<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE taglib PUBLIC "-//Sun Microsystems, Inc.//DTD JSP Tag Library 1.1//EN" "http://java.sun.com/j2ee/dtds/web-jsptaglibrary_1_1.dtd"> <!-- a tag library descriptor --> <taglib> <tlibversion>1.0</tlibversion> <jspversion>1.1</jspversion> <shortname>domaindata</shortname> <uri /> <info>access contro</info> <tag> <name>domaindataField</name> <tagclass>com.best1.wms.webapp.tag.DaomaindataTag</tagclass> <attribute> <name>parentcode</name> <required>true</required> <rtexprvalue>true</rtexprvalue> <!-- 代表可直接指定或计算获得 --> </attribute> <attribute> <name>code</name> <required>true</required> </attribute> </tag> </taglib>
2.编辑解析xml文件的java文件
package com.best1.wms.webapp.tag; import java.io.IOException; import javax.servlet.jsp.JspException; import javax.servlet.jsp.JspTagException; import javax.servlet.jsp.tagext.BodyTagSupport; import com.best1.wms.common.exception.DaoException; import com.best1.wms.common.exception.ServiceException; import com.best1.wms.webapp.utils.LableUtil; public class DaomaindataTag extends BodyTagSupport{ private String parentcode; private String code; public String getParentcode() { return parentcode; } public void setParentcode(String parentcode) { this.parentcode = parentcode; } public String getCode() { return code; } public void setCode(String code) { this.code = code; } private static final long serialVersionUID = 1L; @Override public int doStartTag() throws JspException { return EVAL_BODY_AGAIN; } @Override public int doEndTag() throws JspException { try { try { // pageContext.getOut().write(LableUtil.getcsLable(parentcode, code)); pageContext.getOut().write(LableUtil.getDomaindataLable(parentcode, code)); //查询数据库获取值 } catch (ServiceException e) { e.printStackTrace(); } catch (DaoException e) { e.printStackTrace(); } } catch (IOException e) { throw new JspTagException("错误"); } return EVAL_PAGE; } }
3.web.xml引入自定义的标签库
<jsp-config> <taglib> <taglib-uri>/tld/domaindataTag</taglib-uri> <taglib-location>/WEB-INF/tld/domaindataTag.tld</taglib-location> </taglib> </jsp-config>
4.jsp页面引用
<%@ taglib prefix="dom" uri="/tld/domaindataTag" %> <dd:domaindataField parentcode="5029" code="5599"></dd:domaindataField>