1.匹配验证-验证Email是否正确
public static void main(String[] args) {// 要验证的字符串String str = "service@xsoftlab.net";// 邮箱验证规则String regEx = "[a-zA-Z_]{1,}[0-9]{0,}@(([a-zA-z0-9]-*){1,}\\.){1,3}[a-zA-z\\-]{1,}";// 编译正则表达式Pattern pattern = Pattern.compile(regEx);// 忽略大小写的写法// Pattern pat = Pattern.compile(regEx, Pattern.CASE_INSENSITIVE);Matcher matcher = pattern.matcher(str);// 字符串是否与正则表达式相匹配boolean rs = matcher.matches();System.out.println(rs);
}2.在字符串中查询字符或者字符串
public static void main(String[] args) {// 要验证的字符串String str = "baike.xsoftlab.net";// 正则表达式规则String regEx = "baike.*";// 编译正则表达式Pattern pattern = Pattern.compile(regEx);// 忽略大小写的写法// Pattern pat = Pattern.compile(regEx, Pattern.CASE_INSENSITIVE);Matcher matcher = pattern.matcher(str);// 查找字符串中是否有匹配正则表达式的字符/字符串boolean rs = matcher.find();System.out.println(rs);
}
