我使用正则表达式和字符串replaceFirst来替换下面的模式。
String xml = "<param>otpcode=1234567</param><param>password=abc123</param>";
if(xml.contains("otpcode")){
Pattern regex = Pattern.compile("<param>otpcode=(.*)</param>");
Matcher matcher = regex.matcher(xml);
if (matcher.find()) {
xml = xml.replaceFirst("<param>otpcode=" + matcher.group(1)+ "</param>","<param>otpcode=xxxx</param>");
}
}
System.out.println(xml);
if (xml.contains("password")) {
Pattern regex = Pattern.compile("<param>password=(.*)</param>");
Matcher matcher = regex.matcher(xml);
if (matcher.find()) {
xml = xml.replaceFirst("<param>password=" + matcher.group(1)+ "</param>","<param>password=xxxx</param>");
}
}
System.out.println(xml);
所需的O / p
<param>otpcode=xxxx</param><param>password=abc123</param>
<param>otpcode=xxxx</param><param>password=xxxx</param>
实际o / p(在第一个IF本身的单个镜头中替换整个字符串)
<param>otpcode=xxxx</param>
<param>otpcode=xxxx</param>
答案 0 :(得分:4)
你需要做一个非贪婪的正则表达式:
<param>otpcode=(.*?)</param>
<param>password=(.*?)</param>
这将匹配第一个</param>
而非最后一个......