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标题: LR11问题 lr_eval_string获取不到lr_save_string参数化后的值 [打印本页]

作者: jylizhihui 时间: 2017-7-10 14:01
标题: LR11问题 lr_eval_string获取不到lr_save_string参数化后的值
本帖最后由 jylizhihui 于 2017-7-10 14:05 编辑

测试软件为：LoadRunner Software 11.00

lr_save_string将"hello world"参数化为ParamTest1后无法用lr_eval_string取出参数ParamTest1的值hello world，日志中打印出来的值为参数名ParamTest1。
请问该如何才能取出参数{ParamTest1}的值hello world，并在日志中打印出来？试了几种情况都无效。

情形一
脚本如下：
Action()
{
  lr_start_transaction("Test");
      lr_think_time(2);
      lr_save_string("hello world","{ParamTest1}");
      lr_log_message("~~~~~~~~~~~~~ Begin ~~~~~~~~~~~~~");
  lr_log_message("The value of {ParamTest1} is: %s ! ",lr_eval_string("{ParamTest1}"));
      lr_log_message("~~~~~~~~~~~~~ End ~~~~~~~~~~~~~");
  lr_end_transaction("Test",LR_AUTO);
      return 0;
}

日志如下：
Starting iteration 1.       [MsgId: MMSG-15968]
Starting action Action.       [MsgId: MMSG-15919]
Action.c(12): Notify: Transaction "Test" started.       [MsgId: MMSG-16999]
Action.c(13): lr_think_time: 2.00 seconds.       [MsgId: MMSG-15948]
Action.c(14): Notify: Saving Parameter "{ParamTest1} = hello world".       [MsgId: MMSG-13798]
~~~~~~~~~~~~~ Begin ~~~~~~~~~~~~~       [MsgId: MMSG-17999]
The value of {ParamTest1} is: {ParamTest1} !       [MsgId: MMSG-17999]
~~~~~~~~~~~~~ End ~~~~~~~~~~~~~       [MsgId: MMSG-17999]
Action.c(20): Notify: Transaction "Test" ended with "Pass" status (Duration: 2.0008 Think Time: 2.0002).       [MsgId: MMSG-16872]
Ending action Action.       [MsgId: MMSG-15918]
Ending iteration 1.       [MsgId: MMSG-15965]

情形二
脚本如下：
Action()
{
  lr_start_transaction("Test");
      lr_think_time(2);
      lr_save_string("hello world","{ParamTest1}");
      lr_log_message("~~~~~~~~~~~~~ Begin ~~~~~~~~~~~~~");
      lr_log_message("The value of \"ParamTest1\" is: %s ! ",lr_eval_string("ParamTest1"));
      lr_log_message("~~~~~~~~~~~~~ End ~~~~~~~~~~~~~");
  lr_end_transaction("Test",LR_AUTO);
      return 0;
}

日志如下：
Starting iteration 1.       [MsgId: MMSG-15968]
Starting action Action.       [MsgId: MMSG-15919]
Action.c(12): Notify: Transaction "Test" started.       [MsgId: MMSG-16999]
Action.c(13): lr_think_time: 2.00 seconds.       [MsgId: MMSG-15948]
Action.c(14): Notify: Saving Parameter "{ParamTest1} = hello world".       [MsgId: MMSG-13798]
~~~~~~~~~~~~~ Begin ~~~~~~~~~~~~~       [MsgId: MMSG-17999]
The value of "ParamTest1" is: ParamTest1 !       [MsgId: MMSG-17999]
~~~~~~~~~~~~~ End ~~~~~~~~~~~~~       [MsgId: MMSG-17999]
Action.c(20): Notify: Transaction "Test" ended with "Pass" status (Duration: 2.0070 Think Time: 2.0063).       [MsgId: MMSG-16872]
Ending action Action.       [MsgId: MMSG-15918]
Ending iteration 1.       [MsgId: MMSG-15965]

