doubt in Struts application

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posted 15 years ago

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Hi i'm new to struts.I'm just trying to create one application.

search.jsp
==========

<%@ taglib uri="WEB-INF/struts-html.tld" prefix="html" %>
<%@ taglib uri="WEB-INF/struts-bean.tld" prefix="bean"%>
<%@ taglib uri="WEB-INF/struts-logic.tld" prefix="logic"%>
<html>
    <head>
        <title>ABC, Inc Human Resource Portal</title>
    </head>
    <body>
        <font size="+1">Human Resource Portal - Employee Search</font><br>
        <hr width="100%">
        
        <html:errors/>
        <center>
        <html:form action="/search">
        <table>
            <tr>
                <td align="right"><bean:message key="label.search.name"/></td>
                <td><html:text property="name"/></td>
            </tr>
            <tr>
                <td> -- or -- </td>
            </tr>
            <tr>
                <td align="right"><bean:message key="label.search.ssNum"/></td>
                <td><html:text property="ssNum"/> (xxx-xx-xxxx) </td>
            </tr>
            <tr>
                <td></td>
                <td><html:submit/></td>
            </tr>
        </table>
        
        <logic :-P	 resent name="searchForm"property="results">
            <hr width="100%" size="1">
            <bean:size id="size" name="searchForm" property="results"/>
            
            <logic:equal name="size" value="0">
                <font color="red"><b>No Employee Found</b></font>
            </logic:equal>
            
            <logic:greaterThan name="size" value="0">
                <table border="1">
                    <tr>
                        <th>Name</th>
                        <th>SSN</th>
                    </tr>
                    <logic:iterate id="result" name="searchForm" property="results">
                        <tr>
                            <td><bean:write name="result" property="name"/></td>
                            <td><bean:write name="result" property="ssNum"/></td>
                        </tr>
                    </logic:iterate>
                </table>
            </logic:greaterThan>
        </logic :-P	 resent>
    </html:form>   
    </center>       
    </body>
</html>
 
SearchForm.java
===============
[CODE]
public class SearchForm extends ValidatorForm {
    private String name = null;
    private String ssNum = null;
    private List results = null;
    
    public void setName(String name){
        this.name = name;
    }
    public String getName(){
        return name;
    }
    
    public void setSsNum(String ssNum){
        this.ssNum = ssNum;
    }
    public String getSsNum(){
        return ssNum;
    }
 
    public void setResults(List results){
        this.results = results;
    }
    public List getResults(){
        return results;
    }

Can anyone please let me know how the setname and set ssnum as there is no call for setName() and setSsNum().

Can anyone please tell where it is being set?

Thanks in Advance.

[/CODE]

Jeanne Boyarsky

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posted 15 years ago

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Originally posted by Jay Shukla:
Can anyone please let me know how the setname and set ssnum as there is no call for setName() and setSsNum().

Can anyone please tell where it is being set?

Struts automatically calls setters for the form fields. So "name" calls "setName" and "ssNum" calls "setSsNum".

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Jay Shukla

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posted 15 years ago

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Hi Jeanne,

Thanks for your valuable reply!!!

But how struts will know that ssNum is being(will be) set setSsNum() method as it does not match with property name in JSP.

I mean to say is in .jsp property name is ssNum where as in SearchForm it is setSsNum().

Please help mein clearing above concept.

Thanks in Advance.

Anil Mundra

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posted 15 years ago

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hi,
as you wrote..............
I mean to say is in .jsp property name is ssNum where as in SearchForm it is setSsNum().

Here the concept is that the property name which is given in jsp file i.e. ssNum will be autometically retrived in bean class in the variable with same name.

Now I think you are confusing in it:-
In jsp property name ssNum
In Bean class variable name ssNum

Mean both are same

But the standard syntax of getters and setters is
setSsNum and getSsNum
Here we have to use the first letter as capital. So these above two method works for ssNum.

Now I think it is clear to you.........
Cheers

Jay Shukla

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posted 15 years ago

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Thanks a lot Anil!!!

Now i'm clear with the concept.

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