Loadrunner模拟Json请求-白红宇

Loadrunner模拟Json请求

阅读量：5148 次

发布时间：2019-06-13

本文共 5388 字，大约阅读时间需要 17 分钟。

一、loadrunner脚本创建

1.Insert - New step -选择Custom Request - web_custom_request

2.填入相应参数

3.生成脚本，并修改如下（参数中的引号"前需要加斜杠\转译）

Action()

{

lr_start_transaction("Sendorder");

web_reg_find("Search=Body",

"SaveCount=Sendorder_count",

"Text=ord_sn",

LAST);

web_custom_request("sendOrder.html",

"URL=http://192.168.1.205:9000/default/com.bybon.O2O.services.apiservice.getApiServiceMgr.getApiService.api",

"Method=POST",

"Resource=0",

"RecContentType=text/html",

"Referer=http://192.168.1.205:9000/default/com.bybon.O2O.services.apiservice.getApiServiceMgr.getApiService.api",

"Snapshot=t229.inf",

"Mode=HTTP",

"EncType=application/json",

"Body={\"sign\":\"963a8d91fab997a490918ebbfe71cba5\",\"param\":\"%7B%22ord_sn%22%3A%22%22%2C%22serve_type%22%3A%221%22%2C%22ord_platform%22%3A%22pcf%22%2C%22ord_src%22%3A%221%22%2C%22mem_id%22%3A%221905%22%2C%22wx_field%22%3A%22%22%2C%22mem_name%22%3A%2218551625706%22%2C%22zipcode%22%3A%22%22%2C%22postscript%22%3A%22%5Cu7559%5Cu8a00%22%2C%22tel%22%3A%2218551625706%22%2C%22email%22%3A%22%22%2C%22storecode%22%3A%22A042%22%2C%22sn%22%3A%22%22%2C%22imei%22%3A%22%22%2C%22phone_modelcode%22%3A%22080111%22%2C%22phone_color%22%3A%221%22%2C%22phone_volume%22%3A%222%22%2C%22suggest_scheme_code%22%3A%22080111.1.2.14.1%22%2C%22addressList%22%3A%5B%7B%22addr_type%22%3A%224%22%2C%22province%22%3A%222%22%2C%22city%22%3A%2252%22%2C%22district%22%3A%22506%22%2C%22address%22%3A%22test%22%2C%22zipcode%22%3A%22%22%2C%22tel%22%3A%2218551625706%22%2C%22user_name%22%3A%22%5Cu6d4b%5Cu8bd5%22%7D%5D%2C%22remark%22%3A%22%22%2C%22offerList%22%3A%22%22%2C%22appoint_stime%22%3A%222015-06-01+17%3A00%3A00%22%2C%22appoint_etime%22%3A%222015-06-01+19%3A00%3A00%22%2C%22bill_receiver_name%22%3A%22%22%2C%22bill_tel%22%3A%22%22%2C%22bill_province_name%22%3A%22%22%2C%22bill_city_name%22%3A%22%22%2C%22bill_area_name%22%3A%22%22%2C%22bill_address%22%3A%22%22%2C%22bill_title%22%3A%22%22%2C%22bill_company_name%22%3A%22%22%2C%22cnfdet_flag%22%3A2%7D\",\"svcCode\":\"EC013\",\"msgSrc\":\"SDFPHP\"}",

LAST);

if (strcmp(lr_eval_string("{Sendorder_count}"),"0") == 0)

{

lr_end_transaction("Sendorder", LR_FAIL);

return 0;

}

else

{

lr_end_transaction("Sendorder", LR_PASS);

}

return 0;

}

4.捕获页面返回值

返回格式{"code":"0","msg":"%E6%88%90%E5%8A%9F","data":{"ord_sn":"9000003486"}}

将光标移动到脚本顶部，插入关联点insert-new step-service-web_reg_save_param

在脚本顶部，插入并修改脚本如下

web_reg_save_param("user_tags",

"LB=ord_sn\":\"",

"RB=\"]}",

LAST);

在脚本尾部，加入输出日志验证是否获取成功

lr_message ("user_tags:%s", lr_eval_string("{user_tags}"));

