關於struts2的各種標簽的使用，網上資料還是很多的，但是唯獨這個number標簽，資料很少。不知道是不是因為太簡單，沒人樂意寫。我覺得這個東西還是很有用的，寫幾句。
標簽定義文件：struts-tags.tld在struts2-core-x.x.x.jar 這個包下面，摘抄以下定義出來：
number org.apache.struts2.views.jsp.NumberTag empty currency false false groupingUsed false false id false false maximumFractionDigits false false maximumIntegerDigits false false minimumFractionDigits false false minimumIntegerDigits false false name true false parseIntegerOnly false false roundingMode false false type false false var false false false
寫個例子，一看就清楚了：
Action類：
package test.action;
import java.util.ArrayList;
import java.util.List;
import test.model.User;
import com.opensymphony.xwork2.ActionSupport;
public class TestAction extends ActionSupport {
private static final long serialVersionUID = 2752911709036089235L;
private int num;
private List userList;
public String testNumber(){
num = 56466126;
userList = new ArrayList();
userList.add(new User("Mike",4546645));
userList.add(new User("Sam",2389469));
userList.add(new User("Keven",8923741));
return SUCCESS;
}
//getter and setter
public int getNum() {
return num;
}
public void setNum(int num) {
this.num = num;
}
public List getUserList() {
return userList;
}
public void setUserList(List userList) {
this.userList = userList;
}
}
User.java
package test.model;
public class User {
private String name;
private int salary;
public User(){}
public User(String name,int salary){
this.name = name;
this.salary = salary;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getSalary() {
return salary;
}
public void setSalary(int salary) {
this.salary = salary;
}
}
