Question

我有一个弹簧控制器，它应该从angularjs工厂接收sessionAttribute中的数据。

我的Spring Controller是：

@Controller
@SessionAttributes("dataObject")
public class ScreenDesignerController extends BaseController {
    /**
    * Injected screen designer service class.
    */
    @Autowired
    private ScreenDesigner screendiService;

    @RequestMapping(value = "FormBuilder", method = RequestMethod.POST)
    public final String knowDetails(
        @ModelAttribute("globalUser") User globalUser,
        @RequestParam(value = "dataObject") String myJsonStr,
        BindingResult result, RedirectAttributes redirectAttributes,
        final Model model
    ) throws Exception {

        try {
            logger.info("this is json array: " + myJsonStr);
            screendiService.addData(myJsonStr);
        } catch (Exception e) {
            logger.info("inside customiseForm POST catch");
        }
        return "ScreenDesigner/FormBuilder";
    }

Angular工厂：

indApp.factory('sendJsonDataService', function ($http, $rootScope, superCache) {

    var sendjsondataservice = {

        sendJsonData: function () {
            //dataObject = JSON.stringify(superCache.get('super-cache'));
            alert(JSON.stringify(dataObject));
            res = $http.post('FormBuilder', dataObject);
            res.success(function(data, status, headers, config) {
                alert("Your Screen has been saved successfully into the database!");
            });
            res.error(function(data, status, headers, config) {
                alert( "failure message: " + JSON.stringify({data: data}));
            });

        }
    };
    return sendjsondataservice; 
});

每当我通过angularjs控制器调用工厂来接收＆＃34; dataObject＆＃34;时，它会说'＆＃34;错误的请求400＆＃34;，尽管＆＃34; dataObject＆＃34;有有效的json数据。我希望我的弹簧控制器能够接收这些数据。请帮助，卡住两天吧:( 在此先感谢!!

Answer 1

如果您要将JSON作为POST有效内容发送，则应使用@RequestBody而不是@RequestParam。

Answer 2

你知道我修改了你的控制器：

@Controller
@SessionAttributes("dataObject")
public class ScreenDesignerController extends BaseController {
    /**
    * Injected screen designer service class.
    */
    @Autowired
    private ScreenDesigner screendiService;

    @RequestMapping(value = "FormBuilder", method = RequestMethod.POST)
    public final String knowDetails(@RequestBody String myJsonStr,@ModelAttribute("globalUser") User globalUser,
        BindingResult result, RedirectAttributes redirectAttributes,
        final Model model
    ) throws Exception {

        try {
            logger.info("this is json array: " + myJsonStr);
            screendiService.addData(myJsonStr);
        } catch (Exception e) {
            logger.info("inside customiseForm POST catch");
        }
        return "ScreenDesigner/FormBuilder";
    }

另一个确保从AngularJS工厂发送json数据。例如：

headers: {
        'Content-type': 'application/json'
    }

将数据从AngularJS工厂发送到Spring Controller

2 个答案: