wso2 DSS值类型不匹配,应为值类型-“dateTime”,但找到-“STRING”

我想用wso2-dss将这个对象保存到数据库中。但这表明日期格式有错误。

Value type miss match, Expected value type - 'dateTime', but found - 'STRING'

post messgae的示例如下

{
"insert_subscribe_merchant_operation":
{
        "customerrefid": 1,
        "merchantrefid": "1",
        "datetime": "2012-03-14T00:00:00+05:30",
        "registereddevice":"1234567890",
        "latlongregistered": "xczv",
        "totalpoints":1000,
        "redeemablepoints":800,
        "expirydate": "2012-03-14T00:00:00+05:30",
        "qrcode": "xvc",
        "currentoffercount":10,
        "schemerefid":1
      }
}

但当我尝试使用xml类型时,它工作得很好

<insert_subscribe_merchant_operation>
         <customerrefid>1</customerrefid>
         <merchantrefid>"1"</merchantrefid>
         <datetime>2012-03-14T00:00:00+05:30</datetime>
         <registereddevice>"1234567890"</registereddevice>
         <latlongregistered>"234"</latlongregistered>
         <totalpoints>876</totalpoints>
         <redeemablepoints>345</redeemablepoints>
         <expirydate>2012-03-14T00:00:00+05:30</expirydate>
         <qrcode>"?"</qrcode>
         <currentoffercount>20</currentoffercount>
         <schemerefid>1</schemerefid>
</insert_subscribe_merchant_operation>

请帮帮我!!!!