curl --location --request POST 'https://api.qugongbao.com/gst-api/' \
--header 'Content-Type: application/json' \
--data-raw '{
"custNo": "string",
"custName": "string",
"contractNo": "string",
"contractName": "string",
" spCode": "string",
" spName": "string",
"validateBeginDate": "string",
"validateEndDate": "string",
"contractStatus": "string"
}'{}