怎么把TextArea中的换行符写入到文件中？求大神！！！！

Question

问题是这样的：
我在写个记事本，然后哪个内容面板是用TextArea做的，那么当我写好了要保存文件的时候直接通过.getText()获取到字符串，然后将字符直接通过FileOutputStream.write()函数写入到文件中，但是我查看文件的时候发现里面的内容根本就没有换行。求大神帮忙，怎么把换行符写入啊？？

Answer 1

你自己读取一下看看textarea里面的换行符是什么字符，然后替换一下，文件里的换行符是"\r\n"

Answer 2

String temp = text1.getText();
                text2.setText(temp);
                
                File f = new File("d:/test/TextToTxt.txt");
                try
                {
                    BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(f)));
                    bw.write(temp);
                    bw.close();
                }
                catch (FileNotFoundException e1)
                {
                    // TODO Auto-generated catch block
                    e1.printStackTrace();
                }
                catch (IOException e2)
                {
                    // TODO Auto-generated catch block
                    e2.printStackTrace();
                }也是TextArea，这样操作可以换行。

Answer 3

怎么打出来呢？我直接输出到控制台上，它是可以换行的。看不到它的换行符是什么查看字符的ascii，不是要你输出到控制台啊。将字符转换成int看。

Answer 4

(⊙o⊙)…  不可以的。
这是我的样例，比较粗糙。在左侧TextArea中输入几行（通过Enter换行），写入d盘的文件，没问题的呀！要不LZ对比试试，看看有啥区别？
import java.awt.TextArea;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStreamWriter;import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class StrInTextArea
    extends JFrame
{    public StrInTextArea()
    {
        super();
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        
        setBounds(100, 200, 500, 500);        JPanel p = new JPanel();
        final TextArea text1 = new TextArea(4, 20);
        JButton button = new JButton("提交");
        final TextArea text2 = new TextArea(4, 20);        p.add(text1);
        p.add(button);
        p.add(text2);
        p.setVisible(true);
        add(p);        button.addMouseListener(new MouseListener()
        {            public void mouseClicked(MouseEvent e)
            {
                String temp = text1.getText();
                text2.setText(temp);
                
                File f = new File("d:/test/TextToTxt.txt");
                try
                {
                    BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(f)));
                    bw.write(temp);
                    bw.close();
                }
                catch (FileNotFoundException e1)
                {
                    // TODO Auto-generated catch block
                    e1.printStackTrace();
                }
                catch (IOException e2)
                {
                    // TODO Auto-generated catch block
                    e2.printStackTrace();
                }
            }            public void mouseEntered(MouseEvent e)
            {
                // TODO Auto-generated method stub            }            public void mouseExited(MouseEvent e)
            {
                // TODO Auto-generated method stub            }            public void mousePressed(MouseEvent e)
            {
                // TODO Auto-generated method stub            }            public void mouseReleased(MouseEvent e)
            {
                // TODO Auto-generated method stub            }        });
        
        setVisible(true);
    }
    
    public static void main(String[] args)
    {
        new StrInTextArea();
    }
}

Answer 5

(⊙o⊙)…  不可以的。
这是我的样例，比较粗糙。在左侧TextArea中输入几行（通过Enter换行），写入d盘的文件，没问题的呀！要不LZ对比试试，看看有啥区别？
import java.awt.TextArea;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStreamWriter;import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class StrInTextArea
    extends JFrame
{    public StrInTextArea()
    {
        super();
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        
        setBounds(100, 200, 500, 500);        JPanel p = new JPanel();
        final TextArea text1 = new TextArea(4, 20);
        JButton button = new JButton("提交");
        final TextArea text2 = new TextArea(4, 20);        p.add(text1);
        p.add(button);
        p.add(text2);
        p.setVisible(true);
        add(p);        button.addMouseListener(new MouseListener()
        {            public void mouseClicked(MouseEvent e)
            {
                String temp = text1.getText();
                text2.setText(temp);
                
                File f = new File("d:/test/TextToTxt.txt");
                try
                {
                    BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(f)));
                    bw.write(temp);
                    bw.close();
                }
                catch (FileNotFoundException e1)
                {
                    // TODO Auto-generated catch block
                    e1.printStackTrace();
                }
                catch (IOException e2)
                {
                    // TODO Auto-generated catch block
                    e2.printStackTrace();
                }
            }            public void mouseEntered(MouseEvent e)
            {
                // TODO Auto-generated method stub            }            public void mouseExited(MouseEvent e)
            {
                // TODO Auto-generated method stub            }            public void mousePressed(MouseEvent e)
            {
                // TODO Auto-generated method stub            }            public void mouseReleased(MouseEvent e)
            {
                // TODO Auto-generated method stub            }        });
        
        setVisible(true);
    }
    
    public static void main(String[] args)
    {
        new StrInTextArea();
    }
}你那个是不行的，我这么写了：
int j = 0, i = 0;
char[] chars = data.toCharArray();
for (i = 0; i < chars.length; i++) {
if ((int) chars[i] == 10) {
bfw.write(chars, j, i - j);
bfw.write(WRAP_DELIMITER);
j = i;
bfw.flush();
}
}
bfw.write(chars, j, i - j);
bfw.flush();

Answer 6

File file=new File(file1.getAbsolutePath()+"\\"+day+miu+".txt");
BufferedWriter bos=null;
try {
bos=new BufferedWriter(
new FileWriter(file));
String result=tfa.jta.getText();
String[] temp=result.split("[\\r\\n]");

//把数据写到文件中
for (int i = 0; i < temp.length; i++) {
bos.write(temp[i]);
bos.write("\r\n");
}

} catch (FileNotFoundException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (IOException e2) {
// TODO Auto-generated catch block
e2.printStackTrace();
} finally {
if(bos!=null){
try {
bos.close();
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
}
}关键 String result=tfa.jta.getText();
        String[] temp=result.split("[\\r\\n]");
我以前写的 测试过OK