import java.io.File;

import java.io.InputStreamReader;

import java.io.BufferedReader;

import java.io.BufferedWriter;

import java.io.FileInputStream;

import java.io.FileWriter;

import java.util.ArrayList;

import java.util.List;

    private String stringLine="";

    public static int getPrice(int k)

    {

    //        /* 读入TXT文件 */

        String pathname = "D:\\\\Java\\\\Jmeter\\\\apache-jmeter-5.0\\\\bin\\\\DaiShouFuLuRuYongHu.txt"; // 绝对路径或相对路径都可以，这里是绝对路径

        File filename = new File(pathname); // 要读取以上路径的input。txt文件

        InputStreamReader reader = new InputStreamReader(new FileInputStream(filename)); // 建立一个输入流对象reader

        BufferedReader br = new BufferedReader(reader); // 建立一个对象，它把文件内容转成计算机能读懂的语言

        List line = new ArrayList();

        List lineint = new ArrayList();

        int i=0;

        String[] s = br.readLine().split(",");

        for(i =0 ; i<s.length; i++){

            line.add(s[i]);

        }

        for (i = 0;i<line.size();i++)

        {

            //去掉多余的空格

            String b = line.get(i).toString().trim();

            //转成int并存储

            lineint.add(Integer.parseInt(b)+1);

            System.out.println(i+"I:"+lineint.get(i));

        }

        //转成字符串

        stringLine = "";

        for (i = 0;i<line.size();i++)

        {

            //转成字符

            String b = String.valueOf(lineint.get(i));

            //转成String并存储

            if(i!=0)

            {

                stringLine += ",";

            }

            stringLine+=b;

        }

        System.out.println(stringLine);

return lineint.get(k);

    }   

public static void setTxt()

{

    System.out.println("输入中");

       File writename = new File("D:\\\\Java\\\\Jmeter\\\\apache-jmeter-5.0\\\\bin\\\\DaiShouFuLuRuYongHu.txt");// 相对路径，如果没有则要建立一个新的output。txt文件

        //writename.createNewFile(); // 创建新文件

        BufferedWriter out = new BufferedWriter(new FileWriter(writename));

        System.out.println("输入中");

        out.write(stringLine); // \r\n即为换行

        out.flush(); // 把缓存区内容压入文件

        out.close(); // 最后记得关闭文件

}

//vars.get("${merchantName}");

int cc = getPrice(0);

String aa = vars.get("merchantName");

aa+=cc;

vars.put("merchantName",aa);

int dd = getPrice(1);

String ddd = "";

ddd+=dd;

vars.put("SPid",ddd);

System.out.println(stringLine);

setTxt();

System.out.println("写入文件成功");