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【Java】逐行读取文件每一行

作者:尤胜荣 / 发布于2014/12/30/ 823


	import org.apache.commons.io.FileUtils;
	import org.apache.commons.io.LineIterator;
	
	import java.io.File;
	import java.io.IOException;
	import java.util.List;
	
	public class AjavaReadFileToListSample {
	 public static void main(String[] args) {
	 MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest)request;
	 try {
	 // 获得文件：
	 MultipartFile file = multipartRequest.getFile("file");
	/* LineIterator lineIterator = IOUtils.lineIterator(file.getInputStream(), Charset.forName("UTF8"));
	 while (lineIterator.hasNext()) {
	 String str = lineIterator.nextLine();
	 listCode.add(str);
	 }*/
	 listCode = IOUtils.readLines(file.getInputStream());
	 } catch (IOException e) {
	 e.printStackTrace();
	 }
	 //创建文件对象
	 File file = new File("C:/codes.txt");
	 try {
	 //使用readLines读取每一行，生成List
	 List<String> contents = FileUtils.readLines(file);
	
	 //遍历输出contents
	 for (String line : contents) {
	 System.out.println(line);
	 }
	 } catch (IOException e) {
	 e.printStackTrace();
	 }
	
	 LineIterator it =null;
	 try {
	 //打印文件的所有行
	 it = FileUtils.lineIterator(file, "UTF-8");
	 while (it.hasNext()) {
	 String line = it.nextLine();
	 System.out.println(line);
	 /// do something with line
	 }
	 } catch (IOException e) {
	 e.printStackTrace();
	 } finally {
	 LineIterator.closeQuietly(it);
	 }
	 }
	
	}

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　读取文件　

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