分析日志.log

 /**
     * 读取日志，找出嫌疑人
     *
     * @param logFile 日志文件
     * @throws
     */
 
@Test
    public void testLog() {
        List<String> paths = getFileName("C:\\Users\\cowain\\Desktop\\新建文件夹");

        for (int i = 0; i < paths.size(); i++) {
            File tmpLogFile = new File(paths.get(i));

            try {
                //指定文件可读可写
                final RandomAccessFile randomFile = new RandomAccessFile(tmpLogFile, "r");


                String tmp = "";
                String pre = "";

                while ((tmp = randomFile.readLine()) != null) {
                    String sb=new String();
                    String txt = new String(tmp.getBytes("ISO8859-1"));
                    if(txt.contains("CWA2179")){
                        sb+=System.getProperty("line.separator");
                        sb+=pre;
                        sb+=System.getProperty("line.separator");
                        sb+=txt;

                        try {
                            String path = "C:\\Users\\cowain\\Desktop\\王总日志.txt";
                            BufferedWriter out = new BufferedWriter(
                                    new OutputStreamWriter(new FileOutputStream(path,true)));
                            out.write(sb+" ");
                            out.close();
                        } catch (IOException e) {
                            e.printStackTrace();
                        }
                    }
                    pre=txt;
                }
            } catch (IOException e) {
                e.printStackTrace();
            }

        }


        System.out.println("结束");

    }

   

    private List<String> getFileName(String filePath){
        List<String> list=new ArrayList<>();
        if(null!=filePath&&!"".equals(filePath)){
            File file = new File(filePath);
            //判断文件或目录是否存在
            if(!file.exists()){
                log.info("【"+filePath + " not exists】");
            }
            //获取该文件夹下所有的文件
            File[] fileArray= file.listFiles();
            File fileName = null;
            for(int i =0;i<fileArray.length;i++){
                fileName = fileArray[i];
                list.add(fileName.getAbsolutePath());

            }
        }
        return list;
    }