org.springframework.ui.jasperreports

## Class JasperReportsUtils

- java.lang.Object
- - org.springframework.ui.jasperreports.JasperReportsUtils

-     public abstract class JasperReportsUtils
      extends Object

  Utility methods for working with JasperReports. Provides a set of convenience methods for generating reports in a CSV, HTML, PDF and XLS formats.
  Since:
    1.1.3
  Author:
    Rob Harrop, Juergen Hoeller

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `JasperReportsUtils()`

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `static net.sf.jasperreports.engine.JRDataSource` | `convertReportData(Object value)` Convert the given report data value to a `JRDataSource`.
    `static void` | `render(net.sf.jasperreports.engine.JRExporter exporter, net.sf.jasperreports.engine.JasperPrint print, OutputStream outputStream)` Render the supplied `JasperPrint` instance using the supplied `JRAbstractExporter` instance and write the results to the supplied `OutputStream`.
    `static void` | `render(net.sf.jasperreports.engine.JRExporter exporter, net.sf.jasperreports.engine.JasperPrint print, Writer writer)` Render the supplied `JasperPrint` instance using the supplied `JRAbstractExporter` instance and write the results to the supplied `Writer`.
    `static void` | `renderAsCsv(net.sf.jasperreports.engine.JasperReport report, Map<String,Object> parameters, Object reportData, Writer writer)` Render a report in CSV format using the supplied report data.
    `static void` | `renderAsCsv(net.sf.jasperreports.engine.JasperReport report, Map<String,Object> parameters, Object reportData, Writer writer, Map<net.sf.jasperreports.engine.JRExporterParameter,Object> exporterParameters)` Render a report in CSV format using the supplied report data.
    `static void` | `renderAsHtml(net.sf.jasperreports.engine.JasperReport report, Map<String,Object> parameters, Object reportData, Writer writer)` Render a report in HTML format using the supplied report data.
    `static void` | `renderAsHtml(net.sf.jasperreports.engine.JasperReport report, Map<String,Object> parameters, Object reportData, Writer writer, Map<net.sf.jasperreports.engine.JRExporterParameter,Object> exporterParameters)` Render a report in HTML format using the supplied report data.
    `static void` | `renderAsPdf(net.sf.jasperreports.engine.JasperReport report, Map<String,Object> parameters, Object reportData, OutputStream stream)` Render a report in PDF format using the supplied report data.
    `static void` | `renderAsPdf(net.sf.jasperreports.engine.JasperReport report, Map<String,Object> parameters, Object reportData, OutputStream stream, Map<net.sf.jasperreports.engine.JRExporterParameter,Object> exporterParameters)` Render a report in PDF format using the supplied report data.
    `static void` | `renderAsXls(net.sf.jasperreports.engine.JasperReport report, Map<String,Object> parameters, Object reportData, OutputStream stream)` Render a report in XLS format using the supplied report data.
    `static void` | `renderAsXls(net.sf.jasperreports.engine.JasperReport report, Map<String,Object> parameters, Object reportData, OutputStream stream, Map<net.sf.jasperreports.engine.JRExporterParameter,Object> exporterParameters)` Render a report in XLS format using the supplied report data.

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Constructor Detail

    - #### JasperReportsUtils

          public JasperReportsUtils()

  - ### Method Detail

    - #### convertReportData

          public static net.sf.jasperreports.engine.JRDataSource convertReportData(Object value)
                                                                            throws IllegalArgumentException

      Convert the given report data value to a `JRDataSource`.

      In the default implementation, a `JRDataSource`, `java.util.Collection` or object array is detected. The latter are converted to `JRBeanCollectionDataSource` or `JRBeanArrayDataSource`, respectively.

      Parameters:
        `value` - the report data value to convert
      Returns:
        the JRDataSource (never `null`)
      Throws:
        `IllegalArgumentException` - if the value could not be converted
      See Also:
        `JRDataSource`, `JRBeanCollectionDataSource`, `JRBeanArrayDataSource`

    - #### render

          public static void render(net.sf.jasperreports.engine.JRExporter exporter,
                    net.sf.jasperreports.engine.JasperPrint print,
                    Writer writer)
                             throws net.sf.jasperreports.engine.JRException

      Render the supplied `JasperPrint` instance using the supplied `JRAbstractExporter` instance and write the results to the supplied `Writer`.

