使用Java保存Word文件（可运行的JAR）

Question

I´m trying to build an application which can read information from Excel files and place the data into a document. The document is a form of a template with columns in. Everything works just fine until the saving part.

It work, almost, like it should when I run the program directly in IntelliJ. However, when I install the application to an runnable JAR with Maven - the JAR won't work.

The file is saved as desired... But the new file contains nothing if I run the application from JAR. When i run directly in IntelliJ, the new file is been created and opened, but of 3 columns / row, only 2 has data in it.

What can I do?

Link to template document

http://www.labelmedia.de/englisch/doc/70%20x%2032%20mm%20-%20Art.%2088%2010%2027%2070%2032.doc

Thank you in advanced

package utils;

import model.Customers;
import org.apache.poi.hwpf.HWPFDocument;
import org.apache.poi.hwpf.usermodel.*;
import org.apache.poi.poifs.filesystem.POIFSFileSystem;
import java.awt.*;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.ArrayList;

public class WriteToDocument {
    String TARGET_FILE = "src\\main\\java\\utils\\template\\template.doc";
    private int postInList = 0;

    public WriteToDocument() {}

    public WriteToDocument(ArrayList<Customers> list) throws IOException {
        list.remove(0);

        HWPFDocument doc = null;
        try {
            doc = openDocument(TARGET_FILE);

            Range range = doc.getRange();
            TableIterator itr = new TableIterator(range);
            while (itr.hasNext()) {
                Table table = itr.next();
                for (int rowIndex = 0; rowIndex < table.numRows(); rowIndex++) {
                    TableRow row = table.getRow(rowIndex);
                    for (int colIndex = 0; colIndex < row.numCells(); colIndex++) {
                        TableCell cell = row.getCell(colIndex);

                        //WRITE IN TABLE //
                        if (postInList < list.size()) {
                            cell.getParagraph(0).replaceText(list.get(postInList).getName() + "\n\r" +
                                    "\n\r" + list.get(postInList).getAddress() + "\n\r" +
                                    list.get(postInList).getPostcode() + " " + list.get(postInList).getCity(), false);
                            postInList++;
                        }
                    }
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            saveDocument(doc);

        }
    }

    private HWPFDocument openDocument(String file) throws Exception {
        System.out.println("OPEN");
        return new HWPFDocument(new POIFSFileSystem(new FileInputStream(file)));
    }

    private static void saveDocument(HWPFDocument doc) throws IOException {
        System.out.println("SAVE");
        try (FileOutputStream out = new FileOutputStream(new File("test.doc"))) {
            doc.write(out);
            out.flush();
            System.out.println("File saved");
            doc.close();
            out.close();
            Desktop dt = Desktop.getDesktop();
            dt.open(new File("test.doc"));
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
        }
    }

Stacktrace

    java.io.FileNotFoundException: src\main\java\utils\template\template.doc (Det går inte att hitta sökvägen)
        at java.io.FileInputStream.open0(Native Method)
        at java.io.FileInputStream.open(Unknown Source)
        at java.io.FileInputStream.<init>(Unknown Source)
        at java.io.FileInputStream.<init>(Unknown Source)
        at utils.WriteToDocument.openDocument(WriteToDocument.java:56)
        at utils.WriteToDocument.<init>(WriteToDocument.java:25)
        at utils.ReadExcel.writeToDocument(ReadExcel.java:64)
        at utils.ReadExcel.<init>(ReadExcel.java:57)
        at MainFrameController$1.actionPerformed(MainFrameController.java:31)
        at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
        at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
        at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
        at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
        at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
        at java.awt.Component.processMouseEvent(Unknown Source)
        at javax.swing.JComponent.processMouseEvent(Unknown Source)
        at java.awt.Component.processEvent(Unknown Source)
        at java.awt.Container.processEvent(Unknown Source)
        at java.awt.Component.dispatchEventImpl(Unknown Source)
        at java.awt.Container.dispatchEventImpl(Unknown Source)
        at java.awt.Component.dispatchEvent(Unknown Source)
        at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
        at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
        at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
        at java.awt.Container.dispatchEventImpl(Unknown Source)
        at java.awt.Window.dispatchEventImpl(Unknown Source)
        at java.awt.Component.dispatchEvent(Unknown Source)
        at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
        at java.awt.EventQueue.access$500(Unknown Source)
        at java.awt.EventQueue$3.run(Unknown Source)
        at java.awt.EventQueue$3.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
        at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
        at java.awt.EventQueue$4.run(Unknown Source)
        at java.awt.EventQueue$4.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
        at java.awt.EventQueue.dispatchEvent(Unknown Source)
        at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
        at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
        at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
        at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
        at java.awt.EventDispatchThread.run(Unknown Source)
SAVE
Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
        at utils.WriteToDocument.saveDocument(WriteToDocument.java:62)
        at utils.WriteToDocument.<init>(WriteToDocument.java:49)
        at utils.ReadExcel.writeToDocument(ReadExcel.java:64)
        at utils.ReadExcel.<init>(ReadExcel.java:57)
        at MainFrameController$1.actionPerformed(MainFrameController.java:31)
        at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
        at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
        at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
        at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
        at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
        at java.awt.Component.processMouseEvent(Unknown Source)
        at javax.swing.JComponent.processMouseEvent(Unknown Source)
        at java.awt.Component.processEvent(Unknown Source)
        at java.awt.Container.processEvent(Unknown Source)
        at java.awt.Component.dispatchEventImpl(Unknown Source)
        at java.awt.Container.dispatchEventImpl(Unknown Source)
        at java.awt.Component.dispatchEvent(Unknown Source)
        at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
        at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
        at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
        at java.awt.Container.dispatchEventImpl(Unknown Source)
        at java.awt.Window.dispatchEventImpl(Unknown Source)
        at java.awt.Component.dispatchEvent(Unknown Source)
        at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
        at java.awt.EventQueue.access$500(Unknown Source)
        at java.awt.EventQueue$3.run(Unknown Source)
        at java.awt.EventQueue$3.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
        at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
        at java.awt.EventQueue$4.run(Unknown Source)
        at java.awt.EventQueue$4.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
        at java.awt.EventQueue.dispatchEvent(Unknown Source)
        at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
        at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
        at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
        at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
        at java.awt.EventDispatchThread.run(Unknown Source)

Answer 1

Most probably you are missing libraries when it is exported as a JAR. You are using Apache POI as external libraries. Inside the IDE all the libraries were applied but when exported, they seems to be missing. Just run the jar file from command prompt to be 100% clear about the issue. In IDEs like NetBeans the libraries are exported into a separate folder called lib have a look for similar related to your IDE as well.