JSF2, PrimeFaces, and Highcharts - Ajax
Has anybody used JSF2, PrimeFaces, and Highcharts together? I am really confused on how I should put all these together, specially regarding the ajax request to get the data from the server to feed into Highcharts on the view to update the chart.
What I have right now is a servlet that handles the Ajax request, which is sent using JQuery.ajax() method and use JQuery to update the chart with the new data received as JSON object. And I am using GSon.toJSon to convert Java object into JSON object.
What I am trying to achieve here is that I want to replace that servlet with the JSF2. Instead o开发者_Go百科f using a different servlet, I want to use JSF and have some backing bean to prepare and send the JSON object to the client.
Anybody?
In the example below the the p:commandButton starts the ajax request. The JSON object you want to use can be stored in the h:inputHidden field. When the p:commandButton completes the javascript function is called to update the chart. The javascript function will be able to access the JSON object from the h:inputHidden field.
xhtml
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:p="http://primefaces.prime.com.tr/ui">
<h:head>
<script type="text/javascript">
function dosomething() {
var value = jQuery("#beanvalue").attr('value');
alert(value);
}
</script>
</h:head>
<h:body>
<h:form prependId="false" >
<p:commandButton value="update" action="#{testBean.update}" update="beanvalue" oncomplete="dosomething();" />
<h:inputHidden value="#{testBean.output}" id="beanvalue" />
</h:form>
</h:body>
</html>
Bean
import javax.faces.bean.ManagedBean;
import javax.faces.bean.ViewScoped;
@ManagedBean
@ViewScoped
public class TestBean {
private String output;
public TestBean() {
output = "1";
}
public void update() {
output += "1";
}
public String getOutput() {
return output;
}
public void setOutput(String output) {
this.output = output;
}
}
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