Javascript 使用ARc/React/Redux将数据从组件传递到动作和传奇

我习惯于设置一个新项目，对数据是如何传递的感到困惑。我只是使用一个表单发布一些登录数据，在我的操作/传奇中似乎无法将数据发送到帖子本身（这意味着，我的登录表单组件拥有数据并试图发送数据，但在发送操作后，值未定义）

打算将表单值放入redux存储（更新onChange以便在Submit上可以访问，而不是像我现在这样放弃），但想先让这个版本工作，然后再继续，这样我就知道实际发生了什么

如果这里缺少必要的信息，请告诉我

LoginFormContainer：

import React, { Component } from 'react'
import PropTypes from 'prop-types'
import { connect } from 'react-redux'
import { userLoginRequest } from 'store/actions'
import { fromUser } from 'store/selectors'
import { LoginForm } from 'components'

class LoginFormContainer extends Component {
  static propTypes = {
    login: PropTypes.func.isRequired,
  }

  onSubmit = (event) => {
    event.preventDefault()
    const serialize = new FormData(event.target)
    const loginData = {
      email: serialize.get('email'),
      password: serialize.get('password'),
    }
    this.props.login(loginData)
  }

  render() {
    return <LoginForm handleSubmit={this.onSubmit} />
  }
}

const mapStateToProps = (state) => ({
  user: fromUser.getUser(state),
})

const mapDispatchToProps = (dispatch, { loginData }) => ({
  login: () => dispatch(userLoginRequest(loginData)),
})

export default connect(mapStateToProps, mapDispatchToProps)(LoginFormContainer)

传奇故事：

import { take, put, call, fork } from 'redux-saga/effects'
import api from 'services/api'
import * as actions from './actions'

// This doesn't know what loginData is (undefined)
export function* login(loginData) {
  try {
    const encoded = window.btoa(`${loginData.email}:${loginData.password}`)
    const data = yield call(api.post, '/login', { Authorization: `Basic ${encoded}` })
    yield put(actions.userLoginSuccess(data))
  } catch (e) {
    yield put(actions.userLoginFailure(e))
  }
}
export function* watchUserLoginRequest() {
  while (true) {
    const { data } = yield take(actions.USER_LOGIN_REQUEST)
    yield call(login, data)
  }
}

export default function* () {
  yield fork(watchUserLoginRequest)
}

---

感谢@dagatsoin帮助我们朝着正确的方向前进

mapDispatchToProps应为：

const mapDispatchToProps = (dispatch) => ({
  login: (loginData) => dispatch(userLoginRequest(loginData)),
})

---

如果在onSubmit中执行

console.log（serialize）

，您会得到什么？loginData和serialize很好-当调用this.props.login时，它知道它是什么（即{电子邮件：“asdfasf”，密码：“asfsf”}）。然后就过去了_(ツ)_/''在mapDispatchProps的第二个参数中，您分解了loginData。它不应该被分解，是吗？不应该，混合了示例代码。非常感谢您指出了正确的方向！

import { take, put, call, fork } from 'redux-saga/effects'
import api from 'services/api'
import * as actions from './actions'

// This doesn't know what loginData is (undefined)
export function* login(loginData) {
  try {
    const encoded = window.btoa(`${loginData.email}:${loginData.password}`)
    const data = yield call(api.post, '/login', { Authorization: `Basic ${encoded}` })
    yield put(actions.userLoginSuccess(data))
  } catch (e) {
    yield put(actions.userLoginFailure(e))
  }
}
export function* watchUserLoginRequest() {
  while (true) {
    const { data } = yield take(actions.USER_LOGIN_REQUEST)
    yield call(login, data)
  }
}

export default function* () {
  yield fork(watchUserLoginRequest)
}

const mapDispatchToProps = (dispatch) => ({
  login: (loginData) => dispatch(userLoginRequest(loginData)),
})