Java 正则表达式
语法：https://msdn.microsoft.com/zh-cn/library/ae5bf541(v=vs.80).aspx
1、车牌号：
/**
*
* @description:验证车牌号
* @param carNum
* 豫A106EK
* @return 合法：true 不合法：false
*/
public static boolean validateCarNum(String carNum) {
boolean result = false;
String[] provence = new String[] { "京", "津", "冀", "晋", "辽", "吉", "黑", "沪", "苏", "浙", "皖", "闽", "赣", "鲁", "豫", "鄂", "湘", "粤", "桂", "琼", "渝",
"川", "黔", "滇", "藏", "陕", "甘", "青", "宁", "新", "港", "澳", "蒙" };
String reg = "[\u4e00-\u9fa5]{1}[A-Z]{1}[A-Z_0-9]{5}";
boolean firstChar = false;
if (carNum.length() > 0) {
firstChar = Arrays.asList(provence).contains(carNum.substring(0, 1));
}
try {
Pattern p = Pattern.compile(reg);
Matcher m = p.matcher(carNum);
if (m.matches() && firstChar) {
result = true;
} else {
result = false;
}
} catch (Exception e) {
e.printStackTrace();
}
return result;
}
2、手机号码：
/**
*
* @description:验证手机号码
* @param mobileNum 15516985859
* @return 合法：true 不合法：false
*/
public static boolean isMobileNum(String mobileNum) {
boolean result = false;
try {
Pattern p = Pattern.compile("^((13[0-9])|(15[^4,\\D])|(18[0,5-9]))\\d{8}$");
Matcher m = p.matcher(mobileNum);
result = m.matches();
} catch (Exception e) {
e.printStackTrace();
}
return result;
}
参考：http://www.233.com/Java/zhuanye/20100924/102546666.html
手机号+固定电话：010-1111111,15516985859,0377-1111111
//java检测是否为电话号码（手机、固定电话验证）
String legalPhone = "";
String regExp ="^((13[0-9])|(15[^4,\\D])|(18[0,5-9]))\\d{8}|[0]{1}[0-9]{2,3}-[0-9]{7,8}$";
Pattern p = Pattern.compile(regExp);
Matcher m = p.matcher(importPotentialBFOs[i].getLegalPhone());
if(m.find()){ //注意：m.find只能用一次，第二次调用后都为false
legalPhone = importPotentialBFOs[i].getLegalPhone();
uploadTmp.setLegalTelephone(legalPhone);
}else{
throw new BizException("联系电话格式错误!");
}
参考：http://blog.csdn.net/civilized/article/details/35231627
3.实数：
String[] arrs=new String[]{"a","1.123","-1.23","0","+111"};
String regex="-?\\d+\\.?\\d*";
Pattern p = Pattern.compile(regex);
for (int i = 0; i < arrs.length; i++) {
Matcher m = p.matcher(arrs[i]);
System.out.println(arrs[i]+":"+m.matches());
}
打印：
a:false
1.123:true
-1.23:true
0:true
+111:false