input the value value -related issues , seeking god help

jsp page is part of the code









datalist5 is a collection of
traverse the collection of the value in the input value is the value of the collection

value = "$ {SHOOTING_CONTENT}" This does not understand

seek expert advice
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I have this is the iterator struts2 , struts is OGNL expressions can be used individual cognitive range $ {SHOOTING_CONTENT} feeling EL labels, then the $ {SHOOTING_CONTENT} is how it was.   
  
I was watching someone else's code, do not understand.  
$ {SHOOTING_CONTENT} This is the EL ah
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value = "$ {SHOOTING_CONTENT}" this is the object that represents the current iteration to the value of the property in SHOOTING_CONTENT ah. Does the landlord and struts2 tag you learned EL
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I'd have guessed this , but I did not struts2 and in EL values ​​over how the ( level difference , not seen )

can explain to me under it ?

Thank you very much !

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Baidu is not a bunch of it down . . Need to explain what
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struts2 tags can not be used el , the landlord is a common input element with el is possible. Iterative like this can also be used
value = ""
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I was this the iterator struts2 , struts are using OGNL expressions , personal cognitive range $ {SHOOTING_CONTENT} feeling EL labels, then the $ {SHOOTING_CONTENT} is how it was.

I was watching someone else's code, do not understand.
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I asked the question are the first Baidu , do not come back in the past.

If you will , please help look it , thank you !
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I have this is the iterator struts2 , struts are using OGNL expressions , personal cognitive range $ {SHOOTING_CONTENT} feeling EL labels, then the $ {SHOOTING_CONTENT} is how it was.     
    
I was watching someone else's code, do not understand.          
$ {SHOOTING_CONTENT} This is the EL ah  

Well, then thank you ! I look back .