Javascript 未使用角Post函数执行操作
在这里,我将Angular与struts结合使用,我是Angular的新手 我有一个控制器(controller.js),其中我使用post方法调用action类(CartAction) 从controller.js中的post调用action/StrutsAngular/ControllerAction.do时,我没有发现任何错误 但是action类没有执行,甚至system.out.println也没有执行。 当我在成功功能中添加警报时,我能够获得输入页面。 当我给出错误的路径时,我进入了错误函数 我不明白为什么不采取行动 我还有另一个澄清,如果在本例中-->如果调用该操作,我可以从中获取响应数据 前面我使用了jQuery,还提供了我使用的示例代码。 我们如何使用AngularJS以类似的方式完成它 请帮助我,让我知道的情况下,进一步的信息 提前感谢您的回答 Controller.jsJavascript 未使用角Post函数执行操作,javascript,angularjs,Javascript,Angularjs,在这里,我将Angular与struts结合使用,我是Angular的新手 我有一个控制器(controller.js),其中我使用post方法调用action类(CartAction) 从controller.js中的post调用action/StrutsAngular/ControllerAction.do时,我没有发现任何错误 但是action类没有执行,甚至system.out.println也没有执行。 当我在成功功能中添加警报时,我能够获得输入页面。 当我给出错误的路径时,我进入了错
function Controller($scope,$http) {
$http.post('/StrutsAngular/ControllerAction.do').
success(function(data, status, headers, config) {
// this callback will be called asynchronously
// when the response is available
alert("Success :: "+data);
}).
error(function(data, status, headers, config) {
// called asynchronously if an error occurs
// or server returns response with an error status.
alert("Error :: "+data);
});
}
public class CartAction extends org.apache.struts.action.Action {
/**
* This is the action called from the Struts framework.
*
* @param mapping The ActionMapping used to select this instance.
* @param form The optional ActionForm bean for this request.
* @param request The HTTP Request we are processing.
* @param response The HTTP Response we are processing.
* @throws java.lang.Exception
* @return
*/
@Override
public ActionForward execute(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response)
throws Exception {
System.out.println("Entering Shop Cart Action");
List<Object> objectList= new ArrayList<>();
CartDto cartDto = new ShopingCartDto();
cartDto.setSno(1);
cartDto.setTitle("Title One");
objectList.add(cartDto);
response.setHeader("cache-control","no-cache");
response.setContentType("text/json");
PrintWriter out = response.getWriter();
JSONArray jsonArray = JSONArray.fromObject(objectList);
out.println(jsonArray.toString());
return null;
}
}
行动类
function Controller($scope,$http) {
$http.post('/StrutsAngular/ControllerAction.do').
success(function(data, status, headers, config) {
// this callback will be called asynchronously
// when the response is available
alert("Success :: "+data);
}).
error(function(data, status, headers, config) {
// called asynchronously if an error occurs
// or server returns response with an error status.
alert("Error :: "+data);
});
}
public class CartAction extends org.apache.struts.action.Action {
/**
* This is the action called from the Struts framework.
*
* @param mapping The ActionMapping used to select this instance.
* @param form The optional ActionForm bean for this request.
* @param request The HTTP Request we are processing.
* @param response The HTTP Response we are processing.
