需求是把所有标签中的信息替换成指定内容
例如:
<transName>交易名称</transName><aaa></aaaa><transName>张雪琴</transName><elecAddr>用电地址</elecAddr>
所有transName标签中的内容都替换为"交易名称"
<transName>交易名称</transName>
效果:
<transName>交易名称</transName><aaa></aaaa><transName>交易名称</transName><elecAddr>用电地址</elecAddr>
导入包:
import java.util.HashMap; import java.util.Map; import java.util.regex.Pattern;
示例:
Map<String, Pattern> map = new HashMap<>(); String data2 = "<transName>交易名称</transName><aaa></aaaa><transName>张雪琴</transName><elecAddr>用电地址</elecAddr>"; String reg = "(\\<transName>.+?\\</transName>)"; Pattern patter = Pattern.compile(reg, Pattern.DOTALL | Pattern.MULTILINE); map.put("transName", patter); java.util.regex.Matcher match = map.get("transName").matcher(data2); if (match.find()) { data2 = match.replaceAll("<transName>交易名称</transName>"); } System.out.print(data2);
结果输出:
<transName>交易名称</transName><aaa></aaaa><transName>交易名称</transName><elecAddr>用电地址</elecAddr>
原文：https://www.cnblogs.com/yadongliang/p/11963764.html