如何顯示從DefaultTableModel傳遞的Jasper報告表中的數據

Question

我正在Java Swing中進行項目開發，並在Jasper Report中進行報告。

我已經使用Jasper Report設計了該報告，並且從Java Class調用了該報告。 現在，我想以TableModel的形式發送數據以在報表Table中設置值，但是Jasper報表表未按TableModel的形式顯示表數據。

甚至報告文件也無法通過JAR打開。 如果我正在創建jar，則“ Jasper報告”頁面將引發異常。

我想像使用Java代碼中的tableModelData一樣在Report Table中發送表模型數據。 我正在使用以下代碼。

   package pmc;
   import java.util.HashMap;
   import javax.swing.table.DefaultTableModel;
   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.data.JRTableModelDataSource;
   import net.sf.jasperreports.view.JasperViewer;

   public class SimpleReport1 {

   DefaultTableModel tableModel;

   public SimpleReport1() {
     JasperPrint jasperPrint = null;
      TableModelData();
       try {
            JasperCompileManager.compileReportToFile("src/reports/report1.jrxml");
        jasperPrint = JasperFillManager.fillReport("src/reports/report1.jasper", new HashMap(),
                new JRTableModelDataSource(tableModel));
        JasperViewer jasperViewer = new JasperViewer(jasperPrint);
        jasperViewer.setVisible(true);
    } catch (JRException ex) {
        ex.printStackTrace();

}}

private void TableModelData() {
    String[] columnNames = {"Id", "Name", "Department", "Email"};
    String[][] data = {
        {"111", "G Conger", " Orthopaedic", "jim@wheremail.com"},
        {"222", "A Date", "ENT", "adate@somemail.com"},
        {"333", "R Linz", "Paedriatics", "rlinz@heremail.com"},
        {"444", "V Sethi", "Nephrology", "vsethi@whomail.com"},
        {"555", "K Rao", "Orthopaedics", "krao@whatmail.com"},
        {"666", "V Santana", "Nephrology", "vsan@whenmail.com"},
        {"777", "J Pollock", "Nephrology", "jpol@domail.com"},
        {"888", "H David", "Nephrology", "hdavid@donemail.com"},
        {"999", "P Patel", "Nephrology", "ppatel@gomail.com"},
        {"101", "C Comer", "Nephrology", "ccomer@whymail.com"}
    };
    tableModel = new DefaultTableModel(data, columnNames);
}
public static void main(String[] args) {
    new SimpleReport1();
}
}

Answer 1

更改此行：

JasperCompileManager.compileReportToFile("src/reports/report1.jrxml");

至：

JasperCompileManager.compileReportToFile("src/reports/report1.jrxml","src/reports/report1.jasper");