JavaSwing实现的文本比较软件

import javax.swing.text.BadLocationException;
import javax.swing.text.Document;
import javax.swing.text.SimpleAttributeSet;
import javax.swing.text.StyleConstants;

public class Star
{
    public static void main(String args[]) throws BadLocationException
    {
        //初始化界面
        Windowm windowm = new Windowm();
        
        
        //属性设置
        SimpleAttributeSet attrset = new SimpleAttributeSet();
        //字体大小
        StyleConstants.setFontSize(attrset,16);
        //获取JTextPane对象
        Document docs1=windowm.text1.getDocument();
        //设置初次显示文本
        docs1.insertString(docs1.getLength(), "手动输入或者选择文件打开", attrset);        
        Document docs2=windowm.text2.getDocument();
        docs2.insertString(docs2.getLength(), "手动输入输入或者选择文间打开\n点击核对试试\n红色表示错误字符\n蓝色表示多余或缺失字符", attrset);
    }
}

import algorithm.DNASequence;
import open_file.Read_File;

import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ComponentAdapter;
import java.awt.event.ComponentEvent;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.io.File;
import javax.swing.*;
import javax.swing.text.Document;
import javax.swing.text.SimpleAttributeSet;
import javax.swing.text.StyleConstants;

class Windowm extends JFrame
{
    String path1;//第一个文件目录
    String path2;//第二个文件目录
    String File1;//第一个文件
    String File2;//第二个文件
    int point;//保存当前活动窗口
    
    private static final long serialVersionUID = 1L;
    JPanel myPanel1 = new JPanel();//面板1.1
    JPanel myPanel2 =new JPanel();//面板2.1
    JPanel myPanel3 =new JPanel();//面板3
    JPanel myPanel4 =new JPanel();//面板4
    JTextPane text1=new JTextPane();
    JTextPane text2=new JTextPane();
    
    JButton bt1 = new JButton("打开文档1");
    JButton bt2 = new JButton("打开文档2");
    JButton bt3 = new JButton("核对");
   
    JPopupMenu jm = new JPopupMenu();//右键菜单
    JMenuItem copy = new JMenuItem("复制");//菜单项
    JMenuItem path = new JMenuItem("粘贴");  
    JMenuItem cut = new JMenuItem("剪切");
    JMenuItem help = new JMenuItem("帮助");
    JMenuItem about = new JMenuItem("关于");
    
    JScrollPane scro1=new JScrollPane(text1);//添加滚动条
    JScrollPane scro2=new JScrollPane(text2);//添加滚动条
    
    JSplitPane jSplitPane =new JSplitPane();//设定为拆分布局
    JSplitPane jSplitPane2 =new JSplitPane();//设定为拆分布局
    JSplitPane jSplitPane3 =new JSplitPane();//设定为拆分布局
    
    public Windowm()
    {
        setVisible(true);
        jm.add(copy);
        jm.add(path);
        jm.add(cut);
        jm.add(help);
        jm.add(about);
         
        myPanel3.add(bt1);
        myPanel3.add(bt2);
        myPanel4.add(bt3);
         
        this.setTitle("欢迎使用文本比较软件");
        this.setBounds(100, 100, 600, 500);
        jSplitPane.setContinuousLayout(true);//操作箭头，重绘图形
        jSplitPane2.setContinuousLayout(true);//操作箭头，重绘图形
        jSplitPane3.setContinuousLayout(true);//操作箭头，重绘图形
        
        jSplitPane2.setOrientation(JSplitPane.VERTICAL_SPLIT);//垂直方向
        jSplitPane.setOrientation(JSplitPane.HORIZONTAL_SPLIT);//水平方向
        jSplitPane3.setOrientation(JSplitPane.VERTICAL_SPLIT);//垂直方向
        
        myPanel1.setBorder(BorderFactory.createLineBorder(Color.green));
        myPanel2.setBorder(BorderFactory.createLineBorder(Color.red));
        myPanel3.setBorder(BorderFactory.createLineBorder(Color.yellow));
        myPanel4.setBorder(BorderFactory.createLineBorder(Color.blue));

        jSplitPane.setLeftComponent(scro1);//左右布局中添加组件 ，面板1
        jSplitPane.setRightComponent(scro2);//左右布局中添加组件 ，面板2

        jSplitPane2.setTopComponent(myPanel3);//上下布局中添加组件 ，面板1
        jSplitPane2.setBottomComponent(jSplitPane);//上下布局中添加组件 ，面板1
        
        jSplitPane3.setTopComponent(jSplitPane2);
        jSplitPane3.setBottomComponent(myPanel4);
        
        jSplitPane.setDividerSize(5);//设置分割线的宽度
        jSplitPane2.setDividerSize(5);//设置分割线的宽度
        jSplitPane3.setDividerSize(5);//设置分割线的宽度
        setContentPane(jSplitPane3);//设置为父模块
  
