我正在尝试获取以下端点输出的消息:
http://helloworld-env-2.5fwknpgms8.us-east-2.elasticbeanstalk.com/
我只是运行了一个create-react-app来创建我的应用程序,并更改了App.js文件中的代码
新代码:
import React, { Component } from 'react';
import './App.css';
class App extends React.Component {
constructor(props){
super(props);
this.state = {
error: null,
isLoaded: false,
items: ""
};
}
componentDidMount(){
console.log("mounting component");
fetch("http://helloworld-env-2.5fwknpgms8.us-east-2.elasticbeanstalk.com/")
.then((result) => {
this.setState({
isLoaded: true,
items: result
});
});
}
render() {
console.log("rendering");
const isLoaded = this.state.isLoaded;
if(isLoaded){
return (<div> {this.state.items} </div>);
}
else{
return (
<div>loading</div>
);
}
}
}
export default App;
我一直收到加载消息。
答案 0 :(得分:2)
您需要解析提取的响应:
componentDidMount(){
fetch("http://helloworld-env-2.5fwknpgms8.us-east-2.elasticbeanstalk.com/")
.then((result) => result.json()) // here
.then((result) => {
const { a } = result; // access 'a' key from response
this.setState({
isLoaded: true,
items: a
});
});
}
这里是docs。