java读写文件

[weinideai]

我现在想把
Bufferedreader br=new Bufferedreader();
string line="";
while((line=br.readline())!=null)
{
//添加代码处
}
想把每次line的内容添加到一个文本文件里。

[JAVAJKjiankeJK]

if (newFile.canWrite()) {
try {
FileOutputStream out = new FileOutputStream(newFile, true);
out.write(s.toString().getBytes());
out.close();
} catch (FileNotFoundException e) {
log.error("文件找不到" + e.getMessage());
e.printStackTrace();
return false;
} catch (IOException e) {
log.error("写文件失败");
e.printStackTrace();
return false;
}

s为变量既要输入的内容

[JerryZhou_]

刚刚写了个测试、
public class TestData {
public static void ReadData() throws SQLException {
try {
FileReader read = new FileReader("E:/test1.txt");
BufferedReader br = new BufferedReader(read);
String row;

File f = new File("E://test.txt");
if (f.exists()) {
f.delete();
}
f.createNewFile();
FileOutputStream fos = new FileOutputStream(f);
PrintWriter pw = new PrintWriter(fos);
while ((row = br.readLine()) != null) {
pw.write(row);
pw.println();
pw.flush();
}
fos.close();
pw.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}

public static void main(String[] args) throws Exception {
ReadData();
}
}

[蒙面客]

[Quote=引用 2 楼 jerry_bj 的回复:]
刚刚写了个测试、
public class TestData {
public static void ReadData() throws SQLException {
try {
FileReader read = new FileReader("E:/test1.txt");
BufferedReader br = new BufferedReader(read);
String ……
[/Quote]
++