我在java中创建了一个读取doc和docx文件的搜索工具。首先，用户必须选择包含单词文档的文件夹。该程序工作正常但是当我选择桌面作为文件夹时，它会出现以下错误：org.apache.poi.openxml4j.exceptions.InvalidFormatException：包应包含内容类型部分[M1.13]
这是我的代码：
import java.io.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.SwingUtilities;
import javax.swing.filechooser.*;
import java.util.Scanner;
import javax.swing.JOptionPane;
import java.util.ArrayList;
import org.apache.poi.xwpf.extractor.XWPFWordExtractor;
import org.apache.poi.xwpf.usermodel.XWPFDocument;
import org.apache.poi.hwpf.HWPFDocument;
import org.apache.poi.hwpf.extractor.WordExtractor;
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
/*
* Main.java
*
* Created on Jul 4, 2014, 8:19:21 AM
*/
/**
*
* @author Yağız
*/
public class search extends javax.swing.JFrame {
Boolean check = true;
File[] filelist;
/** Creates new form Main */
public search() {
initComponents();
setIcon();
}
/** This method is called from within the constructor to
* initialize the form.
* WARNING: Do NOT modify this code. The content of this method is
* always regenerated by the Form Editor.
*/
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
bindingGroup = new org.jdesktop.beansbinding.BindingGroup();
jFrame1 = new javax.swing.JFrame();
jMenuBar1 = new javax.swing.JMenuBar();
jMenu1 = new javax.swing.JMenu();
jMenu2 = new javax.swing.JMenu();
label1 = new java.awt.Label();
jTextField1 = new javax.swing.JTextField();
jButton1 = new javax.swing.JButton();
jButton2 = new javax.swing.JButton();
javax.swing.GroupLayout jFrame1Layout = new javax.swing.GroupLayout(jFrame1.getContentPane());
jFrame1.getContentPane().setLayout(jFrame1Layout);
jFrame1Layout.setHorizontalGroup(
jFrame1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGap(0, 400, Short.MAX_VALUE)
);
jFrame1Layout.setVerticalGroup(
jFrame1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGap(0, 300, Short.MAX_VALUE)
);
jMenu1.setText("File");
jMenuBar1.add(jMenu1);
jMenu2.setText("Edit");
jMenuBar1.add(jMenu2);
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
org.jdesktop.beansbinding.Binding binding = org.jdesktop.beansbinding.Bindings.createAutoBinding(org.jdesktop.beansbinding.AutoBinding.UpdateStrategy.READ_WRITE, jFrame1, org.jdesktop.beansbinding.ELProperty.create("CV Search"), this, org.jdesktop.beansbinding.BeanProperty.create("title"));
bindingGroup.addBinding(binding);
label1.setText("Keyword:");
jButton1.setText("Find");
jButton1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton1ActionPerformed(evt);
}
});
jButton2.setText("Select Folder");
jButton2.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton2ActionPerformed(evt);
}
});
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(29, 29, 29)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addComponent(jButton2)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 56, Short.MAX_VALUE)
.addComponent(jButton1))
.addGroup(layout.createSequentialGroup()
.addComponent(label1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, 140, javax.swing.GroupLayout.PREFERRED_SIZE)))
.addGap(29, 29, 29))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(22, 22, 22)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
.addComponent(label1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(18, 18, 18)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jButton2)
.addComponent(jButton1))
.addGap(37, 37, 37))
);
bindingGroup.bind();
java.awt.Dimension screenSize = java.awt.Toolkit.getDefaultToolkit().getScreenSize();
setBounds((screenSize.width-278)/2, (screenSize.height-158)/2, 278, 158);
jFrame1.getRootPane().setDefaultButton(jButton1);
}// </editor-fold>
private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {
//Select Folder Button
try{
JFileChooser fc = new JFileChooser();
fc.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
fc.showOpenDialog(null);
if(fc.getSelectedFile()==null){
check = false;
}
else
{
File folder = new File(fc.getSelectedFile().getPath());
filelist = folder.listFiles();
if( filelist.length == 0 ){
// dialog: folder is empty
check = false;
}
else
{
check = true;
}
}
}catch(Exception e){
e.printStackTrace();
JOptionPane.showMessageDialog(null, "Error");
}
}
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
//Find button for finding the word in word documents in the selected folder
String keyword = jTextField1.getText();
int count=0;
while (! check ) {
JOptionPane.showMessageDialog(null, "Select a Folder!");
return;
}
if(keyword.equals("")){
JOptionPane.showMessageDialog(null, "No keyword found!");
return;
}
ArrayList result = new ArrayList();
try
{
for( int i=0; i < filelist.length; i++){
// maybe also .doc?
if( filelist[i].getName().endsWith( ".docx" ) ){
count++;
XWPFDocument input = new XWPFDocument(new FileInputStream(filelist[i]));
XWPFWordExtractor extract = new XWPFWordExtractor(input);
Scanner scan = new Scanner(extract.getText());
while(scan.hasNext())
{
String word = scan.next();
if( keyword.equalsIgnoreCase(word) ) {
result.add(filelist[i].getName().replace(".docx",""));
break;
}
}
}
else if(filelist[i].getName().endsWith( ".doc" )){
HWPFDocument inputdoc = new HWPFDocument(new FileInputStream(filelist[i]));
WordExtractor extract = new WordExtractor(inputdoc);
Scanner scan = new Scanner(extract.getText());
while(scan.hasNext())
{
String word = scan.next();
if( keyword.equalsIgnoreCase(word) ) {
result.add(filelist[i].getName().replace(".doc",""));
break;
}
}
}
else
continue;
}
if( count == 0 ){
JOptionPane.showMessageDialog(null,"Selected folder must contain word documents");
return;
}
//...
if(result.isEmpty()){
JOptionPane.showMessageDialog(null,"No match found!");
return;
}
else {
StringBuilder sb = new StringBuilder();
for( int j = 0; j < result.size(); j++){
sb.append( result.get(j) ).append( "\n" );
}
JOptionPane.showMessageDialog( null, sb.toString(), "Results", JOptionPane.INFORMATION_MESSAGE );
}
} catch (Exception e){
e.printStackTrace();
JOptionPane.showMessageDialog(null, "Error!");
}
}
private void jTextField1KeyPressed(java.awt.event.KeyEvent evt) {
if( evt.getKeyCode() == KeyEvent.VK_ENTER ){
jButton1.doClick();
}
}
/**
* @param args the command line arguments
*/
public static void main(String args[]) {
/* Set the Nimbus look and feel */
//<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
/* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
* For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
*/
try {
for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
javax.swing.UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (ClassNotFoundException ex) {
java.util.logging.Logger.getLogger(search.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(search.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(search.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(search.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
}
//</editor-fold>
/* Create and display the form */
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new search().setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.JButton jButton1;
private javax.swing.JButton jButton2;
private javax.swing.JFrame jFrame1;
private javax.swing.JMenu jMenu1;
private javax.swing.JMenu jMenu2;
private javax.swing.JMenuBar jMenuBar1;
private javax.swing.JTextField jTextField1;
private java.awt.Label label1;
private org.jdesktop.beansbinding.BindingGroup bindingGroup;
// End of variables declaration
private void setIcon(){
setIconImage(Toolkit.getDefaultToolkit().getImage(getClass().getResource("icon.png")));
}
}
此错误的含义是什么？何时发生？任何人都可以帮助我的情况吗？感谢