1：LoadRunner关联sessionID

1.1：录制脚本

1.1.1：Start Recording设置

我们以LoadRunner11自带的sample做这个演示

1.1.2：如下图点击小图标设置检查点

设置"Welcome,admin"为检查点，完成脚本的录制

1.1.3：录制好的脚本如下

注释是我自己录制完成后添加的

Action()
{

	web_add_cookie("MUID=3B882A344D5C68BB06CB2651495C6958; DOMAIN=www.bing.com");

	web_url("WebTours", 
		"URL=http://127.0.0.1:1080/WebTours/", 
		"TargetFrame=", 
		"Resource=0", 
		"RecContentType=text/html", 
		"Referer=", 
		"Snapshot=t3.inf", 
		"Mode=HTML", 
		EXTRARES, 
		"Url=http://se.360.cn/cloud/picinfo.ini", "Referer=", ENDITEM, 
		"Url=http://www.bing.com/favicon.ico", "Referer=", ENDITEM, 
		LAST);
//  设置检查点 检查下面的登录操作 以页面是否有Welcome,admin为判断是否登录成功的标志
	web_reg_find("Text=Welcome, <b>admin", 
		LAST);

	lr_think_time(10);

	web_submit_data("login.pl", 
		"Action=http://127.0.0.1:1080/WebTours/login.pl", 
		"Method=POST", 
		"TargetFrame=body", 
		"RecContentType=text/html", 
		"Referer=http://127.0.0.1:1080/WebTours/nav.pl?in=home", 
		"Snapshot=t4.inf", 
		"Mode=HTML", 
		ITEMDATA, 
        //userSession是变化的值，每次登陆都会有不同的userSession产生
		"Name=userSession", "Value=124463.257189145ztAcAHipHQVzzzzHDitVcptHcHf", ENDITEM, 
		"Name=username", "Value=admin", ENDITEM, 
		"Name=password", "Value=123456", ENDITEM, 
		"Name=JSFormSubmit", "Value=off", ENDITEM, 
		"Name=login.x", "Value=61", ENDITEM, 
		"Name=login.y", "Value=8", ENDITEM, 
		LAST);

	return 0;
}

1.2：提取关联

1.2.1：提取关联方法一（自动扫描关联）

1：Vuser-->Scan Script for Correlatons

2：自动生成关联-点击下图的“Correlate”可以自动生成关联

3：生成后的脚本是这样的相对最开始的脚本多了web_reg_save_param_ex这个函数和 Value=124463.3{CorrelationParameter_1}ztAcAitpDAiDDDDDDitVcpfAfif"

Action()
{

	web_add_cookie("MUID=3B882A344D5C68BB06CB2651495C6958; DOMAIN=www.bing.com");

//Correlation comment - Do not change! Original value='64439044' Name ='CorrelationParameter_1'

	web_reg_save_param_ex(
		"ParamName=CorrelationParameter_1",
		"LB=124463.3",
		"RB=z",
		SEARCH_FILTERS,
		"Scope=Body",
		"IgnoreRedirections=Yes",
		"RequestUrl=*/nav.pl*",
		LAST);

	web_url("WebTours",
		"URL=http://127.0.0.1:1080/WebTours/",
		"TargetFrame=",
		"Resource=0",
		"RecContentType=text/html",
		"Referer=",
		"Snapshot=t9.inf",
		"Mode=HTML",
		EXTRARES,
		"URL=http://se.360.cn/cloud/picinfo.ini", ENDITEM,
		"URL=http://www.bing.com/favicon.ico", ENDITEM,
		LAST);

	web_reg_find("Text=Welcome, <b>admin",
		LAST);

	lr_think_time(10);

	web_submit_data("login.pl",
		"Action=http://127.0.0.1:1080/WebTours/login.pl",
		"Method=POST",
		"TargetFrame=body",
		"RecContentType=text/html",
		"Referer=http://127.0.0.1:1080/WebTours/nav.pl?in=home",
		"Snapshot=t10.inf",
		"Mode=HTML",
		ITEMDATA,
		"Name=userSession", "Value=124463.3{CorrelationParameter_1}ztAcAitpDAiDDDDDDitVcpfAfif", ENDITEM,
		"Name=username", "Value=admin", ENDITEM,
		"Name=password", "Value=123456", ENDITEM,
		"Name=JSFormSubmit", "Value=off", ENDITEM,
		"Name=login.x", "Value=52", ENDITEM,
		"Name=login.y", "Value=8", ENDITEM,
		LAST);

return 0;
}