读取text文本工具类

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package com.avic.custom.controller.us.st;import java.io.BufferedInputStream;import java.io.BufferedReader;import java.io.File;import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.IOException;import java.io.InputStreamReader;import java.util.ArrayList;import java.util.List;import com.alibaba.fastjson.JSON;/** * 读取text文本工具类 * */public class ReadTextUtils{   /**    * 读取text文件内容    * 一行一行进行读取操作    * @param filePath 文件路径    * @return List 每一行的日志记录    */   public static List<String> readTextToList(String filePath){   List<String> lists=new ArrayList<String>();   try {File file=new File(filePath);BufferedInputStream bis = new BufferedInputStream(new FileInputStream(file));BufferedReader buf=new BufferedReader(new BufferedReader(new InputStreamReader(bis,"utf-8"),5*1024*1024));String s = null;while ((s=buf.readLine())!=null) { if(s!=null){  //取出日志文件里json字符串 s=s.substring(s.indexOf("{\""), s.lastIndexOf("}")+1); lists.add(s); }}buf.close();} catch (FileNotFoundException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}   return lists;   }      public static void main(String[] args) {   List<String> readTextToList = ReadTextUtils.readTextToList("D:/logs/app.log");   for (String string : readTextToList) {System.out.println(string);   }   System.out.println("集合长度"+readTextToList.size());  }}

