[英]how to delete record in spring mvc using angularjs request
frontend code 前端代码
<button data-ng-click="deleteRec()" id="Delete">delete</button>
var app = angular.module('myApp', ['ngResource']);
app.controller('UserController', ['$scope', '$resource',function($scope,$resource)
{
$scope.deleteRec = function()
{
User = $resource(
'delete/:username',
{method:'DELETE', params: {username: '@username'}});
User.delete({username: $scope.myform.username}).then(function successCallback(response)
{
$scope.Message = response;
}, function errorCallback(response) {
});
$scope.myform.username = "";
$scope.myform.phone="";
$scope.myform.email="";
$scope.myform.address="";
$scope.myform.password="";
};
}]);
controller code 控制器代码
@RequestMapping(value="/delete/{username}")
public @ResponseBody String delete(@PathVariable("username") String username)
{
String user=retrievedataservice.delete(username);
return null;
}
error came like this TypeError: User.delete(...).then is not a function Actually, User is a object and delete() method to pass the parameter in spring Controller method delete(). 错误是这样的TypeError:User.delete(...)。然后不是函数实际上,User是一个对象,并且是delete()方法,用于在spring控制器方法delete()中传递参数。
As I refereed with the docs, 正如我在文档中提到的那样,
User.delete is a Class action return an empty instance (with one of the additional properties below) User.delete是一个Class操作,返回一个空实例(具有下面的其他属性之一)
$promise
: The promise of the original server interaction that created this instance or collection. $promise
:创建该实例或集合的原始服务器交互的承诺。
So you need to call the $promise
of the instance. 因此,您需要调用实例的
$promise
。
var app = angular.module('myApp', ['ngResource']);
app.controller('UserController', ['$scope', '$resource',function($scope,$resource)
{
$scope.deleteRec = function()
{
User = $resource(
'delete/:username',
{method:'DELETE', params: {username: '@username'}});
User.delete({username: $scope.myform.username}).$promise.then(function successCallback(response)
{
$scope.Message = response;
}, function errorCallback(response) {
});
$scope.myform.username = "";
$scope.myform.phone="";
$scope.myform.email="";
$scope.myform.address="";
$scope.myform.password="";
};
}]);
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