      Make sure that the `JRAbstractExporter` implementation you supply is capable of writing to a `Writer`.

      Parameters:
        `exporter` - the `JRAbstractExporter` to use to render the report
        `print` - the `JasperPrint` instance to render
        `writer` - the `Writer` to write the result to
      Throws:
        `net.sf.jasperreports.engine.JRException` - if rendering failed

    - #### render

          public static void render(net.sf.jasperreports.engine.JRExporter exporter,
                    net.sf.jasperreports.engine.JasperPrint print,
                    OutputStream outputStream)
                             throws net.sf.jasperreports.engine.JRException

      Render the supplied `JasperPrint` instance using the supplied `JRAbstractExporter` instance and write the results to the supplied `OutputStream`.

      Make sure that the `JRAbstractExporter` implementation you supply is capable of writing to a `OutputStream`.

      Parameters:
        `exporter` - the `JRAbstractExporter` to use to render the report
        `print` - the `JasperPrint` instance to render
        `outputStream` - the `OutputStream` to write the result to
      Throws:
        `net.sf.jasperreports.engine.JRException` - if rendering failed

    - #### renderAsCsv

          public static void renderAsCsv(net.sf.jasperreports.engine.JasperReport report,
                         Map<String,Object> parameters,
                         Object reportData,
                         Writer writer)
                                  throws net.sf.jasperreports.engine.JRException

      Render a report in CSV format using the supplied report data. Writes the results to the supplied `Writer`.
      Parameters:
        `report` - the `JasperReport` instance to render
        `parameters` - the parameters to use for rendering
        `writer` - the `Writer` to write the rendered report to
        `reportData` - a `JRDataSource`, `java.util.Collection` or object array (converted accordingly), representing the report data to read fields from
      Throws:
        `net.sf.jasperreports.engine.JRException` - if rendering failed
      See Also:
        `convertReportData(java.lang.Object)`

    - #### renderAsCsv

          public static void renderAsCsv(net.sf.jasperreports.engine.JasperReport report,
                         Map<String,Object> parameters,
                         Object reportData,
                         Writer writer,
                         Map<net.sf.jasperreports.engine.JRExporterParameter,Object> exporterParameters)
                                  throws net.sf.jasperreports.engine.JRException

      Render a report in CSV format using the supplied report data. Writes the results to the supplied `Writer`.
      Parameters:
        `report` - the `JasperReport` instance to render
        `parameters` - the parameters to use for rendering
        `writer` - the `Writer` to write the rendered report to
        `reportData` - a `JRDataSource`, `java.util.Collection` or object array (converted accordingly), representing the report data to read fields from
        `exporterParameters` - a `Map` of `exporter parameters`
      Throws:
        `net.sf.jasperreports.engine.JRException` - if rendering failed
      See Also:
        `convertReportData(java.lang.Object)`

    - #### renderAsHtml

          public static void renderAsHtml(net.sf.jasperreports.engine.JasperReport report,
                          Map<String,Object> parameters,
                          Object reportData,
                          Writer writer)
                                   throws net.sf.jasperreports.engine.JRException

      Render a report in HTML format using the supplied report data. Writes the results to the supplied `Writer`.
      Parameters:
        `report` - the `JasperReport` instance to render
        `parameters` - the parameters to use for rendering
        `writer` - the `Writer` to write the rendered report to
        `reportData` - a `JRDataSource`, `java.util.Collection` or object array (converted accordingly), representing the report data to read fields from
      Throws:
        `net.sf.jasperreports.engine.JRException` - if rendering failed
      See Also:
        `convertReportData(java.lang.Object)`

    - #### renderAsHtml

          public static void renderAsHtml(net.sf.jasperreports.engine.JasperReport report,
                          Map<String,Object> parameters,
                          Object reportData,
                          Writer writer,
                          Map<net.sf.jasperreports.engine.JRExporterParameter,Object> exporterParameters)
                                   throws net.sf.jasperreports.engine.JRException

