dateoptiontag.java

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package com.wang.tags;

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

public class DateOptionTag  extends BodyTagSupport
{
    JspWriter out=null;
    public int doAfterBody()
    {
        BodyContent body=getBodyContent();
        String content=body.getString();
        out=body.getEnclosingWriter();
        try {
            out.print(content.substring(0,4)+"年"+content.substring(4,6)+"月"+content.substring(6,8)+"号");

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

        return (SKIP_BODY);
	}
}