【转】关于金额验证的Java方法（采用正则表达式）
public static 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 static 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}quot;); match = pattern.matcher(str.trim()); } } return match.matches(); }
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