Hi,

Please find the solution.

<aura:component controller="OrderAuraController">
    <aura:handler name="init" value="{!this}" action="{!c.doInit}" />
     
 	<aura:attribute name="OrderItemList" type="List"  />
    
             
              <table class="slds-table slds-table_bordered slds-table_cell-buffer">
            <thead>
                <tr class="slds-text-title_caps">
                    <th scope="col">
                        <strong><div class="slds-truncate" title="TotalPrice">TotalPrice</div></strong>
                    </th>
                    <th scope="col">
                        <strong><div class="slds-truncate" title="Quantity">Quantity</div></strong>
                    </th>
                   
                </tr>
            </thead>
            <tbody>
                <aura:iteration items="{!v.OrderItemList}" var="con"> 
                    <tr>
                        <th scope="row" data-label="TotalPrice">
                            <div class="slds-truncate" title="{!con.TotalPrice}">{!con.TotalPrice}</div>
                        </th>
                        <th scope="row" data-label="Quantity">
                            <div class="slds-truncate" title="{!con.Quantity}">{!con.Quantity}</div>
                        </th>
                      
                    </tr>
                </aura:iteration> 
            </tbody>
        </table>
        
             
            
</aura:component>

({
    doInit: function(component, event, helper) {
        
        helper.getContactList(component, event, helper);
    }
     
    
})

({
    getContactList: function(component, event, helper) {
        var action = component.get("c.getOrderData");
         
        action.setCallback(this, function(result) {
            var state = result.getState();
            if (component.isValid() && state === "SUCCESS"){
                var resultData = result.getReturnValue();
                component.set("v.OrderItemList", resultData);
                 
            }
        });
        $A.enqueueAction(action);
    }
})

public class OrderAuraController {
    @AuraEnabled
    public static List<OrderItem> getOrderData() {
         List<Order> orderList=new List<Order>([Select Id from Order limit 100]);
		 
		 List<OrderItem> orderItemList=new List<OrderItem>([Select Id,TotalPrice,Quantity from OrderItem where orderid in : orderList]);
        
        return orderItemList;
    }
     
     
}

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Thank You