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691c6709ef
element/examples/docs/zh-CN/upload.md
baiyaaaaa 691c6709ef add api migrating
2017-02-16 22:43:19 +08:00

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Upload 上传

通过点击或者拖拽上传文件

点击上传

::: demo 通过 slot 你可以传入自定义的上传按钮类型和文字提示。

<el-upload
  class="upload-demo"
  action="http://localhost:9000/upload"
  :on-preview="handlePreview"
  :on-remove="handleRemove"
  :file-list="fileList">
  <el-button size="small" type="primary">点击上传</el-button>
  <div slot="tip" class="el-upload__tip">只能上传jpg/png文件，且不超过500kb</div>
</el-upload>
<script>
  export default {
    data() {
      return {
        fileList: [{name: 'food.jpeg', url: 'https://fuss10.elemecdn.com/3/63/4e7f3a15429bfda99bce42a18cdd1jpeg.jpeg?imageMogr2/thumbnail/360x360/format/webp/quality/100'}, {name: 'food2.jpeg', url: 'https://fuss10.elemecdn.com/3/63/4e7f3a15429bfda99bce42a18cdd1jpeg.jpeg?imageMogr2/thumbnail/360x360/format/webp/quality/100'}]
      };
    },
    methods: {
      handleRemove(file, fileList) {
        console.log(file, fileList);
      },
      handlePreview(file) {
        console.log(file);
      }
    }
  }
</script>

:::

用户头像上传

使用 beforeUpload 限制用户上传的图片格式和大小。

::: demo

<el-upload
  class="avatar-uploader"
  action="http://localhost:9000/upload"
  :show-file-list="false"
  :on-success="handleAvatarScucess"
  :before-upload="beforeAvatarUpload">
  <img v-if="imageUrl" :src="imageUrl" class="avatar">
  <i v-else class="el-icon-plus avatar-uploader-icon"></i>
</el-upload>
<script>
  export default {
    data() {
      return {
        imageUrl: ''
      };
    },
    methods: {
      handleAvatarScucess(res, file) {
        this.imageUrl = URL.createObjectURL(file.raw);
      },
      beforeAvatarUpload(file) {
        const isJPG = file.type === 'image/jpeg';
        const isLt2M = file.size / 1024 / 1024 < 2;

        if (!isJPG) {
          this.$message.error('上传头像图片只能是 JPG 格式!');
        }
        if (!isLt2M) {
          this.$message.error('上传头像图片大小不能超过 2MB!');
        }
        return isJPG && isLt2M;
      }
    }
  }
</script>

:::

照片墙

使用 listType 属性来设置文件列表的样式。

::: demo

<el-upload
  action="http://localhost:9000/upload"
  list-type="picture-card"
  :on-preview="handlePreview"
  :on-remove="handleRemove">
  <i class="el-icon-plus"></i>
</el-upload>
<script>
  export default {
    methods: {
      handleRemove(file, fileList) {
        console.log(file, fileList);
      },
      handlePreview(file) {
        console.log(file);
      }
    }
  }
</script>

:::

图片列表缩略图

::: demo

<el-upload
  class="upload-demo"
  action="http://localhost:9000/upload"
  :on-preview="handlePreview"
  :on-remove="handleRemove"
  :file-list="fileList"
  list-type="picture">
  <el-button size="small" type="primary">点击上传</el-button>
  <div slot="tip" class="el-upload__tip">只能上传jpg/png文件，且不超过500kb</div>
</el-upload>
<script>
  export default {
    data() {
      return {
        fileList: [{name: 'food.jpeg', url: 'https://fuss10.elemecdn.com/3/63/4e7f3a15429bfda99bce42a18cdd1jpeg.jpeg?imageMogr2/thumbnail/360x360/format/webp/quality/100'}, {name: 'food2.jpeg', url: 'https://fuss10.elemecdn.com/3/63/4e7f3a15429bfda99bce42a18cdd1jpeg.jpeg?imageMogr2/thumbnail/360x360/format/webp/quality/100'}]
      };
    },
    methods: {
      handleRemove(file, fileList) {
        console.log(file, fileList);
      },
      handlePreview(file) {
        console.log(file);
      }
    }
  }
</script>

:::

拖拽上传

::: demo

<el-upload
  class="upload-demo"
  drag
  action="http://localhost:9000/upload"
  mutiple>
  <i class="el-icon-upload"></i>
  <div class="el-upload__text">将文件拖到此处，或<em>点击上传</em></div>
  <div class="el-upload__tip" slot="tip">只能上传jpg/png文件，且不超过500kb</div>
</el-upload>

:::

手动上传

::: demo

<el-upload
  class="upload-demo"
  ref="upload"
  action="http://localhost:9000/upload"
  :on-preview="handlePreview"
  :on-remove="handleRemove"
  :file-list="fileList"
  :auto-upload="false">
  <el-button slot="trigger" size="small" type="primary">选取文件</el-button>
  <el-button style="margin-left: 10px;" size="small" type="success" @click="submitUpload">上传到服务器</el-button>
  <div slot="tip" class="el-upload__tip">只能上传jpg/png文件，且不超过500kb</div>
</el-upload>
<script>
  export default {
    data() {
      return {
        fileList: [{name: 'food.jpeg', url: 'https://fuss10.elemecdn.com/3/63/4e7f3a15429bfda99bce42a18cdd1jpeg.jpeg?imageMogr2/thumbnail/360x360/format/webp/quality/100'}, {name: 'food2.jpeg', url: 'https://fuss10.elemecdn.com/3/63/4e7f3a15429bfda99bce42a18cdd1jpeg.jpeg?imageMogr2/thumbnail/360x360/format/webp/quality/100'}]
      };
    },
    methods: {
      handleRemove(file, fileList) {
        console.log(file, fileList);
      },
      handlePreview(file) {
        console.log(file);
      }
    }
  }
</script>

:::

Attribute

参数 说明 类型 可选值 默认值
action 必选参数, 上传的地址 string — —
headers 可选参数, 设置上传的请求头部 object — —
multiple 可选参数, 是否支持多选文件 boolean — —
data 可选参数, 上传时附带的额外参数 object — —
name 可选参数, 上传的文件字段名 string — file
with-credentials 支持发送 cookie 凭证信息 boolean — false
show-file-list 是否显示已上传文件列表 boolean — true
type 上传控件类型 string select,drag select
accept 可选参数, 接受上传的文件类型（thumbnail-mode 模式下此参数无效） string — —
on-preview 可选参数, 点击已上传的文件链接时的钩子, 可以通过 file.response 拿到服务端返回数据 function(file) — —
on-remove 可选参数, 文件列表移除文件时的钩子 function(file, fileList) — —
on-success 可选参数, 文件上传成功时的钩子 function(response, file, fileList) — —
on-error 可选参数, 文件上传失败时的钩子 function(err, file, fileList) — —
on-progress 可选参数, 文件上传时的钩子 function(event, file, fileList) — —
on-change 可选参数, 文件状态改变时的钩子 function(file, fileList) — —
before-upload 可选参数, 上传文件之前的钩子，参数为上传的文件，若返回 false 或者 Promise 则停止上传。 function(file) — —
list-type 文件列表的类型 string text/picture/picture-card text
auto-upload 是否在选取文件后立即进行上传 boolean — true
file-list 上传的文件列表, 例如: [{name: 'food.jpeg', url: 'https://fuss10.elemecdn.com/3/63/4e7f3a15429bfda99bce42a18cdd1jpeg.jpeg?imageMogr2/thumbnail/360x360/format/webp/quality/100'}] array — []

Methods

方法名 说明 参数
clearFiles 清空已上传的文件列表 —