Java 的 FileFilter文件过滤,readline读行操作

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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;    }}
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