package io.github.ihongs.jsp; import io.github.ihongs.Core; import javax.servlet.jsp.JspWriter; import javax.servlet.jsp.JspException; import javax.servlet.jsp.tagext.JspFragment; import javax.servlet.jsp.tagext.SimpleTagSupport; /** * 唯一ID生成器 * * <h3>使用方法:</h3> * <pre> * <hs:nuid [sid="SID"]/> * </pre> * * @author Hongs */ public class NuidTag extends SimpleTagSupport { private String sid = null; @Override public void doTag() throws JspException { JspWriter out = getJspContext().getOut(); String uid; if (this.sid != null) { uid = Core.newIdentity(this.sid); } else { uid = Core.newIdentity(); } try { out.print(uid); JspFragment f = getJspBody(); if (f != null) f.invoke(out); } catch (java.io.IOException ex) { throw new JspException("Error in NuidTag", ex); } } public void setSid(String sid) { this.sid = sid; } }