1
我需要用一个名为group的正则表达式替换{word}:(?< word> \ w ++)以后的匹配表达式,即:/ {name}/{age} ...这段代码不起作用!这个替换代码有什么问题?
String p = "/{name}/{id}";
p = p.replaceAll("\\{(\\w+)\\}", "(?<$1>\\\\\\\\w+)");
Pattern URL_PATTERN = Pattern.compile(p);
CharSequence cs = "/lucas/3";
Matcher m = URL_PATTERN.matcher(cs);
if(m.matches()){
for(int i=1;i<m.groupCount();++i){
System.out.println(m.group("name"));
}
}
结果:没有什么:(
但是,当我拿到更换的结果:/(?\ w +)/(?\ w +),并把在Pattern.compile()这个工程:
String p = "/{name}/{id}";
p = p.replaceAll("\\{(\\w+)\\}", "(?<$1>\\\\\\\\w+)");
Pattern URL_PATTERN = Pattern.compile("/(?<name>\\w+)/(?<id>\\w+)");
System.out.println(p);
CharSequence cs = "/lucas/3";
Matcher m = URL_PATTERN.matcher(cs);
if(m.matches()){
for(int i=1;i<m.groupCount();++i){
System.out.println(m.group("name"));
}
}
结果: “卢卡斯”
什么是错
它的工作原理! :) 谢谢! – 2012-08-04 14:09:17
很高兴我能帮忙:) – Pshemo 2012-08-04 14:11:36