app.log日志文件

14:07:15.949 [qtp2027897550-46] INFO  com.avic.custom.controller.us.st.OperationLogController - {"operationJsp":"点赞页面","operation":67,"deviceSystem":1013333,"IP":"127.0.0.1","operationTime":"2016-03-07 20:20:30","deviceModel":"iPhone6s","device":"15dfab3fe6e396b0f2e5","operationRemark":"为商品520点赞了","network":"5G","operator":"注册","city":"北京朝阳区"}[com.avic.custom.controller.us.st.OperationLogController.operationLog(OperationLogController.java:87)] [2017-04-27 14:08:55,830] : {"operationJsp":"点赞页面","operation":67,"deviceSystem":1013333,"IP":"127.0.0.1","operationTime":"2016-03-07 20:20:30","deviceModel":"iPhone6s","device":"15dfab3fe6e396b0f2e5","operationRemark":"为商品520点赞了","network":"5G","operator":"注册","city":"北京朝阳区"}[com.avic.custom.controller.us.st.OperationLogController.operationLog(OperationLogController.java:87)] [2017-04-27 14:09:12,787] : {"operationJsp":"点赞页面","operation":67,"deviceSystem":1013333,"IP":"127.0.0.1","operationTime":"2016-03-07 20:20:30","deviceModel":"iPhone6s","device":"15dfab3fe6e396b0f2e5","operationRemark":"为商品520点赞了","network":"5G","operator":"注册","city":"北京朝阳区"}[com.avic.custom.controller.us.st.OperationLogController.operationLog(OperationLogController.java:87)] [2017-04-27 14:09:17,508] : {"operationJsp":"点赞页面","operation":67,"deviceSystem":1013333,"IP":"127.0.0.1","operationTime":"2016-03-07 20:20:30","deviceModel":"iPhone6s","device":"15dfab3fe6e396b0f2e5","operationRemark":"为商品520点赞了","network":"5G","operator":"注册","city":"北京朝阳区"}14:11:06.418 [qtp1269291543-46] INFO  com.avic.custom.controller.us.st.OperationLogController - {"operationJsp":"点赞页面","operation":67,"deviceSystem":1013333,"IP":"127.0.0.1","operationTime":"2016-03-07 20:20:30","deviceModel":"iPhone6s","device":"15dfab3fe6e396b0f2e5","operationRemark":"为商品520点赞了","network":"5G","operator":"注册","city":"北京朝阳区"}[com.avic.custom.controller.us.st.OperationLogController.operationLog(OperationLogController.java:87)] [2017-04-27 14:13:29,117] : {"operationJsp":"点赞页面","operation":67,"deviceSystem":1013333,"IP":"127.0.0.1","operationTime":"2016-03-07 20:20:30","deviceModel":"iPhone6s","device":"15dfab3fe6e396b0f2e5","operationRemark":"为商品520点赞了","network":"5G","operator":"注册","city":"北京朝阳区"}[com.avic.custom.controller.us.st.OperationLogController.operationLog(OperationLogController.java:87)] [2017-04-27 14:13:35,281] : {"operationJsp":"点赞页面","operation":67,"deviceSystem":1013333,"IP":"127.0.0.1","operationTime":"2016-03-07 20:20:30","deviceModel":"iPhone6s","device":"15dfab3fe6e396b0f2e5","operationRemark":"为商品520点赞了","network":"5G","operator":"注册","city":"北京朝阳区"}[com.avic.custom.controller.us.st.OperationLogController.operationLog(OperationLogController.java:87)] [2017-04-27 14:16:17,442] : {"operationJsp":"点赞页面","operation":67,"deviceSystem":1013333,"IP":"127.0.0.1","operationTime":"2016-03-07 20:20:30","deviceModel":"iPhone6s","device":"15dfab3fe6e396b0f2e5","operationRemark":"为商品520点赞了","network":"5G","operator":"注册","city":"北京朝阳区"}[com.avic.custom.controller.us.st.OperationLogController.operationLog(OperationLogController.java:87)] [2017-04-27 14:18:56,604] : {"operationJsp":"点赞页面","operation":67,"deviceSystem":1013333,"IP":"127.0.0.1","operationTime":"2016-03-07 20:20:30","deviceModel":"iPhone6s","device":"15dfab3fe6e396b0f2e5","operationRemark":"为商品520点赞了","network":"5G","operator":"注册","city":"北京朝阳区"}[com.avic.custom.controller.us.st.OperationLogController.operationLog(OperationLogController.java:87)] [2017-04-27 14:19:46,539] : {"operationJsp":"点赞页面","operation":67,"deviceSystem":1013333,"IP":"127.0.0.1","operationTime":"2016-03-07 20:20:30","deviceModel":"iPhone6s","device":"15dfab3fe6e396b0f2e5","operationRemark":"为商品520点赞了","network":"5G","operator":"注册","city":"北京朝阳区"}[com.avic.custom.controller.us.st.OperationLogController.operationLog(OperationLogController.java:87)] [2017-04-27 14:20:16,863] : {"operationJsp":"点赞页面","operation":67,"deviceSystem":1013333,"IP":"127.0.0.1","operationTime":"2016-03-07 20:20:30","deviceModel":"iPhone6s","device":"15dfab3fe6e396b0f2e5","operationRemark":"为商品520点赞了","network":"5G","operator":"注册","city":"北京朝阳区"}[com.avic.custom.controller.us.st.OperationLogController.operationLog(OperationLogController.java:88)] [2017-04-27 14:30:16,203] : {"operationJsp":"点赞页面","operation":67,"deviceSystem":1013333,"IP":"127.0.0.1","operationTime":"2016-03-07 20:20:30","userId":6,"deviceModel":"iPhone6s","device":"15dfab3fe6e396b0f2e5","operationRemark":"为商品520点赞了","network":"5G","operator":"注册","city":"北京朝阳区"}[com.avic.custom.controller.us.st.OperationLogController.operationLog(OperationLogController.java:88)] [2017-04-27 14:31:25,998] : {"operationJsp":"点赞页面","operation":67,"deviceSystem":1013333,"IP":"127.0.0.1","operationTime":"2016-03-07 20:20:30","userId":6,"deviceModel":"iPhone6s","device":"15dfab3fe6e396b0f2e5","operationRemark":"为商品520点赞了","network":"5G","operator":"注册","city":"北京朝阳区"}[com.avic.custom.controller.us.st.OperationLogController.operationLog(OperationLogController.java:88)] [2017-04-27 14:31:56,531] : {"operationJsp":"点赞页面","operation":67,"deviceSystem":1013333,"IP":"127.0.0.1","operationTime":"2016-03-07 20:20:30","userId":"6","deviceModel":"iPhone6s","device":"15dfab3fe6e396b0f2e5","operationRemark":"为商品520点赞了","network":"5G","operator":"注册","city":"北京朝阳区"}[com.avic.custom.controller.us.st.OperationLogController.operationLog(OperationLogController.java:88)] [2017-04-27 14:32:35,393] : {"operationJsp":"点赞页面","operation":67,"deviceSystem":1013333,"IP":"127.0.0.1","operationTime":"2016-03-07 20:20:30","userId":"6","deviceModel":"iPhone6s","device":"15dfab3fe6e396b0f2e5","operationRemark":"为商品520点赞了","network":"5G","operator":"注册","city":"北京朝阳区"}[com.avic.custom.controller.us.st.OperationLogController.operationLog(OperationLogController.java:88)] [2017-04-27 14:33:29,995] : {"operationJsp":"点赞页面","operation":67,"deviceSystem":1013333,"IP":"127.0.0.1","operationTime":"2016-03-07 20:20:30","userId":"6","deviceModel":"iPhone6s","device":"15dfab3fe6e396b0f2e5","operationRemark":"为商品520点赞了","network":"5G","operator":"注册","city":"北京朝阳区"}[com.avic.custom.controller.us.st.OperationLogController.operationLog(OperationLogController.java:88)] [2017-04-27 14:34:21,177] : {"operationJsp":"点赞页面","operation":67,"deviceSystem":1013333,"IP":"127.0.0.1","operationTime":"2016-03-07 20:20:30","deviceModel":"iPhone6s","device":"15dfab3fe6e396b0f2e5","operationRemark":"为商品520点赞了","network":"5G","operator":"注册","city":"北京朝阳区"}

运行结果：

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