Struts2 basic -- tag, struts2 tag

Struts2 basic -- tag, struts2 tag

I. general labels

1. s: property (read the property value of the object in the value stack)

Attribute: value: Specifies the OGNL expression; default: Specifies the default value when the OGNL expression is returned as null. escape: Specifies whether to escape special HTML characters.

E1: Read the attribute values of objects in the object stack.

<s:property value="[1].userName"/>

E2: access the Map stack and read the attribute values of objects in the Session domain.

<s:property value="#session.sessionKey"/>

E3: access the Map stack and read the attribute values in the domain object through attr

<s:property value="#attr.requestAttrKey"/>

2. s: url

 

 

3. s: set

 

 

 

4. s: push

 

 

5. s: if, s: elseif, s: else

 

 

6.7 s: iterator

 

7.8 s: sort

 

8.9 s: date

 

9.10 s:

 

10.11 s: action

 

 

11.12 s: bean

 

 

12.13 s: include

 

 

 

 

13.14 s: append

 

 

 

14.15 s: merge

 

 

15.16 s: generator

 

16.17 s: subset

 

 

 

 

 

 

 

 

Ii. Form tags