Question

我的减速机出了问题。我创建了一个动作创建器，reducer，并使用'react-redux'连接来组合两者。

当我触发我的动作时，动作创建者记录，他刚收到一个新数据，但reducer不记录任何内容（Reducer只记录3个初始循环）。另外，我每隔5秒在控制台中显示的store.getState（）显示为null（这是我的商店的初始状态）。你能帮我解决这个问题吗？

export const UPDATE_PACKAGE_JSON = 'UPDATE_PACKAGE_JSON';

export function setName(name){
  console.log('Action creator just received a name', name);
  return {
    type: UPDATE_PACKAGE_JSON,
    payload: name
  }
}

容器

const mapDispatchToProps = (dispatch) =>
  bindActionCreators({ setName }, dispatch);

export default connect(null, mapDispatchToProps)(ConfigurationForm) ;

减速

import { UPDATE_PACKAGE_JSON } from './../actions/index';

export const packageJson = function (state = null, action){
  console.log(UPDATE_PACKAGE_JSON);
  switch(action.type){
    case UPDATE_PACKAGE_JSON:
    return {...state,
      name: action.payload};
  }
  return state;
};

修改

商店

import { createStore } from 'redux';

import rootReducer from './../reducers/rootReducer';

const store = createStore(rootReducer);

export default store;

rootReducer

import { combineReducers } from 'redux';

import { packageJson } from './packageJson';

const rootReducer = combineReducers({
  packageJson
});

export default rootReducer;

Reducer无法从动作创建者接收数据

0 个答案: