ReactJS

Question

GET 请求成功运行，我现在正在尝试使用以下内容将 POST 转换为 url：

var data = {
  'Content-Type': 'application/json',
  'number': 'TEST12345'
}

var post = {
    "number": "TEST12345",
    "parameters":
    {
        "START_NUMBER" : {
          "value": 5,
          "effectiveDate": "2016/01/01 10:10"
        }
    }
}

var myInit = {
  method: 'POST',
  mode: 'cors',
  headers: data,
  body: JSON.stringify(post)
};

fetch('http://localhost:8080/form/upload/post/save', myInit)
.then(result=>{console.log(result.json())})

但我得到了以下日志：

一切似乎都是正确的，但为什么会出错：Uncaught (in promise) SyntaxError: Unexpected end of JSON input?

Answer 1

正文方法returns 承诺

fetch('http://localhost:8080/form/upload/post/save', myInit)
  .then(result => result.text())
  .then(data => console.log(data))

https://developer.mozilla.org/en-US/docs/Web/API/Body/text

ReactJS - fetch function: Why am I getting uncaught (in promise) SyntaxError: Unexpected end of JSON input?

ReactJS - fetch function: Why am I getting uncaught (in promise) SyntaxError: Unexpected end of JSON input?

javascript

json

fetch

react-jsx