我想尝试一下jsf的primefaces库,看看它是否适合我在仪表板和图表创建方面的需求。我尝试在线图中设置带有一些假数据的仪表板,以评估其行为:
<div style="height:500px">
<p:growl id="msgs" showDetail="true" />
<p:dashboard id="board" model="#{dashboardManagedBean.model}">
<p:ajax event="reorder" listener="#{dashboardManagedBean.handleReorder}" update="msgs" />
<p:panel width="100%" id="Finance" header="Finance" closable="true" toggleable="true">
<p:chart type="line" model="#{dashboardManagedBean.chartModel}" style="height:500px;"/>
</p:panel>
</p:dashboard>
</div>
这是仪表板bean:
package com.journaldev.primefaces.beans;
import java.util.Date;
import javax.faces.application.FacesMessage;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.SessionScoped;
import javax.faces.context.FacesContext;
import org.primefaces.event.DashboardReorderEvent;
import org.primefaces.model.DashboardColumn;
import org.primefaces.model.DashboardModel;
import org.primefaces.model.DefaultDashboardColumn;
import org.primefaces.model.DefaultDashboardModel;
import org.primefaces.model.chart.*;
@ManagedBean
@SessionScoped
public class DashboardManagedBean {
private DashboardModel model;
private LineChartModel chartModel;
public DashboardManagedBean() {
// Initialize the dashboard model
this.model = new DefaultDashboardModel();
DashboardColumn column2 = new DefaultDashboardColumn();
column2.addWidget("Finance");
this.model.addColumn(column2);
chartModel = new LineChartModel();
chartModel.setTitle("Linear Chart");
chartModel.setLegendPosition("e");
chartModel.setZoom(true);
LineChartSeries series1 = new LineChartSeries();
series1.setLabel("Series 1");
chartModel.addSeries(series1);
Date date = new Date();
double y = 0;
for (int i=0;i<1000;i++){
series1.set(date.getTime() + 1000*i,y);
y+=Math.random();
}
DateAxis axis = new DateAxis("Dates");
axis.setTickAngle(-50);
axis.setTickFormat("%d.%m.%y %H:%#M:%S");
axis.setMin("09.09.18 17:38:00");
axis.setMax("09.09.18 18:00:00");
axis.setTickCount(12);
chartModel.getAxes().put(AxisType.X, axis);
}
public DashboardModel getModel() {
return model;
}
public LineChartModel getChartModel() {
return chartModel;
}
public void setModel(DashboardModel model) {
this.model = model;
}
}
我得到的结果看起来大多不错。当我尝试放大图表时,问题就开始出现了,然后它真的被磨损了: Zoomed Chart
所以我对质数图有多个担忧:
感谢您提供绝对的primefaces新手。