JAVA反转义

/**
 * @author zhuangqing
 */
public class Test {

    public static void main(String[] args) {
        char c = '\u672C';
        System.out.println(c);

        String s1 = "\u672C\u7EA7\u53CA\u4E0B\u7EA7";
        System.out.println(s1);

        String s2 = "\\u672C\\u7EA7\\u53CA\\u4E0B\\u7EA7";

        System.out.println(decodeUnicodeStr(s2));
    }

    public static String decodeUnicodeStr(String str) {
        System.out.println("start decode: " + str);
        String[] codeList = str.substring(2).split("\\\\u");
        StringBuilder sb = new StringBuilder();
        for (String code : codeList) {
            char ch = (char) Short.parseShort(code, 16);
            sb.append(ch);
        }
        System.out.println("decode result:" + sb.toString());
        return sb.toString();
    }
}

本
本级及下级
start decode: \u672C\u7EA7\u53CA\u4E0B\u7EA7
decode result:本级及下级
本级及下级