我有一个angularJS表单,它将数据发布到Java Servlet,但我没有看到请求通过; 没有调用servlet"create".
这是我的代码:
的test.html
<body>
<form ng-controller="UserController">
<legend>Create User</legend>
<label>Name</label>
<input type="text" id="name" name="name" ng-model="name" placeholder="User Name">
<label>Email</label>
<input type="text" id="email" name="email" ng-model="email" placeholder="ur email here">
<label>Password</label>
<input type="text" id="pwd" name="pwd" ng-model="pwd" placeholder="ur own pwd here">
<button ng-submit="createUser()" class="btn btn-primary">Register</button>
</form>
</body>
的script.js
function UserController($scope, $http) {
$scope.user = {};
$scope.createUser = function() {
$http({
method : 'POST',
url : '/create',
data : 'name=' + $scope.user.name + '&email=' + $scope.user.email,
headers : {
'Content-Type' : 'application/x-www-form-urlencoded'
}
})
}
我的servlet如下,但它不打印"发布"全部.
public class FirstServlet extends HttpServlet
{
/**
*
*/
private static final long serialVersionUID = 1L;
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException
{
System.out.println("Get");
}
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException
{
System.out.println("Post");
}
}
Web服务器是jetty,web.xml如下:
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
version="2.4"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<servlet>
<servlet-name>createUser</servlet-name>
<servlet-class>servlet.FirstServlet</servlet-class>
<load-on-startup>0</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>createUser</servlet-name>
<url-pattern>/create</url-pattern>
</servlet-mapping>
</web-app>
Chr*_*art 32
要将数据发布到Web服务器,您需要将表单值绑定到$ scope中的对象,然后将该对象提交给脚本.
诀窍是将整个对象"user"提交给服务器,Angular将自动将其格式化为JSON.此外,ng-model标签没有使用"user".
另外需要注意的是,您可能希望在完成请求时为应用程序添加一些内容.您可以使用方法".success(function(data){})"和".error(...)"来执行此操作(这些是promise $ http返回的方法).
我已经包含了PHP和Servlet代码; 但是,对于所有服务器脚本(来自Angular的JSON数据)都是一样的.
HTML
<body>
<form ng-controller="UserController" ng-submit="createUser()">
<legend>Create User</legend>
<label>Name</label>
<input type="text" id="name" name="name" ng-model="user.name" placeholder="User Name">
<label>Email</label>
<input type="text" id="email" name="email" ng-model="user.email" placeholder="ur email here">
<label>Password</label>
<input type="text" id="pwd" name="pwd" ng-model="user.pwd" placeholder="ur own pwd here">
<button class="btn btn-primary">Register</button>
</form>
</body>
</html>
调节器
function UserController($scope, $http) {
$scope.user = {};
$scope.createUser = function() {
$http({
method : 'POST',
url : '/create',
data : $scope.user
})
}
示例服务器代码:PHP
$data = file_get_contents("php://input");
$objData = json_decode($data);
$pwd = $objData -> pwd;
$user = $objData -> name; //etc
示例服务器代码:JAVA Servlet
JSONObject jObj = new JSONObject(request.getParameter("mydata")); // this parses the json
Iterator it = jObj.keys(); //gets all the keys
while(it.hasNext())
{
String key = it.next(); // get key
Object o = jObj.get(key); // get value
//do something with it here
//you can also do:
String user = jObj.get("user");
}
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