情形三
脚本如下：
Action()
{
  lr_start_transaction("Test");
      lr_think_time(2);
      lr_save_string("hello world","ParamTest1");
      lr_log_message("~~~~~~~~~~~~~ Begin ~~~~~~~~~~~~~");
  lr_log_message("The value of {ParamTest1} is: %s ! ",lr_eval_string("{ParamTest1}"));
      lr_log_message("~~~~~~~~~~~~~ End ~~~~~~~~~~~~~");
  lr_end_transaction("Test",LR_AUTO);
      return 0;
}

日志如下：
Starting iteration 1.       [MsgId: MMSG-15968]
Starting action Action.       [MsgId: MMSG-15919]
Action.c(12): Notify: Transaction "Test" started.       [MsgId: MMSG-16999]
Action.c(13): lr_think_time: 2.00 seconds.       [MsgId: MMSG-15948]
Action.c(15): Notify: Saving Parameter "ParamTest1 = hello world".       [MsgId: MMSG-13798]
~~~~~~~~~~~~~ Begin ~~~~~~~~~~~~~       [MsgId: MMSG-17999]
The value of {ParamTest1} is: {ParamTest1} !       [MsgId: MMSG-17999]
~~~~~~~~~~~~~ End ~~~~~~~~~~~~~       [MsgId: MMSG-17999]
Action.c(20): Notify: Transaction "Test" ended with "Pass" status (Duration: 2.0036 Think Time: 2.0029).       [MsgId: MMSG-16872]
Ending action Action.       [MsgId: MMSG-15918]
Ending iteration 1.       [MsgId: MMSG-15965]

情形四
脚本如下：
Action()
{
  lr_start_transaction("Test");
      lr_think_time(2);       //lr_save_string("hello world","{ParamTest1}");
      lr_save_string("hello world","ParamTest1");
      lr_log_message("~~~~~~~~~~~~~ Begin ~~~~~~~~~~~~~");
      lr_log_message("The value of \"ParamTest1\" is: %s ! ",lr_eval_string("ParamTest1"));
      lr_log_message("~~~~~~~~~~~~~ End ~~~~~~~~~~~~~");
  lr_end_transaction("Test",LR_AUTO);
      return 0;
}

日志如下：
Starting iteration 1.       [MsgId: MMSG-15968]
Starting action Action.       [MsgId: MMSG-15919]
Action.c(12): Notify: Transaction "Test" started.       [MsgId: MMSG-16999]
Action.c(13): lr_think_time: 2.00 seconds.       [MsgId: MMSG-15948]
Action.c(15): Notify: Saving Parameter "ParamTest1 = hello world".       [MsgId: MMSG-13798]
~~~~~~~~~~~~~ Begin ~~~~~~~~~~~~~       [MsgId: MMSG-17999]
The value of "ParamTest1" is: ParamTest1 !       [MsgId: MMSG-17999]
~~~~~~~~~~~~~ End ~~~~~~~~~~~~~       [MsgId: MMSG-17999]
Action.c(20): Notify: Transaction "Test" ended with "Pass" status (Duration: 2.0142 Think Time: 2.0133).       [MsgId: MMSG-16872]
Ending action Action.       [MsgId: MMSG-15918]
Ending iteration 1.       [MsgId: MMSG-15965]

作者: 天之秦 时间: 2017-7-10 14:51
这样就可以，另外，不需要新建参数paramtest1.
Action()
{
lr_save_string("hello world","ParamTest1");
lr_log_message("~~~~~~~~~~~~~ Begin ~~~~~~~~~~~~~");
lr_log_message("The value of {ParamTest1} is: %s ! ",lr_eval_string("{ParamTest1}"));
lr_log_message("~~~~~~~~~~~~~ End ~~~~~~~~~~~~~");
return 0;
}

