[英]Can not deserialize value of type java.time.LocalDateTime from String
[英]Can not deserialize value of type int from String
這是我在控制台中得到的完整錯誤:
“無法讀取文檔:無法從字符串“ $ {product.id}”反序列化類型為int的值:在[Source:java.io.PushbackInputStream@40d1a098; line:1,column:14]處不是有效的Integer值↵ (通過參考鏈:haughton.dvdstore.model.AddToCartPojo [“ productId”]);嵌套異常為com.fasterxml.jackson.databind.exc.InvalidFormatException:無法從字符串“ $ {product.id}中反序列化為int類型的值“:不是有效的Integer值↵,位於[來源:java.io.PushbackInputStream@40d1a098;第1行,第14列](通過參考鏈:haughton.dvdstore.model.AddToCartPojo [“ productId”])”
我的HTML
<form method="post">
<p>Enter quantity you would like to purchase :
<input type="number" id="quantity" name="quantity" step="any" min="1" max="${product.quantityInStock}" value="1"></input>
</p>
<input type="submit" class="btn btn-primary" id="addToCart" name="button" value="Add to cart"/>
<input type="hidden" id="productId" value='${product.id}'/>
</form>
App.js
$("#addToCart").click(function(event) {
var data = {}
data["productId"] = $("#productId").val();
data["quantity"] = $("#quantity").val();
$.ajax({
type: "POST",
contentType: "application/json",
url: "http://localhost:8080/addToCart",
data: JSON.stringify(data),
dataType: 'json',
timeout: 600000,
success: function (data) {
console.log(data);
//...
},
error: function (e) {
//...
}
});
event.preventDefault();
});
控制者
@Controller
@Scope("session")
public class CartController {
@Autowired
private Cart cart;
@Autowired
ProductService productService;
@RequestMapping(value="/cart", method= RequestMethod.GET)
public String searchResults(Model model) {
model.addAttribute("cartLines",cart.getLines());
model.addAttribute("cartTotalPrice",cart.getTotalPrice());
return "cart";
}
@ResponseBody
@RequestMapping(value="/addToCart", method= RequestMethod.POST)
public String searchResults(@RequestBody AddToCartPojo addToCartPojo) {
Product product = productService.findById(((long) addToCartPojo.getProductId()));
if(product == null){
//if the productid supplied doesnt belong to a product in our database
return "failure";
}
FlashMessage result = cart.add(product,addToCartPojo.getQuantity());
return result.getStatus().toString();
}
添加到購物車
//pojo for sending via ajax
public class AddToCartPojo {
private int productId;
private int quantity;
public int getProductId() {
return productId;
}
public void setProductId(int productId) {
this.productId = productId;
}
public int getQuantity() {
return quantity;
}
public void setQuantity(int quantity) {
this.quantity = quantity;
}
}
我建議更改您的AddToCartPojo
以便productId
是String
而不是int
:
所以改變這個:
private int productId;
對此:
private String productId;
您還需要更改獲取器的n個設置器。
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