JMeter获取CSV文件的行数

用到的jmeter组件：beanshell Sampler

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;

String pzRowNum1;
int pzRowNum=0;
try
{
	BufferedReader br=new BufferedReader(new FileReader("文件路径"));
	String tmpStr="";
	
	while((tmpStr=br.readLine())!=null)
	{
		pzRowNum++;
	}
	pzRowNum=pzRowNum-1;
}
catch (IOException ioe)
{
	ioe.printStackTrace();
}
vars.put("pzRowNum1",String.valueOf(pzRowNum));