POST /ERPApi/api/router/json?key=bsm6_erp2 HTTP/1.1
Content-Length: 199
Content-Type: application/x-www-form-urlencoded;charset=utf-8
Expect: 100-continue
Host: 218.64.5.95
User-Agent: iWMSApp3.0

key=bsm6_erp2&api=bserp.buyrecordsdet.list.get&biz=%7b%22page_size%22%3a500%2c%22page_index%22%3a5%2c%22LastChanged%22%3a-1%7d&time=2016-08-18+10%3a37%3a22&v=1.0&sign=d47e401290f61e40375bab4da0933dbd

key:bsm6_erp2
api:bserp.buyrecordsdet.list.get
biz:{"page_size":500,"page_index":5,"LastChanged":-1}
time:2016-08-18 10:37:22
v:1.0
sign:d47e401290f61e40375bab4da0933dbd