?? now.java
字號:
/*
這個示例用于向頁傳送當前日期信息
*/
package TestClass;
import javax.servlet.jsp.tagext.TagSupport;
import javax.servlet.jsp.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.Calendar;
import java.text.DecimalFormat;
public class Now extends TagSupport
{
//當起始標記被讀到時調用
public int doStartTag() throws JspException
{
return this.SKIP_BODY; //聲明沒有體,所以返回的SKIP_BODY
}
//當結束標記被讀到時調用
public int doEndTag() throws JspException
{
Thread t=new Thread();
t.start();
DecimalFormat df2 = new DecimalFormat("00");
Calendar c = Calendar.getInstance(); //得到當前時間
try
{
//pageContext是超類的一個保護屬性
JspWriter out = pageContext.getOut(); //獲得向JSP的輸出流
try
{
Thread.sleep(1000);
}
catch(InterruptedException e) {}
out.print(c.get(Calendar.YEAR) + "-" + df2.format(c.get(Calendar.MONTH)+1) + "-" + df2.format(c.get(Calendar.DAY_OF_MONTH)) + " " + df2.format(c.get(Calendar.HOUR_OF_DAY)) + ":" + df2.format(c.get(Calendar.MINUTE)) + ":" + df2.format(c.get(Calendar.SECOND)));
}
catch (IOException e) {}
return this.EVAL_PAGE;
}
}
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