XML标记串
<?xml version="1.0" encoding="UTF-8"?><XMLInfo><sysAccount>44190035546000</sysAccount><passWord>c2bb1d875b4683d31b1149baad1cb831</passWord><businessType>1</businessType><billNoAmount>3</billNoAmount></XMLInfo>

BASE64加密输入参数
PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTgiPz48WE1MSW5mbz48c3lzQWNjb3VudD40NDE5MDAzNTU0NjAwMDwvc3lzQWNjb3VudD48cGFzc1dvcmQ+YzJiYjFkODc1YjQ2ODNkMzFiMTE0OWJhYWQxY2I4MzE8L3Bhc3NXb3JkPjxidXNpbmVzc1R5cGU+MTwvYnVzaW5lc3NUeXBlPjxiaWxsTm9BbW91bnQ+MzwvYmlsbE5vQW1vdW50PjwvWE1MSW5mbz4K

urlcode编码
PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTgiPz48WE1MSW5mbz48c3lzQWNjb3VudD40NDE5MDAzNTU0NjAwMDwvc3lzQWNjb3VudD48cGFzc1dvcmQ%2bYzJiYjFkODc1YjQ2ODNkMzFiMTE0OWJhYWQxY2I4MzE8L3Bhc3NXb3JkPjxidXNpbmVzc1R5cGU%2bMTwvYnVzaW5lc3NUeXBlPjxiaWxsTm9BbW91bnQ%2bMzwvYmlsbE5vQW1vdW50PjwvWE1MSW5mbz4K

接口地址:
http://os.ems.com.cn:8081/zkweb/bigaccount/getBigAccountDataAction.do?method=getBillNumBySys&xml=PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTgiPz48WE1MSW5mbz48c3lzQWNjb3VudD40NDE5MDAzNTU0NjAwMDwvc3lzQWNjb3VudD48cGFzc1dvcmQ%2bYzJiYjFkODc1YjQ2ODNkMzFiMTE0OWJhYWQxY2I4MzE8L3Bhc3NXb3JkPjxidXNpbmVzc1R5cGU%2bMTwvYnVzaW5lc3NUeXBlPjxiaWxsTm9BbW91bnQ%2bMzwvYmlsbE5vQW1vdW50PjwvWE1MSW5mbz4K

返回值格式:
PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0idXRmLTgiPz48cmVzcG9uc2U+PHJlc3VsdD4wPC9yZXN1bHQ+PGVycm9yRGVzYz7lj6/nlKjnmoTmoIflh4blv6vpgJLor6bmg4XljZXlj7fkuI3otrM8L2Vycm9yRGVzYz48ZXJyb3JDb2RlPkUwMjk8L2Vycm9yQ29kZT48L3Jlc3BvbnNlPg==

BASE64解密返回值
<?xml version="1.0" encoding="utf-8"?><response><result>0</result><errorDesc>可用的标准快递详情单号不足</errorDesc><errorCode>E029</errorCode></response>