elementui上传图片回显功能实现
作者:不完美女孩-
这篇文章主要介绍了elementui上传图片回显,本文通过实例代码给大家介绍的非常详细,对大家的学习或工作具有一定的参考借鉴价值,需要的朋友可以参考下
elementui上传图片回显
<el-upload class="avatar-uploader" ref="otherLicense" action :auto-upload="false" :on-preview="handlePicPreview" :on-remove="handleRemove" :file-list="form.fileList" :limit="imgLimit" :on-change="otherSectionFile" list-type="picture-card" multiple > <i class="el-icon-plus"></i> </el-upload> <!-- 上传图片放大 --> <el-dialog :visible.sync="dialogVisible"> <img width="100%" :src="dialogImageUrl" alt="" /> </el-dialog>
data中
// 业务结束证明材料 let validateImage = (rule, value, callback) => { // console.log(this.AddDateModel.fileId); //验证器 if (this.AddDateModel.fileId.length <= 0) { //为true代表图片在 false报错 callback(new Error("请上传业务结束证明材料")); } else { callback(); } }; AddDateModel: { fileId:[] }, // 回显图片的路径 photoList: [{ url: "" }], // 放大图片的路径 dialogImageUrl: "", // 上传图片放大弹出框 dialogVisible: false, imgLimit: 9, //最多可上传几张图片 AddDateRules: { fileId: [ { required: true, validator: validateImage, trigger: "blur" }, ], },
methods中
handlePicPreview(file) { this.dialogImageUrl = file.url; this.dialogVisible = true; }, // 业务申请材料 handleRemove(file, fileList) { this.AddDateModel.fileId.map((item, index) => { if (item.uid == file.uid) { this.AddDateModel.fileId.splice(index, 1); } }); }, otherSectionFile(file) { const typeArr = ["image/png", "image/gif", "image/jpeg", "image/jpg"]; const isJPG = typeArr.indexOf(file.raw.type) !== -1; const isLt20M = file.size / 1024 / 1024 < 20; if (!isJPG) { this.$message.error("只能是图片!"); this.$refs.upload.clearFiles(); this.otherFiles = null; return; } if (!isLt20M) { this.$message.error("上传图片大小不能超过 20MB!"); this.$refs.upload.clearFiles(); this.otherFiles = null; return; } this.otherFiles = file.raw; // FormData 对象 var formData = new FormData(); // 文件对象 formData.append("file", this.otherFiles); formData.append("filePath", "yuanchengyiliao"); let config = { headers: { "Content-Type": "multipart/form-data", }, methods: "post", }; // 调取接口 上传参数 this.$axios.hosUpload(formData, config).then((res) => { // console.log(file) let result = res.data.data; let arr = []; for (let i = 0; i < result.length; i++) { // console.log(result[i]) arr.push(result[i].pictureId); } file.pictureId = arr.join("||"); this.AddDateModel.fileId.push(file); // console.log(this.AddDateModel.fileId); }); },
显示数据的方法中
async bussEdit(row) { //调取接口然后把数据传到photoList中,我只上传一张图片,就直接写,上传多张的,循环就好了。 this.photoList[0].url = 图片路径; }, // 回显 fileCoList: [], //图片回显 if (row.fileId) { // console.log(row.fileId) let imgss = []; let imgLen = row.fileId.split(","); for (let i = 0; i < imgLen.length; i++) { imgss.push(imgLen[i]); } // console.log(imgss.join(',')) this.$nextTick(() => { this.$refs.addinmanfill.getFile(imgss.join(",")); }); } else { this.$nextTick(() => { this.$refs.addinmanfill.getFile(''); }); } watch: { fileCoList: { deep: true, handler() { if (this.fileCoList) { this.AddDateModel.fileId = this.fileCoList; } }, }, }, async getFile(ids) { let idsdata = _qs.stringify({ ids: ids, }); let res = await this.$axios.sysgetFile(idsdata); // console.log(res.data.data); let result = res.data.data; result.map((item) => { // console.log(item) item.url = this.GLOBAL.BASE_URL + item.url; item.pictureId = item.id; }); // console.log(result) this.fileCoList = result; },
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