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首页 > 资讯 > 后端开发 > JAVA >java 逐行读取文件(读取文件每一行、按行读取文件)附带示例代码
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java 逐行读取文件(读取文件每一行、按行读取文件)附带示例代码

javaIO 2023-09-11 15:09:22 428人浏览 薄情痞子
摘要

BufferedReader 最快的读取每一行 @Test public void bufferReaderTest() { try (BufferedReader buffere

BufferedReader

最快的读取每一行

@Test    public void bufferReaderTest() {        try (BufferedReader bufferedReader = new BufferedReader(new FileReader("D:\\aa.txt"))) {            String line;            while ((line = bufferedReader.readLine())  != null) {                // 处理每一行数据 .....            }        } catch (Exception e) {            log.error(e.getMessage(), e);        }    }

Scanner

相比较Scanner慢一点

 @Test    public void scannerTest() {        try (Scanner scanner = new Scanner(new File("D:\\aa.txt"))) {            while (scanner.hasNextLine()) {                // 处理每一行数据 .....                String line = scanner.nextLine();            }        } catch (Exception e) {            log.error(e.getMessage(), e);        }    }

RandoMaccessFile

行数达到一定规模，使用此方法读取会非常慢

@Test    public void randomAccessFileTest() {        try (RandomAccessFile accessFile = new RandomAccessFile("D:\\aa.txt", "r")) {            String line;            while ((line = accessFile.readLine()) != null) {                // 处理每一行数据 .....            }        } catch (Exception e) {            log.error(e.getMessage(), e);        }    }

Files

一次把所有数据都读到内存中，当文件非常大时，会消耗掉内存资源导致程序崩掉，文件规模小推荐使用

@Test    public void filesTest() {        try {            List<String> lines = Files.readAllLines(Paths.get("D:\\aa.txt"));            lines.forEach(line -> {                // 处理每一行数据 .....            });        } catch (Exception e) {            log.error(e.getMessage(), e);        }    }

示例代码

统计每一行日志ip出现的次数

package io;import lombok.extern.slf4j.Slf4j;import org.junit.Test;  import java.io.BufferedReader;import java.io.File;import java.io.FileReader;import java.io.RandomAccessFile;import java.NIO.file.Files;import java.nio.file.Paths;import java.util.HashMap;import java.util.List;import java.util.Map;import java.util.Scanner;@Slf4jpublic class ReadLineTest {    private final String FILE_NAME = "D:\\aa.txt";    private Map<String, Integer> StringMap = new HashMap<>();     @Test    public void bufferReaderTest() {        try (BufferedReader bufferedReader = new BufferedReader(new FileReader("D:\\aa.txt"))) {            String line;            while ((line = bufferedReader.readLine())  != null) {                // 处理每一行数据 .....                processLines(line);            }        } catch (Exception e) {            log.error(e.getMessage(), e);        }        print("BufferedReader");    }    @Test    public void scannerTest() {        try (Scanner scanner = new Scanner(new File(FILE_NAME))) {            while (scanner.hasNextLine()) {                // 处理每一行数据 .....                String line = scanner.nextLine();                processLines(line);            }        } catch (Exception e) {            log.error(e.getMessage(), e);        }        print("Scanner");    }    @Test    public void randomAccessFileTest() {        try (RandomAccessFile accessFile = new RandomAccessFile(FILE_NAME, "r")) {            String line;            while ((line = accessFile.readLine()) != null) {                // 处理每一行数据 .....                processLines(line);            }        } catch (Exception e) {            log.error(e.getMessage(), e);        }        print("RandomAccessFile");    }    @Test    public void filesTest() {        try {            List<String> lines = Files.readAllLines(Paths.get(FILE_NAME));//            lines.forEach(line -> {//                // 处理每一行数据 .....//                processLines(line);//            });            // 处理每一行数据 .....,方法引用更简洁            lines.forEach(this::processLines);        } catch (Exception e) {            log.error(e.getMessage(), e);        }        print("Files.readAllLines");    }    private void print(String name) {        log.info("************* {} *******************", name);        StringMap.forEach((k, v) -> {            if (v != 1) {               log.info("ip: {} count: {}", k, v);            }        });        StringMap.clear();    }    private void processLines(String line) {        String[] subLine = line.split(" ");        String ip = subLine[subLine.length - 1];        if (StringMap.containsKey(ip)) {            Integer integer = StringMap.get(ip);            StringMap.put(ip, integer + 1);        } else {            StringMap.put(ip, 1);        }    }}

