Java 的 FileFilter文件过滤,readline读行操作

package com.cjonline.foundation.evisa;



import java.io.BufferedReader;

import java.io.File;

import java.io.FileFilter;

import java.io.FileInputStream;

import java.io.IOException;

import java.io.InputStreamReader;

import java.math.BigDecimal;



public class Test {

    

    public static void main(String[] args) throws Exception {

        //文件过滤器,文件路径可以使用D:\\pressTest\\test绝对路径,也可以用src/test。

        File[] files = new File("src").listFiles(new FileFilter() {

            public boolean accept(File arg0) {

                if(arg0.getName().endsWith(".txt")){//选择txt文件

                    return true;

                }

                return false;

            }

        });

        FileInputStream is =null;    //输入流读取文件

        BufferedReader dr =null;    //读行

        for (File file : files) {

            System.out.println("---------【 file name : "+ file.getName() +"】----------");

            is =new FileInputStream(file);

            dr=new BufferedReader(new InputStreamReader(is)); 

            String[] strings = new String[]{"Total transferred:","Requests per second:","[ms] (mean)","Time per request:",

                    "Transfer rate:","Failed requests:","Write errors:"};

            BigDecimal[] BigDecimals = calPress(dr);

            int i=0;

            for (BigDecimal BigDecimal : BigDecimals) {

                System.out.println(strings[i]+"        "+BigDecimal);

                i++;

            }

            System.out.println();

        }

        dr.close();

        is.close();

    }



    private static BigDecimal[] calPress(BufferedReader dr)

            throws IOException {

        BigDecimal[] res = new BigDecimal[]{BigDecimal.ZERO,BigDecimal.ZERO,BigDecimal.ZERO,BigDecimal.ZERO

                ,BigDecimal.ZERO,BigDecimal.ZERO,BigDecimal.ZERO} ;

        String totalTrans;

        while((totalTrans = dr.readLine()) != null){

            if (totalTrans.startsWith("Total transferred:")) {

                String[] st = totalTrans.split(" ");

                BigDecimal value = BigDecimal.valueOf(Double.valueOf(st[st.length-2]));

                res[0]=res[0].add(value);

            }

            if (totalTrans.startsWith("Requests per second:")) {

                String[] st = totalTrans.split(" ");

                BigDecimal value = BigDecimal.valueOf(Double.valueOf(st[st.length-3]));

                res[1]=res[1].add(value);

            }

            if (totalTrans.endsWith("[ms] (mean)")) {

                String[] st = totalTrans.split(" ");

                BigDecimal value = BigDecimal.valueOf(Double.valueOf(st[st.length-3]));

                res[2]=res[2].add(value);

            }

            if (totalTrans.startsWith("Time per request:") && !totalTrans.endsWith("[ms] (mean)")) {

                String[] st = totalTrans.split(" ");

                BigDecimal value = BigDecimal.valueOf(Double.valueOf(st[st.length-7]));

                res[3]=res[3].add(value);

            }

            if (totalTrans.startsWith("Transfer rate:")) {

                String[] st = totalTrans.split(" ");

                BigDecimal value = BigDecimal.valueOf(Double.valueOf(st[st.length-3]));

                res[4]=res[4].add(value);

            }

            if(totalTrans.startsWith("Failed requests:")){

                String[] st = totalTrans.split(" ");

                BigDecimal value = BigDecimal.valueOf(Double.valueOf(st[st.length-1]));

                res[5]=res[5].add(value);

            }

            if(totalTrans.startsWith("Write errors:")){

                String[] st = totalTrans.split(" ");

                BigDecimal value = BigDecimal.valueOf(Double.valueOf(st[st.length-1]));

                res[6]=res[6].add(value);

            }



        }

        return res;

    }

}