今回は、Vue.jsにおけるAjax処理について書いてみたいと思います。 一旦、このような画面を考えてみます。

環境

• Mac OS X El Capitan (ver. 10.11.3)
• zsh 5.0.8 (x86_64-apple-darwin15.0)

• package.json

{
  "name": "playpass",
  "version": "1.0.0",
  "description": "playpass webview project",
  "author": "recochoku",
  "private": true,
  "scripts": {
    "dev": "node build/dev-server.js",
    "start": "node build/dev-server.js",
    "build": "node build/build.js",
    "unit": "cross-env BABEL_ENV=test karma start test/unit/karma.conf.js --single-run",
    "e2e": "node test/e2e/runner.js",
    "test": "npm run unit && npm run e2e",
    "lint": "eslint --ext .js,.vue src test/unit/specs test/e2e/specs"
  },
  "dependencies": {
    "axios": "^0.16.2",
    "vue": "^2.4.2",
    "vue-router": "^2.7.0"
  },
  "devDependencies": {
    "autoprefixer": "^7.1.2",
    "babel-core": "^6.22.1",
    "babel-eslint": "^7.1.1",
    "babel-loader": "^7.1.1",
    "babel-plugin-transform-runtime": "^6.22.0",
    "babel-preset-env": "^1.3.2",
    "babel-preset-stage-2": "^6.22.0",
    "babel-register": "^6.22.0",
    "chalk": "^2.0.1",
    "connect-history-api-fallback": "^1.3.0",
    "copy-webpack-plugin": "^4.0.1",
    "css-loader": "^0.28.0",
    "cssnano": "^3.10.0",
    "eslint": "^3.19.0",
    "eslint-friendly-formatter": "^3.0.0",
    "eslint-loader": "^1.7.1",
    "eslint-plugin-html": "^3.0.0",
    "eslint-config-standard": "^6.2.1",
    "eslint-plugin-promise": "^3.4.0",
    "eslint-plugin-standard": "^2.0.1",
    "eventsource-polyfill": "^0.9.6",
    "express": "^4.14.1",
    "extract-text-webpack-plugin": "^2.0.0",
    "file-loader": "^0.11.1",
    "friendly-errors-webpack-plugin": "^1.1.3",
    "html-webpack-plugin": "^2.28.0",
    "http-proxy-middleware": "^0.17.3",
    "webpack-bundle-analyzer": "^2.2.1",
    "cross-env": "^5.0.1",
    "karma": "^1.4.1",
    "karma-coverage": "^1.1.1",
    "karma-mocha": "^1.3.0",
    "karma-phantomjs-launcher": "^1.0.2",
    "karma-phantomjs-shim": "^1.4.0",
    "karma-sinon-chai": "^1.3.1",
    "karma-sourcemap-loader": "^0.3.7",
    "karma-spec-reporter": "0.0.31",
    "karma-webpack": "^2.0.2",
    "mocha": "^3.2.0",
    "chai": "^3.5.0",
    "sinon": "^2.1.0",
    "sinon-chai": "^2.8.0",
    "inject-loader": "^3.0.0",
    "babel-plugin-istanbul": "^4.1.1",
    "phantomjs-prebuilt": "^2.1.14",
    "chromedriver": "^2.27.2",
    "cross-spawn": "^5.0.1",
    "nightwatch": "^0.9.12",
    "selenium-server": "^3.0.1",
    "semver": "^5.3.0",
    "shelljs": "^0.7.6",
    "opn": "^5.1.0",
    "optimize-css-assets-webpack-plugin": "^2.0.0",
    "ora": "^1.2.0",
    "rimraf": "^2.6.0",
    "url-loader": "^0.5.8",
    "vue-loader": "^13.0.4",
    "vue-style-loader": "^3.0.1",
    "vue-template-compiler": "^2.4.2",
    "webpack": "^2.6.1",
    "webpack-dev-middleware": "^1.10.0",
    "webpack-hot-middleware": "^2.18.0",
    "webpack-merge": "^4.1.0"
  },
  "engines": {
    "node": ">= 4.0.0",
    "npm": ">= 3.0.0"
  },
  "browserslist": [
    "> 1%",
    "last 2 versions",
    "not ie <= 8"
  ]
}

• CSSフレームワーク
• Icon

ソースコード

• HTML部分

<template>
  <div class="download-detail">
    <p class="mdl-list__item-secondary-content text-right">
      <span class="mdl-list__item-secondary-info">まとめてダウンロード：
        <a class="mdl-list__item-secondary-action" href="#"><i class="material-icons">cloud_download</i></a>
      </span>
    </p>
    <ul class="demo-list-two mdl-list">
      <li v-for="musicInfo in musicInfo" class="mdl-list__item mdl-list__item--two-line">
        <span class="mdl-list__item-primary-content">
          <i class="material-icons mdl-list__item-avatar">music_note</i>
          <span>{{ musicInfo.musicTitle }}</span>
          <span class="mdl-list__item-sub-title">{{ musicInfo.albumTitle }}</span>
        </span>
        <span class="mdl-list__item-secondary-content">
          <span class="mdl-list__item-secondary-info text-center">ダウンロード</span>
          <a v-on:click="download('music')" class="mdl-list__item-secondary-action"><i class="material-icons">cloud_download</i></a>
          <div id="p1" class="mdl-progress mdl-js-progress"></div>
        </span>
      </li>
    </ul>
  </div>
</template>

ダウンロードボタンを押した際にdownload(‘music’)関数が呼ばれるとして、 その内部でダウンロード処理(downloadMusicFile関数)を書こうとすると以下のようになります。