loadunner使用socket协议来实现多客户端连接同一服务器脚本（使用到IP欺骗技术）

第一部分：

#include "lrs.h"

vuser_init()
{
lrs_startup(257);

return 0;
}

第二部分：

Action()
{

char *ReturnValue_Remote;
char *ReturnPort_Remote;
char *ReturnValue_Local;
char *ReturnPort_Local;
char *AcutalBuffer;
int BufferSize;

char *ip;

//编写获取LR分配的Vuser IP函数，将IP保存在ip变量中。
ip=lr_get_vuser_ip();

if(ip)

lr_vuser_status_message("the ip address is %s:",ip);
else

lr_vuser_status_message("IP spooler disabled");

//输出获取到lr分配的ip值。
lr_output_message("the current assign ip is :%s",ip);

//将ip变量保存到一个参数中,并输出该参数的值。
lr_save_string(ip,"VirtualIP");
lr_output_message( lr_eval_string("{VirtualIP}"));

//在lrs_create_socket函数中localhost使用<>:<>形式来参数化
lrs_create_socket("socket0","TCP","LocalHost=<VirtualIP>:<RandomPort>","RemoteHost=192.168.1.113:8888",LrsLastArg);

while(1)

{

ReturnValue_Remote=lrs_get_socket_attrib("socket0",REMOTE_ADDRESS);
ReturnPort_Remote=lrs_get_socket_attrib("socket0",REMOTE_PORT);
ReturnValue_Local=lrs_get_socket_attrib("socket0", LOCAL_ADDRESS);
ReturnPort_Local=lrs_get_socket_attrib("socket0",LOCAL_PORT);

lr_start_transaction("获取远程主机地址及端口");

lr_output_message("this RemoteHost address is %s :", ReturnValue_Remote);

lr_output_message("this RemoteHost Port is %s : ",ReturnPort_Remote);

lr_end_transaction("获取远程主机地址及端口", LR_AUTO);

lr_start_transaction("获取本机地址及端口");

lr_output_message("this LocalHost address is %s :", ReturnValue_Local);

lr_output_message("this LocalHost Port is %s : ",ReturnPort_Local);

lr_end_transaction("获取本机地址及端口", LR_AUTO);

// lr_think_time(3);

lr_start_transaction("发送数据包");

lrs_send("socket0","buf0",LrsLastArg);

lr_end_transaction("发送数据包", LR_AUTO);

lr_start_transaction("获取BUFF数据大小及内容");

lrs_get_buffer_by_name("buf0",&AcutalBuffer,&BufferSize);

lr_output_message("buf0 size is %d :",BufferSize);

lrs_save_param_ex("socket0","user",AcutalBuffer,0,BufferSize,"ascii","param");

lr_output_message("the contect buf0 is %s :",lr_eval_string("<param>"));

lr_end_transaction("获取BUFF数据大小及内容", LR_AUTO);

}

lrs_disable_socket("socket0",DISABLE_SEND);

lrs_close_socket("socket0");

return 0;
}

第三部分：

#include "lrs.h"

vuser_end()
{

// lrs_disable_socket("socket0",DISABLE_SEND);

// lrs_close_socket("socket0");

lrs_cleanup();

return 0;
}

第四部分：

;WSRData 2 1

send buf0 32

"\x41\x45\x48\x50\x0B\x00\x00\x00\x01\xFF\xFF"    ==》心跳包数据
-1