LoadRunner的xml協議使用

思考曾經做過的一個黃金交易系統，裏面針對後端進行報文發送，報文均是採用的xml格式，只不過傳輸和接受前後需要進行加解密，現在想來如果不是由於加解密包採用的是java，那我們完全可以採用LR的原生態C函數和XML協議函數做到更爲優雅的測試腳本，利用LR的xml函數對整個xml報文實現動態封轉。
函數：lr_xml_get_values
Action()
{
    char *xml_input=
            "<love>"
                "<name_man>LHT</name_man>"
                "<name_women>PHOEBE</name_women>"
            "</love>";

    lr_save_string(xml_input,"xml_param");

    lr_xml_get_values("XML={xml_param}",
          "ValueParam=OutputParam1",
          "Query=/love/name_man",
          LAST);

     lr_xml_get_values("XML={xml_param}",
          "ValueParam=OutputParam2",
          "Query=/love/name_women",
          LAST);

     lr_message("husband is:%s",lr_eval_string("{OutputParam1}"));

     lr_message("wife is:%s",lr_eval_string("{OutputParam2}"));

    return 0;
}
//output

husband is:LHT
wife is:PHOEBE

函數：lr_xml_set_values

Action1() {

    char * xml_input =
   
    "<acme_org>"
   
           " <accounts_dept>"
   
                  "<employee>"
   
                         " <name>John Smith</name>"
   
                         "<cubicle>227</cubicle>"
   
                         "<extension>2145</extension>"
   
                  "</employee>"
   
           "</accounts_dept>"
   
           "<engineering_dept>"
   
                  "<employee>"
   
                         "<name>Sue Jones</name>"
   
                         "<extension>2375</extension>"
   
                  "</employee>"
   
           "</engineering_dept>"
   
    "</acme_org>";


       int i, NumOfValues;

       char buf[64];


       lr_save_string(xml_input, "XML_Input_Param"); // Save input as parameter

       lr_save_string("lht", "ExtensionParam_1");

       lr_save_string("phoebe", "ExtensionParam_2");

       lr_xml_set_values("XML={XML_Input_Param}",

              "ResultParam=NewXmlParam",

              "ValueParam=ExtensionParam",

              "SelectAll=yes",

              "Query=//extension",

              LAST);


       NumOfValues= lr_xml_get_values("XML={NewXmlParam}",

              "ValueParam=OutputParam",

              "Query=//extension",

              "SelectAll=yes", LAST);


       for ( i = 0; i < NumOfValues; i++) { /* Print the multiple values of MultiParam */

              sprintf (buf, "Retrieved value %d : {OutputParam_%d}", i+1, i+1);

              lr_output_message(lr_eval_string(buf));

       }


       lr_message("new xml is:%s",lr_eval_string("{NewXmlParam}"));

       return 0;

}
//output：

Virtual User Script started
Starting action vuser_init.
Ending action vuser_init.
Running Vuser...
Starting iteration 1.
Starting action Action.
Action.c(11): "lr_xml_get_values" succeeded, 1 match processed
Action.c(16): "lr_xml_get_values" succeeded, 1 match processed
husband is:LHT
wife is:PHOEBE
Ending action Action.
Starting action Action1.
Action1.c(47): "lr_xml_set_values" succeeded, 2 matches processed
Action1.c(60): "lr_xml_get_values" succeeded, 2 matches processed
Action1.c(73): Retrieved value 1 : lht
Action1.c(73): Retrieved value 2 : phoebe
new xml is:<acme_org> <accounts_dept><employee> <name>John Smith</name><cubicle>227</cubicle><extension>lht</extension></employee></accounts_dept><engineering_dept><employee><name>Sue Jones</name><extension>phoebe</extension></employee></engineering_dept></acme_org>
Ending action Action1.
Ending iteration 1.
Ending Vuser...
Starting action vuser_end.
Ending action vuser_end.
Vuser Terminated.