Struts_logic标签之二 iterate

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show.jsp

<%@ taglib prefix="bean" uri="/WEB-INF/struts-bean.tld"%><%@ page language="java" import="java.util.*" pageEncoding="GB18030"%><%@page import="entity.User"%><%@ taglib prefix="logic" uri="/WEB-INF/struts-logic.tld"%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><title>struts_logic</title></head><body><h1>测试 Iterate</h1><table border="1"><tr><td>姓名</td><td>年龄</td></tr><%List<User> userlist = (List<User>) request.getAttribute("userlist");if (userlist == null || userlist.size() == 0) {%><tr><td colspan="2">没有符合的数据!</td></tr><%} else {for (Iterator iter = userlist.iterator(); iter.hasNext();) {User user = (User) iter.next();%><tr><td><%=user.getUsername()%></td><td><%=user.getAge()%></td><%}}%></table><p><li>标签 iterate</li><table><tr><td>姓名</td><td>年龄</td></tr><logic:empty name="userlist"><tr><td colspan="2">没有合适的数据!</td></tr></logic:empty><logic:notEmpty name="userlist"><logic:iterate id="user" name="userlist"><tr><td><bean:write name="user" property="username" /></td><td><bean:write name="user" property="age" /></td></tr></logic:iterate></logic:notEmpty></table></body></html>

IterateTestAction.java

package web.action;import java.util.ArrayList;import java.util.List;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import org.apache.struts.action.Action;import org.apache.struts.action.ActionForm;import org.apache.struts.action.ActionForward;import org.apache.struts.action.ActionMapping;import entity.User;/** * 测试 Iterate */public class IterateTestAction extends Action {public ActionForward execute(ActionMapping mapping, ActionForm form,HttpServletRequest request, HttpServletResponse response)throws Exception {List<User> userlist = new ArrayList<User>();for (int i = 0; i < 10; i++) {User user=new User();user.setUsername("user "+i);user.setAge(18+i);userlist.add(user);}request.setAttribute("userlist", userlist);return new ActionForward("/show.jsp");}}

User.java

package entity;public class User {private String username;private int age;public String getUsername() {return username;}public void setUsername(String username) {this.username = username;}public int getAge() {return age;}public void setAge(int age) {this.age = age;}}

配置文件

struts-config.xml

<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 1.2//EN" "http://struts.apache.org/dtds/struts-config_1_2.dtd"><struts-config><data-sources /><form-beans /><global-exceptions /><global-forwards /><action-mappings><action path="/show" type="web.action.IterateTestAction"></action></action-mappings><message-resources parameter="web.ApplicationResources" /></struts-config>

index.jsp

<%@ taglib prefix="struts-logic" uri="/WEB-INF/struts-logic.tld" %><%@ page language="java" import="java.util.*" pageEncoding="GB18030"%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html> <head> <title>struts_logic</title> </head> <body> <a href="show.do" mce_href="show.do">show.jsp </a> </body></html>

效果图:

Struts_logic标签 之二 iterate

Struts_logic标签之二 iterate