jsp自定义标签

<--自定义标签.tld文件-->

<?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-jsptaglib_1_1.dtd">

<taglib>
	<tlibversion>1.0</tlibversion>
	<jspversion>1.1</jspversion>
	<shortname>Tag for Travel Server</shortname>
	<info>
		The tag library of Travel Server
   	</info>
	<tag>
		<name>idName</name>
		<tagclass>com.chinapay.travelconsole.tools.tag.IdNameTag</tagclass>
		<bodycontent>JSP</bodycontent>
		<info>idName tag</info>
		<attribute>
			<name>id</name>
			<required>true</required>
			<rtexprvalue>true</rtexprvalue>
		</attribute>
		<attribute>
			<name>type</name>
			<required>true</required>
			<rtexprvalue>true</rtexprvalue>
		</attribute>
	</tag>

</taglib>
 
 
 
<--.xml文件配置-->
<taglib>
	<taglib-uri>/tags/travelCommon</taglib-uri>
	<taglib-location>/WEB-INF/tld/travel-common.tld</taglib-location>
</taglib>
 
 
 
 
<---com.chinapay.travelconsole.tools.tag.IdNameTag java类-->
 
public class IdNameTag extends TagSupport {
 private static final long serialVersionUID = -6270472760008331633L;
 /**

  * 数据ID。根据此id获取name

  */

 private String id;
 /**

  * 获取的数据源。对应的类。

  */

 private String type;
 public void setId(String id) {

  this.id = id;

 }
 public void setType(String type) {

  this.type = type;

 }
 public int doStartTag() throws JspException {

  try {

   pageContext.getOut().write(getTagBody());

   return SKIP_BODY;

  } catch (IOException ioe) {

   throw new JspException(ioe.getMessage());

  }

 }
 public int doEndTag() throws JspException {

  return EVAL_PAGE;

 }
 private String getTagBody() throws JspException {

  String name = "";

  if (IdType.AGENT_CONFIG.equals(type)) {

   AgentConfigBean bean = AgentConfigDAO.getAgentConfigBean(id);

   if (bean != null) {

    name = bean.getName();

   }

  } else if (IdType.AIRPORT_CODE.equals(type)) {

   AirportcodeBean bean = AirportcodeDAO.getAirportcodeBean(id);

   if (bean != null) {

    name = bean.getAirportZhShort();

   }

  } else if (IdType.CITYS.equals(type)) {

   AirportcodeBean bean = AirportcodeDAO.getAirportcodeBean(id);

   if (bean != null) {

    String belongtocity = bean.getBelongtocity();

    CitysBean citysbean = CitysDAO.getCitysBean(belongtocity);

    if (citysbean != null) {

     name = citysbean.getCitynameZh();

    }

   }

  } else if (IdType.NATION.equals(type)) {

   NationBean bean = NationDAO.getNationBean(id);

   if (bean != null) {

    name = bean.getNameZh();

   }

  } else if (IdType.GBPROV.equals(type)) {

   GbProvDAO provdao = new GbProvDAO();

   name = provdao.getProvName(id);

  } else if (IdType.GBCITY.equals(type)) {

   GbCityDAO citydao = new GbCityDAO();

   String[] code = toCode(id);

   name = citydao.getCityName(code[0], code[1]);

  } else if (IdType.GBDIST.equals(type)) {

   GbDistDAO distdao = new GbDistDAO();

   String[] code = toCode(id);

   name = distdao.getDistName(code[0], code[1], code[2]);

  } else if (IdType.AGENT.equals(type)) {

   if ("HuiTongKeService".equals(id)) {

    name = "汇通客";

   }

  } else if (IdType.BRAND.equals(type)) {

   HotelBrandDAO dao = new HotelBrandDAO();

   name = dao.getHotelBrandName(id);

  } else if (IdType.HOTEL_NAME.equals(type)) {

   name = HotelDAO.getHotelName(id);

  }

  return name;

 }
 public static String[] toCode(String key) {

  if (StringUtils.isNotEmpty(key)) {

   String[] code = key.split("\\|");

   return code;

  }

  return null;

 }
 public static String tokey(String provCode, String cityCode) {

  StringBuffer key = new StringBuffer();

  if (StringUtils.isNotEmpty(provCode)) {

   key.append(provCode);

  } else {

   key.append("null");

  }

  if (StringUtils.isNotEmpty(cityCode)) {

   key.append("|").append(cityCode);

  } else {

   key.append("|").append("null");

  }

  return key.toString();

 }
 public static String tokey(String provCode, String cityCode, String distCode) {

  StringBuffer key = new StringBuffer();

  if (StringUtils.isNotEmpty(provCode)) {

   key.append(provCode);

  } else {

   key.append("|").append("null");

  }

  if (StringUtils.isNotEmpty(cityCode)) {

   key.append("|").append(cityCode);

  } else {

   key.append("|").append("null");

  }

  if (StringUtils.isNotEmpty(distCode)) {

   key.append("|").append(distCode);

  } else {

   key.append("|").append("null");

  }

  return key.toString();

 }

}
 
public final class IdType {
 /** 代理商 */

 public final static String AGENT_CONFIG = "0";

 /** 机场 */

 public final static String AIRPORT_CODE = "1";

 /** 城市名称 */

 public final static String CITYS = "2";

 /** 国籍名称 */

 public final static String NATION = "3";

 /** 省份 **/

 public final static String GBPROV = "4";

 /** 城市 **/

 public final static String GBCITY = "5";

 /** 区县 **/

 public final static String GBDIST = "6";

 /** 代理商 **/

 public final static String AGENT = "7";

 /** 所属品牌 **/

 public final static String BRAND = "8";

 /** 酒店名称 **/

 public final static String HOTEL_NAME = "9";

}