loadrunner 在socket接口测试中的应用(转）

http://www.qatnt.com/bbs/forum.php?mod=viewthread&tid=5223

最近尝试用LR测试公司营帐系统的协议接口，使用了LR中socket协议的基本函数，实现了发送请求数据，接收返回数据并从返回数据中截取到指定范围的字符串rspcode，并转换回整形，实时反馈测试结果的功能
respcode:200=正常
附Action源码，具体包的信令因涉及到项目信息不公布。
#include "lrs.h"
Action()
{
char *buf0;
int ActucalNumber;
int respcode;
int length;
int Numberofbuf0;
lrs_create_socket("socket0", "TCP", "RemoteHost=172.16.11.170:8888",LrsLastArg);
lrs_send("socket0", "buf0", LrsLastArg);
lrs_receive("socket0", "buf1", LrsLastArg);

lrs_get_buffer_by_name("buf0",&buf0,&Numberofbuf0);
//获取send buf的包的长度,在修改发送包buf0的时候自动统计包长
ActucalNumber=lrs_get_last_received_buffer_size("socket0");
//socket接收到buf动态包长，由于返回的数据包的包长动态变化，所以lrs_save_param_ex操作时需要获取ActualNumber
lrs_save_param_ex("socket0","received",NULL,0,ActucalNumber,"ascii","param1");
//获取返回数据的字符串
lrs_save_param_ex("socket0","received",NULL,32,4,"ascii","param2");
//respcode在接口返回字符串中的位置为32~36
length=strlen(lr_eval_string("<param2>"));
//获取rspcode字符串的长度，lrs_hex_string_to_int函数用
lrs_hex_string_to_int(lr_eval_string("<param2>"),length,&respcode);
//字符型转换成整形，方便在日志中查看respcode结果
lrs_close_socket("socket0");
lr_output_message("-----------------------------------INFO---------------------------------------");
lr_output_message("The length of resp is %d", ActucalNumber);
lr_output_message("The content of resp is %s", lr_eval_string("<param1>"));
lr_output_message("The content of respcode is %s", lr_eval_string("<param2>"));
lr_output_message("Respcode is %i", respcode);
lr_output_message("包长度：%d",Numberofbuf0);
    return 0;
}
同时也使用python实现了类似的测试代码，下回分解.