ajax请求之json复合参数

var data = {
	"reqHead": {
		"token": "123456",
		"transCode": "123456",
		"openId": "123456",
		"transTime": "2018-02-12 15:28:02"
	},
	"reqBody": {
		"userId":"123456",
		"recordId":"123456"
	}
};

$.ajax({
	url : 'http://wx.vyanke.com/exam/examAction!examBank.action',
	type:'POST',
	dataType: "json",//必须
        //headers: {'Content-Type': 'application/json'},
	contentType : "application/json;charsetset=UTF-8",//必须
        data : JSON.stringify(data),//必须
        success : function(data) {
	    var d = JSON.stringify(data);
	    console.log(d);
        }
});