net.sf.jasperreports.engine.JRException: java.lang.ClassCastException: net.sf.jasperreports.engine.data.JsonDataSource cannot be cast to java.sql.Connection

[1766680358]

I had a problem when I used the JSON data source to generate a report

 

    net.sf.jasperreports.engine.JRException: java.lang.ClassCastException: net.sf.jasperreports.engine.data.JsonDataSource cannot be cast to java.sql.Connection

    at com.jaspersoft.studio.editor.preview.view.control.ReportController.fillReport(ReportController.java:551)

    at com.jaspersoft.studio.editor.preview.view.control.ReportController.access$18(ReportController.java:526)

    at com.jaspersoft.studio.editor.preview.view.control.ReportController$1.run(ReportController.java:444)

    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)

Caused by: java.lang.ClassCastException: net.sf.jasperreports.engine.data.JsonDataSource cannot be cast to java.sql.Connection

    at net.sf.jasperreports.engine.fill.JRFillSubreport.evaluateSubreport(JRFillSubreport.java:509)

    at net.sf.jasperreports.engine.fill.JRFillSubreport.evaluate(JRFillSubreport.java:350)

    at net.sf.jasperreports.engine.fill.JRFillElementContainer.evaluate(JRFillElementContainer.java:383)

    at net.sf.jasperreports.engine.fill.JRFillFrame.evaluate(JRFillFrame.java:159)

    at net.sf.jasperreports.engine.fill.JRFillElementContainer.evaluate(JRFillElementContainer.java:383)

    at net.sf.jasperreports.engine.fill.JRFillBand.evaluate(JRFillBand.java:548)

    at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillColumnBand(JRVerticalFiller.java:2583)

    at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillDetail(JRVerticalFiller.java:813)

    at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReportStart(JRVerticalFiller.java:264)

    at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReport(JRVerticalFiller.java:110)

    at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:615)

    at net.sf.jasperreports.engine.fill.BaseReportFiller.fill(BaseReportFiller.java:433)

    at net.sf.jasperreports.engine.fill.JRFillSubreport.fillSubreport(JRFillSubreport.java:818)

    at net.sf.jasperreports.engine.fill.JRSubreportRunnable.run(JRSubreportRunnable.java:61)

    at net.sf.jasperreports.engine.fill.AbstractThreadSubreportRunner.run(AbstractThreadSubreportRunner.java:221)

    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)

    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)

    at java.lang.Thread.run(Thread.java:748)

 

This is my JSON data

{

    "supplierName": "aa",

    "supplierCity": "supplierCity",

    "supplierNo": "",

    "dnNo": "",

    "customerName": "",

    "customerCity": "",

    "customerNo": "",

    "dataList": [

      {

        "matailDetail": [

          {

            "b1": "10",

            "b2": "20",

            "b3": "30",

            "b4": "40",

            "b5": "50"

          },

          {

            "b1": "60",

            "b2": "70",

            "b3": "80",

            "b4": "90",

            "b5": "100"

          }

        ],

        "pList": [

          {

            "s1": "5002528310",

            "s2": "03L 130 216 A",

            "s3": "750000 PC",

            "s4": "123456789 Series",

            "s5": "S000111222",

            "s6": "1040H AB-Z4-3",

            "containers": [

              {

                "lineDetails": [

                  {

                    "trayNo": "1",

                    "a1": "1",

                    "a2": "Single",

                    "a3": "KISTE A",

                    "a4": "SNR 1",

                    "a5": "15 ST"

                  }

                ]

              },

              {

                "lineDetails": [

                  {

                    "trayNo": "2",

                    "a1": "1",

                    "a2": "Master",

                    "a3": "PALETTE A"

                  },

                  {

                    "trayNo": "2",

                    "a1": "1",

                    "a2": "",

                    "a3": "DECKEL A"

                  },

                  {

                    "trayNo": "2",

                    "a1": "4",

                    "a2": "Single",

                    "a3": "KISTE B",

                    "a4": "SNR 1",

                    "a5": "20 ST"

                  }

                ]

              }

            ]

          }

        ]

      }

    ]

  }

[Mehak Rajkumar]

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[Rutuja Bhalchandra Shinde]

Hi,

Could you please try to create a JSON data source as per the following video? Let me know how it works.