使用Struts2标签遍历集合

使⽤Struts2标签遍历集合
Student.java
package action;
public class Student {
private Long sid;
private String name;
public Student() {
// TODO Auto-generated constructor stub
}
public Student(Long sid,String name) {
this.sid=sid;
=name;
}
public Long getSid() {
return sid;
}
public void setSid(Long sid) {
this.sid = sid;
}
public String getName() {
return name;
}
public void setName(String name) {
= name;
}
}
ClassHelloAction.java
package action;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;public class ClassHelloAction extends AbstractAjaxAction {
private String message;
private List<String> names;
private List<Student> stus;
private Map<String, Object> map;
private Map<String,List<Student>> stuMaps;
private List<Map<String,Student>> listMap;
public List<Map<String, Student>> getListMap() {
return listMap;
}
public void setListMap(List<Map<String, Student>> listMap) {
this.listMap = listMap;
}
public Map<String, List<Student>> getStuMaps() {
return stuMaps;
}
public void setStuMaps(Map<String, List<Student>> stuMaps) {
this.stuMaps = stuMaps;
}
public List<Student> getStus() {
return stus;
}
public Map<String, Object> getMap() {
return map;
}
public void setMap(Map<String, Object> map) {
this.map = map;
}
public void setStus(List<Student> stus) {
this.stus = stus;
}
public List<String> getNames() {
return names;
}
public void setNames(List<String> names) {
s = names;
}
public String getMessage() {
return message;
}
public void setMessage(String message) {
this.message = message;
}
public String execute() throws Exception {
this.stuMaps=new HashMap<String, List<Student>>();
List<Student> list1=new ArrayList<Student>();
list1.add(new Student(1L,"aa"));
list1.add(new Student(2L,"bb"));
list1.add(new Student(3L,"cc"));
list1.add(new Student(4L,"dd"));
List<Student> list2=new ArrayList<Student>();
list2.add(new Student(1L,"qq"));
list2.add(new Student(2L,"ww"));
list2.add(new Student(3L,"ee"));
list2.add(new Student(4L,"rr"));
//List<Student>
stus=new ArrayList<Student>();
stus.addAll(list1);
stus.addAll(list2);
//Map<String,Object>
this.map=new HashMap<String, Object>();
map.put("1", "⼴州");
map.put("2", "珠海");
map.put("3", "东莞");
map.put("4", "佛⼭");
//Map<string,List<Student>>
stuMaps.put("⼀班", list1);
stuMaps.put("⼆班", list2);
//List<Map<String,Student>>
this.listMap=new ArrayList<Map<String,Student>>();
Map<String,Student> map1=new HashMap<String, Student>(); map1.put("1号", new Student(1L,"鸣⼈"));
map1.put("2号", new Student(2L,"佐助"));
Map<String,Student> map2=new HashMap<String, Student>(); map1.put("3号", new Student(3L,"路飞"));
map1.put("4号", new Student(4L,"索隆"));
listMap.add(map1);
listMap.add(map2);
return "success";
}
}
1、遍历Map<String,Object>
<div style="float: left; border:thin solid;" >
<p>遍历Map&lt;String,Objecg&gt;</p>
<ul>
<s:iterator value="map" id="id">
<li><s:property value="#id.key" />:<s:property
value="#id.value" /></li>
</s:iterator>
</ul>
</div>
2、遍历Map<String,List<Student>>
<div style="float: left;border: thin solid;">
<p>遍历Map&lt;String,List&lt;Student&gt;&gt;</p>
<ul>
<s:iterator value="stuMaps" id="id" status="st">
<li><s:property value="#id.key" />: <s:select list="#id.value" id="stu" listKey="sid" listValue="name"></s:select></li> </s:iterator>
</ul>
</div>
3、遍历List<Map<String,Student>>
<div style="float: left;border:thin solid;">
<p>遍历List&lt;Map&lt;String,Student&gt;&gt;</p>
<ul>
<s:iterator value="listMap" id="map" status="st">
<s:iterator value="#map" id="mk" status="sa">
<li><s:property value="#mk.key" />:<s:property
value="#" /></li>
</s:iterator>
</s:iterator>
</ul>
</div>
4、index.jsp页⾯效果：。