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POImplement pagination in JSP page in a Spring MVC and Hibernate application
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  1. POImplement pagination in JSP page in a Spring MVC and Hibernate application
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    copied!<p>I am trying to implement pagination in my JSP page. I am using Spring MVC and Hibernate. The java code part is okay but I am having difficulties implementing it in my JSP page. I am using twitter bootstrap.</p> <p>Here is what I did until now:</p> <pre><code>&lt;div class="container"&gt; &lt;table class="table table-hover"&gt; &lt;th&gt;First Name&lt;/th&gt; &lt;th&gt;Last Name&lt;/th&gt; &lt;th&gt;Age&lt;/th&gt; &lt;c:forEach items="${employees}" var="emp"&gt; &lt;tr&gt; &lt;td&gt;${emp.firstName}&lt;/td&gt; &lt;td&gt;${emp.lastName}&lt;/td&gt; &lt;td&gt;${emp.Age}&lt;/td&gt; &lt;/tr&gt; &lt;/c:forEach&gt; &lt;/table&gt; &lt;div class="pagination"&gt; &lt;ul&gt; &lt;li class="disabled"&gt;&lt;a href="#"&gt;First&lt;/a&gt;&lt;/li&gt; &lt;li class="disabled"&gt;&lt;a href="#"&gt;Prev&lt;/a&gt;&lt;/li&gt; &lt;li class="active"&gt;&lt;a href="#"&gt;1&lt;/a&gt;&lt;/li&gt; &lt;li class="active"&gt;&lt;a href="#"&gt;2&lt;/a&gt;&lt;/li&gt; &lt;li class="active"&gt;&lt;a href="#"&gt;3&lt;/a&gt;&lt;/li&gt; &lt;li class="active"&gt;&lt;a href="#"&gt;4&lt;/a&gt;&lt;/li&gt; &lt;li class="active"&gt;&lt;a href="#"&gt;5&lt;/a&gt;&lt;/li&gt; &lt;li class="active"&gt;&lt;a href="#"&gt;Next&lt;/a&gt;&lt;/li&gt; &lt;li class="active"&gt;&lt;a href="#"&gt;Last&lt;/a&gt;&lt;/li&gt; &lt;/ul&gt; &lt;/div&gt; &lt;/div&gt; </code></pre> <p>This is the related code in my controller:</p> <pre><code>@RequestMapping(value = "/list", method = RequestMethod.GET) public String getEmployees(ModelMap model) { **//I believe I should get the page number from the JSP here but how?** model.addAttribute("employees", this.employeeService.getEmployees(page)); return "listing"; } </code></pre> <p>This is the related code in my Service class:</p> <pre><code>public List&lt;Employee&gt; getEmployees(int page) { return employeeDao.getEmployeeList(page); } </code></pre> <p>This is the related code in my DAO class:</p> <pre><code>private static final int limitResultsPerPage = 3; public List&lt;Employee&gt; getEmployeeList(int page) { Query q = sessionFactory.getCurrentSession().createQuery( "from Employee"); q.setFirstResult(page * limitResultsPerPage); q.setMaxResults(limitResultsPerPage); return (List&lt;Employee&gt;) q.list(); } </code></pre> <p>The page where I am displaying that table is list.jsp</p> <p>Here are my assumptions of what I should do but dont know how (please correct me if I am taking the wrong way):</p> <p>Modify my link that point to list.jsp in my menu, to list.jsp?page=0, so everytime the user clicks on the link, he will arrive in the first page.</p> <p>When the user clicks one of the button, I need to pass the page number to my controller so I can manage to return the right "employees" with my query.</p> <p>As you can see, the First and Previous buttons are deactivated as I am currently on the first page. So my question is, how should I handle the activation/deactivation of those buttons, as well as the Next and Last ones?</p> <p>Also, how to "refresh" the numbers on the list? For example, if the user is at the page 20, I won't display buttons from 1 to 19?</p>
 

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