2019獨角獸企業(yè)重金招聘Python工程師標(biāo)準(zhǔn)>>>

<%@ page import="java.util.regex.Pattern" %>
<%@ page import="java.util.regex.Matcher" %>
<%@ page import="java.util.List" %>
<%@ page import="java.util.ArrayList" %>

<%@ page import="java.util.HashMap" %>
<%@ page import="java.util.Map" %>
<%@ page import="org.apache.commons.lang.StringUtils" %><%--
?Created by IntelliJ IDEA.
?To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%

//String callbackurl="http://gad.netease.com/mmad/click?s=o%2FYhx2YEuzG0A4tdBTuxfvAWBzo%3D&project_id=11612469&monitor_type=4&idfa={idfa}&imei={idfa}";
//
// ? ?String s = "dsadsadas({idfa})<peter>dsadasdas<lionel>\"www.163.com\"<kenny>{idfa}<>";
// ? ?Pattern p = Pattern.compile("(\\{[^>]*})");
// ? ?Matcher m = p.matcher(s);
// ? ?List<String> result=new ArrayList<String>();
// ? ?while(m.find()){
// ? ? ? ?result.add(m.group());
// ? ?}
// ? ?for(String s1:result){
// ? ? ? ?System.out.println(s1);
// ? ?}


? ?Map<String,String> tokens = new HashMap<String,String>();
? ?tokens.put("cat", "Garfield");
? ?tokens.put("beverage", "coffee");
? ?tokens.put("jim", "ccf");

? ?//匹配類似velocity規(guī)則的字符串
? ?String template = "{cat} really needs {jim} some {beverage}.";
? ?//生成匹配模式的正則表達式
? ?String patternString = "\\{(" + StringUtils.join(tokens.keySet(), "|") + ")\\}";

? ?Pattern pattern = Pattern.compile(patternString);
? ?Matcher matcher = pattern.matcher(template);

? ?//兩個方法：appendReplacement, appendTail
? ?StringBuffer sb = new StringBuffer();
? ?while(matcher.find()) {
? ? ? ?matcher.appendReplacement(sb, tokens.get(matcher.group(1)));
? ?}
? ?matcher.appendTail(sb);

? ?//out: Garfield really needs some coffee.
? ?System.out.println(sb.toString());



%>

轉(zhuǎn)載于:https://my.oschina.net/u/564141/blog/669234

總結(jié)

以上是生活随笔為你收集整理的java 正则提取及替换字符串的全部內(nèi)容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網(wǎng)站內(nèi)容還不錯，歡迎將生活随笔推薦給好友。