createnew.java

在java环境下开发的一个笔记记录及管理工具

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package stageexperiment;
import java.io.IOException; 
import javax.swing.*;
import java.awt.event.*;    
import java.io.File;
import java.io.FileOutputStream;
import java.io.PrintWriter;
import java.util.Date;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
 *
 * @author lina
 */
public class CreateNew extends JFrame
{   
     String  t;
     String  w;
     String  f;
     String  p;
     String k;
     String r;
     Date date=new Date(System.currentTimeMillis());
     JLabel  topic;
    JLabel  writer;
    JLabel  filename;
    JLabel  path;
    JLabel keyword;
    JLabel remark;
    JTextField jTextFieldtopic;
    JTextField jTextFieldwriter;
    JTextField jTextFieldfilename;
    JTextField jTextFieldpath;
    JTextField jTextFieldkeyword;
    JTextField jTextFieldremark;
    JButton save;
    JButton exit;
    JTextArea text;
    Notes n=new Notes();
    String tt;
  public CreateNew(final AllNotes an,final Main m) throws IOException
  {    
        this.setLayout(null);//设置布局管理器为null
        File file=new File("笔记文件");
        if(!file.exists()) file.mkdir();
    	//初始化各个控件
    	topic=new JLabel("题目");
    	writer=new JLabel("作者");
    	filename=new JLabel("笔记文件名");
        path=new JLabel("路径");
        keyword=new JLabel("关键词"); 
        remark=new JLabel("备注"); 
    	jTextFieldtopic=new JTextField();
        jTextFieldwriter=new JTextField();
        jTextFieldfilename=new JTextField();
        jTextFieldpath=new JTextField(file.getPath());
        jTextFieldkeyword=new JTextField();
        jTextFieldremark=new JTextField();
        text=new JTextArea();
    	save= new JButton("保存");
    	exit=new JButton("取消");
        text.setMaximumSize(text.getPreferredSize());
        text.setLineWrap(true);

    	//设置控件位置
    	this.topic.setBounds(10,10,80,20); 
        this.filename.setBounds(10,50,80,20);
    	this.keyword.setBounds(10,130,80,20);
        this.path.setBounds(10,170,80,20);
    	this.remark.setBounds(10,210,80,20);
    	this.writer.setBounds(10,90,80,20);
        this.jTextFieldtopic.setBounds(100,10,100,20);
    	this.jTextFieldfilename.setBounds(100,50,100,20);
        this.jTextFieldkeyword.setBounds(100,130,100,20);
        this.jTextFieldpath.setBounds(100,170,100,20);
        this.jTextFieldremark.setBounds(100,210,100,20);
        this.jTextFieldwriter.setBounds(100,90,100,20);
        this.save.setBounds(30, 250, 100, 30);
        this.exit.setBounds(150, 250, 100, 30);
        text.setBounds(260,10,330,300);
    	//将控件添加到面板上
    	this.add(topic);
        this.add(filename);
    	this.add(keyword);
    	this.add(path);
    	this.add(remark);
    	this.add(writer);
    	this.add(jTextFieldtopic);                
        this.add(jTextFieldfilename);
    	this.add(jTextFieldkeyword);
    	this.add(jTextFieldpath);
    	this.add(jTextFieldremark);
    	this.add(jTextFieldwriter);
    	this.add(save);
        this.add(exit);
        this.add(text);
    	this.setBounds(330,300,610,350); 
    	this.setTitle("创建新笔记"); 
    	this.setVisible(true);
    save.addActionListener(new ActionListener()
     {public void actionPerformed(ActionEvent e)
       {  int i;
          t=jTextFieldtopic.getText().trim();if(t.equals("")) t=null;
          w=jTextFieldwriter.getText().trim();if(w.equals("")) w=null;
          f=jTextFieldfilename.getText().trim();if(f.equals("")) f=null;
          p=jTextFieldpath.getText().trim();if(p.equals("")) p=null;
          k=jTextFieldkeyword.getText().trim();if(k.equals("")) k=null;
          r=jTextFieldremark.getText().trim();if(r.equals("")) r=null;
          tt=text.getText(); 
         // System.out.println(tt);
          if(f==null)
             { JOptionPane.showMessageDialog(null,"文件名不能为空","错误",JOptionPane.INFORMATION_MESSAGE);i=1;} 
          else 
          { if(p==null)
               { JOptionPane.showMessageDialog(null,"路径不能为空","错误",JOptionPane.INFORMATION_MESSAGE);i=1;}
            else
            { i=0;
                for(int j=0;j<an.getLength();j++) 
               {  String s1,s2;
                  File ff1=new File(an.all[j].path,an.all[j].filename);
                  File ff2=new File(p,f);
                  s1=ff1.getAbsolutePath();s2=ff2.getAbsolutePath();
                 if(f.equals(an.all[j].filename)&&s1.equals(s2))
                  {i=1;
                   JOptionPane.showMessageDialog(null,"笔记文件重名，请重新输入笔记文件名或路径","文件已存",JOptionPane.INFORMATION_MESSAGE);
                    jTextFieldfilename.setText("");t="";
                   } 
               }
              }
            }
     if(i==0)
       {  n.topic=t;
          n.filename=f;
          n.ftime=date.toString();
          n.keyword=k;
          n.path=p;
          n.remark=r;
          n.writer=w;
           JOptionPane.showMessageDialog(null,"新建成功","新建完毕",JOptionPane.INFORMATION_MESSAGE);  
         File p=new File(n.path);
         if(!p.isDirectory()){
            JOptionPane.showMessageDialog(null ,"路径非法","错误",JOptionPane.INFORMATION_MESSAGE);} 
        else
          {
             try {
                        if (!p.exists()) { p.mkdir();  }
                        File file = new File(p, n.filename);
                        file.createNewFile();
                        PrintWriter putfile=new PrintWriter(new FileOutputStream(file));
                        putfile.print(tt);
                        putfile.close();
                        m.allnotes.add(n);
                    } catch (IOException ex)
                         {
                          Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
                         }
        }
           setVisible(false);
       }
      }
    });
   exit.addActionListener(new ActionListener()
     {public void actionPerformed(ActionEvent e)
      {   
          setVisible(false);
      }
    });
  }
}