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        copy.addActionListener(new ActionListener()//窗口监听
            {
                public void actionPerformed(ActionEvent e4)//菜单项
                {
                       try{    
                        text1.copy();
                        text2.copy();
                    }catch(Exception e1){
                    }
                }
               }
        );
        path.addActionListener(new ActionListener()//窗口监听
            {
                public void actionPerformed(ActionEvent e4)//菜单项
                {
                       try{    
                           if(point==1)//由于有两个窗口，因此设计point来确定粘贴在某个窗口
                               text1.paste();
                           else
                            text2.paste();
                    }catch(Exception e1){
                    }
                }
               }
        );
        cut.addActionListener(new ActionListener()//窗口监听
            {
                public void actionPerformed(ActionEvent e4)//菜单项
                {
                    try{    
                           text1.cut();
                           text2.cut();
                    }catch(Exception e1){
                    }
                }
            }
        );
        help.addActionListener(new ActionListener()//窗口监听
            {
                public void actionPerformed(ActionEvent e4)//菜单项
                {
                    JOptionPane.showMessageDialog(null,"使用方法：输入或者点击打开两个文本，按核对键进行比较\n红色表示匹配失败，蓝色表示多余，黑色为正常匹配文本","使用指南",JOptionPane.PLAIN_MESSAGE);             
                }
            }
        );
        about.addActionListener(new ActionListener()//窗口监听
            {
                public void actionPerformed(ActionEvent e4)//菜单项
                {
                    JOptionPane.showMessageDialog(null,"原创：将军\nQQ 2910001378@qq.com \n人生苦短，欢迎转载","将军原创",JOptionPane.PLAIN_MESSAGE);             
                }
            }
        );
        
        text1.addMouseListener(new MouseAdapter() {
            public void mouseClicked(MouseEvent e) {
                if (e.getButton() == MouseEvent.BUTTON3) {      
                    jm.show(text1, e.getX(), e.getY()); // 弹出菜单
                    point=1;
                }
            }
        });
        
        text2.addMouseListener(new MouseAdapter() {
            public void mouseClicked(MouseEvent e) {
                if (e.getButton() == MouseEvent.BUTTON3) {      
                    jm.show(text2, e.getX(), e.getY()); // 弹出菜单
                    point=2;
                }
            }
        });
        
        jSplitPane.addComponentListener(new ComponentAdapter() {//拖动窗口监听
            public void componentResized(ComponentEvent e) {  
                jSplitPane.setDividerLocation(jSplitPane3.getWidth()/2-7);//设置第一条宽度  
            }  
        }); 
       jSplitPane2.setDividerLocation(50);//设定分割线的距离左边的位置
       jSplitPane3.addComponentListener(new ComponentAdapter() {//拖动窗口监听 
           public void componentResized(ComponentEvent e) {  
               jSplitPane3.setDividerLocation(jSplitPane3.getHeight()-50);//设置第三条高度 
           }  
       }); 
       