      Render a report in HTML format using the supplied report data. Writes the results to the supplied `Writer`.
      Parameters:
        `report` - the `JasperReport` instance to render
        `parameters` - the parameters to use for rendering
        `writer` - the `Writer` to write the rendered report to
        `reportData` - a `JRDataSource`, `java.util.Collection` or object array (converted accordingly), representing the report data to read fields from
        `exporterParameters` - a `Map` of `exporter parameters`
      Throws:
        `net.sf.jasperreports.engine.JRException` - if rendering failed
      See Also:
        `convertReportData(java.lang.Object)`

    - #### renderAsPdf

          public static void renderAsPdf(net.sf.jasperreports.engine.JasperReport report,
                         Map<String,Object> parameters,
                         Object reportData,
                         OutputStream stream)
                                  throws net.sf.jasperreports.engine.JRException

      Render a report in PDF format using the supplied report data. Writes the results to the supplied `OutputStream`.
      Parameters:
        `report` - the `JasperReport` instance to render
        `parameters` - the parameters to use for rendering
        `stream` - the `OutputStream` to write the rendered report to
        `reportData` - a `JRDataSource`, `java.util.Collection` or object array (converted accordingly), representing the report data to read fields from
      Throws:
        `net.sf.jasperreports.engine.JRException` - if rendering failed
      See Also:
        `convertReportData(java.lang.Object)`

    - #### renderAsPdf

          public static void renderAsPdf(net.sf.jasperreports.engine.JasperReport report,
                         Map<String,Object> parameters,
                         Object reportData,
                         OutputStream stream,
                         Map<net.sf.jasperreports.engine.JRExporterParameter,Object> exporterParameters)
                                  throws net.sf.jasperreports.engine.JRException

      Render a report in PDF format using the supplied report data. Writes the results to the supplied `OutputStream`.
      Parameters:
        `report` - the `JasperReport` instance to render
        `parameters` - the parameters to use for rendering
        `stream` - the `OutputStream` to write the rendered report to
        `reportData` - a `JRDataSource`, `java.util.Collection` or object array (converted accordingly), representing the report data to read fields from
        `exporterParameters` - a `Map` of `exporter parameters`
      Throws:
        `net.sf.jasperreports.engine.JRException` - if rendering failed
      See Also:
        `convertReportData(java.lang.Object)`

    - #### renderAsXls

          public static void renderAsXls(net.sf.jasperreports.engine.JasperReport report,
                         Map<String,Object> parameters,
                         Object reportData,
                         OutputStream stream)
                                  throws net.sf.jasperreports.engine.JRException

      Render a report in XLS format using the supplied report data. Writes the results to the supplied `OutputStream`.
      Parameters:
        `report` - the `JasperReport` instance to render
        `parameters` - the parameters to use for rendering
        `stream` - the `OutputStream` to write the rendered report to
        `reportData` - a `JRDataSource`, `java.util.Collection` or object array (converted accordingly), representing the report data to read fields from
      Throws:
        `net.sf.jasperreports.engine.JRException` - if rendering failed
      See Also:
        `convertReportData(java.lang.Object)`

    - #### renderAsXls

          public static void renderAsXls(net.sf.jasperreports.engine.JasperReport report,
                         Map<String,Object> parameters,
                         Object reportData,
                         OutputStream stream,
                         Map<net.sf.jasperreports.engine.JRExporterParameter,Object> exporterParameters)
                                  throws net.sf.jasperreports.engine.JRException

      Render a report in XLS format using the supplied report data. Writes the results to the supplied `OutputStream`.
      Parameters:
        `report` - the `JasperReport` instance to render
        `parameters` - the parameters to use for rendering
        `stream` - the `OutputStream` to write the rendered report to
        `reportData` - a `JRDataSource`, `java.util.Collection` or object array (converted accordingly), representing the report data to read fields from
        `exporterParameters` - a `Map` of `exporter parameters`
      Throws:
        `net.sf.jasperreports.engine.JRException` - if rendering failed
      See Also:
        `convertReportData(java.lang.Object)`