Struts2 struts標簽介紹

Struts2 struts標簽介紹

1.index.jsp

 

訪問屬性 tags
2.struts.xml

 

 

 
 
 
 
 	
 		/tags.jsp
 	 
 

3.tags.jsp

 

 

1. property:
2. property 取值為字符串:
3. property 設定默認值:
4. property 設定為HTML:

   ---

5. set 設定adminName值（默認為request和ActionContext）：
6. set 從request取值：
7. set 從ActionContext取值：
8. set 設定范圍：
9. 從相應的范圍取值：<%=pagecontext.getattribute("adminpassword")%>
10. set 設定var,范圍為ActionContext:
11. 使用#取值:

    ---

12. bean 定義bean，並使用param來設定新的屬性值；
13. bean查看debug情況：

    ---

14. include include1.html 包含靜態英文文件
15. include include2.html 包含靜態中文文件
16. include include1.html 包含靜態英文文件，說明%用法

    ---

17. ---

18. if elseif else: age=
    wrong age! too young! yeah!
    null

    ---

19. 遍歷集合：
    
20. 自定義變量：
    
21. 使用status:
    | 遍歷過得元素總數：| 遍歷過得元素索引：| 當前是偶數?：| 當前是奇數?：| 是第一個元素嗎？：| 是最後一個元素嗎？：


22. |


23. |
    

<%=pagecontext.getattribute("adminpassword")%>4.TagsAction.java

 

 

package com.wxh.action;

import com.opensymphony.xwork2.ActionSupport;

public class TagsAction extends ActionSupport{
	private String password;
	private String username;
	public TagsAction(){
		
	}
	public String execute(){
		this.addFieldError("fielderror.test","wrong!");
		return SUCCESS;
	}
	
	public String getPassword() {
		return password;
	}
	public void setPassword(String password) {
		this.password = password;
	}
	public String getUsername() {
		return username;
	}
	public void setUsername(String username) {
		this.username = username;
	}
}

 

 

5.Dog.java

 

package com.wxh.action;

public class Dog {
	public Dog(){
		
	}
	public Dog(String anme){
		super();
		this.name=name;
	}
	private String name;

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}
	public String toString(){
		return "dog:"+name;
	}

}

 

 

6.S.java

 

package com.wxh.action;

public class S {
	public static String STR="STATIC STRING";
	
	public static String s(){
		return "static method";
	}
}

7.User.java

 

 

package com.wxh.action;

public class User {	
	private int age;
	
	public User(){
		System.out.println("user.constructor!");
	}
	public User(int age){
		super();
		this.age=age;
	}
	
	public int getAge() {
		return age;
	}
	public void setAge(int age) {
		this.age = age;
	}
	public String toString(){
		return "user"+age;
	}

}

8.include1.html

 

 

include1.html
9.include2.html

 

 

中文