Java three-step online generation of graphical reports-maven-jfreechat

This blog uses Jfreechat to generate graphical reports directly.

First the MAVEN project needs to ingest the package.

<dependency>

    <groupId>org.jfree</groupId>    <artifactId>jfreechart</artifactId>    <version >1.0.19</version>    </dependency>

Then in the Web. XML configuration:

   <servlet>       <servlet-name>displayChart</servlet-name>       <servlet-class> org.jfree.chart.servlet.displaychart</servlet-class>   </servlet>   <servlet-mapping>       <servlet-name>displayChart</servlet-name>       <url-pattern>/displaychart</ Url-pattern>   </servlet-mapping>

Finally, create a new JSP file;

<% @page import= "Java.util.Set"%><% @page import= "Java.awt.Font"%><% @page import= " Org.jfree.chart.StandardChartTheme "%><% @page import=" Java.awt.Color "%><% @page import=" Org.jfree.chart.servlet.ServletUtilities "%><% @page import=" Java.text.SimpleDateFormat "%><% @page Import= "Org.jfree.chart.axis.DateAxis"%><% @page import= "Org.jfree.chart.ChartFactory"%><% @page Import= "Org.jfree.chart.JFreeChart"%><% @page import= "Org.jfree.data.time.Month"%><% @page import= " Org.jfree.data.time.TimeSeriesCollection "%><% @page import=" org.jfree.data.time.TimeSeries "%><% @page Contenttype= "text/html; Charset=utf-8 "pageencoding=" UTF-8 "%>
Generated pictures:


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Java three-step online generation of graphical reports-maven-jfreechat