apache commons-io 实例

359025439

package cn.apache.io;  
import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.URL;
import java.util.List;
import org.apache.commons.io.FileSystemUtils;
import org.apache.commons.io.FileUtils;
import org.apache.commons.io.FilenameUtils;
import org.apache.commons.io.IOUtils;
import org.junit.Test;
/**
* ClassName:ApacheIO <br/>
* Function: ApacheIO. <br/>
* Reason:   ApacheIO. <br/>
* Date:     2014年2月5日 下午5:58:47 <br/>
* @author   zhangzhaoyu
* @version   
* @since    JDK 1.7
* @see      
*/
public class ApacheIO {
//@Test
public void testIO() {
try {
InputStream stream = new URL("http://jakarta.apache.org").openStream();
InputStreamReader reader = new InputStreamReader(stream);
BufferedReader bufferedReader = new BufferedReader(reader);
String line;
while ((line = bufferedReader.readLine()) != null) {
System.out.println(line);
}
} catch (IOException e) {
e.printStackTrace();
}
}
public void testIOApache() throws Exception {
InputStream in = new URL( "http://jakarta.apache.org" ).openStream();
try {
System.out.println( IOUtils.toString( in ) );
} finally {
IOUtils.closeQuietly(in);
}
}

public void testFileUtils() {
File file = new File("E:\\BaiduYunDownload\\lucene\\example\\jdbc日期类型.txt");
try {
//String content = FileUtils.readFileToString(file, "utf-8");
List<String> lines = FileUtils.readLines(file, "utf8");
System.out.println(lines);
} catch (IOException e) {
e.printStackTrace();
}
}
public void testFilenameUtils() {
String filename = "C:/commons/io/../lang/project.xml";
String normalized = FilenameUtils.normalize(filename);
System.out.println(normalized);
}
@Test
public void testFileSystemUtils() {
try {
long freeSpace = FileSystemUtils.freeSpaceKb("D:/");
System.out.println(freeSpace/(1024*1024));
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}