如何用java将反斜杠替换为正斜杠?

I'm importing a CSV file to MySQL database. This can be done using java.mysql support for forward slash in file path. If user gives the path

我正在导入一个CSV文件到MySQL数据库。这可以使用java实现。mysql支持文件路径的正斜杠。如果用户给出路径

c:\upload\date\csv\sample.csv

MySQL doesn't support this type of path pattern. I want to search for backslashes in the path and replace them with a forward slash, to give this:

MySQL不支持这种路径模式。我想在路径中搜索反斜杠，然后用一个正斜杠替换它们，得到如下结果:

  c:/upload/date/csv/sample.csv

How is that done?

是怎么做到的呢?

3 个解决方案

#1

In java, use this:

在java中,使用这个:

str = str.replace("\\", "/");

Note that the regex version of replace, ie replaceAll(), is not required here; replace() still replaces all occurrences of the search term, but it searches for literal Strings, not regex matches.

注意，这里不需要regex版本的replace ();replace()仍然替换搜索词出现的所有内容，但它搜索的是文字字符串，而不是正则表达式匹配。

#2

The String.replace(CharSequence, CharSequence) example provided by @PaulPRO and @Bohemian will work, but its better to use the String.replace(char, char) version. Slightly faster. Though you won't have a noticeable speed difference, its better to do such optimisations where possible.

的字符串。由@PaulPRO和@Bohemian提供的替换(CharSequence, CharSequence)示例可以工作，但是最好使用字符串。替换(字符,字符)版本。稍快。虽然您不会有明显的速度差异，但最好在可能的地方做这样的优化。

String replacedStr = str.replace('\\', '/');

#3

If you have:

如果你有:

String s = "c:\\upload\\date\\csv\\sample.csv";

上传字符串s = " c:\ \ \ \ \ \ csv \ \ sample.csv日期”;

In Java, you can just use:

在Java中，您可以使用:

s = s.replace("\\", "/");

s =。替换(“\ \”,“/”);

Which will make s equal to:

这将使s等于:

c:/upload/date/csv/sample.csv

c:/上传/日期/ csv / sample.csv

#1