    bt1.addActionListener(new ActionListener()//窗口监听
        {
            public void actionPerformed(ActionEvent e4)//菜单项
            {
                try{    
                    text1.setText("");
                    JFileChooser jfc=new JFileChooser();
                    jfc.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES );
                    jfc.showDialog(new JLabel(), "选择");
                    File file=jfc.getSelectedFile();
                    path1=file.getAbsolutePath();//获取文件绝对地址    
                    new Read_File(path1);
                    File1= Read_File.getFile();
                    SimpleAttributeSet attrset = new SimpleAttributeSet();
                    StyleConstants.setFontSize(attrset,16);//设置字号
                    Document docs=text1.getDocument();
                    docs.insertString(docs.getLength(), File1, attrset);
                }catch(Exception e1){
                }
            }
        }
    );
    bt2.addActionListener(new ActionListener()//窗口监听
        {
            public void actionPerformed(ActionEvent e4)//菜单项
            {
                try{    
                    text2.setText("");
                    JFileChooser jfc=new JFileChooser();
                    jfc.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES );
                    jfc.showDialog(new JLabel(), "选择");
                    File file=jfc.getSelectedFile();
                    path2=file.getAbsolutePath();//获取文件绝对地址        
                    new Read_File(path2);
                    File2= Read_File.getFile();
                    SimpleAttributeSet attrset = new SimpleAttributeSet();
                    StyleConstants.setFontSize(attrset,16);//设置字号
                    Document docs=text2.getDocument();
                    docs.insertString(docs.getLength(), File2, attrset);
                }catch(Exception e1){
                    System.out.println("选择文件出错");
                }
            }
        }
    );
    bt3.addActionListener(new ActionListener()//窗口监听
        {
            public void actionPerformed(ActionEvent e4)//菜单项
            {
                try{
                    String dnas1;//算法处理之后的字符串1
                    String dnas2;//算法处理之后的字符串2
                    String jtp1;//JTextpane的内容1
                    String jtp2;//JTextpane的内容2
                    int len=0;    //处理后的字符串长度
                                
                    jtp1=text1.getText();//获取窗口文本
                    jtp2=text2.getText();
                    text1.setText("");//清空之前内容
                    text2.setText("");
                    Document docs1=text1.getDocument();
                    Document docs2=text2.getDocument();                            
                    DNASequence dna=new DNASequence(jtp1,jtp2);//通过构造方法传递参数
                    dna.runAnalysis();
                    dna.traceback();
                    dnas1=dna.getString1();//获取处理后的字符串
                    dnas2=dna.getString2();
                    char[] s = dnas1.toCharArray();//字符串转Char数组
                    char[] p = dnas2.toCharArray();
                    len=dnas1.length();
                    SimpleAttributeSet set2 = new SimpleAttributeSet();//设置一个属性
                    StyleConstants.setFontSize(set2,16);//设置字号
                    for(int i=0;i){
                        if(s[i]==‘-‘){
                            StyleConstants.setForeground(set2,Color.BLUE);//设置文字颜色
                            docs2.insertString(docs2.getLength(),String.valueOf(p[i]), set2);
                        }else if(p[i]==‘-‘){
                            StyleConstants.setForeground(set2,Color.BLUE);//设置文字颜色
                            docs1.insertString(docs1.getLength(),String.valueOf(s[i]), set2);
                        }else if(s[i]==p[i]){
                            StyleConstants.setForeground(set2,Color.black);//设置文字颜色
                            docs1.insertString(docs1.getLength(),String.valueOf(s[i]), set2);
                            docs2.insertString(docs2.getLength(),String.valueOf(p[i]), set2);
                        }else if(s[i]!=p[i]){                                StyleConstants.setForeground(set2,Color.red);//设置文字颜色
                            docs1.insertString(docs1.getLength(),String.valueOf(s[i]), set2);
                            docs2.insertString(docs2.getLength(),String.valueOf(p[i]), set2);
                        }else{
                            System.out.print("考虑更多颜色");
                        }
                    }
                    
                }catch(Exception e1){        
                    System.out.println("选择文件2出错");
                }
            }
        }
    );     
    }
}

import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.InputStreamReader;

public class Read_File {
     static  String fileName;
    
    public  Read_File(String str){
            fileName=str;    
    }
    public static String getFile(){
        BufferedReader br = null;
        StringBuffer sb = null;
        try {
            br = new BufferedReader(new InputStreamReader(new FileInputStream(fileName),"utf-8")); //这里可以控制编码
            sb = new StringBuffer();
            String line = null;
            while((line = br.readLine()) != null) {
                sb.append(line);
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            try {
                br.close();
            } catch (Exception e) {
                e.printStackTrace();
            }    
        }
        String data = new String(sb); //StringBuffer ==> String
        System.out.println("数据为==> " + data);
        return data;
    }
    
//    public static void main(String[] args) {
//        new Read_File("1");
//    }
}

//https://codereview.stackexchange.com/questions/182601/optimizing-needleman-wunsch-algorithm-in-java

public class DNASequence {
    protected final String seq_1, seq_2;    //要分析的两个序列
    public int alignmentScore;              //使用Needleman-Wunsch算法
    protected Node[][] matrix;              //存储分数和缩进
    protected final int matchScore, mismatchScore, indel;

