1 commons-IO
1.1 FileUtils
- readFileToString(File file); 读取文件内容，返回一个String
- writeStringToFile(File file, String content); 将字符串写入file中
- copyFile(File srcFile, FIle destFile); 文件复制
- copyDirectoryToDirectory(File srcDir,File destDir); 文件夹复制
demo:
public class CommonsDemo {
String path = "";
@Before
public void getPath(){
File file = new File("");
path = file.getAbsolutePath()+"/src/com/looc/demo10/commonsIODemo";
}
@Test
public void commWrit() throws IOException {
FileUtils.writeStringToFile(new File(path+"/测试.txt"),"这里是测试第一行","utf-8",true);
}
@Test
public void commRead() throws IOException{
String readStr = FileUtils.readFileToString(new File(path+"/测试.txt"),"utf-8");
System.out.println(readStr);
}
@Test
public void commCopyFile() throws IOException{
FileUtils.copyFile(new File("C:\\Users\\81022\\Downloads\\commons-io-2.6.jar"),new File(path+"/test.jar"));
}
@Test
public void commCopyDirectory() throws IOException{
FileUtils.copyDirectory(new File(""),new File(""));
}
@Test
public void commDemo() throws IOException{
FileUtils.forceMkdir(new File("C:\\Users\\81022\\Downloads\\aaa\\xxx"));
FileUtils.moveFileToDirectory(new File(""),new File(""),true);
FileUtils.deleteDirectory(new File(""));
}
}
