用< br />替换\ n和\\\\ n在java中 [英] replace \n and \r\n with <br /> in java

问题描述

对于多种语言，已经多次询问过这种情况，但我无法使用它。
我有一个这样的字符串

This has been asked several times for several languages but I can't get it to work. I have a string like this

String str = "This is a string.\nThis is a long string.";

我正在尝试更换 \ n 使用< br /> 使用

And I'm trying to replace the \n with <br /> using

str = str.replaceAll("(\r\n|\n)", "<br />");

但 \ n 未获得更换。
我尝试使用此 RegEx工具进行验证，我看到相同的结果。输入字符串与（\\\\ n | \ n）不匹配。我做错了什么？

but the \n is not getting replaced. I tried to use this RegEx Tool to verify and I see the same result. The input string does not have a match for "(\r\n|\n)". What am i doing wrong ?

推荐答案

它对我有用。

public class Program
{
    public static void main(String[] args) {
        String str = "This is a string.\nThis is a long string.";
        str = str.replaceAll("(\r\n|\n)", "<br />");
        System.out.println(str);
    }
}

结果：

This is a string.<br />This is a long string.

您的问题出在其他地方。

Your problem is somewhere else.

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