1. LoadRunner简介

LoadRunner是一款广泛使用的性能测试工具

可以对各种应用程序进行性能测试，包括Web应用程序、移动应用程序、企业级应用程序等。它提供了一个综合的性能测试解决方案，包括测试计划设计、脚本录制、测试执行、结果分析和报告生成等功能。

主要有以下几个核心组件：

Virtual User Generator（虚拟用户产生器）：用于录制和编辑性能测试脚本。通过模拟用户的行为来捕获用户与应用程序之间的交互操作。
Controller：用于设置测试场景和配置虚拟用户的行为。可以模拟不同的负载模式、并发用户数量和事务执行时间等。
Load Generators：用于模拟实际用户的虚拟用户，并产生负载。可以在多台物理或虚拟机器上分布负载。
Analysis：用于收集和分析测试执行期间的性能数据。提供图表、统计数据和报告，以便深入了解应用程序的性能状况。

2.Virtual User Generator基础使用

1.了解webtours系统

如何启动？

双击

配置

有了ip还需要port才能访问成功，在配置文件中查看port

2.脚本录制

打开VUG

如何确定协议？找开发沟通

录制

开始录制

有时需要将无关代码删除

3.编译

4.运行（回放）

打印日志：

Virtual User Script started at : 2023/7/21 8:42:35
Starting action vuser_init.
Web Turbo Replay of LoadRunner 12.0.0 for Windows 8; build 2739 (Nov 30 2014 23:13:05)  	[MsgId: MMSG-27143]
Run mode: HTML  	[MsgId: MMSG-26993]
Run-Time Settings file: "C:\Users\陈昌良\Documents\VuGen\Scripts\WebHttpHtml1\\default.cfg"  	[MsgId: MMSG-27141]
Ending action vuser_init.
Running Vuser...
Starting iteration 1.
Maximum number of concurrent connections per server: 6  	[MsgId: MMSG-26989]
Starting action Action.
Action.c(4): web_url("WebTours") started  	[MsgId: MMSG-26355]
Action.c(4): Detected non-resource "http://192.168.1.7:1080/WebTours/header.html" in "http://192.168.1.7:1080/WebTours/"  	[MsgId: MMSG-26574]
Action.c(4): Detected non-resource "http://192.168.1.7:1080/cgi-bin/welcome.pl?signOff=true" in "http://192.168.1.7:1080/WebTours/"  	[MsgId: MMSG-26574]
Action.c(4): Found resource "http://192.168.1.7:1080/WebTours/images/hp_logo.png" in HTML "http://192.168.1.7:1080/WebTours/header.html"  	[MsgId: MMSG-26659]
Action.c(4): Found resource "http://192.168.1.7:1080/WebTours/images/webtours.png" in HTML "http://192.168.1.7:1080/WebTours/header.html"  	[MsgId: MMSG-26659]
Action.c(4): Detected non-resource "http://192.168.1.7:1080/cgi-bin/nav.pl?in=home" in "http://192.168.1.7:1080/cgi-bin/welcome.pl?signOff=true"  	[MsgId: MMSG-26574]
Action.c(4): Detected non-resource "http://192.168.1.7:1080/WebTours/home.html" in "http://192.168.1.7:1080/cgi-bin/welcome.pl?signOff=true"  	[MsgId: MMSG-26574]
Action.c(4): Found resource "http://192.168.1.7:1080/WebTours/images/mer_login.gif" in HTML "http://192.168.1.7:1080/cgi-bin/nav.pl?in=home"  	[MsgId: MMSG-26659]
Action.c(4): web_url("WebTours") was successful, 10080 body bytes, 2371 header bytes, 24 chunking overhead bytes  	[MsgId: MMSG-26385]
Action.c(15): web_submit_form("login.pl") started  	[MsgId: MMSG-26355]
Action.c(15): Submitting form to "http://192.168.1.7:1080/cgi-bin/login.pl", Target Frame="body"  	[MsgId: MMSG-27978]
Action.c(15): Detected non-resource "http://192.168.1.7:1080/cgi-bin/nav.pl?username=Test&password=123456" in "http://192.168.1.7:1080/cgi-bin/login.pl"  	[MsgId: MMSG-26574]
Action.c(15): Detected non-resource "http://192.168.1.7:1080/cgi-bin/error.pl?error=badPassword" in "http://192.168.1.7:1080/cgi-bin/login.pl"  	[MsgId: MMSG-26574]
Action.c(15): Resource "http://192.168.1.7:1080/WebTours/images/mer_login.gif" is in the cache already and will not be downloaded again  	[MsgId: MMSG-26655]
Action.c(15): web_submit_form("login.pl") was successful, 2984 body bytes, 698 header bytes, 36 chunking overhead bytes  	[MsgId: MMSG-26385]
Action.c(26): web_submit_form("login.pl_2") started  	[MsgId: MMSG-26355]
Action.c(26): Submitting form to "http://192.168.1.7:1080/cgi-bin/login.pl", Target Frame="body"  	[MsgId: MMSG-27978]
Action.c(26): Detected non-resource "http://192.168.1.7:1080/cgi-bin/nav.pl?page=menu&in=home" in "http://192.168.1.7:1080/cgi-bin/login.pl"  	[MsgId: MMSG-26574]
Action.c(26): Detected non-resource "http://192.168.1.7:1080/cgi-bin/login.pl?intro=true" in "http://192.168.1.7:1080/cgi-bin/login.pl"  	[MsgId: MMSG-26574]
Action.c(26): Found resource "http://192.168.1.7:1080/WebTours/images/flights.gif" in HTML "http://192.168.1.7:1080/cgi-bin/nav.pl?page=menu&in=home"  	[MsgId: MMSG-26659]
Action.c(26): Found resource "http://192.168.1.7:1080/WebTours/images/itinerary.gif" in HTML "http://192.168.1.7:1080/cgi-bin/nav.pl?page=menu&in=home"  	[MsgId: MMSG-26659]
Action.c(26): Found resource "http://192.168.1.7:1080/WebTours/images/in_home.gif" in HTML "http://192.168.1.7:1080/cgi-bin/nav.pl?page=menu&in=home"  	[MsgId: MMSG-26659]
Action.c(26): Found resource "http://192.168.1.7:1080/WebTours/images/signoff.gif" in HTML "http://192.168.1.7:1080/cgi-bin/nav.pl?page=menu&in=home"  	[MsgId: MMSG-26659]
Action.c(26): web_submit_form("login.pl_2") was successful, 5780 body bytes, 2044 header bytes, 36 chunking overhead bytes  	[MsgId: MMSG-26385]
Ending action Action.
Ending iteration 1.
Ending Vuser...
Starting action vuser_end.
Ending action vuser_end.
Vuser Terminated.

