读取文件流

BufferedReader br = null;
BufferedWriter bw = null;
String pdfFilePath = "/applyly/";
// 创建不同的文件夹目录
File file = new File(pdfFilePath);
try
{
// 判断文件夹是否存在
if (!file.exists())
{
// 如果文件夹不存在，则创建新的的文件夹
file.mkdirs();
}
ClassPathResource cpr = new ClassPathResource(
"fdfs_client.properties");
String fis = cpr.getClassLoader()
.getResource("fdfs_client.properties").getPath();
br = new BufferedReader(new InputStreamReader(new FileInputStream(
fis), "UTF-8"));
bw = new BufferedWriter(
new OutputStreamWriter(new FileOutputStream(pdfFilePath
+ "fdfs_client.properties"), "UTF-8"));
int i = 0;
String str = "";
while ((str = br.readLine()) != null)
{
if (i == 0)// 读取第一行，将前三个字节去掉，重新new个String对象
{
byte[] bytes = str.getBytes("UTF-8");
str = new String(bytes, 3, bytes.length - 3);
bw.write(str);
bw.write("\n");
i++;
} else
bw.write(str);
bw.write("\n");
}
} catch (Exception e)
{
logger.error(e);
} finally
{
if (br != null)
{
try
{
br.close();
} catch (IOException e)
{
logger.error(e);
}
}
if (bw != null)
{
try
{
bw.close();
} catch (IOException e)
{
logger.error(e);
}
}
}

读取文件流

原文：https://www.cnblogs.com/guilf/p/10522611.html