service Drive API service instance.
* @param fileId ID of the file to update permission for.
* @param permissionId ID of the permission to update.
* @param newRole The value "owner", "writer" or "reader".
* @return The updated permission if successful, {@code null} otherwise.
*/
private static Permission updatePermission(Drive service, String fileId,
String permissionId, String newRole) {

    try {
        // First retrieve the permission from the API.
        Permission permission = service.permissions().get(fileId, permissionId).execute();

        permission.setRole(newRole);

        return service.permissions().update(fileId, permissionId, permission).execute();

    } catch (IOException e) {
        System.out.println("An error occurred: " + e);
    }

    return null;

}

// ...

}

文档here中的更多详细信息。

如何使用REST API更新谷歌驱动器文件权限？

2 个答案: