java csv文件中一列的最大长度是多少？
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What is the maximum length of a column in csv file?
提问by bnguyen82
What is the maximum length of a column in csv file. Is it controllable by java code?
csv文件中一列的最大长度是多少。可以通过java代码控制吗？
回答by Peter Lawrey
You can have a column which is as long as the maximum files size. This is usually limited by the size of hard drive.
您可以拥有一个与最大文件大小一样长的列。这通常受硬盘驱动器大小的限制。
In Java the pratical limit is around 2 billion characters which is the maximum size of a String.
在 Java 中，实际限制是大约 20 亿个字符，这是字符串的最大大小。
You can limit the length if you wish.
如果您愿意，可以限制长度。
回答by Nanne
CSV is a format that says you are separating your values with commas. That's basically it. There is no maximum in that standard.
CSV 是一种格式，表示您用逗号分隔您的值。基本上就是这样。该标准没有最大值。
Your filesystem has a file-size limit, so that stops it, and your code may have a memory problem is you try to read several gigs, but there is no maximum.
您的文件系统有文件大小限制，因此可以阻止它，并且您的代码可能存在内存问题，因为您尝试读取多个演出，但没有最大值。
All possible maximums are defined by other factors, not by it being CSV.
所有可能的最大值都由其他因素定义，而不是 CSV。
回答by Perception
CSV is not a standardized format. There is no prescribed length for any 'column' in the file, nor is there any actual formal requirement for the file apart from a list of values separated by commas.
CSV 不是标准化格式。文件中的任何“列”都没有规定长度，除了以逗号分隔的值列表之外，文件也没有任何实际的正式要求。
回答by TechSpellBound
CSV files don't have a limit on the maximum size except memory constraints.
除内存限制外，CSV 文件对最大大小没有限制。
However, I feel that it would be a very bad architecture using such a big CSV file in your application.
但是，我觉得在您的应用程序中使用如此大的 CSV 文件将是一个非常糟糕的架构。
