ConvertUtils.java

package cn.binux.utils;

/**
 * String编码转换
 *
 * @author xubin.
 * @create 2017-02-09 下午4:55
 */


public final class ConvertUtils {

    /**
     * 将字符串转成unicode
     *
     * @param str 待转字符串
     * @return unicode字符串
     */
    public static String convert(String str) {
        str = (str == null ? "" : str);
        String tmp;
        StringBuffer sb = new StringBuffer(1000);
        char c;
        int i, j;
        sb.setLength(0);
        for (i = 0; i < str.length(); i++) {
            c = str.charAt(i);
            sb.append("\\u");
            j = (c >>> 8); //取出高8位
            tmp = Integer.toHexString(j);
            if (tmp.length() == 1)
                sb.append("0");
            sb.append(tmp);
            j = (c & 0xFF); //取出低8位
            tmp = Integer.toHexString(j);
            if (tmp.length() == 1)
                sb.append("0");
            sb.append(tmp);

        }
        return (new String(sb));
    }
}