思考时间可以设置

5.脚本增强

如何加强脚本

事务插入

函数：

lr_start_transcation("login") 开始事务

lr_end_transaction("login", LR_AUTO);结束事务

注意：事务必须有开始，有结束。缺一不可，会报错，名称也必须匹配

点击运行

事务的开始和结束

插入集合点

集合是什么？

在loadrunner为了达到并发这样的机制，引入了集合

让所有用户同时发起请求，等到所有用户都发出了，才向下执行脚本

lr_rendezvous("rendzous1");

插入检查点

属于注册函数，需要放在URL之前才会生效，

函数：web_reg_find();

参数化

还可以添加参数

运行：

打印相关日志

函数：lr_log_message("打印内容");

Action()
{

	web_url("WebTours", 
		"URL=http://192.168.1.7:1080/WebTours/", 
		"Resource=0", 
		"RecContentType=text/html", 
		"Referer=", 
		"Snapshot=t1.inf", 
		"Mode=HTML", 
		LAST);

	

	lr_think_time(15);

	lr_rendezvous("rendzous1");

	lr_start_transaction("login");
	//一百万用户到达这个点后才进行向下执行
	web_submit_form("login.pl", 
		"Snapshot=t2.inf", 
		ITEMDATA, 
		"Name=username", "Value=Test", ENDITEM, 
		"Name=password", "Value=123456", ENDITEM, 
		"Name=login.x", "Value=43", ENDITEM, 
		"Name=login.y", "Value=9", ENDITEM, 
		LAST);

	lr_think_time(7);

	lr_end_transaction("login", LR_AUTO);
	
	web_reg_find("Fail=NotFound",
		"Search=All",
		"SaveCount=",
		"Text=Welcome",
		LAST);
	

	web_submit_form("login.pl_2", 
		"Snapshot=t3.inf", 
		ITEMDATA, 
		"Name=username", "Value={username}", ENDITEM, 
		"Name=password", "Value={password}", ENDITEM, 
		"Name=login.x", "Value=51", ENDITEM, 
		"Name=login.y", "Value=5", ENDITEM, 
		LAST);
	
	lr_log_message("登录成功！");

	return 0;
}