Question

我正在构建一个应用程序，并使用下面的测试代码来测试角度http.Post（）

但是我收到一个奇怪的错误，我的预检没有成功。

客户端代码位于

之下

<!DOCTYPE html>
<html>
<script src= "http://ajax.googleapis.com/ajax/libs/angularjs/1.3.14/angular.min.js"></script>
<body>

<div ng-app="myApp" ng-controller="customersCtrl"> 

<ul>
    {{ names }}
</ul>

</div>

<script>
var app = angular.module('myApp', []);


app.controller('customersCtrl', function($scope, $http) {
  $http.post("http://ec2-52-3-54-45.compute-1.amazonaws.com/api/user/dogs",{id:'hello word!'})
  .success(function (response) {
    $scope.names = response});
});
</script>

</body>
</html>

另一端的.htaccess文件位于

之下

  Header set Access-Control-Allow-Methods "POST"
  Header set Access-Control-Allow-Origin "*"
RewriteEngine On

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ index.php [QSA,L]

应该处理这个问题的PHP是

<?php
header('Access-Control-Allow-Headers: Origin, X-Requested-With, Content-Type, Accept');
header( ‘Access-Control-Allow-Headers: Authorization, Content-Type’ );
header("Access-Control-Allow-Origin: *");

我不确定为什么我会收到此错误或我究竟做错了什么。非常感谢任何帮助或见解。

Answer 1

这个htaccess代码应该可以工作：

#include <vector>
#include <thread>
#include <stdexcept>

using namespace std;         // for expose only (don't do this in real code!!)
template <typename T> class Matrix
{
  using row = vector<T>;
  size_t _rows, _cols;
  vector<row> _matrix;
  Matrix(vector<row>&&); // defined elsewhere

  row sumLine(row const& first, row const& second) const
  {
    row result;                          // don't tempt the compiler to default
    result.reserve(_cols);               // initialise result[i] for all columns
    for(size_t c=0; c!=_cols; ++c)
      result.emplace_back(first[c]+second[c]);
    return result;                       // return is fast (no copy!)
  }

  Matrix<T> operator+ (const Matrix<T>& other) const;
};

template <typename T>
Matrix<T> Matrix<T>::operator+(const Matrix<T>&other) const
{
  if(other._cols != _cols)
    throw std::runtime_error("column number mismatch in Matrix+Matrix");
  if(other._rows != _rows)
    throw std::runtime_error("row number mismatch in Matrix+Matrix");
  vector<thread> threads; threads.reserve(_rows);
  vector<row> result(_rows);
  for(size_t r=0; r!=_rows; ++r)
    threads.emplace_back([&,r]() {
        result[r] = Matrix<T>::sumLine(_matrix[r],other._matrix[r]);
      });
  for(size_t r=0; r!=_rows; ++r)
    threads[r].join();
  return move(result);
}

template class Matrix<double>;

Angularjs在发出POST请求之前发出OPTIONS请求

CORS预检频道未成功 - 客户端 - 服务器

1 个答案: