我正在尝试学习React,我正在与Axios合作进行XHR API调用。就像我所做的一切一样,首先要做的是阅读文档。我按照以下文档实现了XHR调用:https://github.com/svrcekmichal/redux-axios-middleware#dispatch-action
不知何故,当请求失败时,会触发.then()
子句而不是.catch
子句。
我对于出了什么问题愚蠢地打我的头,我无法理解。下面是我如何实施Axios:
App.js:
const client = axios.create({
baseURL:'http://localhost:8080/api',
responseType: 'json'
});
const axiosMiddle = axiosMiddleware(client)
const createStoreWithMiddleware = applyMiddleware(thunk, axiosMiddle)(createStore)
Component.js:
handleLogin(event) {
const credentials = {
username: this.state.username,
password: this.state.password
}
this.props.login(credentials)
.then((response) => {
console.log(response)
console.log('SUCCESS')
})
.catch((response) => {
console.log('ERROR')
})
}
Action.js:
export function login(credentials) {
return {
type: ['LOAD','AWESOME','OH_NO'],
payload: {
request: {
url: '/login/',
method: 'POST',
data: {
username: credentials.username,
password: credentials.password
}
}
}
}
}
并且console.log输出:
HTTP Failure in Axios Error: Network Error
at createError (createError.js:16)
at XMLHttpRequest.handleError (xhr.js:87)
Root.jsx:82 {type: "LOAD,AWESOME,OH_NO_FAIL", error: {…}, meta: {…}}error: {data: "Network Error", status: 0}meta: {previousAction: {…}}type: "LOAD,AWESOME,OH_NO_FAIL"__proto__: Object
Root.jsx:83 SUCCESS
慢慢地我疯了,不知怎的,我不知道如何解决它。有人能帮帮我吗?
答案 0 :(得分:1)
在component.js中,你的登录没有进行任何异步调用,相反,它只返回一个对象,那里不会发生错误,这就是为什么它总是会结束" SUCCESS"。并且console.log(响应)总是打印登录返回的对象。
因此,您应该实际执行异步请求,而不是简单地返回对象。实际执行请求的方法是dispatch(login(credentials))
。