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Nuxt.jsのクエリパラメータの使い方覚書

Last updated at Posted at 2020-07-15

#ソースコード全文
遷移元

hello.vue
<template>
  <div>
    <p>名前:</p>
    <input type="text" v-model="name" />
    <p>入力値:{{name}}</p>
    <hr />
    <p>血液型:</p>
    <input type="text" v-model="blood_type" />
    <p>入力値:{{blood_type}}</p>

    <button @click="jumpPage">飛ぶ</button>
  </div>
</template>
<script>
export default {
  data() {
    return {
      name: "",
      blood_type: ""
    };
  },
  methods: {
    jumpPage() {
      this.$router.push({
        path: "bye",
        query: { name: this.name, blood_type: this.blood_type }
      });
    }
  }
};
</script>

遷移先

bye.js
<template>
  <div>
    <button @click="back">戻る</button>
    <button @click="result">渡ってきたクエリ</button>
    <p>名前{{this.name}}</p>
    <p>血液型{{this.blood_type}}</p>
  </div>
</template>
<script>
export default {
  data() {
    return {
      name: "",
      blood_type: ""
    };
  },
  methods: {
    back() {
      this.$router.go(-1); //画面遷移後、元の画面に戻る
    },
    result() {
      this.name = this.$route.query.name; //渡ってきたクエリパラメータをローカルなデータ代入
      this.blood_type = this.$route.query.blood_type;
    }
  }
};
</script>

#point

  1. 遷移元:this.$router.pushでページ遷移
  2. 遷移先:this.$route.query.hogehogeでクエリパラメータ?hogehoge=~~で渡ってきた~~のところを取得(ちなみに遷移先のパラメータ全文はhttp://localhost:3000/bye?name=aaaa&blood_type=A
  3. 遷移先this.$router.go(-1)で元のページに戻ることができる。
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