java - 使用 Java 保存 Word 文件(可运行的 JAR)

Question

我正在尝试构建一个应用程序，它可以从 Excel 文件中读取信息并将数据放入文档中。该文档是一种包含列的模板形式。在保存部分之前一切正常。

它几乎可以正常工作，就像我直接在 IntelliJ 中运行程序一样。但是，当我使用 Maven 将应用程序安装到可运行的 JAR 时，该 JAR 将无法工作。

文件已根据需要保存...但如果我从 JAR 运行应用程序，新文件将不包含任何内容。当我直接在 IntelliJ 中运行时，新文件已创建并打开，但在 3 列/行中，只有 2 列包含数据。

我能做什么？

模板文档链接

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

提前谢谢您

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 {
        }
    }

堆栈跟踪

    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

很可能在将其导出为 JAR 时缺少库。您正在使用 Apache POI 作为外部库。在 IDE 内部应用了所有库，但导出时它们似乎丢失了。只需从命令提示符运行 jar 文件即可 100% 清楚地了解该问题。在 NetBeans 等 IDE 中，库会导出到名为 lib 的单独文件夹中，也可查找与您的 IDE 相关的类似内容。