//方法有以下几种
import
java.io.BufferedWriter;
import
java.io.FileOutputStream;
import
java.io.FileWriter;
import
java.io.IOException;
import
java.io.OutputStreamWriter;
import
java.io.RandomAccessFile;
/**
* 描述:追加内容到文件末尾
* @author Administrator
*
*/
public
class
WriteStreamAppend {
/**
* 追加文件:使用FileOutputStream,在构造FileOutputStream时,把第二个参数设为true
*
* @param fileName
* @param content
*/
public
static
void
method1(String file, String conent) {
BufferedWriter out =
null
;
try
{
out =
new
BufferedWriter(
new
OutputStreamWriter(
new
FileOutputStream(file,
true
)));
out.write(conent);
}
catch
(Exception e) {
e.printStackTrace();
}
finally
{
try
{
out.close();
}
catch
(IOException e) {
e.printStackTrace();
}
}
}
/**
* 追加文件:使用FileWriter
*
* @param fileName
* @param content
*/
public
static
void
method2(String fileName, String content) {
try
{
FileWriter writer =
new
FileWriter(fileName,
true
);
writer.write(content);
writer.close();
}
catch
(IOException e) {
e.printStackTrace();
}
}
/**
* 追加文件:使用RandomAccessFile
*
* @param fileName
* 文件名
* @param content
* 追加的内容
*/
public
static
void
method3(String fileName, String content) {
try
{
RandomAccessFile randomFile =
new
RandomAccessFile(fileName,
"rw"
);
long
fileLength = randomFile.length();
randomFile.seek(fileLength);
randomFile.writeBytes(content);
randomFile.close();
}
catch
(IOException e) {
e.printStackTrace();
}
}
public
static
void
main(String[] args) {
System.out.println(
"start"
);
method1(
"c:/test.txt"
,
"追加到文件的末尾"
);
System.out.println(
"end"
);
}