标签转换字符 Gb2iso

package com.middle.taglib;

import java.io.IOException;
import javax.servlet.jsp.*;
import javax.servlet.jsp.tagext.BodyContent;
import javax.servlet.jsp.tagext.BodyTagSupport;

public class Gb2iso extends BodyTagSupport
{

    public Gb2iso()
    {
    }

    public void setValue(String value)
    {
        this.value = value;
    }

    public int doEndTag()
        throws JspException
    {
        JspWriter out = pageContext.getOut();
        BodyContent body = getBodyContent();
        String inputStr;
        if(value != null)
            inputStr = value;
        else
        if(body != null && body.getString() != null)
            inputStr = body.getString();
        else
            inputStr = "";
        try
        {
            String outStr = new String(inputStr.getBytes("GBK"), "ISO-8859-1");
            out.print(outStr);
        }
        catch(IOException ex)
        {
            throw new JspTagException("IOException: " + ex.toString());
        }
        return super.doEndTag();
    }

    private static final long serialVersionUID = 0x82574e697459ebf4L;
    private String value;
}