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package servletPackage;
import java.io.IOException;
import javax.servlet.jsp.tagext.*;
import javax.servlet.jsp.*;
public class HelloTag implements Tag {
//¶¨ÒåÒ³ÃæµÄÉÏÏÂÎÄ
private PageContext context = null ;
//ʵÏÖtag½Ó¿Ú
public void setPageContext(PageContext pageContext){
this.context = pageContext ;
}
//ʵÏÖTag½Ó¿Ú
public void setParent(Tag tag){
}
public Tag getParent(){
return null ;
}
//ʵÏÖTag ½Ó¿Ú£¬²¢Ö´ÐÐ±í¼¯Ìå
public int doStartTag(){
try {
context.getOut().print("Hello from Tag") ;
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return SKIP_BODY ;
}
public HelloTag() {
super();
}
public int doEndTag() throws JspException {
// TODO Auto-generated method stub
return SKIP_PAGE;
}
public void release() {
// TODO Auto-generated method stub
}
}
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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE taglib
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package debug;
import java.io.*;
import java.lang.Thread;
class MyThread extends Thread{
public int x = 0;
public void run(){
System.out.println(++x);
}
}
class R implements Runnable{ ......