数字正则匹配

最新推荐文章于 2025-02-28 16:41:37 发布

MN_Yang

最新推荐文章于 2025-02-28 16:41:37 发布

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本文链接：https://blog.youkuaiyun.com/yang_chj/article/details/54585941

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public boolean isNumber(String str) {
java.util.regex.Pattern pattern = java.util.regex.Pattern.compile("[0-9]*");
java.util.regex.Matcher match = pattern.matcher(str.trim());
return match.matches();
}

public boolean isBigDecimal(String str) {
java.util.regex.Matcher match =null;
if(isNumber(str)==true){
java.util.regex.Pattern pattern = java.util.regex.Pattern.compile("[0-9]*");
match = pattern.matcher(str.trim());
}else{
if(str.trim().indexOf(".")==-1){
java.util.regex.Pattern pattern = java.util.regex.Pattern.compile("^[+-]?[0-9]*");
match = pattern.matcher(str.trim());
}else{
java.util.regex.Pattern pattern = java.util.regex.Pattern.compile("^[+-]?[0-9]+(\\.\\d{1,100}){1}");
match = pattern.matcher(str.trim());
}
}
return match.matches();
}