Java课程设计-文档相似性检查系统（完整）测试版

本版本文档相似性系统存在不足：比较相似率比较高，比较效果不太明显。有些doc文档读取出现报错 问题！！

算法还有待完善。。。会加强探究，解决问题。

请耐心等候

import java.awt.BorderLayout;import java.awt.Color;import java.awt.GridLayout;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.io.File;import java.text.DecimalFormat;import javax.swing.JButton;import javax.swing.JFileChooser;import javax.swing.JFrame;import javax.swing.JPanel;import javax.swing.JScrollPane;import javax.swing.JTextArea;import javax.swing.JTextField;@SuppressWarnings("serial")public class Jframe extends JFrame implements ActionListener {/*********** * 定义按钮、文本框、文本域、滚动条、 * 文件选择对话框、  *     *************/static JButton jb1;static JTextField jtf1;static JButton jb2;static JTextField jtf2;static JButton jb3;static JTextField jtf3;static JTextArea jta;JScrollPane jsp;JFrame jf;static JFileChooser filechoose;static File file;public static String path1;public static String path2;static String text2;static String text3;//定义一个数字格式化对象，格式化模板为".00"，即保留2位小数.static DecimalFormat df = new DecimalFormat( "0.00 ");public Jframe() {init();}public void init() {/********** * 实例化JFrame框架、按钮、文本框 * 文本域、滚动条     **********/jf = new JFrame("文件相似度比较");JPanel jpanel = new JPanel();jpanel.setLayout(new GridLayout(3, 3, 5, 5));jb1 = new JButton("选择文件1");jtf1 = new JTextField(10);jb2 = new JButton("选择文件2");jtf2 = new JTextField(10);jb3 = new JButton("比较文件夹所有文件");jtf3 = new JTextField(10);jta = new JTextArea(100, 35);jta.setLineWrap(true);jsp = new JScrollPane(jta, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);jpanel.add(jb1);           //把按钮与文本框添加到jpaneljpanel.add(jtf1);jpanel.add(jb2);jpanel.add(jtf2);jpanel.add(jb3);jpanel.add(jtf3);JPanel jparea = new JPanel();jparea.add(jsp);                 //把滚动条添加到面板jpareajb1.addActionListener(this);   //为按钮增添监听器jb2.addActionListener(this);jb3.addActionListener(this);jf.setLayout(new BorderLayout());jf.add(jpanel, "North");   //把面板jpanel与面板jparea添加到JFrame框架jf.add(jparea, "Center");//jf.add(jsp);            //把滚动条加到JFrame框架jf.setBackground(Color.white);jf.setSize(350, 400);jf.setVisible(true);jf.setLocation(650, 350);jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);}@Overridepublic void actionPerformed(ActionEvent e) {// TODO Auto-generated method stubfilechoose = new JFileChooser();           //实例化文件选择对话框@SuppressWarnings("unused")wordortxt world = new wordortxt();       //实例化类wordtxt@SuppressWarnings("unused")CosineSimilarAlgorithm jisuan = new CosineSimilarAlgorithm();//实例化类CosineSimilarAlgorithmif (e.getActionCommand().equals("选择文件1")) {     //实现按钮监听事件//文件选择方式为文件和文件夹filechoose.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES);filechoose.showOpenDialog(null);           //弹出文件选择对话框file = filechoose.getSelectedFile();if (file != null) {                         //判断选择是否为空if (file.isFile()) {                   //判断选择是否为文件path1 = file.getAbsolutePath();   //获得选择文件路径jtf1.setText(path1);text2 = judge(path1);            //调用judge（）方法}}}if (e.getActionCommand().equals("选择文件2")) {         //实现按钮监听事件filechoose.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES);filechoose.showOpenDialog(null);file = filechoose.getSelectedFile();if (file != null) {if (file.isFile()) {path2 = file.getAbsolutePath();jtf2.setText(path2);text3 = judge(path2);double value = CosineSimilarAlgorithm.getSimilarity(text2, text3);jta.append("相似度：" + df.format(value*100) + "%" + "\n");}}}if (e.getActionCommand().equals("比较文件夹所有文件")) {        //实现按钮监听事件filechoose.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES);filechoose.showOpenDialog(null);file = filechoose.getSelectedFile();if (file != null) {if (file.isDirectory()) {    //判断选择是否为文件夹getFile1();}}}}public static void getFile1() {int j, i;String path = file.getAbsolutePath();File[] f = file.listFiles();    //获得文件夹下的所有文件jtf3.setText(path);String[] temp = new String[f.length]; System.out.println("文件个数" + f.length);for (i = 0; i < temp.length; i++) {temp[i] = String.valueOf(f[i].getAbsolutePath());  //循环把文件路径保存到数组temp[]text2 = judge(temp[i]);           //调用judge（）方法返回字符串text2String nafile1 = f[i].getName();  //获得文件名//System.out.println(temp[i]);for (j = i + 1; j < temp.length; j++) {    //循环获得下一个文件与temp[i]比较temp[j] = String.valueOf(f[j].getAbsolutePath());String nafile2 = f[j].getName();text3 = judge(temp[j]);double value = CosineSimilarAlgorithm.getSimilarity(text2, text3);if(value > 0.7){    //把相似度大于0.7的文件输出到文本域jta.append("相似度：" + " " + nafile1 + " 与 " + " " +nafile2 + "  "+df.format(value*100)+ "%"+"\n");}}}}public static String judge(String str) {     //判断文件是否为doc、txt文本、或者PDF并返回一个字符串String text = null;if (str.endsWith("doc")) {try {text = wordortxt.readDoc(str);} catch (Exception e1) {// TODO Auto-generated catch blocke1.printStackTrace();}} if (str.endsWith("txt")) {try {text = wordortxt.readtxt(str);} catch (Exception e1) {// TODO Auto-generated catch blocke1.printStackTrace();}}else if (str.endsWith("pdf")) {try {text = wordortxt.readPDF(str);} catch (Exception e1) {// TODO Auto-generated catch blocke1.printStackTrace();}}return text;}}