issue KendoUI and SpringMVC with json binding - json

Question

When I use a grid KendoUI, there is a problem with SpringMVC and jackson.
In fact, the grid datasource take a json with the format :
[{"name":"Apple","description":"a description","value":15}]
However, SpringMVC serialize it like :
{"name":"Apple","description":"a description","value":15}
without square bracket in String, so this grid doesn't bind values.
e.g code :
#RequestMapping(value="/product", method = RequestMethod.GET)
public #ResponseBody Product get(Model model) {
Product app = new Product("Apple", "a description", 15);
return app;
}
#RequestMapping(value="/product/json", method = RequestMethod.GET)
public #ResponseBody String getJson(Model model) {
return"[{\"name\":\"Apple\",\"description\":\"a description\",\"value\":15}]";
}

Answer 1

You can use dataSource.schema.parse to manually intercept and parse that string representing your JSON into valid JavaScript Array.

Answer 2

Below should work. Kendo Grid is expecting a JSON array, thus the block quotes.
For READ :
#RequestMapping(value = "/list", method = RequestMethod.GET)
public #ResponseBody
List<Product> list() {
Product apple = new Product("Apple", "a description", 15);
List<Product> listProduct = new ArrayList<Product>();
listProduct.add(apple);
return listProduct;
}

Answer 3

#RequestMapping(value="/product", method = RequestMethod.GET)
public #ResponseBody Product[] get(Model model) {
Product app = new Product("Apple", "a description", 15);
return new Product[]{app};
}
or
#RequestMapping(value="/product", method = RequestMethod.GET)
public #ResponseBody List<Product> get(Model model) {
List<Product> product = new ArrayList<Product>();
product.add(new Product("Apple", "a description", 15));
product.add(new Product("Guice","a guice",3));
return product;
}