* @throws java.lang.Exception
* @return
*/
@Override
public ActionForward execute(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response)
throws Exception {
System.out.println("Entering Shop Cart Action");
List<Object> objectList= new ArrayList<>();
CartDto cartDto = new ShopingCartDto();
cartDto.setSno(1);
cartDto.setTitle("Title One");
objectList.add(cartDto);
response.setHeader("cache-control","no-cache");
response.setContentType("text/json");
PrintWriter out = response.getWriter();
JSONArray jsonArray = JSONArray.fromObject(objectList);
out.println(jsonArray.toString());
return null;
}
}
JSP
<%--
Document : Cart
Created on : 25 Mar, 2014, 5:14:42 PM
Author : Arun
--%>
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html ng-app>
<head>
<title>Cart</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="description" content="">
<meta name="author" content="">
<script src="js/lib/angularjs-1.0.2/angular.js"></script>
<script src="js/lib/controllers/controllers.js"></script>
<link href="js/lib/bootstrap/css/bootstrap.css" rel="stylesheet">
</head>
<body ng-controller='Controller'>
<div class="container">
<form name="shoppingForm" id="formId">
<table class="table table-striped table-hover">
<caption></caption>
<thead>
<tr>
<th>S No</th>
<th>Item</th>
</tr>
</thead>
<tr ng-repeat='item in items | orderBy:title | filter:search' >
<td ><input ng-model='item.sno' class="form-control" size="3" placeholder="Quantity" maxlength="3" required></td>
<td ><input ng-model='item.title' class="form-control" size="10" maxlength="10" placeholder="Item Name" required></td>
</tr>
</table>
<div><button class="btn btn-lg btn-success btn-block">Submit</button></div>
</form>
</div>
</body>
</html>
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好的,您有一些问题,其中大多数似乎是对角度如何工作的误解。有一篇关于jQuery背景下的“角度思考”的文章非常棒:
要根据到目前为止的代码为您提供一些详细信息:
首先,您需要创建一个应用程序(angular.module),为其分配ng app属性。例如:
var myApp = angular.module('myApp',[]); // this creates a new angular module named "myApp";
<html ng-app="myApp"> // this will bootstrap your myApp module at the html DOM element once the domIsReady event fires
var myApp=angular.module('myApp',[]);//这将创建一个名为“myApp”的新角度模块;
//一旦触发DomsReady事件,这将在html DOM元素引导myApp模块
其次,需要在模块上使用Angular定义控制器,并传递函数。有一个角度的方法,但我建议在尝试之前用标准的方法
myApp.controller('myCtrl', function ($scope,$http) {
$http.post('/StrutsAngular/ControllerAction.do').
success(function(data, status, headers, config) {
// this callback will be called asynchronously
// when the response is available
alert("Success :: "+data);
}).
error(function(data, status, headers, config) {
// called asynchronously if an error occurs
// or server returns response with an error status.
alert("Error :: "+data);
});
});
<div ng-controller="myCtrl">
myApp.controller('myCtrl',函数($scope,$http){
$http.post('/StrutsAngular/ControllerAction.do')。
成功(函数(数据、状态、标题、配置){
//将异步调用此回调
//当响应可用时
警报(“成功::”+数据);
}).
错误(函数(数据、状态、标题、配置){
//发生错误时异步调用
//或服务器返回带有错误状态的响应。
警报(“错误::”+数据);
});
});
最后,传递给controller()的函数只会被调用一次,并且只有在它被用于某个地方之后才会被调用。因此,在本例中,绑定到DIV将在加载DOM时产生一个$http.post权限。它不会做任何其他事情。我想这只是你在测试它到了那里。对于“真实”代码,您将通过$scope公开某些函数,并从视图中调用它们:
myApp.controller('myCtrl', function ($scope,$http) {
$scope.sendData = function() {
$http.post(.....your other code....);
}
});
<div ng-controller="myCtrl"><a ng-click="sendData()">send data</a></div>
myApp.controller('myCtrl',函数($scope,$http){
$scope.sendData=函数(){
$http.post(……您的其他代码……);
}
});
发送数据
您还可以分享绑定控制器和引导ng应用程序的HTML吗?@Mattpillegi我添加了前端jsp供您参考,如果需要更多信息,请告诉我现在我了解了如何开始,非常感谢,按照建议,我创建了该服务,并尝试了初始加载和单击两种方式,但现在仍然无法调用Action类。。如果有进一步的信息,请告诉我……我在struts-config.xml中发现了问题,这里的tag validate中的问题应该是no