如何在 React Native android 中获得响应 header？

Question

您好，我想在获取 POST 请求后得到响应 header。我尝试调试以查看 response 和 console.log(response) 中的内容。我可以从 responseData 获得响应主体，但我不知道如何获得 header。我想同时获得 header 和 body。请帮忙。谢谢:)

这是我所做的示例：

   fetch(URL_REGISTER, {
      method: 'POST',
      body: formData
    })
      .then((response) => response.json())
      .then((responseData) => {
        if(responseData.success == 1){
          this.setState({
            message1: responseData.msg,
          });
        }
        else{
          this.setState({
            message1: responseData.msg,
          });
        }
      })
      .done();
    },

Answer 1

您可以从 response.headers

中获取 headers

fetch(URL_REGISTER, {
  method: 'POST',
  body: formData
})
  .then((response) => {
    console.log(response.headers); //Returns Headers{} object
}

Answer 2

你可以这样做

  fetchData() {
  var URL_REGISTER = 'https://www.example.com';
  fetch(URL_REGISTER, {method: 'POST',body: formData})
      .then(
          function(response) {
              console.log(response.headers.get('Content-Type'));
              console.log(response.headers.get('Date'));

              console.log(response.status);
              console.log(response.statusText);
              console.log(response.type);
              console.log(response.url);
              if (response.status !== 200) {
                  console.log('Status Code: ' + response.status);
                  return;
              }

              // Examine the text in the response
              response.json().then(function(data) {
                  console.log(data);
              });
          }
      )
      .catch(function(err) {
          console.log('Fetch Error', err);
      });
}

阅读有关获取的更多信息：Introduction to fetch()

Answer 3

你应该 return response.json() 喜欢
return response.json();

如何在 React Native android 中获得响应 header？

How to get response header in react native android?

javascript

android

response

xmlhttprequest

react-native