Usage of struts2 checkbox value passing

Checkbox should be used for batch submission when writing data to the background. Baidu once found the relatedArticleVery few. After half a day, Zhang finally got it ready. Remember it first.

It should be noted that the checkbox value of HTML is not, S: checkbox

If multiple checkboxes with the same name are submitted, struts2 uses list to receive them.

 

Page:

 1   <  Form  Name  = "Checkform"  ID  = "Checkform"  Method  = "Post"  Action  = "/User/deleteusers"  > 2   3  <  Ul  >  4   5  <  Li  > <  Input  Type  = "Checkbox"  Name  = "Checkall"  ID  = "Checkall" Onclick  = "Selectallbox ()"  /> </  Li  >  6   7  <  Li  > <  Input  Type  = "Checkbox"  Name  = "Tags"  Value  = "1"  /> </  Li  >  8   9  <  Li  > <  Input  Type  = "Checkbox"  Name  = "Tags"  Value  = "2"   /> </  Li >  10   11  <  Li  > <  Input  Type  = "Checkbox"  Name  = "Tags"  Value  = "3"   /> </  Li  >  12  13  <  Li  > <  Input  Type  = "Checkbox"  Name  = "Tags"  Value  = "4"   /> </  Li  >  14   15  < Li  > <  Input  Type  = "Checkbox"  Name  = "Tags"  Value  = "5"   /> </  Li  >  16   17  <  Li  > < A  Href  = "Javascript: Document. getelementbyid ('checkform'). Submit ();"  > Submit </  A  > </  Li  >  18   19  </  Ul  >  20   21  </  Form  > 

 

Select All JS:

 1   Function  Selectallbox (){  2   3  VaR Checkall = Document. getelementbyid ("checkall" );  4   5  VaR Tags = Document. getelementbyname ("tags" ); 6   7        If (Checkall. Selected = True  ){  8   9  For ( Int I = 0; I <tags. length; I ++ ){  10   11 Tags [I]. Selected = True  ;  12  }  13 } Else  {  14   15  For ( Int J = 0; j <tags. length; j ++ ){  16   17 Tags [I]. Selected = False  ;  18   }  19  }  20   21 }

 

Struts. xml configuration:

 1   <  Package  Name  = "Userpk"  Namespace  = "/User"  Extends  = "Struts-Default"  >  2   3  <  Action  Name  = "Deleteusers"  Class  = "Com. txm. Action. useraction"  Method  = "Deleteusers"  >  4   5  <  Result  Name  = "Success"  > /Admin/Main. jsp</  Result  >  6  </  Action  >  7   8   </  Package  > 

 

Useraction:

 1   Private  List tags;  2  3   Public  String deleteusers (){  4   5 System. Out. println ("class --> useraction, Method --> deleteusers" );  6   7   System. Out. println (TAGS );  8   9  Return  Success;  10   11  }  12   13   Public   Void  Settags (list tags ){  14   15  This . Tags = Tags;  16   17   }  18   19   Public  List gettags (){ 20   21  Return   This  . Tags;  22   23 }