使用带有AngularJS的Java REST服务的javascript(更新、删除问题)
我用Java实现了一个REST服务,当我用Postman测试它时,所有HTTP方法都能正常工作。现在我决定学习更多关于AngularJS的知识,并将其添加到使用REST服务中。GET请求工作正常,所有产品都显示在html页面上。但由于某些原因,Delete和Put方法根本不起作用。我很难找出这种行为的原因
我注意到,涉及产品id的方法出现了问题。实体产品。java有一个名为prod\u id的id字段。
应用程序。js
angular.module("AppProducts", [])
.constant("baseUrl", "http://localhost:8080/webstore/product")
.controller("ProductsCtrl", function ($scope, $http, baseUrl) {
$scope.currentView = "table";
//Works correctly
$scope.showAll = function () {
$http.get(baseUrl).success(function (data) {
$scope.products = data;
});
}
//if product exists, copy it, otherwise new empty
$scope.editOrCreate = function (product) {
$scope.currentProduct = product ? angular.copy(product) : {};
$scope.currentView = "edit";
}
$scope.create = function (product) {
$http.post(baseUrl, product).success(function (product) {
$scope.products.push(product);
$scope.currentView = "table";
});
}
$scope.update = function (product) {
$http({
url: baseUrl + product.prod_id,
method: "PUT",
data: product
}).success(function (modifiedItem) {
for (var i = 0; i < $scope.products.length; i++) {
if ($scope.products[i].prod_id == modifiedItem.prod_id) {
$scope.products[i] = modifiedItem;
break;
}
}
$scope.currentView = "table";
});
}
$scope.delete = function (product) {
// HTTP DELETE
$http({
method: "DELETE",
url: baseUrl + product.prod_id
}).success(function () {
$scope.products.splice($scope.products.indexOf(product), 1);
});
}
// Save changes
$scope.saveEdit = function (product) {
if (angular.isDefined(product.prod_id)) {
$scope.update(product);
} else {
$scope.create(product);
}
}
$scope.cancelEdit = function () {
$scope.currentProduct = {};
$scope.currentView = "table";
}
$scope.sortType = 'brand'; // set the default sort type
$scope.sortReverse = false; // set the default sort order
$scope.searchProduct = ''; // set the default search/filter term
$scope.showAll();
});
表格视图
<table id="myTable" class="table table-hover">
<thead>
<tr>
<th>Brand</th>
<th>Product Name</th>
<th>Description</th>
<th>Price</th>
<th width="100"></th>
<th width="100"></th>
</tr>
</thead>
<tbody>
<tr ng-repeat="product in products | orderBy:sortType:sortReverse">
<td>{{product.brand}}</td>
<td>{{product.productName}}</td>
<td>{{product.description}}</td>
<td>{{product.price}}</td>
<td><button class="btn btn-success" ng-click="editOrCreate(product)">Edit</button></td>
<td><button class="btn btn-danger" ng-click="delete(product)">Delete</button></td>
</tr>
</tbody>
</table>
RestController“删除”方法
@RequestMapping(value = "/product/{id}", method = RequestMethod.DELETE)
public ResponseEntity<?> deleteProduct(@PathVariable("id") int id) {
Product product = productService.getProductById(id);
if (product == null) {
return new ResponseEntity(new CustomError("Unable to delete. Product with id " + id + " not found."),
HttpStatus.NOT_FOUND);
}
productService.deleteProduct(id);
return new ResponseEntity<Product>(HttpStatus.NO_CONTENT);
}
# 1 楼答案
这可能就是问题所在。当您像这样附加url时
您将得到结果字符串http://localhost:8080/webstore/product1,该字符串未在后端中定义。尝试将分配更改为以下内容:
或者只需在baseurl的末尾添加一个
/
。像这样: