java - 发送Json数据到Spring Controller

Question

我正在尝试将 json 数据从 Angular Post 发送到 Spring Controller ，但在控制台中收到 404 :

POST http://localhost:8080/app/orderDetails/saveOrder/[object%20Object],[object%20Object] 404 (Not Found)

JS

var i=0;
var j = ngCart.getCart().items.length;
$scope.list=[];
for(i;i<j;i++){
    $scope.list.push({
          'id': ngCart.getCart().items[i]._id,
          'quantity':ngCart.getCart().items[i]._quantity
        });
    }
 $http.post("/app/orderDetails/saveOrder/"+$scope.list) 

Java(Spring)

@RequestMapping(value = "/saveOrder/list",headers="Accept=application/json")

public @ResponseBody Object saveOrder(@PathVariable List list){
}   

Answer 1

您不能将List用作PathVariable。改为 RequestBody 并修复您的 JS 代码以将 $scope.list 作为正文发送，而不是将其附加到 url:

-$http.post("/app/orderDetails/saveOrder/"+$scope.list)
+$http.post("/app/orderDetails/saveOrder", $scope.list); 

还创建一个带有 id 和 quantity 字段的包装对象，例如:

public class CartItem {
    private Long id;
    private Long quantity;
    //getters and setters
}

然后您将能够使用此对象参数化您的List:

- public @ResponseBody Object saveOrder(@PathVariable List list){
+ public @ResponseBody Object saveOrder(@RequestBody List<CartItem> list){