The value of sessionID is null

Phenomena: If you use the following statements to debug the value of SessionID, the SessionID value will be null in the Execution Log after the script is played back.

lr_output_message(lr_eval_string("SessionID-------->"));
lr_output_message(lr_eval_string("{SessionID}"));

Solution: The function (as follows)

web_reg_save_param("SessionID","LB=ID =","RB=\r\n",LAST);

to obtain Session ID should be placed before the second HTTP request. Do not place it before the first request.

web_custom_request("AXDispatcher.aspx_2", "URL=http://172.17.1.29/servlet/ AXDispa
  tcher",
		"Method=POST",
		"Resource=1",
		"RecContentType=text/plain",
		"Referer=",
		"Binary=1",
		"EncType=",
		"Body="
		"\\x1F\\x8B\\x08\\x00\\x00\\x00\\x00\\x00\\x00\\x0B"
		"SPf`"
		"\\xD0"
		"cHd("
		"\\x00\\xC2"
		"T"
		"\\x86"
		"|"
		"\\x86"
		"<"
		"\\x86"
		"x"
		"\\x86"
		"d "
		"\\x9D\\x02\\xE4\\xC5\\x03"
		"q"
		"\\x05"
		"P."
		"\\x17"
		"("
		"\\x97\\x03"
		"d"
		"\\x17\\x03"
		"E"
		"\\x12\\x81"
		"\""
		"\\x8C\\x0C"
		"@"
		"\\xC0\\x02\\xC4"
		"L"
		"\\x0C\\x00\\x9D\\x84\\xA2\\xD6"
		"?"
		"\\x00\\x00\\x00"
		"",
		LAST);