Question

我正在尝试将我的.js文件中的参数传递给控制器。

"fnCreatedRow" : function(nRow, aData, iDataIndex) {
            $(nRow).attr("row-id", aData["channelRole"]);
            $(nRow).hover(function(event) {
                var row = $(event.target.parentNode);
                row.addClass('row-selected');
            }, function(event) {
                var row = $(event.target.parentNode);
                row.removeClass('row-selected');
            });
            $(nRow).click(function(event) {
                var row = $(event.target.parentNode);
                document.location.href = "role-service-search.json?id=" + row.attr("row-id");
            });
        }

我需要将角色传递给下面的控制器代码。但是当我调试时，控制器中角色的值为null。当我没有通过角色以及通过上面的脚本传递角色时，下面的代码必须工作。

@RequestMapping(value = "/role-service-search", method = RequestMethod.GET )
public void searchRoleService(@ModelAttribute("request") final PageableRoleServiceSearchRequest request, final String role,
                   final BindingResult result) {
    if (request.getInput() == null) {
        RoleServiceSearchRequest newReq= new RoleServiceSearchRequest();
        if(role!=null)
        {
            newReq.setChannelRole(role);
        }

        request.setInput(newReq);
    }
}

Answer 1

您需要使用class ViewController: UIViewController, UICollectionViewDelegate, UICollectionViewDataSource { var imageArroy = [UIImage(named: "1"), UIImage(named: "2"), UIImage(named: "3"), UIImage(named: "5"), UIImage(named: "6")] var imageArroyB = [UIImage(named: "a"), UIImage(named: "b"), UIImage(named: "c"), UIImage(named: "d"), UIImage(named: "e")] var labelA: ["Electronics", "Cars", "Pets", "Mobiles", "Food"] var labelB: ["UK", "Ireland", "India", "Germany", "Other EU"] @IBOutlet weak var CollectionViewA: UICollectionView! @IBOutlet weak var CollectionViewB: UICollectionView! override func viewDidLoad() { super.viewDidLoad() CollectionViewA.delegate = self CollectionViewB.delegate = self CollectionViewA.dataSource = self CollectionViewB.dataSource = self } func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int { if collectionView == self.CollectionViewA { return 0 // Replace with count of your data for collectionViewA } return 0 } func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell { if collectionView == self.CollectionViewA { let cellA = collectionView.dequeueReusableCell(withReuseIdentifier: "CollectionCellA", for: indexPath) as! CollectionCellA // Set up cell return cellA } else { let cellB = collectionView.dequeueReusableCell(withReuseIdentifier: "CollectionCellB", for: indexPath) as! CollectionCellB // ...Set up cell return cellB } }注释方法参数role，以告诉框架如何映射查询参数。

@RequestParam

由于您在网址中将其称为@RequestMapping(value = "/role-service-search", method = RequestMethod.GET ) public void searchRoleService( @ModelAttribute("request") final PageableRoleServiceSearchRequest request, @RequestParam(name = "id", required = false) final String role, final BindingResult result) { if (request.getInput() == null) { RoleServiceSearchRequest newReq= new RoleServiceSearchRequest(); if(role!=null) { newReq.setChannelRole(role); } request.setInput(newReq); } }，因此您必须提供角色参数名称id。否则，您可以重命名URL中的参数。

将参数从.js文件传递到控制器

1 个答案: