Question

我正在尝试在带有axios的表中以JSON格式获取服务器端数据，但是无法理解如何获取id，companyInfo等所有字段。

json：

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

axios：

 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})
  })

reducer：

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

@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 {

  };
}

this is what i get from console.log

那么如何从JSON获取这些值？

Answer 1

您将把所有数据都收录到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响应中的单个属性，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的结构及其格式（例如对象数组），你必须遍历它。

Answer 3

如果您像我一样收到文本而不是JSON，

使用async / await，很简单

let results = await axios.get("http://localhost:3004/paymentReceipts")
try {
  let response = JSON.parse(results.request.response)  
  dispatch({ type: Actions.RECEIVE_DATA, payload: response })
} catch(err) {
  dispatch({type: Actions.FETCH_DATA_ERROR, payload: err})
}

Answer 4

您可以在VUE中获取JSON，无需任何插件

var app = new Vue({
    el: '#app',

    // YOUR DATA HERE
    data: {
        filterResult: [] // THIS IS YOUR JSON FILE
    },

    // READY FUNCTION HERE
    created: function() {
        this.filterResult = this.dataResult();
    },

    // YOU FUNCTION HERE
    methods: {
        // CALLING API
        dataResult: function() {
            $.getJSON('/api/feature/stores/list', function(json) {
                app.results = json;
                app.filterResult = json;
            });
        },
    }
});

如何使用axios从json获取数据？

4 个答案: