lockback日志脱敏

项目中打印到控台的敏感信息，需要做脱敏出来

记录下来，防止遗忘

一、重写MessageConverter

import java.util.Arrays;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import ch.qos.logback.classic.pattern.MessageConverter;
import ch.qos.logback.classic.spi.ILoggingEvent;

import com.xxx.xxx.util.utils.SensitiveInfoUtils;

public class SensitiveDataConverter extends MessageConverter {

	/**
	 * 日志脱敏开关
	 */
	private static String converterCanRun = "true";

	/**
	 * 日志脱敏关键字
	 */
	// 身份证号码脱敏
	private static String[] idNoKeys = new String[] {
			"idNo", "contactIdNo", "accountIdNo"
	};

	// 中文名
	private static String[] nameKeys = new String[] {
	// "name"
	};

	// 银行卡号码脱敏
	private static String[] bankCardKeys = new String[] {
			"bankActId", "cardNo", "cardNum"
	};

	// 手机号码脱敏
	private static String[] mobileKeys = new String[] {
			"mobile", "contactTelno"
	};

	@Override
	public String convert(ILoggingEvent event) {
		// 获取原始日志
		String oriLogMsg = event.getFormattedMessage();
		// 获取脱敏后的日志
		String afterLogMsg = invokeMsg(oriLogMsg);
		return afterLogMsg;
	}

	/**
	 * 处理日志字符串，返回脱敏后的字符串
	 * 
	 * @param msg
	 * @return
	 */
	public String invokeMsg(final String oriMsg) {
		String tempMsg = oriMsg;
		if ("true".equals(converterCanRun)) {
			String[] keysArray = this.concatAll(idNoKeys, nameKeys, bankCardKeys, mobileKeys);
			for (String key : keysArray) {
				int index = -1;
				do {
					index = tempMsg.indexOf(key, index + 1);
					if (index != -1) {
						// 判断key是否为单词字符
						if (isWordChar(tempMsg, key, index)) {
							continue;
						}
						// 寻找值的开始位置
						int valueStart = getValueStartIndex(tempMsg, index + key.length());

						// 查找值的结束位置（逗号，分号）
						int valueEnd = getValuEndEIndex(tempMsg, valueStart);

						// 对获取的值进行脱敏
						String subStr = tempMsg.substring(valueStart, valueEnd);
						subStr = tuomin(subStr, key);
						tempMsg = tempMsg.substring(0, valueStart) + subStr + tempMsg.substring(valueEnd);
					}
				} while (index != -1);
			}
		}
		return tempMsg;
	}

	private <T> T[] concatAll(T[] first, T[]... rest) {
		int totalLength = first.length;
		for (T[] array : rest) {
			totalLength += array.length;
		}
		T[] result = Arrays.copyOf(first, totalLength);
		int offset = first.length;
		for (T[] array : rest) {
			System.arraycopy(array, 0, result, offset, array.length);
			offset += array.length;
		}
		return result;
	}

	private static Pattern pattern = Pattern.compile("[0-9a-zA-Z]");

	/**
	 * 判断从字符串msg获取的key值是否为单词 ， index为key在msg中的索引值
	 * 
	 * @return
	 */
	private boolean isWordChar(String msg, String key, int index) {

		// 必须确定key是一个单词............................
		if (index != 0) { // 判断key前面一个字符
			char preCh = msg.charAt(index - 1);
			Matcher match = pattern.matcher(preCh + "");
			if (match.matches()) {
				return true;
			}
		}
		// 判断key后面一个字符
		char nextCh = msg.charAt(index + key.length());
		Matcher match = pattern.matcher(nextCh + "");
		if (match.matches()) {
			return true;
		}
		return false;
	}

	/**
	 * 获取value值的开始位置
	 * 
	 * @param msg 要查找的字符串
	 * @param valueStart 查找的开始位置
	 * @return
	 */
	private int getValueStartIndex(String msg, int valueStart) {
		// 寻找值的开始位置.....................