小程序2

---

Paste_Image.png

Paste_Image.png

/*
 * 我的日记本：
 * 创建日记本文件  ————》特定的命名格式       
 *     File createFile();   返回创建好的日及文件，将最后的文件内容保存在该文件内。
 *     
 * 创建一个面板，可以设置背景及文字。具有富文本格式。
 *     可以运用 swing 组件， 及jTextArea对象 对富文本的支持。
 *     
 */
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Toolkit;
import java.io.*;
import java.util.*;
import javax.swing.*;
import javax.swing.plaf.metal.OceanTheme;
import javax.swing.text.BadLocationException;
import javax.swing.text.SimpleAttributeSet;
import javax.swing.text.StyleConstants;
import javax.swing.text.StyledDocument;
public class MyDiary {
    private Calendar c=Calendar.getInstance();
    String name;
    public MyDiary(){
        
    }
    public MyDiary(String name){
        this.name=name;
    }
    public String getName(){
        return name;
    }
    @SuppressWarnings("resource")
    public void writeFile() {
        String name_JFrame="day"+c.get(Calendar.DAY_OF_MONTH)+"-"+name;
        JFrame frame=new JFrame(name_JFrame);
        //OceanTheme theme=new OceanTheme();
        JTextPane text=new JTextPane();
        StyledDocument doc=text.getStyledDocument();
        SimpleAttributeSet wordStyle=new SimpleAttributeSet();
        
        text.setBackground(Color.lightGray);
        StyleConstants.setForeground(wordStyle,Color.BLACK);
        StyleConstants.setFontSize(wordStyle, 20);
        StyleConstants.setFontFamily(wordStyle, "宋体");
        //StyleConstants.setBackground(wordStyle, Color.GREEN);
        text.setEditable(true);
        text.setText(".LOG\r\n");
        doc.setCharacterAttributes(24, 30, wordStyle, true);
        frame.add(new JScrollPane(text),BorderLayout.CENTER);
        Dimension screenSize=Toolkit.getDefaultToolkit().getScreenSize();
        frame.setSize(screenSize.width/2, (int) (screenSize.height/1.5));
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setVisible(true);
        BufferedWriter br=null;
        Scanner sca=null;

        try{
            br=new BufferedWriter(new FileWriter(createFile(),true));
            sca=new Scanner(new File("my.stx"));
            while(sca.hasNextLine()){
                br.write(sca.nextLine());
            }
            /*try{
                br.write(doc.getText(0,doc.getLength()));
            }
            catch(BadLocationException ex){
                throw new RuntimeException("存储失败"+ex.getMessage());
            }*/
            //if(!frame.isValid())
                br.flush();
        }
        catch(IOException e){
            throw new RuntimeException("写入失败"+e.getMessage());
        }
        finally{
            try{
                if(br!=null)
                    br.close();
            }
            catch(IOException e){
                throw new RuntimeException("操作流失败"+e.getMessage());
            }
            
        }
    }
    
    public String createFile(){  
        String s1="E:/无知/每日一文/";//绝对路径
        String s2=month()+c.get(Calendar.YEAR);//文件夹
        String s3="/day"+c.get(Calendar.DAY_OF_MONTH)+"-"+name;//文件名
        String s4=".txt";//文件后缀名
        String path=s1+s2+s3+s4;
        String dir=s1+s2;
        File f=null;
        BufferedWriter bw=null;
        try{
            f=new File(dir);
            if(!f.exists()) f.mkdirs();
            f=new File(path);
            f.createNewFile();
            bw=new BufferedWriter(new FileWriter(f,true));
            bw.write(".LOG");
            bw.newLine();
            bw.close();
            return path;
        }
        
        catch(IOException e){
            System.out.println("创建文件失败");
            System.out.print(e.toString());
            return path;
        }
        finally{
            try{
                if(bw!=null)
                    bw.close();
            }
            catch(IOException e){
                System.out.println("发生错误");
            }
        }
    }
    public String month(){
        switch(c.get(Calendar.MONTH)){
          case 0:return "January";
          case 1:return "February";
          case 2:return "March";
          case 3:return "April";
          case 4:return "May";
          case 5:return "June";
          case 6:return "July";
          case 7:return "August";
          case 8:return "September";
          case 9:return "October";
          case 10:return "November";
          case 11:return "December";
          default :return "0";
        }
    }
}

---