使用JasperReports与数据库连接进行报告

Question

I'm trying to make a report with JasperReports containing the result of the queries to a database. I followed some tutorials and I wrote the code. The part which the database connection it's ok, it works:

"Get connection ... Get connection oracle.jdbc.driver.************ Done!", but when I'm trying to run the class with the report, I face some exceptions:

1) Exception in thread "main" net.sf.jasperreports.engine.JRException: Error compiling report java source files : E:\\Fc\\Java\\hws\\L9again\\StyledTextReport_1462019818479_424906.java;

2)Caused by: java.io.IOException: Cannot run program "javac": CreateProcess error=2, The system cannot find the file specified;

3)Caused by: java.io.IOException: CreateProcess error=2, The system cannot find the file specified.

My code for the part with the report is:

package org.o7;
import java.io.File;
import java.sql.Connection;
import java.sql.SQLException;
import java.util.HashMap;
import java.util.Map;

import net.sf.jasperreports.engine.JRException; 
import net.sf.jasperreports.engine.JasperCompileManager;
import net.sf.jasperreports.engine.JasperFillManager;
import net.sf.jasperreports.engine.JasperPrint;
import net.sf.jasperreports.engine.JasperReport;
import net.sf.jasperreports.engine.export.JRPdfExporter;
import net.sf.jasperreports.export.ExporterInput;
import net.sf.jasperreports.export.OutputStreamExporterOutput;
import net.sf.jasperreports.export.SimpleExporterInput;
import net.sf.jasperreports.export.SimpleOutputStreamExporterOutput;
import net.sf.jasperreports.export.SimplePdfExporterConfiguration;

public class JavaCallJasperReport {

public static void main(String[] args) throws JRException,
        ClassNotFoundException, SQLException {

    String reportSrcFile =     "C:/jasperreport/StyledTextReport/StyledTextReport.jrxml";

    // First, compile jrxml file.
    JasperReport jasperReport =   JasperCompileManager.compileReport(reportSrcFile);

    Connection conn = ConnectionUtils.getConnection();

    // Parameters for report
    Map<String, Object> parameters = new HashMap<String, Object>();

    JasperPrint print = JasperFillManager.fillReport(jasperReport,
            parameters, conn);

    // Make sure the output directory exists.
    File outDir = new File("C:/jasperoutput");
    outDir.mkdirs();

    // PDF Exportor.
    JRPdfExporter exporter = new JRPdfExporter();

    ExporterInput exporterInput = new SimpleExporterInput(print);
    // ExporterInput
    exporter.setExporterInput(exporterInput);

    // ExporterOutput
    OutputStreamExporterOutput exporterOutput = new SimpleOutputStreamExporterOutput(
            "C:/jasperoutput/FirstJasperReport.pdf");
    // Output
    exporter.setExporterOutput(exporterOutput);

    //
    SimplePdfExporterConfiguration configuration = new SimplePdfExporterConfiguration();
    exporter.setConfiguration(configuration);
    exporter.exportReport();

    System.out.print("Done2!");
}
}

Can anyone tell me what can I do to solve this?

Answer 1

请尝试将jdt-compiler.jar放在您的classpath中。如果这样做有问题，请告诉我