测试数据

2023-04-14 09:50:51,211 INFO  [springContextShutdownHook] c.i.w.i.websocketServiceImpl.onClosing(496) : connection close 192.168.8.1722023-04-14 09:50:51,211 INFO  [SprinGContextShutdownHook] c.i.w.i.WEBSocketServiceImpl.onClosing(496) : connection close 172.31.106.642023-04-14 09:50:51,212 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.642023-04-14 09:50:51,212 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.692023-04-14 09:50:51,212 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.1592023-04-14 09:50:51,212 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.1612023-04-14 09:50:51,213 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.93.682023-04-14 09:50:51,213 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.1862023-04-14 09:50:51,213 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.93.742023-04-14 09:50:51,213 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.642023-04-14 09:50:51,214 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.642023-04-14 09:50:51,214 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.952023-04-14 09:50:51,214 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.872023-04-14 09:50:51,214 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.93.1272023-04-14 09:50:51,215 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.912023-04-14 09:50:51,215 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.93.1152023-04-14 09:50:51,216 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.1982023-04-14 09:50:51,216 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.1052023-04-14 09:50:51,216 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.602023-04-14 09:50:51,216 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.602023-04-14 09:50:51,217 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.772023-04-14 09:50:51,217 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.93.1252023-04-14 09:50:51,217 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.602023-04-14 09:50:51,217 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.1732023-04-14 09:50:51,218 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.1292023-04-14 09:50:51,218 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.2082023-04-14 09:50:51,218 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.2112023-04-14 09:50:51,218 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.632023-04-14 09:50:51,219 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.1702023-04-14 09:50:51,219 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.1952023-04-14 09:50:51,219 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.1812023-04-14 09:50:51,219 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.1802023-04-14 09:50:51,220 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.612023-04-14 09:50:51,220 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.2012023-04-14 09:50:51,220 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.902023-04-14 09:50:51,220 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.93.262023-04-14 09:50:51,221 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.2002023-04-14 09:50:51,221 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.1262023-04-14 09:50:51,221 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.1922023-04-14 09:50:51,221 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.962023-04-14 09:50:51,221 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.93.592023-04-14 09:50:51,222 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.93.502023-04-14 09:50:51,222 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.642023-04-14 09:50:51,222 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.642023-04-14 09:50:51,223 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.1252023-04-14 09:50:51,223 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.822023-04-14 09:50:51,223 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.1502023-04-14 09:50:51,223 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.2092023-04-14 09:50:51,224 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.1702023-04-14 09:50:51,224 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.93.512023-04-14 09:50:51,224 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.1522023-04-14 09:50:51,224 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.93.212023-04-14 09:50:51,224 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.712023-04-14 09:50:51,225 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.882023-04-14 09:50:51,225 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.1882023-04-14 09:50:51,225 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.1872023-04-14 09:50:51,225 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.812023-04-14 09:50:51,226 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.1552023-04-14 09:50:51,226 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.93.572023-04-14 09:50:51,226 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.1482023-04-14 09:50:51,226 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.1562023-04-14 09:50:51,226 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.1542023-04-14 09:50:51,227 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.1462023-04-14 09:50:51,227 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.1602023-04-14 09:50:51,227 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.602023-04-14 09:50:51,227 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.93.1232023-04-14 09:50:51,227 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.602023-04-14 09:50:51,228 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.1842023-04-14 09:50:51,228 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.1512023-04-14 09:50:51,228 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.1822023-04-14 09:50:51,229 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.93.1132023-04-14 09:50:51,229 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.892023-04-14 09:50:51,229 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.1912023-04-14 09:50:51,229 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.2052023-04-14 09:50:51,229 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.602023-04-14 09:50:51,230 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.742023-04-14 09:50:51,230 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.1272023-04-14 09:50:51,230 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.1572023-04-14 