1.首先编写类,注意:类里面的变量与方法必须是static的; 如:
Java代码
public class TestFunction {
private static ProductInfoManager productInfoManager = (ProductInfoManager) Platform.getInstance().getBean("productInfoManager");
public static List getLastDataByType(int type, int lastSize) {
return productInfoManager.getLastDataByType(type, lastSize);
}
public static Boolean isLogin() {
Customer customer = (Customer) ServletActionContext.getRequest().getSession().getAttribute(SessionUser.Customer_Session_User_Key);
if (null == customer) {
return false;
}
return true;
}
2.定义dtd文件; 如:
Java代码 <?xml version="1.0" encoding="UTF-8" ?>
<taglib xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-jsptaglibrary_2_0.xsd"
version="2.0">
<tlib-version>1.0</tlib-version>
<short-name>my</short-name>
<uri>http://www.myproject.com/my/functions</uri>
<function>
<name>getLastDataByType</name>
<function-class>com.myproject.app.util.TestFunction</function-class>
<function-signature>java.util.List getLastDataByType(int,int)</function-signature>
</function>
<function>
<name>isLogin</name>
<function-class>com.myproject.app.util.TestFunction</function-class>
<function-signature>boolean isLogin()</function-signature>
</function>
</taglib>
3.JSP引入; 如:
<%@ taglib uri="http://www.myproject.com/my/functions" prefix="my"%>
4.使用; 如:${my:isLogin()};
${my:getLastDataByType(2,5)}
责任编辑：小草
