LoadRunner11 实现token的解析与认证

问题描述：

1、当前系统通过token实现系统安全验证，登录成功后，token被存储在返回体中（reaponse body）,后续服务器请求时，需要将该token添加到请求头部（request header）中；
2、当前web服务访问时，强制限制必须适应谷歌浏览器；
3、Lr录制脚本时，需要通过代理的方式录制，但录制结果回放时，总是提示错误：

Error -26630: HTTP Status-Code=401 (Unauthorized) for ***；

##解决办法：
1、打开录制的脚本，默认为脚本[Script]模式，需要切换到树[Tree]视图；

2、在左侧列表汇总找到系统登录请求[login]步骤，在右侧找到[Response Body]步骤，返回数据为json格式，如下：

{
“code” : 200,
“message” : “操作成功”,
“name”:admin,
“token”:“3E78453A8B17F3A4EBA1B19D7F4D22D4-NKifP2w4mhXI9vl1YZynupr”
}

3、选择[token]的值域内容，右键选择[Create Parameter];切换到[Script]视图，看到如下Lr新增内容：

//Correlation comment - Do not change!Original value='3E78453A8B17F3A4EBA1B19D7F4D22D4-NKifP2w4mhXI9vl1YZynupr' Name ='CorrelationParameter_1'
// Lr自动添加的参数解析算法
web_reg_save_param_ex("ParamName=CorrelationParameter_1","LB=\"","RB=\",",SEARCH_FILTERS,"Scope=Body","RequestUrl=*/login*",LAST);// 修订[token]解析算法：
// 按照默认Lr解析[token]的算法，无法获取到真正的token，需要修订如下：
web_reg_save_param_ex("ParamName=my_token", // 修改参数名,便于记忆"LB=\"token\":\"", // 修改 token 值解析算法"RB=\",",SEARCH_FILTERS,"Scope=Body","RequestUrl=*/login*",LAST);// 登录模块-此部分为Lr自动生成部分，不需要修改；
web_custom_request("login","URL=http://192.168.0.1:8080/test/login","Method=POST","Resource=0","RecContentType=application/json","Referer=http://192.168.0.1:8080/test/index.html","Snapshot=t6.inf","Mode=HTML","EncType=application/json","Body={\"userName\":\"admin\",\"password\":\"123456\"}",LAST);// 新增：将解析出的 token 自动添加在每一个后续请求的头部（request header）:
web_add_auto_header("Authorization", "{my_token}");         // 后续的web请求，自动添加token认证：
web_url(***);
web_submit_data(***);

至此完成token解析与认证。

参考：

https://www.cnblogs.com/amy7758/p/5639006.html

文章原文内容如下：

1、token是服务器返回的一个值，

用于验证身份。

因此需要在response body中查找第一次出现token的地方。

2、token是登录时候返回的，因此需要在登录的请求那里找。

3、切换到树图，找到响应的登录操作

3、添加关联之后，脚本中会增加一个语句，它出现在登录之前。

/Correlation comment - Do not change!Original value=‘48d5b44a89864d17b86509a201cc942c‘ Name =‘CorrelationParameter_1‘web_reg_save_param_ex("ParamName=CorrelationParameter_1","LB=:\"","RB=\",",SEARCH_FILTERS,"Scope=Body","RequestUrl=*/authentication*",LAST);web_submit_data("authentication","Action=http://www.moojnn.com/mojingcsp/authentication","Method=POST","TargetFrame=","RecContentType=application/json","Referer=http://www.moojnn.com/user/login.html","Snapshot=t3.inf","Mode=HTML",ITEMDATA,"Name=username", "Value={userName}", ENDITEM,"Name=password", "Value=e10adc3949ba59abbe56e057f20f883e", ENDITEM,EXTRARES,"URL=http://pro.moojnn.com/lib/leaflet/leaflet.css?_d=1467120445822", "Referer=http://pro.moojnn.com/projects.html", ENDITEM,"URL=http://pro.moojnn.com/css/icon/style.css?_d=1467120445822", "Referer=http://pro.moojnn.com/projects.html", ENDITEM,"URL=http://pro.moojnn.com/css/common.css?_d=1467120445822", "Referer=http://pro.moojnn.com/projects.html", ENDITEM,"URL=http://pro.moojnn.com/js/mjchart/theme/mjvi.css?_d=1467120445822", "Referer=http://pro.moojnn.com/projects.html", ENDITEM,"URL=http://pro.moojnn.com/js/config.js", "Referer=http://pro.moojnn.com/projects.html", ENDITEM,"URL=http://pro.moojnn.com/js/functions.js?_d=1467120445822", "Referer=http://pro.moojnn.com/projects.html", ENDITEM,"URL=http://pro.moojnn.com/js/mjchart/mjvi.min.js?_d=1467120445822", "Referer=http://pro.moojnn.com/projects.html", ENDITEM,"URL=http://pro.moojnn.com/js/common.js?_d=1467120445822", "Referer=http://pro.moojnn.com/projects.html", ENDITEM,"URL=../static/js/csp.js?_=1467473737411", "Referer=http://pro.moojnn.com/projects.html", ENDITEM,LAST);web_url("popup-help.html_2","URL=http://www.moojnn.com/user/popup-help.html?from=http%3A%2F%2Fpro.moojnn.com%2Fprojects.html%23%2F%3FMoJing-Token%3D{CorrelationParameter_1}","TargetFrame=","Resource=0","RecContentType=text/html","Referer=http://pro.moojnn.com/projects.html","Snapshot=t4.inf","Mode=HTML",EXTRARES,"URL=http://hm.baidu.com/hm.js?177ebef2f9a9244c738b903eef680a83", "Referer=http://pro.moojnn.com/projects.html", ENDITEM,"URL=http://z6.cnzz.com/stat.htm?id=1253524178&r=http%3A%2F%2Fwww.moojnn.com%2Fuser%2Flogin.html&lg=zh-cn&ntime=1467467462&cnzz_eid=1418985023-1467467462-http%3A%2F%2Fwww.moojnn.com%2F&showp=1366x768&p=http%3A%2F%2Fpro.moojnn.com%2Fprojects.html%23%2F%3FMoJing-Token%3D{CorrelationParameter_1}&t=&h=1&rnd=1141052232", "Referer=http://pro.moojnn.com/projects.html", ENDITEM,"URL=http://pro.moojnn.com/mojing-server/user/login?MoJing-Token={CorrelationParameter_1}", "Referer=http://pro.moojnn.com/projects.html", ENDITEM,"URL=http://hm.baidu.com/hm.gif?cc=0&ck=1&cl=24-bit&ds=1366x768&et=0&fl=22.0&ja=0&ln=zh-CN&lo=0&lt=1467473654&nv=0&rnd=1523982449&si=177ebef2f9a9244c738b903eef680a83&st=4&su=http%3A%2F%2Fwww.moojnn.com%2Fuser%2Flogin.html&v=1.1.26&lv=3", "Referer=http://pro.moojnn.com/projects.html", ENDITEM,LAST);