09:50:51,230 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.1652023-04-14 09:50:51,231 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.93.1222023-04-14 09:50:51,231 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.1622023-04-14 09:50:51,231 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.1832023-04-14 09:50:51,231 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.2022023-04-14 09:50:51,232 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.1662023-04-14 09:50:51,232 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.642023-04-14 09:50:51,234 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.2102023-04-14 09:50:51,234 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.932023-04-14 09:50:51,234 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.1712023-04-14 09:50:51,234 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.2042023-04-14 09:50:51,235 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.2072023-04-14 09:50:51,235 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.1992023-04-14 09:50:51,235 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.1242023-04-14 09:50:51,235 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.642023-04-14 09:50:51,236 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.1232023-04-14 09:50:51,236 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.1072023-04-14 09:50:51,236 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.1692023-04-14 09:50:51,236 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.762023-04-14 09:50:51,236 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.942023-04-14 09:50:51,237 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.1762023-04-14 09:50:51,237 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.93.242023-04-14 09:50:51,237 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.1772023-04-14 09:50:51,237 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.93.232023-04-14 09:50:51,238 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.1492023-04-14 09:50:51,238 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.752023-04-14 09:50:51,238 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.622023-04-14 09:50:51,239 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.642023-04-14 09:50:51,239 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.642023-04-14 09:50:51,239 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.702023-04-14 09:50:51,239 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.1972023-04-14 09:50:51,239 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.602023-04-14 09:50:51,240 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.1742023-04-14 09:50:51,240 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.93.1142023-04-14 09:50:51,240 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.93.1212023-04-14 09:50:51,240 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.1892023-04-14 09:50:51,241 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.1062023-04-14 09:50:51,241 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.93.1262023-04-14 09:50:51,241 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.1532023-04-14 09:50:51,241 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.1672023-04-14 09:50:51,242 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.602023-04-14 09:50:51,242 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.1902023-04-14 09:50:51,242 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.1752023-04-14 09:50:51,242 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.2062023-04-14 09:50:51,243 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.1082023-04-14 09:50:51,243 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.93.1122023-04-14 09:50:51,243 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.1942023-04-14 09:50:51,243 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.93.252023-04-14 09:50:51,244 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.1852023-04-14 09:50:51,244 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.1792023-04-14 09:50:51,244 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.602023-04-14 09:50:51,244 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.642023-04-14 09:50:51,245 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.93.1172023-04-14 09:50:51,245 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.642023-04-14 09:50:51,245 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.1932023-04-14 09:50:51,245 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.922023-04-14 09:50:51,245 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.1472023-04-14 09:50:51,246 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.93.1162023-04-14 09:50:51,246 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.1012023-04-14 09:50:51,246 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.1962023-04-14 09:50:51,246 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.2032023-04-14 09:50:51,246 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.862023-04-14 09:50:51,247 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.1632023-04-14 09:50:51,247 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.1782023-04-14 09:50:51,247 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.93.672023-04-14 09:50:51,247 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.972023-04-14 09:50:51,248 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.1452023-04-14 09:50:51,248 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.1582023-04-14 09:50:51,248 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.93.1242023-04-14 09:50:51,248 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.93.1112023-04-14 09:50:51,248 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.93.992023-04-14 09:50:51,249 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.106.1282023-04-14 09:50:51,249 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.1682023-04-14 09:50:51,249 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.93.1282023-04-14 09:50:51,249 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 172.31.93.222023-04-14 09:50:51,252 INFO  [SpringContextShutdownHook] c.i.w.i.WebSocketServiceImpl.onClosing(496) : connection close 192.168.8.164

来源地址：https://blog.csdn.net/qq_40965479/article/details/130194793

--结束END--

本文标题: java 逐行读取文件(读取文件每一行、按行读取文件)附带示例代码

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