输出结果：

Virtual User Script started
Starting action vuser_init.
Web Turbo Replay of LoadRunner 9.50 for WINXP; WebReplay9a build 6220 (Dec 28 2008 17:01:56)    [MsgId: MMSG-27143]
Run Mode: HTML    [MsgId: MMSG-26000]
Run-Time Settings file: "C:\Documents and Settings\Administrator\Local Settings\Temp\noname2\\default.cfg"    [MsgId: MMSG-27141]
Ending action vuser_init.
Running Vuser...
Starting iteration 1.
Starting action Action.
~~~~~~~~~~~~~ Begin ~~~~~~~~~~~~~
The value of {ParamTest1} is: hello world !
~~~~~~~~~~~~~ End ~~~~~~~~~~~~~
Ending action Action

作者: jylizhihui 时间: 2017-7-10 15:22

天之秦发表于 2017-7-10 14:51
这样就可以，另外，不需要新建参数paramtest1.
Action()
{

这真的很奇怪
我按照你的脚本来运行，把ParamTest1参数删除了，结果还是一样的取不到lr_save_string参数化后的ParamTest1参数的值。是不是你的loadrunner为9.5，而我的loadrunner为11的原因。

脚本如下
#include "lrs.h"

Action()
{
lr_save_string("hello world","ParamTest1");
lr_log_message("~~~~~~~~~~~~~ Begin ~~~~~~~~~~~~~");
lr_log_message("The value of {ParamTest1} is: %s ! ",lr_eval_string("{ParamTest1}"));
lr_log_message("~~~~~~~~~~~~~ End ~~~~~~~~~~~~~");
return 0;
}

日志如下
Virtual User Script started at : 2017-07-10 15:08:35 [MsgId: MMSG-15967]
Starting action vuser_init. [MsgId: MMSG-15919]
vuser_init.c(12): lrs_startup(257) [MsgId: MMSG0]
Ending action vuser_init. [MsgId: MMSG-15918]
Running Vuser... [MsgId: MMSG-15964]
Starting iteration 1. [MsgId: MMSG-15968]
Starting action Action. [MsgId: MMSG-15919]
Action.c(11): Notify: Saving Parameter "ParamTest1 = hello world". [MsgId: MMSG-13798]
~~~~~~~~~~~~~ Begin ~~~~~~~~~~~~~ [MsgId: MMSG-17999]
The value of {ParamTest1} is: {ParamTest1} ! [MsgId: MMSG-17999]
~~~~~~~~~~~~~ End ~~~~~~~~~~~~~ [MsgId: MMSG-17999]
Ending action Action. [MsgId: MMSG-15918]
Ending iteration 1. [MsgId: MMSG-15965]
Starting iteration 2. [MsgId: MMSG-15968]
Notify: Next row for parameter ParamTest = 2 [table = ParamTest]. [MsgId: MMSG-13876]
Notify: Getting new value for parameter 'ParamTest': table = 'ParamTest.dat' column = '0' row = '2'. [MsgId: MMSG-13877]
Starting action Action. [MsgId: MMSG-15919]
Action.c(11): Notify: Saving Parameter "ParamTest1 = hello world". [MsgId: MMSG-13798]
~~~~~~~~~~~~~ Begin ~~~~~~~~~~~~~ [MsgId: MMSG-17999]
The value of {ParamTest1} is: {ParamTest1} ! [MsgId: MMSG-17999]
~~~~~~~~~~~~~ End ~~~~~~~~~~~~~ [MsgId: MMSG-17999]
Ending action Action. [MsgId: MMSG-15918]
Ending iteration 2. [MsgId: MMSG-15965]

作者: remind19 时间: 2017-7-10 15:31
还有一个你看下general options里面的parameter braces是｛｝还是<>

作者: jylizhihui 时间: 2017-7-10 16:35

remind19 发表于 2017-7-10 15:31
还有一个你看下general options里面的parameter braces是｛｝还是

还真是这个问题，我用Socket协议来测试的，故变量的符合是<>，改为lr_eval_string("<ParamTest1>")就可以了。

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