LoadRunner的关联函数的位置

关联函数的位置 自我总结 关联函数目前只用到了两种形式

1、	web_reg_save_param("usersession","LB=<input name="userSession" rb="" type="hidden" value="&#44;"/>",LAST);
2、	web_reg_save_param("usersession","LB=<input name="userSession" rb="" type="hidden" value="&#44;"/>",“ORD=ALL”，”Savelen=18“，LAST);

其中usersession是loadrunner的参数名或者参数数组名。

LB是动态返回值的左边界
RB是动态返回值的右边界
ORD=ALL是选择所有相同左右边界的字符串都存入参数或者参数数组中
Savelen=18是要存储的字符串的长度
LAST表述函数结合苏位置

一般关联函数都是放到出现动态返回参数的录制响应函数之上，第一个非资源和脚本的响应之前，就可可以了 例如：

	web_url("home.html", 
		"URL=http://127.0.0.1:1080/WebTours/home.html", 
		"Resource=0", 
		"RecContentType=text/html", 
		"Referer=http://127.0.0.1:1080/WebTours/welcome.pl?signOff=true", 
		"Snapshot=t6.inf", 
		"Mode=HTTP", 
		LAST);
	web_reg_save_param("usersession","LB=<input name="userSession" rb="" type="hidden" value="&#44;"/>",LAST);
//这个位置就是出现动态参数之前，第一个非资源和脚本响应的位置
//web_url("nav.pl")）之下有一个js脚本和若干个图片类资源
	web_url("nav.pl", 
		"URL=http://127.0.0.1:1080/WebTours/nav.pl?in=home", 
		"Resource=0", 
		"RecContentType=text/html", 
		"Referer=http://127.0.0.1:1080/WebTours/welcome.pl?signOff=true", 
		"Snapshot=t7.inf", 
		"Mode=HTTP", 
		LAST);

	web_concurrent_end(NULL);

	web_concurrent_start(NULL);
	
	web_url("JSFormSubmit.js", 
		"URL=http://127.0.0.1:1080/WebTours/JSFormSubmit.js", 
		"Resource=1", 
		"RecContentType=application/x-javascript", 
		"Referer=http://127.0.0.1:1080/WebTours/nav.pl?in=home", 
		"Snapshot=t8.inf", 
		LAST);

	web_url("mer_login.gif", 
		"URL=http://127.0.0.1:1080/WebTours/images/mer_login.gif", 
		"Resource=1", 
		"RecContentType=image/gif", 
		"Referer=http://127.0.0.1:1080/WebTours/nav.pl?in=home", 
		"Snapshot=t9.inf", 
		LAST);

	web_concurrent_end(NULL);


	lr_start_transaction("login-0");

	lr_think_time(17);
	web_submit_data("login.pl", 
		"Action=http://127.0.0.1:1080/WebTours/login.pl", 
		"Method=POST", 
		"RecContentType=text/html", 
		"Referer=http://127.0.0.1:1080/WebTours/nav.pl?in=home", 
		"Snapshot=t10.inf", 
		"Mode=HTTP", 
		ITEMDATA, 
		"Name=userSession", "Value={usersession}", ENDITEM, 
		"Name=username", "Value=test001", ENDITEM, 
		"Name=password", "Value=123456", ENDITEM, 
		"Name=JSFormSubmit", "Value=on", ENDITEM, 
		"Name=login.x", "Value=53", ENDITEM, 
		"Name=login.y", "Value=12", ENDITEM, 
		LAST);