package com.yunfatong.evidence.utils; import cn.hutool.core.collection.CollUtil; import cn.hutool.poi.excel.ExcelBase; import cn.hutool.poi.excel.ExcelUtil; import cn.hutool.poi.excel.ExcelWriter; import cn.hutool.poi.excel.StyleSet; import org.apache.poi.ss.usermodel.CellStyle; import org.apache.poi.ss.usermodel.Font; import org.apache.poi.ss.usermodel.Workbook; import org.apache.poi.xssf.usermodel.XSSFCellStyle; import java.util.List; import java.util.regex.Matcher; import java.util.regex.Pattern; public class Test { public static void main(String[] args) { String str = "10.255.130.32;0.0.0.0;192.168.100.10"; //1.創建匹配模式 Pattern pattern = Pattern.compile("10\\.255\\.130\\.32|192\\.168\\.100\\.10");//匹配一個或多個數字字符 //2.選擇匹配對象 Matcher matcher = pattern.matcher(str); //與誰匹配?與參數字符串str匹配 int count = 0; while (matcher.find())//matcher.find()用於查找是否有這個字符,有的話返回true { System.out.println("第" + (++count) + "次找到"); //start()返回上一個匹配項的起始索引 //end()返回上一個匹配項的末尾索引。 System.out.println(str.substring(matcher.start(),matcher.end())); } } }