问题描述
在正则表达式处理期间，似乎拒绝包含字符 {或} 的字符串。我可以理解这些是保留字符，如果我这样做，我需要逃避它们：
It seems that having a string that contains the characters { or } is rejected during regex processing. I can understand that these are reserved characters and I need to escape them so if I do:
string.replaceAll("\\" + pattern);
这是有效的，其中模式是任何字符串从 {开始。
This works, where pattern is any string starting with {.
问题：有没有办法避免此类问题已经包含此类metachars的字符串，以便自动处理？在我看来它应该与在字符串文字中添加双引号相比，接受字符串作为已经具有双引号的输入
Question: Is there a way to avoid such problems with strings that already contain such metachars so that it is handled automatically? Seems to me it should be the same as adding a double quote in a string literal vs accepting a string as input that already has the double quote
推荐答案
使用：
public static String quote(String s)
返回文字模式字符串表示指定的字符串。
Returns a literal pattern String for the specified String.
此方法产生 String ，可用于创建一个模式，它将匹配字符串 s as如果它是一个文字模式。
This method produces a String that can be used to create a Pattern that would match the string s as if it were a literal pattern.
输入序列中的元字符或转义序列没有特殊含义。
Metacharacters or escape sequences in the input sequence will be given no special meaning.
参数：
s - 要字面化的字符串
返回：
文字字符串替换
自：
1.5
Parameters:
s - The string to be literalized
Returns:
A literal string replacement
Since:
1.5
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