5.对我们的接口做自动化功能测试，写验证脚本如下：

if (atoi(lr_eval_string("{user_tags}"))==0)

lr_output_message("user_tags:%s,succeed!",(lr_eval_string("{user_tags}")));

else if(atoi(lr_eval_string("{user_tags}"))==1)

lr_output_message("user_tags:%s,failed!",(lr_eval_string("{user_tags}")));

else

lr_output_message("user_tags:%s,unknow!",(lr_eval_string("{user_tags}")));

6.参数化脚本

运行脚本

---------------------------------------END---------------------------------------

二、web_custom_request和web_submit_data区别

web_custom_request方法可以发送POST和GET类型的请求；

web_submit_data只能发送POST类型的请求；

所有web_submit_data方法发送的请求都可以使用web_custom_request来实现

web_custom_request可以实现web_submit_data无法实现的请求，比如“查询所有邮件并删除”这个案例中，查询时我们使用关联把所有邮件对应的标识抓取成一个数组，如果使用web_submit_data来完成这个删除的请求，需要很多个web_submit_data请求才能完成，但使用web_custom_request就可以通过一个请求完成，方法是自己写代码拼一个web_custom_request 方法POST请求的Body值。

1. web_submit_data

请求中提交的数据格式：“Name=属性名称,”,“Value=属性值”

例如：

"Name=username″,"Value=12044″, ENDITEM,

"Name=password″,"Value=123456″, ENDITEM,

"Name=typeId″,"Value=1″, ENDITEM,

如果想提交的某个属性包含包含多个值（比如说批量删除），单个web_submit_data就无法处理了，只能通过多个web_submit_data来处理。

2. web_custom_request

提交的数据（body）格式：“Body=属性名称=属性值&属性名称=属性值&……”

下面是一个典型的web_submit_data和web_custom_request请求，可以看到web_custom_request中提交的数据（body）是以这样的方式存在的，如下：

web_submit_data("searchRecvOrgsname",

"Action=http://{url}/searchRecvOrgsname",

"Method=POST",

"TargetFrame=",

"RecContentType=text/html",

"Referer=http://{url}/login_wj;jsessionid={jsessionid}",

"Snapshot=t18.inf",

"Mode=HTML",

ITEMDATA,

"Name=orgsId", "Value={orgsId}", ENDITEM,

"Name=code", "Value={order_end_station_code}", ENDITEM,

LAST);

web_custom_request("searchVehiclePopUp",

"URL=http://{url}/searchVehiclePopUp",

"Method=POST",

"TargetFrame=",

"Resource=0",

"RecContentType=text/html",

"Referer=http://{url}/login_wanjia;jsessionid={jsessionid}",

"Snapshot=t19.inf",

"Mode=HTML",

"EncType=application/x-www-form-urlencoded; charset=UTF-8",

"Body=&orgsId={orgsId}&order_start_station_id={order_start_station_id}&targetcode=order_truck_no&targetname=order_truck_name&targetid=order_truck_id",

LAST);

两种情况下的POST请求会被LoadRunner录制为web_custom_request：

1. 上文提到的批量提交多条同属性名称的数据的请求

2. header属性x-requested-by值为XMLHttpRequest的POST请求

这两种实现请求的方法还有一个需要注意的地方就是web_custom_request中body中的属性值如果包含一些特殊字符，必须通过URL编码，否则Web服务器会返回500错误，一个典型的例子是如果Body中包含ViewState，ViewState中常常有“=”之类的特殊字符，此时必须通过URL编码，LoadRuner中提供了一个这样的编码转换函数：

web_convert_param(“vs1″, “SourceEncoding=HTML”, “TargetEncoding=URL”, LAST);

3. web_custom_request函数详解

A.语法：

int web_custom_request( const char *RequestName, ,

[EXTRARES, ,] LAST );

B.返回值：返回LR_PASS（0）代表成功，LR_FAIL（1）代表失败。

C.参数：

(1)RequestName：步骤的名称，VuGen中树形视图中显示的名称。

(2)List of Attribute：属性列表，支持的属性有以下几种：

a.URL：页面地址。

b.Method：页面的提交方式，POST或GET。

c.TargetFrame：当前链接或资源所在Frame的名称。