It's not angular's fault. Angular is designed to work in JSON world. So when $http service send AJAX request, it send all your data as a payload, not as form-data so that your backend application can handle it. But jQuery does some things internally. You instruct jQuery's $ajax module to bind form-data as JSON but before sending AJAX request, it serialized JSON and add application/x-www-form-urlencoded header. This way your backend application able to received form-data in form of post parameters and not JSON.

但是你可以修改angular $http服务的默认行为

添加标题 序列化json

$httpParamSerializerJQLike是angular的内置服务，它以同样的方式序列化json。jQuery的参数。

$http({
    method: 'POST',
    url: 'request-url',
    data: $httpParamSerializerJQLike(json-form-data),
    headers: {
      'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8;'
    }
});

如果你需要一个插件先将表单数据序列化成JSON，可以使用这个插件https://github.com/marioizquierdo/jquery.serializeJSON

我使用asp.net WCF webservices与angular js和以下代码 工作:

 $http({
        contentType: "application/json; charset=utf-8",//required
        method: "POST",
        url: '../../operation/Service.svc/user_forget',
        dataType: "json",//optional
        data:{ "uid_or_phone": $scope.forgettel, "user_email": $scope.forgetemail },
        async: "isAsync"//optional

       }).success( function (response) {

         $scope.userforgeterror = response.d;                    
       })

希望能有所帮助。

把你想要发送的数据作为第二个参数:

$http.post('request-url',  message);

另一种同样有效的形式是:

$http.post('request-url',  { params: { paramName: value } });

确保paramName与正在调用的函数的形参名称完全匹配。

来源:AngularJS后快捷方法

我喜欢使用函数将对象转换为post参数。

myobject = {'one':'1','two':'2','three':'3'}

Object.toparams = function ObjecttoParams(obj) {
    var p = [];
    for (var key in obj) {
        p.push(key + '=' + encodeURIComponent(obj[key]));
    }
    return p.join('&');
};

$http({
    method: 'POST',
    url: url,
    data: Object.toparams(myobject),
    headers: {'Content-Type': 'application/x-www-form-urlencoded'}
})

只是提出一个现代化版本的@FelipeMiosso的答案:

.config(["$httpProvider", function ($httpProvider) {

  function buildKey(parentKey, subKey) {
    return parentKey + "[" + subKey + "]";
  }

  function buildObject(key, value) {
    var object = {};
    object[key] = value;
    return object;
  }

  function join(array) {
    return array.filter(function (entry) {
      return entry;
    }).join("&");
  }

  function arrayToQueryString(parentKey, array) {
    return join(array.map(function (value, subKey) {
      return toQueryString(buildObject(buildKey(parentKey, subKey), value));
    }));
  }

  function objectToQueryString(parentKey, object) {
    return join(Object.keys(object).map(function (subKey) {
      return toQueryString(buildObject(buildKey(parentKey, subKey), object[subKey]));
    }));
  }

  function toQueryString(input) {
    return join(Object.keys(input).map(function (key) {
      var value = input[key];
      if (value instanceof Array) {
        return arrayToQueryString(key, value);
      } else if (value instanceof Object) {
        return objectToQueryString(key, value);
      } else if (undefined !== value && null !== value) {
        return encodeURIComponent(key) + "=" + encodeURIComponent(value);
      } else {
        return "";
      }
    }));
  }

  function isQueryStringEligible(input) {
    return null !== input && "object" === typeof input && "[object File]" !== String(input);
  }

  var interceptor = [function () {
    return {
      request: function (config) {
        if (0 <= ["post", "put", "patch"].indexOf(config.method.toLowerCase()) && isQueryStringEligible(config.data)) {
          config.headers["Content-Type"] = "application/x-www-form-urlencoded;charset=utf-8";
          config.data = toQueryString(config.data);
        }
        return config;
      }
    };
  }];

  $httpProvider.interceptors.push(interceptor);

}])

ES6版本:

.config(["$httpProvider", function ($httpProvider) {

  "use strict";

  const buildKey = (parentKey, subKey) => `${parentKey}[${subKey}]`;

  const buildObject = (key, value) => ({ [key]: value });

  const join = (array) => array.filter((entry) => entry).join("&");

  const arrayToQueryString = (parentKey, array) =>
    join(array.map((value, subKey) =>
      toQueryString(buildObject(buildKey(parentKey, subKey), value))));

  const objectToQueryString = (parentKey, object) =>
    join(Object.keys(object).map((subKey) =>
      toQueryString(buildObject(buildKey(parentKey, subKey), object[subKey]))));

  const toQueryString = (input) => join(Object.keys(input).map((key) => {
    const value = input[key];
    if (value instanceof Array) {
      return arrayToQueryString(key, value);
    } else if (value instanceof Object) {
      return objectToQueryString(key, value);
    } else if (undefined !== value && null !== value) {
      return `${encodeURIComponent(key)}=${encodeURIComponent(value)}`;
    } else {
      return "";
    }
  }));

  const isQueryStringEligible = (input) =>
    null !== input && "object" === typeof input && "[object File]" !== String(input);

  const interceptor = [() => ({
    request(config) {
      if (0 <= ["post", "put", "patch"].indexOf(config.method.toLowerCase()) && isQueryStringEligible(config.data)) {
        config.headers["Content-Type"] = "application/x-www-form-urlencoded;charset=utf-8";
        config.data = toQueryString(config.data);
      }
      return config;
    }
  })];

  $httpProvider.interceptors.push(interceptor);

}])

要通过Post方法和angularjs的$http发送数据，你需要改变

数据:"message=" +消息，数据:$.param({消息:消息})