iteratetag.java

来自「Begining JSP Web Development外文书籍源代码」· Java 代码 · 共 28 行

package com.wrox.ch10;

import javax.servlet.jsp.*;
import javax.servlet.jsp.tagext.*;

public class iterateTag extends TagSupport{
  private int arrayCount = 0;
  private String[] strings = null;

  public int doStartTag(){
    strings = (String[]) pageContext.getAttribute("strings");
    return EVAL_BODY_INCLUDE;
  }

  public int doAfterBody() throws JspException{
    try{
      pageContext.getOut().print(" " + strings[arrayCount] + "<BR>");
    } catch(Exception e){
      throw new JspException(e.toString());
    }
    arrayCount++;
    if(arrayCount >= strings.length) {
      return SKIP_BODY;
    }
    return EVAL_BODY_AGAIN;
  }
}