On Apr 19, 6:15 am, Chris K <ckella...@gmail.com> wrote:
> I cannot get person.name.lastName or person.name.firstName to display
> in the table. I have combed the group and looked at many posts but
> for the life of me I cannot tell what the problem is.
>
> I started by copying HelloWeb
>
> resides in package org.apache.taglibs.standard.examples.beans;
> Person Class
> public class Person {
> private Name name;
This part below is rather strange for me:
> public Person(String firstName, String lastName) {
> Name name = new Name();
> name.setFirstname(firstName);
> name.setLastname(lastName);
> }
I would have written as it is done in HelloWeb:
public Person(Name name) {
init(name);
}
then
public void init(Name name) {
setName(name);
}
> public Name getName() {
> return name;
> }
> public void setName(Name name) {
> this.name = name;
> }
>
And incorporated here an overwritten version of the toString method
exactly as done in the original HelloWeb.
> }
>
> Name Class
> public class Name {
> private String firstName;
> private String lastName;
> public Name() {
> }
> public Name(String firstName, String lastName) {
> this.firstName = firstName;
> this.lastName = lastName;
> }
Here I would have used:
public Name(String firstName, String lastName) {
setFirstName(firstName);
setLastName(lastName);
}
to ensure that the accessors methods are always used.
> public String getFirstname() {
> return firstName;
> }
> public void setFirstname(String firstName) {
> this.firstName = firstName;
> }
> public String getLastname() {
> return lastName;
> }
> public void setLastname(String lastName) {
> this.lastName = lastName;
> }
Again an overwritten version of the toString method here.
>
> }
>
> Init
> // Person
> Person p1 = new Person("Chris", "Kellawan");
No, Person relies on Name to construct itself, so here:
Person p1 = new Person(new Name("Chris", "Kellawan");
> sce.getServletContext().setAttribute("person", p1);
>
> response.jsp
> <html>
> <head>
> <meta http-equiv="Content-Type" content="text/html;
> charset=UTF-8">
> <title>JSP Page</title>
> </head>
> <body>
> <h1>response.jsp Page</h1>
> <jsp:useBean id="mybean" scope="application"
> class="org.me.hello.NameHandler" />
> <jsp:setProperty name="mybean" property="*" />
> Hello, <jsp:getProperty name="mybean" property="name" />
> <br>
> <br>
Below you may simplify, (well if you have taken the time to write an
overriden version of the toString method), then you can get rid of the
table, and use a p tag just using the name attribute of person, no
need to getFirstName and getLastName. Unless you want to display a
collection of Persons separating the first name from the last name, in
which case you have also to write a Persons class, derived from the
Customers class in HelloWeb project, but that is not asked in the
homework.
> <%-- Exercise Expression Language --%>
> <table border="1">
> <tr>
> <td><c:out value="${person.name.getFirstName}"/></
> td>
> <td><c:out value="${person.name.getLastName}"/></
> td>
> </tr>
> </table>
> </body>
> </html>
>
> Any help would be greatly appreciated.
>
> Thanks
>
> Chris Kellawan
>
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