    //用于打印DNA序列分析的字符串
    String top = "";        // Sequence 1
    String bottom = "";     // Sequence 2

    public DNASequence(String s1, String s2) {
        //我使用一个■作为缓冲,这样序列字符串正确对齐
        // 在矩阵中使用缩进和分数。
        ScoreScheme s = new ScoreScheme(2, -1, -2);  
        seq_1 = "\u25A0" + s1;
        seq_2 = "\u25A0" + s2;
        matchScore = s.matchScore;
        mismatchScore = s.mismatchScore;
        indel = s.indel;

        matrix = new Node[seq_1.length()][seq_2.length()];
        for (int i = 0; i )
            matrix[i][0] = new Node(i * indel, i, 0);

        for (int i = 0; i )
            matrix[0][i] = new Node(i * indel, 0, i);
    }

    //辅助方法，帮助决定使用哪种匹配/不匹配得分。
    protected int score(int i, int j) {
        if (seq_1.charAt(i) == seq_2.charAt(j))
            return matchScore;
        else
            return mismatchScore;
    }

    //在本地级别上实现Needleman-Wunsch algo的Helper方法。
    protected Node match(int i, int j) {
        Node s1,s2,s3;
        s1 = new Node(matrix[i-1][j-1].score + score(i, j), i, j);
        s2 = new Node(matrix[i-1][j].score + indel, i, j);
        s3 = new Node(matrix[i][j-1].score + indel, i, j);

        Node largest = new Node(Math.max(s1.score, Math.max(s2.score, s3.score)), i, j);
        if (s1.compareTo(largest) == 0)
            largest.prev = matrix[i-1][j-1];
        else if(s2.compareTo(largest) == 0)
            largest.prev = matrix[i-1][j];
        else
            largest.prev = matrix[i][j-1];
        return largest;
    }

    public Node runAnalysis() {
        for (int i = 1; i ) {
            for (int j = 1; j ){
                matrix[i][j] = match(i, j);
            }
        }
        alignmentScore = matrix[seq_1.length()-1][seq_2.length()-1].score;
        return matrix[seq_1.length()-1][seq_2.length()-1];
    }

    //辅助方法，逐步构建分析结果。它将返回
    //“尾巴”，因为我们可能还需要做一些工作。
    protected Node traceHelper(Node curr) {
        while (curr.prev != null) {
            if (curr.i - curr.prev.i == 1 && curr.j - curr.prev.j == 1){    // If the path leads diagonal
                boolean x = seq_1.charAt(curr.i) == seq_2.charAt(curr.j) ? true : false;
                if(x){
                    top = seq_1.charAt(curr.i) +top;
                    bottom = seq_2.charAt(curr.j) +bottom;
                }else{
                    top = seq_1.charAt(curr.i) + top;
                    bottom = seq_2.charAt(curr.j) + bottom;
                }
            }else if (curr.i - curr.prev.i == 1){               //如果这条路通向山顶
                top = seq_1.charAt(curr.i) + top;
                bottom = "-" +  bottom;                     //如果这条路通向左边
            }else if (curr.j - curr.prev.j == 1){
                top = "-" + top;
                bottom = seq_2.charAt(curr.j) +  bottom;
            }
            curr = curr.prev;
        }
        return curr;
    }

//从矩阵的最后一个节点回溯到第一个索引节点。
    public void traceback() {
        Node curr = matrix[seq_1.length()-1][seq_2.length()-1];
        curr = traceHelper(curr);
        while (curr.i != 0 || curr.j != 0) {
            if (curr.i != 0 && curr.j == 0){
                curr.prev = matrix[curr.i-1][curr.j];
                curr = traceHelper(curr);
            }else if (curr.i == 0 && curr.j != 0) {
                curr.prev = matrix[curr.i][curr.j-1];
                curr = traceHelper(curr);
            }
        }

    //打印DNA序列分析
//        System.out.println(top);
//        System.out.println(bottom);
    }
    public String getString1(){
        return top;
    }
    public String getString2(){
        return bottom;
    }    

}
class Node implements Comparable{
    int i, j;
    int score;
    Node prev;

    public Node(int score, int x, int y) {
        this.i = x;
        this.j = y;
        this.score = score;
        this.prev = null;
    }
    public int compareTo(Node n) {
        return this.score - n.score;
    }
    public String toString() {
        return ""+score;
    }
}

class ScoreScheme {
    int matchScore, mismatchScore, indel;
    public ScoreScheme(int m1, int m2, int i) {
        matchScore = m1;
        mismatchScore = m2;
        indel = i;
    }
}