LoadRunner关联（附普通关联和数组随机提取关联案例）

关联实质是下一个请求发送参数来自于上一个请求的响应值（首先问开发，然后利用lr或fiddler查找比对录制与回放的请求/响应的源文件）：头文件cookie、session、自定义

- 自动关联：菜单User>Scan scripts for correlations

- 手工关联：问开发+查看日志+Fillder请求与响应的源文件

- 调试技巧

1利用lr自身log日志（接口少还可以）

2利用log函数(自己打印)

3利用result（信息有时候不全）

4利用fiddler

=====关联基本提取，例子===

Action()

{

web_reg_save_param("mysessiontest","LB=userSession value=","RB=>",LAST);

web_reg_save_param("mysessiontest","LB=userSession value=","RB=>","NotFound=WARNING",LAST);//此种方式代表找不到参数不报error，只报waring

web_url("WebTours", 

"URL=http://127.0.0.1:1080/WebTours/",

 "TargetFrame=", 

"Resource=0", 

"RecContentType=text/html", 

"Referer=", 

"Snapshot=t1.inf",

 "Mode=HTML", 

LAST); 

 lr_log_message("mysession is %s",lr_eval_string("{mysessiontest}")); 

web_reg_find("Text=Welcome,admin1",

LAST);

lr_think_time(26);

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=t2.inf",

"Mode=HTML",

ITEMDATA,

"Name=userSession", "Value={mysessiontest}", ENDITEM,

"Name=username", "Value=admin1", ENDITEM,

"Name=password", "Value=admin1", ENDITEM,

"Name=JSFormSubmit", "Value=off", ENDITEM,

"Name=login.x", "Value=55", ENDITEM,

"Name=login.y", "Value=4", ENDITEM,

LAST);

return 0;

}

===========关联数组提取随机值的例子===========

Action()

{

web_add_cookie("loginname=abc; DOMAIN=IP");

//Correlation comment: Automatic rules - Do not change! Original value='0B967FE5B54ED8528A0BED089BD5C0B0' Name ='PeopleSoftJSessionID1'

web_reg_save_param_ex(

"ParamName=PeopleSoftJSessionID1",

"LB/IC=jsessionid=",

"RB/IC=?",

SEARCH_FILTERS,

"Scope=Body",

"IgnoreRedirections=Yes",

"RequestUrl=*/index.jsp*",

LAST);

web_url("index.jsp",

"URL=http://IP:8080/goods/index.jsp",

"TargetFrame=",

"Resource=0",

"RecContentType=text/html",

"Referer=",

"Snapshot=t1.inf",

"Mode=HTML",

EXTRARES,

"URL=menu/img/jia.png", "Referer=http://IP.183:8080/goods/CategoryServlet;jsessionid=0B967FE5B54ED8528A0BED089BD5C0B0?method=findAll", ENDITEM,

LAST);

lr_think_time(9);

web_url("会员登录",

"URL=http://IP:8080/goods/jsps/user/login.jsp",

"TargetFrame=_parent",

"Resource=0",

"RecContentType=text/html",

"Referer=http://IP:8080/goods/jsps/top.jsp;jsessionid={PeopleSoftJSessionID1}",

"Snapshot=t2.inf",

"Mode=HTML",

EXTRARES,

"URL=/goods/images/login_sprites_20110808.png", ENDITEM,

"URL=/goods/images/login2.jpg", ENDITEM,

LAST);

web_submit_data("UserServlet",

"Action=http://IP:8080/goods/UserServlet",

"Method=POST",

"RecContentType=text/html",

"Referer=http://IP:8080/goods/jsps/user/login.jsp",

"Snapshot=t3.inf",

"Mode=HTML",

ITEMDATA,

"Name=method", "Value=login", ENDITEM,

"Name=loginname", "Value=abc", ENDITEM,

"Name=loginpass", "Value=abc", ENDITEM,

"Name=x", "Value=35", ENDITEM,

"Name=y", "Value=14", ENDITEM,

EXTRARES,

"URL=menu/img/jian.png", "Referer=http://IP:8080/goods/CategoryServlet?method=findAll", ENDITEM,

LAST);

web_reg_save_param("booklist",

"LB=bid=",

"RB=\">",

"Ord=ALL",

LAST);

web_url("BookServlet",

"URL=http://IP:8080/goods/BookServlet?method=findByCategory&cid=5F79D0D246AD4216AC04E9C5FAB3199E",

"TargetFrame=body",

"Resource=0",

"RecContentType=text/html",

"Referer=http://IP:8080/goods/CategoryServlet?method=findAll",

"Snapshot=t4.inf",

"Mode=HTML",

EXTRARES,

"URL=images/paginating_bg.png", "Referer=http://IP:8080/goods/BookServlet?method=findByCategory&cid=5F79D0D246AD4216AC04E9C5FAB3199E", ENDITEM,

LAST);

lr_save_string(lr_paramarr_random("booklist"), "rbid");

lr_log_message("rbid is %s",lr_eval_string("{rbid}"));

web_url("随机获取一本书",

"URL=http://IP:8080/goods/BookServlet?method=load&bid={rbid}",

"TargetFrame=",

"Resource=0",

"RecContentType=text/html",

"Referer=http://IP:8080/goods/BookServlet?method=findByCategory&cid=5F79D0D246AD4216AC04E9C5FAB3199E",

"Snapshot=t5.inf",

"Mode=HTML",

EXTRARES,

"URL=images/all.png", "Referer=http://IP:8080/goods/BookServlet?method=load&bid={rbid}", ENDITEM,

LAST);

return 0;

}