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Vue.js is a popular JavaScript framework that can quickly build single-page applications (SPA). In Vue.js, we can use JSON files to store data, which is very useful in development. This article will introduce how to introduce JSON files in Vue and list several methods.

Import JSON files directly into Vue components

In a Vue component, we can use the import statement to introduce a JSON file. Suppose we have a file called data.json that contains the following data:

{
  "name": "John",
  "age": 30,
  "city": "New York"
}

We can import it in our Vue component like this:

import data from './data.json'

export default {
  data() {
    return {
      person: data
    }
  }
}

In this example, we use the import statement to bring in the data.json file into the component and save it in the person variable. We then add the person variable to the component’s data object to make it available in the component.

Use the Axios library to get JSON data

If the JSON data is stored on a remote server, we can use the Axios library to get it. Axios is a popular JavaScript library for getting data from a server. In Vue.js, we can use the Axios library to get JSON data. Assuming we have a file called data.json stored on a remote server, we can get it like this:

import axios from 'axios'

export default {
  data() {
    return {
      person: {}
    }
  },
  mounted() {
    axios.get('https://example.com/data.json')
      .then(response => {
        this.person = response.data
      })
      .catch(error => {
        console.log(error)
      })
  }
}

In this example, we use the Axios library to fetch the data.json file. In the mounted lifecycle hook function, we use the axios.get() method to fetch the data. When the request succeeds, we save the data in the person variable of the component. If the request fails, we log the error information in the console.

Use the Vue Resource library to get JSON data

Vue Resource is a Vue.js-based HTTP client library for getting data from the server. Similar to Axios, Vue Resource can also be used to get JSON data. Suppose we have a file called data.json stored on a remote server, we can get it like this:

import Vue from 'vue'
import VueResource from 'vue-resource'

Vue.use(VueResource)

export default {
  data() {
    return {
      person: {}
    }
  },
  mounted() {
    this.$http.get('https://example.com/data.json')
      .then(response => {
        this.person = response.body
      })
      .catch(error => {
        console.log(error)
      })
  }
}

In this example, we use the Vue Resource library to get the data.json file. In the mounted lifecycle hook function, we use the this.$http.get() method to get the data. When the request is successful, we save the data in the person variable of the component. If the request fails, we log the error information in the console.

Summarize

In Vue.js, we can use multiple methods to import JSON files. We can import JSON files directly in Vue components, or use Axios or Vue Resource library to get JSON data. Which method to choose depends on your needs and project requirements. No matter which method, importing JSON files is very easy and can help us quickly build single-page applications.