Java实现身份证号码的验证，JAVA后台验证身份证号码

左手的ㄟ右手 2024-02-17 14:32 42阅读 0赞

代码如下：

package cn.gov.csrc.util;
    
    /**
     * 18 位身份证验证器
     * 
     * @author admin
     * 
     */
    public class IDCard {
    
    	final int[] wi = { 7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2, 1 };
    	final int[] vi = { 1, 0, 'X', 9, 8, 7, 6, 5, 4, 3, 2 };
    	private int[] ai = new int[18];
    
    	public IDCard() {
    	}
    
    	public boolean Verify(String idcard) {
    		if (idcard.length() == 15) {
    			idcard = uptoeighteen(idcard);
    		}
    		if (idcard.length() != 18) {
    			return false;
    		}
    		String verify = idcard.substring(17, 18);
    		if (verify.equals(getVerify(idcard))) {
    			return true;
    		}
    		return false;
    	}
    
    	public String getVerify(String eightcardid) {
    		int remaining = 0;
    
    		if (eightcardid.length() == 18) {
    			eightcardid = eightcardid.substring(0, 17);
    		}
    
    		if (eightcardid.length() == 17) {
    			int sum = 0;
    			for (int i = 0; i < 17; i++) {
    				String k = eightcardid.substring(i, i + 1);
    				ai[i] = Integer.parseInt(k);
    			}
    
    			for (int i = 0; i < 17; i++) {
    				sum = sum + wi[i] * ai[i];
    			}
    			remaining = sum % 11;
    		}
    
    		return remaining == 2 ? "X" : String.valueOf(vi[remaining]);
    	}
    
    	public String uptoeighteen(String fifteencardid) {
    		String eightcardid = fifteencardid.substring(0, 6);
    		eightcardid = eightcardid + "19";
    		eightcardid = eightcardid + fifteencardid.substring(6, 15);
    		eightcardid = eightcardid + getVerify(eightcardid);
    		return eightcardid;
    	}
    
    	public static void main(String[] args) {
    		String idcard1 = "350211197607142059";
    		String idcard2 = "350211197607442059";
    
    		IDCard idcard = new IDCard();
    		System.out.println(idcard.Verify(idcard1));
    		System.out.println(idcard.Verify(idcard2));
    		System.out.println(idcard.Verify(idcard3));
    	}
    }