正则表达式使用

//判断证件号码是那种类型的（1是15位，2是18位，3是组织机构代码证，0是无效）
	private  int panduanCard(String str){
		String ps15 = "^\\d{15}$";
		String ps18 = "^\\d{17}(\\d|X)$";
		//组织机构代码证正则
		String zzjg = "^[a-zA-Z0-9]{8}-[a-zA-Z0-9]$";
		PatternCompiler orocom = new Perl5Compiler();
		try {
			Pattern pattern1 = orocom.compile(ps15);
			Pattern pattern2 = orocom.compile(ps18);
			Pattern zzPattern = orocom.compile(zzjg);
			PatternMatcher matcher = new Perl5Matcher();
			if (matcher.contains(str, pattern1)) {
				return 1;
			}else if (matcher.contains(str, pattern2)) {
				return 2;
			}else if (matcher.contains(str, zzPattern)) {
				return 3;
			}
		} catch (MalformedPatternException e) {
			e.printStackTrace();
		}
		return 0;
		
	}

//判断18位是否为身份证
	private  boolean isIdCard(String str){
		Integer[] rows=new Integer[17];
		for (int i = 0; i < rows.length; i++) {
			rows[i]=Integer.parseInt(str.charAt(i)+"");
		}
		//权值
		Integer[] quanvalue={7,9,10,5,8,4,2,1,6,3,7,9,10,5,8,4,2};
		//校验码
		String[] check={"1","0","X","9","8","7","6","5","4","3","2"};
		int tot=0;
		for (int i = 0; i < quanvalue.length; i++) {
			tot+=rows[i]*quanvalue[i];
		}
		int yushu = tot%11;
		return check[yushu].equals(str.substring(17, 18).toUpperCase());
		
	}

//15位升为成18位
	private String shengwei(String str){
		String newString=str.substring(0, 6)+"19"+str.substring(6, str.length());
		Integer[] rows=new Integer[17];
		for (int i = 0; i < rows.length; i++) {
			rows[i]=Integer.parseInt(newString.charAt(i)+"");
		}
		//权值
		Integer[] quanvalue={7,9,10,5,8,4,2,1,6,3,7,9,10,5,8,4,2};
		//校验码
		String[] check={"1","0","X","9","8","7","6","5","4","3","2"};
		int tot=0;
		for (int i = 0; i < quanvalue.length; i++) {
			tot+=rows[i]*quanvalue[i];
		}
		int yushu = tot%11;
		return newString+check[yushu];
		
	}

正则表达式使用

原文：http://blog.csdn.net/baidu_16597357/article/details/42388051