如何在Loadrunner VUGen中获取整个响应正文？

Question

我需要在 Loadrunner VUGen 中获取整个响应正文。我试试

web_set_max_html_param_len("60000");
web_reg_save_param_ex(
    "ParamName=js_top",
    "LB=",
    "RB=",
    SEARCH_FILTERS,
    "Scope=Body",
    LAST);
web_url("categories",
        "URL=https://advantageonlineshopping.com/catalog/api/v1/categories", 
        "TargetFrame=", 
        "Resource=0", 
        "RecContentType=application/json", 
        "Referer=https://advantageonlineshopping.com/", 
        "Snapshot=t20.inf", 
        "Mode=HTML", 
        LAST);

但出现错误： Action.c(147)：错误-26377：找不到请求的参数“js_top”的匹配项。在响应中未找到指定的边界，或者匹配的文本比当前最大 html 参数大小 60000 字节长。响应的总长度为 4477 字节。您可以使用“web_set_max_html_param_len”来增加最大参数大小。 [消息 ID：MERR-26377]

Answer 1

尝试使用下面的内容，如果您遇到任何问题，请告诉我。

web_set_max_html_param_len("9999999");
web_reg_save_param("c_fullresponse", "LB=", "RB=", LAST);
web_url("categories",
        "URL=https://advantageonlineshopping.com/catalog/api/v1/categories", 
        "TargetFrame=", 
        "Resource=0", 
        "RecContentType=application/json", 
        "Referer=https://advantageonlineshopping.com/", 
        "Snapshot=t20.inf", 
        "Mode=HTML", 
        LAST);

如果仍然出现错误，请尝试启用日志。从运行时设置中的日志打开服务器跟踪。 启用日志后您将收到响应。根据该数据，您可以决定需要什么 LB 或 RB，以捕获完整的响应。

Answer 2

该代码对我有用：

    web_set_max_html_param_len("9999999");
        web_reg_save_param_json(
            "ParamName=userId", // Specify the parameter name to store the captured value
            "QueryString=$.data.accessToken", // Specify the JSONPath expression to extract the value
            //"Ordinal=1", // Specify the occurrence of the value if there are multiple matches
            LAST); 

web_custom_request("login_2", 
        "URL=https://reconstream-int.timestreamgroup.com/api/users/login", 
        "Method=POST", 
        "Resource=0", 
        "RecContentType=application/json", 
        "Referer=https://reconstream-int.timestreamgroup.com/login", 
        "Snapshot=t334.inf", 
        "Mode=HTML", 
        "EncType=application/json", 
        "Body={\"data\":{\"username\":\"[email protected]\",\"password\":\"@2023\"}}", 
        LAST);
        
        web_set_user("reconstream-int.timestreamgroup.com\\[email protected]", "@2023", "reconstream-int.timestreamgroup.com");
        lr_think_time(60);
        /*web_reg_save_param("data",
        "LB/IC={\"data\": {",
        "RB/IC=\"checker\": null}",
        LAST);*/
        //lr_output_message("Response Body: %s", lr_eval_string("{data}"));
    
        
        lr_output_message("Response Body: %s", lr_eval_string("{userId}"));