我在 eclipse 下收到以下警告:
WARNING: JSF1091: No mime type could be found for file dynamiccontent. To resolve this, add a mime-type mapping to the applications web.xml
此错误是我发布图片时引起的
低于 primefaces 组合物:
<p:graphicImage value="#{bean.image}"/>
Java 豆:
private StreamedContent image;
// Getter
public StreamedContent getImage() {
try {
JFreeChart jfreechart = ChartFactory.createPieChart3D("",
createDataset(), true, true, false);
PiePlot3D plot = (PiePlot3D) jfreechart.getPlot();
File chartFile = new File("dynamichart");
ChartUtilities.saveChartAsPNG(chartFile, jfreechart, 375, 300);
chartImage = new DefaultStreamedContent(new FileInputStream(
chartFile), "image/png");
return chartImage;
} catch (Exception e) {
e.printStackTrace();
return new DefaultStreamedContent();
}
}
// generate data for image
public static PieDataset createDataset() {
DefaultPieDataset dataset = new DefaultPieDataset();
dataset.setValue("A",10);
dataset.setValue("B", 11);
dataset.setValue("C", 80);
dataset.setValue("D", 12);
return dataset;
}