Question

我试图对我的其他php服务器进行$ http调用时遇到问题。我正在从客户端到后端进行跨域调用。

在我的Angular应用程序中，这是$ http服务的配置方式：

.config(['$httpProvider', function($httpProvider) {
    $httpProvider.interceptors.push('httpResponseInterceptor');
    $httpProvider.interceptors.push('httpTimeStampMarker');
    $httpProvider.defaults.useXDomain = true;
    $httpProvider.defaults.headers.post['Access-Control-Allow-Origin'] = '*';
    $httpProvider.defaults.headers.post['Content-Type'] = 'application/x-www-form-urlencoded';
    delete $httpProvider.defaults.headers.common['Content-Type, X-Requested-With'];
}])

这是实际的$ http.post（）的配置方式：

    // Set the headers
    var headers = {
        'Access-Control-Allow-Origin': '*',
        'Access-Control-Allow-Methods': 'POST, GET, OPTIONS, PUT',
        'Content-Type': 'application/x-www-form-urlencoded',
        'Accept': '*'
    };

    return $http({
            method: "POST",
            url: base_url,
            data: $.param(args),
            headers: headers
        })
        .success(function(data, status) {

        })
        .error(function(data, status) {

        });

这是服务器的.htaccess：

# Cors
Header add Access-Control-Allow-Origin "*"
Header add Access-Control-Allow-Headers "Origin, X-Requested-With, Content-Type, Access-Control-Allow-Origin, Access-Control-Allow-Methods"
Header add Access-Control-Allow-Methods "PUT, GET, POST, DELETE, OPTIONS"

预检请求很顺利：

**Request headers:**
Accept:*/*
Accept-Encoding:gzip, deflate, sdch
Accept-Language:en-US,en;q=0.8
Access-Control-Request-Headers:access-control-allow-origin, accept, access-control-allow-methods, content-type
Access-Control-Request-Method:POST
Connection:keep-alive
Host:***
Origin:***
Referer:***
User-Agent:Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.95 Safari/537.36

**Response headers**
Access-Control-Allow-Headers:Origin, X-Requested-With, Content-Type, Access-Control-Allow-Origin, Access-Control-Allow-Methods
Access-Control-Allow-Methods:PUT, GET, POST, DELETE, OPTIONS
Access-Control-Allow-Origin:*
Allow:OPTIONS,GET,HEAD,POST
Connection:Keep-Alive
Content-Length:0
Content-Type:httpd/unix-directory
Date:Fri, 26 Dec 2014 07:12:24 GMT
Keep-Alive:timeout=5, max=100
Server:Apache/2.4.9 (Unix) PHP/5.6.2

但是实际的帖子请求失败了：

XMLHttpRequest cannot load http://***/. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin '***' is therefore not allowed access. The response had HTTP status code 404.

这些是请求和响应标头：

**Request headers**
    Accept:*
    Accept-Encoding:gzip, deflate
    Accept-Language:en-US,en;q=0.8
    Access-Control-Allow-Methods:POST, GET, OPTIONS, PUT
    Access-Control-Allow-Origin:*
    Connection:keep-alive
    Content-Length:130
    Content-Type:application/x-www-form-urlencoded
    Host:***
    Origin:http://***
    Referer:***
    User-Agent:Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.95 Safari/537.36


**Response headers**
Connection:Keep-Alive
Content-Length:198
Content-Type:text/html; charset=iso-8859-1
Date:Fri, 26 Dec 2014 07:12:24 GMT
Keep-Alive:timeout=5, max=99
Server:Apache/2.4.9 (Unix) PHP/5.6.2

我显然在帖子请求的回复中遗漏了一些标题。

然而，它失败的问题确实在预检请求中有效。我已经尝试在其余服务器的index.php中添加一些头文件，但是请求没有到达那里并且更早被卡住（我猜是在加载.htaccess时）。

我在这里缺少什么？

Answer 1

几个小时后，我终于找到了它。

我的.htaccess：

# Cors
Header always set Access-Control-Allow-Origin "*"
Header always set Access-Control-Allow-Headers "Origin, X-Requested-With, Content-Type, Access-Control-Allow-Origin"
Header always set Access-Control-Allow-Methods "PUT, GET, POST, DELETE, OPTIONS"

@Alexey Rodin给出的提示几乎是正确的。而不是改变＆＃34;添加＆＃34;到＆＃34;设置＆＃34;它应设置为＆＃34;始终设置＆＃34;。

这site帮助了我：

关于AngularJS，我可以确认CORS无需其他设置。因此，Angular的$ http不需要使用标题左右更改，默认设置应该与上述.htaccess条目一起使用。

Answer 2

尝试在.htaccess

上使用set代替add

Header set Access-Control-Allow-Origin "*"

查看更多here

AngularJS，PHP Restful Cors问题

2 个答案: