findbooksimpletag.java.txt

来自「<Java网络程序设计 J2EE>随书源码」· 文本 代码 · 共 29 行

package jsp2.examples.simpletag;

import javax.servlet.jsp.JspException;
import javax.servlet.jsp.tagext.SimpleTagSupport;
import java.util.HashMap;
import jsp2.examples.BookBean;

/**
 * SimpleTag handler that pretends to search for a book, and stores
 * the result in a scoped variable.
 */
public class FindBookSimpleTag extends SimpleTagSupport {
    private String var;
    
    private static final String BOOK_TITLE = "The Lord of the Rings";
    private static final String BOOK_AUTHOR = "J. R. R. Tolkein";
    private static final String BOOK_ISBN = "0618002251";

    public void doTag() throws JspException {
        BookBean book = new BookBean( BOOK_TITLE, BOOK_AUTHOR, BOOK_ISBN );
        getJspContext().setAttribute( this.var, book );
    }

    public void setVar( String var ) {
	this.var = var;
    }
}