@RequestBody 参数是对象数组列表，前后台传参

后台

@Data
public class OrderMap {
    private Long id;//订单标识
    private Long pId;//商品标识
    private Long sId;//规格id
    private Integer num;//购买规格的数量
}

@PostMapping("/pay")
    public ModelAndView createMOrder(@RequestBody List orderMaps) throws WxPayException {
        ModelAndView mv = new ModelAndView();
        //mv.addObject("wxPayMpOrderResult",wxPayMpOrderResult);
        mv.setViewName("mobile/order/pay/payindex");
        return mv;
    }

前台

$('#submit_order').on('click', function() {
        var data=new Array();
        $(".order-detail").each(function(i){
            var orderObject={pId:$(this).attr("productId"),sId:$(this).attr("specId"),num:$(this).attr("count")};
            data[i]=orderObject;
        });
        $.ajax({
            type: "POST",
            url: /*[[@{/mobile/order/pay}]]*/ "",
            contentType:"application/json",
            dataType:"json",
            cache:false,
            data: JSON.stringify(data),
            success: function(data){
                console.log("success",data);
                if(data.msg==1){
                    alert("success");
                }else{
                    alert("error");
                }
            }
        });
    });

 

form 提交数组列表

@Data
@Builder
@AllArgsConstructor
@NoArgsConstructor
public class Order {
    private Long id; // 订单标识
    private List maps;
}

@PostMapping("/paym")
    public ModelAndView createMOrder(Order order) throws WxPayException {
        ModelAndView mv = new ModelAndView();
        //mv.addObject("wxPayMpOrderResult",wxPayMpOrderResult);
        mv.setViewName("mobile/order/pay/payindex");
        return mv;
    }

 js提交

$("#payForm").submit();