最近在做HTTP协议接口压测时，遇到一些编写脚本方面的问题，在这里总结记录下，以便以后温习，也希望能帮助到和我有同样困惑的朋友吧。
//实战代码如下所示：
Action() { lr_start_transaction("事物"); // 断言内容：processcode":"0000","processdes:"处理成功" web_reg_save_param("processcode", "NotFound=warning", "LB=processcode":"", "RB=","processdes", "Ord=1", "Search=Body", LAST); web_reg_save_param("processdes", "NotFound=warning", "LB=processdes":"", "RB=","checkresult", "Ord=1", "Search=Body", LAST); //接口1：发送指定key:value参数的json报文 web_submit_data("request", "Action=http://IP:port/sss/idCardCheck11", "Method=POST", "Mode=HTTP", "RecContentType=application/json", ITEMDATA, "Name=msgbody", "Value={"app_sign":"287cca63e9316c031","businesscode":"05"," ""note":"","brnchcd":"4001","b64pic":"","inputtype":"11","teller":"2666"," ""idcardno":"139891119211X","name":"user","wthrespic":"1","app_id":null," ""bankcode":"31100396","timestamp":"1536118078193"}", ENDITEM, LAST); //接口2：发送json格式报文 web_custom_request("request", "Url=http://IP:port/sss/idCardCheck11", "Method=POST", "Mode=HTTP", "EncType=application/json", "RecContentType=application/json", "Body={"app_sign":"287cca63e9316c031","businesscode":"05","note":"","brnchcd":"4001"," ""b64pic":"","inputtype":"11","teller":"2666","idcardno":"139891119211X",""name":" ""user","wthrespic":"1","app_id":null,"bankcode":"31100396","timestamp":"1536118078193"}", LAST);
//响应报文key值和预期结果比较，如果等于0则请求处理成功 if(strcmp(lr_eval_string("{processcode}"),"0000") == 0){ lr_end_transaction("事物", LR_PASS); }else{ lr_end_transaction("事物", LR_FAIL); //事物失败后打印processdes字段的值，也就是错误信息，但是LR打印出来的中文出现乱码，所以这里做了转码的操作 lr_convert_string_encoding(lr_eval_string("{processdes}"),LR_ENC_UTF8,LR_ENC_SYSTEM_LOCALE,"resultMsg"); //解码后返回单笔核对请求处理成功 lr_error_message("错误信息:%s",lr_eval_string("{resultMsg}")); } // lr_end_transaction("事物",LR_AUTO); return 0; }
以下是web_submit_data()函数 API示例代码：
从示例可以看到发送的是name,value对，提交表单的形式，但实际Value值也可能存在json数组，xml等形式。
// web_submit_data() API示例 web_submit_data("default.aspx", "Action=http://lazarus/flightnet/default.aspx", "Method=POST", "TargetFrame=", "RecContentType=text/html", "Referer=http://lazarus/flightnet/", "Snapshot=t7.inf", "Mode=HTML", ITEMDATA, "Name=grpType", "Value=radRoundtrip", ENDITEM, "Name=lstDepartingCity", "Value=DEN", ENDITEM, "Name=lstDestinationCity", "Value=LAX", ENDITEM, "Name=btnAvailableFlights", "Value=Next >", ENDITEM, LAST );
接口请求报文如下：
msgbody:{app_sign:287cca63e9316c031,businesscode:05,note:,brnchcd:4001,b64pic:,inputtype:11,teller:2666,idcardno:139891119211X,name:user,wthrespic:1,app_id:null,bankcode:31100396,timestamp:1536118078193}
问题描述：
往常使用LR编写处理HTTP接口脚本，惯用的函数是web自定义请求函数 web_custom_request（），使用接口测试工具postman请求成功后就直接编写脚本，尝试了几种组body的方法均返回请求方法格式出错或者直接请求失败，尝试请求方法如下所示：
web_custom_request("request", "Url=http://10.148.0.161:1111/check/idCardCheck", "Method=POST", "Mode=HTTP", "EncType=application/json", "RecContentType=application/json", "Body={msgbody:{"app_sign":"287cca63e9316c031","businesscode":"05","note":"","brnchcd":"4001"," ""b64pic":"","inputtype":"11","teller":"2666","idcardno":"139891119211X",""name":" ""user","wthrespic":"1","app_id":null,"bankcode":"31100396","timestamp":"1536118078193"}}", LAST); web_custom_request("request", "Url=http://10.148.0.161:1111/check/idCardCheck", "Method=POST", "Mode=HTTP", "EncType=application/json", "RecContentType=application/json", "Body={"msgbody":{"app_sign":"287cca63e9316c031","businesscode":"05","note":"","brnchcd":"4001"," ""b64pic":"","inputtype":"11","teller":"2666","idcardno":"139891119211X",""name":" ""user","wthrespic":"1","app_id":null,"bankcode":"31100396","timestamp":"1536118078193"}}", LAST); web_custom_request("request", "Url=http://10.148.0.161:1111/check/idCardCheck", "Method=POST", "Mode=HTTP", "EncType=application/json", "RecContentType=application/json", "Body=msgbody:{"app_sign":"287cca63e9316c031","businesscode":"05","note":"","brnchcd":"4001"," ""b64pic":"","inputtype":"11","teller":"2666","idcardno":"139891119211X",""name":" ""user","wthrespic":"1","app_id":null,"bankcode":"31100396","timestamp":"1536118078193"}", LAST);
结论：如果提供的报文是key：value格式的就使用web_submit_data()函数，反之可选择使用web_custom_request（）函数，如以上内容表述或总结后期会不断完善。