关于在Vue 2 中 Element UI 文件上传组件的使用

<el-button type="success" @click="filedialogVisible = true" icon="el-icon-upload2">上传文件
el-button>

 
        <el-dialog title="上传行政文件" :visible.sync="filedialogVisible" width="600px" :before-close="filehandClose">
            <el-upload ref="upload" style="text-align: center;" action="url" drag :http-request="uploadFile" multiple
                accept=".pdf" :limit="1" :auto-upload="false">
                <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">只允许上传PDF文件,大小不超过100MBdiv>
            el-upload>
            <div slot="footer" class="dialog-footer">
                <el-button type="primary" @click="submitFile">上传el-button>
                <el-button @click="filedialogVisible=false">取 消el-button>
            div>
        el-dialog>

        methods: {
         
            filehandClose() {
            //按需在data中定义
                this.filedialogVisible = false;
            },

            // 用户自定义上传文件 Start
            uploadFile(param) {
                const formData = new FormData();
                formData.append("file", param.file);
                this.$axios
                    .post("/govermentfile/upload", formData, {
                        "Content-type": "multipart/form-data",
                    })
                    .then((res) => {
                        console.log(res.data);
                        this.filedialogVisible = false;
                        this.$message({
                            showClose: true,
                            duration: 2000,
                            message: '上传成功',
                            type: 'success',
                            onClose: () => {
                                this.getFileList();
                            }
                        });

                    });
            },
            submitFile() {
                this.$refs.upload.submit();
            },
            // 用户自定义上传文件 End

        }