[英]How to replace exact string containing characters @ and # in java
Hi I am getting trouble in replacing the exact string containing # and @ characters. 嗨,我在替换包含#和@字符的确切字符串时遇到麻烦。 I tried
mytext.replaceAll('\\\\b('+text+')\\\\b',"testtest");
我尝试了
mytext.replaceAll('\\\\b('+text+')\\\\b',"testtest");
also but it also didn't helped. 也,但也没有帮助。 Exact string means the exact word.
确切的字符串表示确切的单词。
String myStr = "test1 test";
myStr= myStr.replaceAll('\\b('+ Pattern.quote("test") +')\\b',"notest")//out put string "test1 notest"
//Exact word means only "test" is getting replace not "test" from "test1" word to notest1
String myStr1 = "test1 #test";
myStr1 = myStr1.replaceAll('\\b('+Pattern.quote("#test") +')\\b',"notest")//out put string "test1 #test", #test is not replaced
Can some one please help me. 有人可以帮帮我吗。 Thanks in advance
提前致谢
You have several compilation errors. 您有几个编译错误。
This piece of code is working for me: 这段代码为我工作:
String myStr = "test1 test";
myStr= myStr.replaceAll("\\b("+ Pattern.quote("test") +")\\b","notest");
System.out.println(myStr);
String myStr1 = "test1 #test";
myStr1 = myStr1.replaceAll("\\b("+Pattern.quote("#test") +")\\b","notest");
System.out.println(myStr);
I think what you want is: 我认为您想要的是:
mytext.replaceAll("(^|\\W)("+text+")($|\\W)", "$1"+replacement+"$3"))
The problem with \\b
in your solution is that it only matches [a-zA-Z0-9_]
and #
as well as @
separate your words instead of being included. 解决方案中
\\b
的问题在于,它仅与[a-zA-Z0-9_]
和#
以及@
匹配,而不是将它们分开。
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