lr-web services协议

1、web services协议简介

web services协议是建立可交互操作的分布式应用程序的新平台，它通过一系列标准和协议来保证程序之间的动态链接，其中最基本的协议包括soap，wsdl，uddi。

2、若开发只给了一个webservices的url，未提供报文请求格式，要怎么操作？http://www.webxml.com.cn/WebServices/WeatherWebService.asmx?wsdl

用soap ui工具可获得

1）新建soap项目，命名且输入wsdl url，点击ok即可；

2）可查看到该url下的所有接口，双击你要查看的接口名，就可以在右边窗口查看到响应的请求报文；

3、loadrunner操作

创建web services脚本，以获取天气预报服务为例；http://www.webxml.com.cn/WebServices/WeatherWebService.asmx

a、此次运用了三个模式来创建脚本请求：web_service_call、soap_request、web_custom_request

b、请求中带中文，不转码导致得到的响应非所期望的，此时需要转码，如下：

lr_convert_string_encoding("深圳",NULL,"utf-8","cityname");
          lr_save_string(lr_eval_string("{cityname}"),"cityname");

c、响应中由于有中文显示出为乱码，转码如下：

lr_convert_string_encoding(lr_eval_string("{response}"),"utf-8",NULL,"msg");

d、若响应时一个xml，可用lr_xml_get_values()

例：lr_xml_get_values("XML={response}",
        "Query=/Envelope/Body/getWeatherbyCityNameResponse/getWeatherbyCityNameResult/string[2]",
                      "ValueParam=getcityname",
                      LAST);

web_service_call模式：

1）在SOA Tools中选中Manage Services

2）导入url地址

3）直接点击ok

4）在SOA Tools里点击add service call

5）选择好服务名、接口和soap，再填写输入参数

6）填写输出参数名

点击ok后，在loadrunner里生成了web_service_call请求；

对脚本请求做修改，添加事物、if判断，脚本如下：

Action()
{
        lr_start_transaction("获取天气预报城市名");
        web_service_call( "StepName=getWeatherbyCityName_101",//步骤名称 
        "SOAPMethod=WeatherWebService|WeatherWebServiceSoap|getWeatherbyCityName",//服务名称 soap  获取那个接口 （城市天气预报） 
        "ResponseParam=response",//返回的参数信息 
        "Service=WeatherWebService",//webservice的服务 
        "ExpectedResponse=SoapResult",//请求的返回
        "Snapshot=t1555823842.inf",//快照 
        BEGIN_ARGUMENTS,//输入参数 开始 
        "theCityName={cityname}",//请求输入，城市=深圳或者其它城市名称 
        END_ARGUMENTS,//结束参数 
        BEGIN_RESULT,//返回值的开始 
        "getWeatherbyCityNameResult/*[2]=Param_string",//返回参数保存在Param_string
        END_RESULT,//返回值 的结束 
        LAST);
        if (strcmp(lr_eval_string("{Param_string}"),lr_eval_string("{cityname}"))==0)
        {
        lr_end_transaction("获取天气预报城市名", LR_PASS);
        }
        else
        {
        lr_end_transaction("获取天气预报城市名", LR_FAIL);
        }
        
    return 0;
}

soap request模式：

1）在SOA Tools下选中import SOAP；

2）选中soap的xml文件，根据例子，填写好url和soap actions；

3）点击ok，生成一个soap_request请求在脚本里；

4)修改脚本，添加if判断，脚本如下：

Action()
{
    lr_convert_string_encoding(lr_eval_string("{getcity}"),NULL,"utf-8","cityname");
    lr_save_string(lr_eval_string("{cityname}"),"cityname1");
    lr_start_transaction("获取城市天气预报");
    soap_request("StepName=SOAP Request",    //步骤名称                                     
        "URL=http://www.webxml.com.cn/WebServices/WeatherWebService.asmx",//请求的url地址                                         
        "SOAPEnvelope="//发送到服务器的xml包 
        "<soap:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\">"
            "<soap:Body>"
                "<getWeatherbyCityName xmlns=\"http://WebXml.com.cn/\">"
                    "<theCityName>{cityname1}</theCityName>"
                "</getWeatherbyCityName>"
            "</soap:Body>"
        "</soap:Envelope>",                                        
        "SOAPAction=http://WebXml.com.cn/getWeatherbyCityName",                                        
        "ResponseParam=response",    //存储服务器 响应的输出参数名称                                     
        "Snapshot=t1555845699.inf",                                        
        LAST);

//lr_convert_string_encoding(lr_eval_string("{response}"),"utf-8",NULL,"msg");
    //lr_output_message("msg结果：%s",lr_eval_string("{msg}"));
    lr_xml_get_values("XML={response}",
        "Query=/Envelope/Body/getWeatherbyCityNameResponse/getWeatherbyCityNameResult/string[2]",
                      "ValueParam=getcityname",
                      LAST);

if (strcmp(lr_eval_string("{getcityname}"),lr_eval_string("{getcity}"))==0)
        {
        lr_end_transaction("获取城市天气预报", LR_PASS);
        lr_output_message("获取指定城市天气成功");
        }
        else
        {
        lr_end_transaction("获取城市天气预报", LR_FAIL);
        lr_output_message("获取指定城市天气失败");
        }
    
    return 0;
}

web_custom_request模式：

1）此模式较简单，与http协议post请求方法一致：

2）脚本Action()

{
    lr_convert_string_encoding(lr_eval_string("{getcity}"),NULL,"utf-8","cityname0");
    lr_save_string(lr_eval_string("{cityname0}"),"cityname1");
    web_reg_save_param_ex(
        "ParamName=recityname",
        "LB=<string>",
        "RB=</string>",
        "Ordinal=ALL",
        SEARCH_FILTERS,
        LAST);
    lr_start_transaction("获取城市天气预报");

web_custom_request("web_custom_request",
        "URL=http://www.webxml.com.cn/WebServices/WeatherWebService.asmx",
        "Method=POST",
        "TargetFrame=",
        "Resource=0",
        "Referer=",
        "Mode=HTTP",
        "EncType=text/xml; charset=utf-8",
        "Body=<?xml version=\"1.0\" encoding=\"utf-8\"?>"
"<soap:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\">"
  "<soap:Body>"
    "<getWeatherbyCityName xmlns=\"http://WebXml.com.cn/\">"
      "<theCityName>{cityname1}</theCityName>"
    "</getWeatherbyCityName>"
  "</soap:Body>"
"</soap:Envelope>",
        LAST);
    lr_convert_string_encoding(lr_eval_string("{recityname_2}"),"utf-8",NULL,"recityname_2");
    lr_save_string(lr_eval_string("{recityname_2}"),"recityname");
    if (strcmp(lr_eval_string("{recityname}"),lr_eval_string("{cityname}"))==0)
    {
        lr_end_transaction("获取城市天气预报", LR_PASS);
        lr_output_message("获取城市天气预报成功");

}
    else
    {
        lr_end_transaction("获取城市天气预报", LR_PASS);
        lr_error_message("获取城市天气预报失败");
    }

return 0;
}