多线程同步查找包含特定内容的文件

拼搏现实的明天。 2022-05-24 06:41 192阅读 0赞

package com.zdst.scs.business.hystric.checkflow;
    
    import java.io.*;
    
    public class FileTest {
            public static void main(String[] args){
                findFile("E:\\dubbo");
            }
            public static void findFile(String path){
                //获得目录下的文件列表
                File[] fileList = new File(path).listFiles();
                //目录下不为空
                if(fileList.length > 0){
                    //遍历文件数组,如果是目录,递归调用本方法,如果是文件,判断是不是.java结尾,然后调用读文件方法判断
                    for(File file : fileList){
                        if(file.isDirectory()){
                            findFile(file.getAbsolutePath());
                        }else{
                            if(file.getName().endsWith(".java")){
                                threadTest thread = new threadTest(file,"log");
                                new Thread(thread).start();
                            }
                        }
                    }
                }
            }
    }
     class threadTest implements Runnable{
        private File file;
        private String key;
        public  threadTest(File file,String key) {
            this.file = file;
            this.key = key;
        }
        @Override
        public void run() {
            BufferedReader bufferedReader;
            try {
                //获取文件的读取流
                bufferedReader = new BufferedReader(new FileReader(file));
                StringBuffer sb = new StringBuffer();
                String line = "";
                //读取文件并追加到StringBuffer上
                while((line = bufferedReader.readLine()) != null){
                    sb.append(line);
                }
                //匹配是否存在特定的关键字
                if(sb.toString().contains(key)){
                    System.out.println(file.getName());
                }
            } catch (FileNotFoundException e) {
                e.printStackTrace();
            }catch (IOException e) {
                e.printStackTrace();
            }
            
        }
        
    }