loadrunner之脚本篇——将内容保存为参数

在VuGen中默认使用{}的字符串称为参数

注意：参数必须在双引号中才能用

将字符串保存为参数

lr_save_string("string you want to save", "arg_name");

举例：用参数来替换需要打开的url链接

Action2()

{

lr_save_string("http://172.25.75.2:1080/WebTours/", "web_site");

//打开登录页面

web_url("WebTours",

"URL = {web_site}",   //运行出错//改成"URL= {web_site}"即可

"Resource=0",

"RecContentType=text/html",

"Referer=",

"Snapshot=t1.inf",

"Mode=HTML",

LAST);

return 0;

}

运行报错：

Action2.c(6): Error -27226: The "URL = http://172.25.75.2:1080/WebTours/" argument (number 2) is unrecognized or misplaced    [MsgId: MERR-27226]

Action2.c(6): web_url("WebTours") highest severity level was "ERROR", 0 body bytes, 0 header bytes  [MsgId: MMSG-26388]

解决方法：

"URL = {web_site}",URL和等号”=”之间多出了一个空格，去掉该空格即可。

所以使用lr_eval_string()函数的时候也是使用双引号来调用的。

还可以如下方式

Action2()

{

lr_save_string("http://172.25.75.2:1080/", "web_site");

lr_save_string("WebTours/", "web_name");

//打开登录页面

web_url("WebTours",

"URL={web_site}{web_name}",

"Resource=0",

"RecContentType=text/html",

"Referer=",

"Snapshot=t1.inf",

"Mode=HTML",

LAST);

return 0;

}

获取参数值的字符串表识

可用lr_eval_string函数获取参数值的字符串标表示，然后用lr_output_message()函数输出结果

Action2()

{

lr_save_string("http://172.25.75.2:1080/", "web_site");

lr_save_string("WebTours/", "web_name");

lr_output_message(lr_eval_string("获取参数值的字符串表示：{web_site}{web_name}"));

//打开登录页面

web_url("WebTours",

"URL= {web_site}{web_name}",

"Resource=0",

"RecContentType=text/html",

"Referer=",

"Snapshot=t1.inf",

"Mode=HTML",

LAST);

return 0;

}

注：如果想获取参数字符串的第一个字母，同c,可以这样：lr_eval_string(“{param}”)[0];

将int型数字保存为参数

lr_save_int(int_number, “param_name”)

例如：

Action2()

{

lr_save_int(0, "int_param");

//打开登录页面

web_url("WebTours",

"URL=http://172.25.75.2:1080/WebTours/",

//      "Resource=0",

"Resource={int_parma}",

"RecContentType=text/html",

"Referer=",

"Snapshot=t1.inf",

"Mode=HTML",

LAST);

return 0;

}

把时间保存为参数

通过lr_save_datetime函数来实现。

函数原型：

void lr_save_datetime(const char *format, int offset, const char *name);

format：期望输出的日期格式，如：%Y、%m、%d、%X等

offset：类似与表示时间的一些关键字常量：

DATE_NOW -> 现在的日期

TIME_NOW -> 现在的时间

ONE_DAY -> 一天的时间

ONE_HOUR -> 一小时的时间

ONE_MIN -> 一分钟的时间

需要注意的是，他们可以单独使用，也可以联合使用

DATE_NOW + TIME_NOW -> 当前时间

DATE_NOW-ONE_DAY -> 昨天

DATE_NOW+ONE_DAY -> 明天

两天前的日期

DATE_NOW-2*(ONE_DAY)、 DATE_NOW-2*24*(ONE_HOUR)、 DATE_NOW-2*24*60*(ONE_MIN)

2个小时后的时间

TIME_NOW+2*(ONE_HOUR)

TIME_NOW+2*60*(ONE_MIN)

name：期望将时间保存到的那个参数的名称

format格式参照表：

Code	Description
%a	day of week, using locale's abbreviated weekday names
%A	day of week, using locale's full weekday names
%b	month, using locale's abbreviated month names
%B	month, using locale's full month names
%c	date and time as %x %X
%d	day of month (01-31)
%H	hour (00-23)
%I	hour (00-12)
%j	number of day in year (001-366)
%m	month number (01-12)
%M	minute (00-59)
%p	locale's equivalent of AM or PM, whichever is appropriate
%S	seconds (00-59)
%U	week number of year (01-52), Sunday is the first day of the week. Week number 01 is the first week with four or more January days in it.
%w	day of week; Sunday is day 0
%W	week number of year (01-52), Monday is the first day of the week. Week number 01 is the first week with four or more January days in it.
%x	date, using locale's date format
%X	time, using locale's time format
%y	year within century (00-99)
%Y	year, including century (for example, 1988)
%Z	time zone abbreviation
%%	to include the "%" character in your output string

 

 

举例：

Action()

{

lr_save_datetime("%X",TIME_NOW,"time");

lr_save_datetime("%Y-%m-%d",DATE_NOW,"date");

lr_save_datetime("%Y-%m-%d %X",DATE_NOW+TIME_NOW,"datetime");

lr_save_datetime("%Y-%m-%d",DATE_NOW-ONE_DAY,"yesterday");

lr_output_message(lr_eval_string("系统的当前时间为：{time}"));

lr_output_message(lr_eval_string("系统的当前日期为：{date}"));

lr_output_message(lr_eval_string("系统的当前日期,当前时间：{datetime}"));

lr_output_message(lr_eval_string("昨天的日期为：{yesterday}"));

return 0;

}

运行结果：

Starting iteration 1.

Starting action Action.

Action.c(7): 系统的当前时间为：12:27:54

Action.c(8): 系统的当前日期为：2014-10-22

Action.c(9): 系统的当前日期,当前时间：2014-10-22 12:27:54

Action.c(10): 昨天的日期为：2014-10-21

Ending action Action.

Ending iteration 1.

把内容保存为带格式的参数

lr_param_sprintf(param_name,format,var1,var2,…);

示例：

Action2()

{

int index = 56;

char *suffix = "txt";

lr_param_sprintf("NewParam","log_%d.%s",index,suffix);

lr_output_message("The new file name is %s",lr_eval_string("{NewParam}"));

return 0;

}

运行结果：

Starting action Action2.

Action2.c(24): The new file name is log_56.txt

Ending action Action2.