[英]AngularJS and Spring MVC - $http 400 Bad Request
我正在嘗試發布一個包含id(int)和數組的對象,但是我從服務器端收到了HTTP 400 Bad請求響應。 這是我到目前為止所擁有的...
請求的Java Bean對象:
public class GuardarVentaRequest {
private Integer idCliente;
private List<Venta> venta; ... (Getters and Setters code)
Java對象:
public class Venta {
private Integer id;
private String nombre;
private Integer precio;
private Integer cantidad;
private Integer total; ... (Getters and Setters code)
Java控制器:
@RequestMapping(value = "/guardarVenta", method = RequestMethod.POST, produces = MediaType.APPLICATION_JSON_VALUE)
public @ResponseBody void venta(@RequestBody GuardarVentaRequest factura){
System.out.println(factura);
}
AngularJS服務:
function guardarVenta(array){
let factura = {
idCliente : parseInt($('#cliente').val()),
venta : array,
};
console.log(factura);
$http({
method: 'POST',
url: '/blue/guardarVenta',
contentType: 'application/json',
data: factura
}).then(
function successCallback(response){
console.log(response.statusText);
},
function errorCallback(response){
console.log(response.statusText);
}
);
}
陣:
$scope.productos = new Array();
let productoInfo = {
id: $scope.producto.id,
nombre: $scope.producto.nombre,
precio: $scope.producto.precio,
cantidad: $scope.cantidadProducto,
total: $scope.producto.precio * $scope.cantidadProducto
}
$scope.productos.push(productoInfo);
輸出:
ADVERTENCIA: Failed to read HTTP message:
org.springframework.http.converter.HttpMessageNotReadableException: Could
not read document: Can not construct instance of com.blue.beans.Venta: no
suitable constructor found, can not deserialize from Object value (missing
default constructor or creator, or perhaps need to add/enable type
information?)
at [Source: java.io.PushbackInputStream@663359f3; line: 1, column: 28]
(through reference chain: com.blue.beans.GuardarVentaRequest["venta"]-
>java.util.ArrayList[0]); nested exception is
com.fasterxml.jackson.databind.JsonMappingException: Can not construct
instance of com.blue.beans.Venta: no suitable constructor found, can not
deserialize from Object value (missing default constructor or creator, or
perhaps need to add/enable type information?)
at [Source: java.io.PushbackInputStream@663359f3; line: 1, column: 28]
(through reference chain: com.blue.beans.GuardarVentaRequest["venta"]-
>java.util.ArrayList[0])
有任何想法嗎?
試試這三件事。
將默認構造函數添加到GuardarVentaRequest和Venta。
GuardarVentaRequest(){}和Venta(){}
檢查是否已將HTTPMessageConverter添加到您的spring配置中。 例如: MappingJackson2MessageConverter (檢查與您的Spring版本的兼容性)。
嘗試使用angular.toJson序列化請求有效負載
希望有幫助!
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