Export Report on Executing in JasperReports Server UI Via REST API

package com.scriptlet.export;

import net.sf.jasperreports.engine.JRDefaultScriptlet;
import net.sf.jasperreports.engine.JRScriptletException;

import java.net.HttpURLConnection;
import java.net.URL;

public class Scriptlet extends JRDefaultScriptlet {
    public void afterReportInit() throws JRScriptletException {
        try {
            URL obj = new URL("http://HOST:PORT/jasperserver-pro/rest_v2/reports/path/to/report/report.pdf?j_username=UserName&j_password=UserPassword");
            HttpURLConnection connection = (HttpURLConnection) obj.openConnection();
            connection.setRequestProperty("Accept", "application/json");
            connection.setRequestMethod("GET");
            connection.setDoOutput(true);
            connection.disconnect();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

Step 2

Then we need to compile this file and create a jar library with its class. You can use Eclipse or Intellij Idea for this.

Step 3

After this we should add this library to classpath of the project in Jaspersoft Studio:

Right Click on "My Reports" Project > Build Path > Configure Build Path > Libraries > Add External Libraries >(your jar file)

Step 4

After this we can create a report and create a scriptlet there. For this go to "Scriptlets" section from "Outline" window > Right Click on "Scriplets" and then  click on "Create Scriptlet" > Give Name="Scriptlet" and Class="com.scriptlet.export.Scriptlet"  (with out double quotes) > Observe that as quick as you create Scriptlet, Jasper Studio engine creates a parameter

           in  "Parameters" node. Here it will create "Scriptlet_SCRIPTLET"

Now, create a TextField with the following expression:

$P{Scriptlet_SCRIPTLET}.afterReportInit()

Step 5

Publish report to the server and run it. You should get pdf export along with report output in JasperReports Server UI.

References

Reports Services of REST API

Scriptlet Tutorial

Simple Scriptlet Example

ref case - akovach 01673546 

scriptlet.jar