在测试过程中经常会遇到一些接口中的参数需要进行处理时间格式，比如当前时间、当前日期，当月一号，下个月一号等等，下面我们就使用Jmeter元件BeanShell 取样器调用Java代码进行处理，首先在jmeter的目录D:\apache-jmeter-5.1.1\bin下新建DateUtil.java，如下图：
代码如下：
import java.text.Format;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;

public class DateUtil
{
public static String getdodyTime()
{
Date date=new Date();

    Format f = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");String todaytime=f.format(date);return todaytime;}public static String getTodyData()
{Date date=new Date();Format f = new SimpleDateFormat("yyyy-MM-dd");String today=f.format(date);return today;
}public static String getTomorrowDate()
{Date date=new Date();Format f = new SimpleDateFormat("yyyy-MM-dd");Calendar c = Calendar.getInstance();c.setTime(date);c.add(Calendar.DAY_OF_MONTH, 1);// 今天+1天Date tomorrow_date = c.getTime();String tomorrow=f.format(tomorrow_date);return tomorrow;
}public static String getYesterdayDate()
{Date date=new Date();Format f = new SimpleDateFormat("yyyy-MM-dd");Calendar c = Calendar.getInstance();c.setTime(date);c.add(Calendar.DAY_OF_MONTH, -1);// 今天-1天Date yesterday_date = c.getTime();String yesterday=f.format(yesterday_date);return yesterday;
}public static String getTomorrowTime()
{Date date=new Date();Format f = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");Calendar c = Calendar.getInstance();c.setTime(date);c.add(Calendar.DAY_OF_MONTH, 1);// 今天+1天Date tomorrow_date = c.getTime();String tomorrowtime=f.format(tomorrow_date);return tomorrowtime;
}public static String getTomorrowTimeSubtract()
{Date date=new Date();Format g = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");Calendar e = Calendar.getInstance();e.setTime(date);e.add(Calendar.DAY_OF_MONTH, -60);// 今天-60天Date tomorrow_date_subtract = e.getTime();String tomorrowtimesubtract=g.format(tomorrow_date_subtract);return tomorrowtimesubtract;
}public static String getTomorrowTimeSubtractDate()
{Date date=new Date();Format g = new SimpleDateFormat("yyyy-MM-dd");Calendar e = Calendar.getInstance();e.setTime(date);e.add(Calendar.DAY_OF_MONTH, -60);// 今天-60天Date tomorrow_date = e.getTime();String tomorrowtimesubtractdate=g.format(tomorrow_date);return tomorrowtimesubtractdate;
}public static String getTomorrowTimeadd()
{Date date=new Date();Format g = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");Calendar e = Calendar.getInstance();e.setTime(date);e.add(Calendar.DAY_OF_MONTH, 10);// 今天+10天Date tomorrow_date = e.getTime();String tomorrowtimeadd=g.format(tomorrow_date);return tomorrowtimeadd;
}public static String getnowYear()
{Date date=new Date();Format year = new SimpleDateFormat("yyyy");//当前年Calendar e = Calendar.getInstance();e.setTime(date);Date year_date = e.getTime();String nowYear=year.format(year_date );return nowYear;
}public static String getnowMonth()
{Date date=new Date();Format month = new SimpleDateFormat("MM");//当前月Calendar e = Calendar.getInstance();e.setTime(date);Date month_date = e.getTime();String nowMonth=month.format(month_date);return nowMonth;
}public static String getDateMonth()
{Date date=new Date();Format month_format = new SimpleDateFormat("yyyy-MM-01");Calendar cal = Calendar.getInstance();cal.setTime(date);cal.set(Calendar.DAY_OF_MONTH,0);////本月第一天Date month = cal.getTime();String month_date=month_format.format(month);return month_date;
}public static String getNextDateMonth()
{Date date=new Date();Format month_next_format = new SimpleDateFormat("yyyy-MM-01");Calendar cal = Calendar.getInstance();cal.setTime(date);cal.set(Calendar.MONDAY,1);//下个月初Date month_next = cal.getTime();String month_next_date=month_next_format.format(month_next);return month_next_date;
}public static String getDateWeek()
{Date date=new Date();Format week_format = new SimpleDateFormat("yyyy-MM-dd");Calendar cal = Calendar.getInstance();cal.setTime(date);cal.add(Calendar.DAY_OF_MONTH,-7);//当前日期-7天Date week = cal.getTime();String week_date=week_format.format(week);return week_date;
}public static String getDay()
{Date date=new Date();Format day_format = new SimpleDateFormat("dd");//当前日Calendar cal = Calendar.getInstance();cal.setTime(date);cal.getTime();//当前日Date day = cal.getTime();String day_date=day_format.format(day);return day_date;
}

}

现在我们就可以在jmeter中调用BeanShell 取样器，如下图：

接下来在BeanShell 中引用DateUtil.java，代码如下：
source(“D:\apache-jmeter-5.1.1\bin\DateUtil.java”);
变量名不太规范，不要学我哦！

最后我们在接口中引入BeanShell 的变量，如下图

OK，至此BeanShell 取样器调用Java代码就结束了，谢谢