vue 实现html转图片和生成二维码

vue实现html转图片

下载html2canvas

yarn add html2canvas

app.vue

<!--
 * @Description: 
 * @Version: 1.0
 * @Autor: solid
 * @Date: 2022-06-08 18:16:20
 * @LastEditors: solid
 * @LastEditTime: 2022-07-26 16:05:49
-->
<template>
  <div id="app">
    <div>
      <h1>原始HTML</h1>
      <div id="imageWrapper">
        <div class="container">
          <h1>Please Login</h1>
          <form>
            <div class="form-control">
              <input
                type="text"
                required
                placeholder="Please enter username"
                v-model="user.username"
              />
            </div>

            <div class="form-control">
              <input
                type="password"
                required
                placeholder="Please enter password"
                v-model="user.password"
              />
            </div>

            <button class="btn">Login</button>

            <p class="text">Don't have an account? <a href="#">Register</a></p>
          </form>
        </div>
      </div>
    </div>
    <div style="margin: 0 20px">
      <h1>生成的图片</h1>
      <img :src="testUrl" alt="" />
    </div>
  </div>
</template>
<script>
import html2canvas from "html2canvas";
export default {
  data() {
    return {
      user: { username: "admin", password: "password" },
      testUrl: "",
    };
  },
  mounted() {
    this.genImges();
  },
  methods: {
    genImges() {
      const options = {
        backgroundColor: "rgba(0, 0, 0, 0.4)", // null或transparent可将canvas背景设置为透明
      };
      html2canvas(document.getElementById("imageWrapper"),options)
        .then((canvas) => {
          let dataURL = canvas.toDataURL("image/png");
          this.testUrl = dataURL;
        })
        .catch((err) => {
          console.log(err);
        });
    },
  },
};
</script>
<style>
* {
  box-sizing: border-box;
}
#app {
  display: flex;
}
body {
  background-color: steelblue;
  color: #fff;
  font-family: "Muli", sans-serif;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100vh;
  overflow: hidden;
  margin: 0;
}
.container {
  background-color: rgba(0, 0, 0, 0.4);
  padding: 20px 40px;
  border-radius: 5px;
}

.container h1 {
  text-align: center;
  margin-bottom: 30px;
}

.container a {
  text-decoration: none;
  color: lightblue;
}

.btn {
  cursor: pointer;
  display: inline-block;
  width: 100%;
  background: lightblue;
  padding: 15px;
  font-family: inherit;
  font-size: 16px;
  border: 0;
  border-radius: 5px;
}

.btn:focus {
  outline: 0;
}

.btn:active {
  transform: scale(0.98);
}

.text {
  margin-top: 30px;
}

.form-control {
  position: relative;
  margin: 20px 0 40px;
  width: 300px;
}

.form-control input {
  background-color: transparent;
  border: 0;
  border-bottom: 2px #fff solid;
  display: block;
  width: 100%;
  padding: 15px 0;
  font-size: 18px;
  color: #fff;
}

.form-control input:focus,
.form-control input:valid {
  outline: 0;
  border-bottom-color: lightblue;
}

.form-control label {
  position: absolute;
  top: 15px;
  left: 0;
  pointer-events: none;
}

.form-control label span {
  display: inline-block;
  font-size: 18px;
  min-width: 5px;
  transition: 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}
</style>

vue生成二维码

下载vue-qr

yarn add vue-qr

App.vue

<!--
 * @Description: 
 * @Version: 1.0
 * @Autor: solid
 * @Date: 2022-06-08 18:16:20
 * @LastEditors: solid
 * @LastEditTime: 2022-07-26 16:12:14
-->
<template>
  <div id="app">
    <div>
      <vue-qr
        :logoSrc="logo"
        text="https://blog.csdn.net/a1309525802"
        :size="120"
      ></vue-qr>
    </div>
  </div>
</template>
<script>
import vueQr from "vue-qr";
export default {
  components: {
    vueQr,
  },
  data() {
    return {
      logo: require("@/assets/logo.png"),
    };
  },
};
</script>
<style scoped>
#app {
  width: 100%;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-content: center;
}
</style>