Struts2_接收参数

　　1.1
        直接创建接收的数据类型

 1         public class HelloAction extends ActionSupport {

 2     

 3             private String name;

 4             private int age;

 5             

 6             public String add(){

 7                 System.out.println("name="+name);

 8                 System.out.println("age="+age);

 9                 return SUCCESS;

10             }

11 

12             public String getName() {

13                 return name;

14             }

15 

16             public void setName(String name) {        //服务器自动调用

17                 this.name = name;

18             }

19 

20             public int getAge() {

21                 return age;

22             }

23 

24             public void setAge(int age) {

25                 this.age = age;

26             }

27         }

 

        在URL中: http://localhost:8080/Struts2_0100_Introduction/HelloAction_add?name=a&age=123
    1.2
        创建一个User类, 放置接收的参数

 1             public class User {

 2                 private String name;

 3                 private int age;

 4                 public String getName() {

 5                     return name;

 6                 }

 7                 public void setName(String name) {

 8                     this.name = name;

 9                 }

10                 public int getAge() {

11                     return age;

12                 }

13                 public void setAge(int age) {

14                     this.age = age;

15                 }

16             }

 

            不需要自己new user类

 1             public class UserAction extends ActionSupport{

 2                 private User user;

 3                 

 4                 public String add(){

 5                     System.out.println("User is run.");

 6                     System.out.println("name="+ user.getName());

 7                     System.out.println("age="+user.getAge());

 8                     return SUCCESS;

 9                 }

10                 public User getUser() {

11                     return user;

12                 }

13                 public void setUser(User user) {

14                     System.out.println("setUser run");

15                     this.user = user;

16                 }

17             }

 

            在URL中: http://localhost:8080/Struts2_0100_Introduction/UserAction_add?user.name=a&user.age=123
    1.3
        基本不用
        创建一个User类, 放置接收的参数
            public class User {
            添加了implements ModelDriven<User>
            需要自己new User
          

 1  public class ModelUserAction extends ActionSupport implements ModelDriven<User>{

 2                 private User user = new User();

 3                 

 4                 public String add(){

 5                     System.out.println("ModelUser is run.");

 6                     System.out.println("name="+ user.getName());

 7                     System.out.println("age="+user.getAge());

 8                     return SUCCESS;

 9                 }

10 

11                 @Override

12                 public User getModel() {

13                     // TODO 自动生成的方法存根

14                     return user;

15                 }

16             }

 

        URL: http://localhost:8080/Struts2_0100_Introduction/ModelUser_add?name=a&age=123