spring 里的工具类 StringEscapeUtils 的用法

 

import java.io.UnsupportedEncodingException;

import org.apache.commons.lang.StringEscapeUtils;
import org.apache.commons.lang.StringUtils;

public class HtmlEncode
{
    public static void main(String[] args)
    {
        String ex = "中国";
        String s = StringUtils.escape(ex);
        System.out.println(s); // \u4E2D\u56FD

        s = StringEscapeUtils.escapeHtml(ex);
        System.out.println(s); // 中国

        s = StringEscapeUtils.unescapeHtml(ex);
        System.out.println(s); // \u4E2D\u56FD

        for (byte b : ex.getBytes())
        {
            System.out.print(Integer.toHexString((int) b));
            // ffffffd6ffffffd0ffffffb9fffffffa

        }
        System.out.println();
        try
        {
            for (byte b : ex.getBytes("iso-8859-1"))
            {
                System.out.print(Integer.toHexString((int) b));
                // 3f3f

            }
        }
        catch (UnsupportedEncodingException e)
        {
            e.printStackTrace();
        }
        System.out.println();
        try
        {
            for (byte b : ex.getBytes("utf-8"))
            {
                System.out.print(Integer.toHexString((int) b));
                // ffffffe4ffffffb8ffffffadffffffe5ffffff9bffffffbd

            }
        }
        catch (UnsupportedEncodingException e)
        {
            e.printStackTrace();
        }
    }
}