Commons-IO 的 IOUtils 的几个简单例子

[代码] java代码

01 //使用JDK的方法
02 InputStream in = new URL( "http://www.oschina.net" ).openStream();
03 try {
04    InputStreamReader inR = new InputStreamReader( in );
05    BufferedReader buf = new BufferedReader( inR );
06    String line;
07    while ( ( line = buf.readLine() ) != null ) {
08      System.out.println( line );
09    }
10 } finally {
11    in.close();
12 }

[代码] java代码

1 // 使用 IOUtils 的方法
2 InputStream in = new URL( "http://www.oschina.net" ).openStream();
3 try {
4    System.out.println( IOUtils.toString( in ) );
5 } finally {
6    IOUtils.closeQuietly(in);
7 }

[代码] java代码

1 //读取文件所有行
2 File file = new File("/commons/io/project.properties");
3 List<String> lines = FileUtils.readLines(file, "UTF-8");

[代码] 文件路径处理

1 String filename = "C:/commons/io/../lang/project.xml";
2 String normalized = FilenameUtils.normalize(filename);
3 // result is "C:/commons/lang/project.xml"

[代码] 磁盘剩余空间

1 long freeSpace = FileSystemUtils.freeSpace("C:/");