如何使用axios从json获取数据？

Question

我正在尝试使用axios在表中获取JSON格式的服务器端数据，但无法理解如何获取每个字段，例如id，companyInfo等等。

json：

[
  {
    "id": 1,
    "companyInfo": 1,
    "receiptNum": 1,
    "receiptSeries": "??",
    "customerName": "Mark",
    "customerSurname": "Smith",
    "customerMiddleName": "Jk",
    "customerPhone": "0845121",
    "services": [
      2,
      16
    ]
  }
]

轴距：

 store.dispatch((dispatch) => {
dispatch({type: Actions.FETCH_DATA_START})
axios.get("http://localhost:3004/paymentReceipts")
  .then((response) => {
    dispatch({ type: Actions.RECEIVE_DATA, payload: response })
  }).catch((err) => {
    dispatch({type: Actions.FETCH_DATA_ERROR, payload: err})
  })

减速器：

export const initialState = {
  paymentReceipts: []
};

export default handleActions<FetchData>({
  [Actions.FETCH_DATA_START]: (state, action) => {
    return ;
  },
  [Actions.FETCH_DATA_ERROR]: (state, action) => {
    return;
  },
  [Actions.RECEIVE_DATA]: (state, action) => {
      console.log("DONE WITH STATE");
    return {...state, 
        paymentReceipts :  action.payload
    }
  }
}, initialState)

应用程式

@connect(mapStateToProps, mapDispatchToProps)
export class App extends React.Component<App.Props, App.State> {

  constructor() {
    super();
  }

  render() {
    console.log("CONTAINER IS ");
    console.log(this.props.receiveData);

    return (
      <div className={style.normal}>

      </div>
    );
  }
}

function mapStateToProps(state: RootState) {
  return {
    receiveData: state.receiveData
  };
}

function mapDispatchToProps(dispatch) {
  return {

  };
}

这是我从中得到的 console.log

那么如何从JSON获取此值？

Answer 1

您将把所有数据放入response.data。

axios.get("http://localhost:3004/paymentReceipts")
  .then((response) => {
    dispatch({ type: Actions.RECEIVE_DATA, payload: response.data }) //Change
  }).catch((err) => {
    dispatch({type: Actions.FETCH_DATA_ERROR, payload: err})
  })

Answer 2

要访问 json-response 中的单个属性，您只需执行以下操作：

response.data.<attribute>

例如：

   axios.get("http://localhost:3004/paymentReceipts")
  .then((response) => {
    dispatch({ type: Actions.RECEIVE_DATA, payload: response.data, id: response.data.id }) //Change
  }).catch((err) => {
    dispatch({type: Actions.FETCH_DATA_ERROR, payload: err})
  })

根据 json 的结构以及它的格式（例如对象数组），您必须遍历它。