Java读取文件(以后继续添加)

package cf.java.study.java.io;import java.io.File;import java.io.FileInputStream;import org.apache.commons.io.FileUtils;import org.apache.commons.lang.StringUtils;import org.junit.After;import org.junit.Before;import org.junit.Test;public class FileTests {@Beforepublic void setUp() throws Exception {}@Afterpublic void tearDown() throws Exception {}@Beforepublic void startTest() {System.out.println(" Test Start " + StringUtils.repeat("-", 10));}@Afterpublic void endTest() {System.out.println('/n' + StringUtils.repeat("-", 10) + " Test End /n");}@Testpublic void readDir() throws Exception {File file = new File("/");System.out.println("file: /n" + file);// list the items in the directoryfor (String str : file.list()) {System.out.println(str);}}@Testpublic void readFile() throws Exception {File file = new File("./test");// make a FileInputStream with the file instanceFileInputStream fis = new FileInputStream(file);// read the bytes from fis// it is the end of file when read() returns -1for (int re = 0; re >= 0; re = fis.read()) {System.out.print((char)re);}fis.close();}@Testpublic void readFileByApache() throws Exception {// are you crazy?? can you be more simplier?System.out.print(FileUtils.readFileToString(new File("./test")));}}