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♻️ Refactoring code. 重构字典、前端main.js 常用公用方法
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Sep 29, 2022
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@@ -21,4 +21,5 @@ yarn-error.log* | |
| *.ntvs* | ||
| *.njsproj | ||
| *.sln | ||
| *.iml | ||
| *.sw* | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,224 @@ | ||
| <template> | ||
| <div class="component-upload-image"> | ||
| <el-upload | ||
| multiple | ||
| :action="baseUrl + uploadImgUrl" | ||
| list-type="picture-card" | ||
| :on-success="handleUploadSuccess" | ||
| :before-upload="handleBeforeUpload" | ||
| :limit="limit" | ||
| :on-error="handleUploadError" | ||
| :on-exceed="handleExceed" | ||
| ref="imageUpload" | ||
| :on-remove="handleDelete" | ||
| :show-file-list="true" | ||
| :headers="headers" | ||
| :file-list="fileList" | ||
| :on-preview="handlePictureCardPreview" | ||
| :class="{hide: this.fileList.length >= this.limit}" | ||
| > | ||
| <i class="el-icon-plus"></i> | ||
| </el-upload> | ||
|
|
||
| <!-- 上传提示 --> | ||
| <div class="el-upload__tip" slot="tip" v-if="showTip"> | ||
| 请上传 | ||
| <template v-if="fileSize"> 大小不超过 <b style="color: #f56c6c">{{ fileSize }}MB</b></template> | ||
| <template v-if="fileType"> 格式为 <b style="color: #f56c6c">{{ fileType.join("/") }}</b></template> | ||
| 的文件 | ||
| </div> | ||
|
|
||
| <el-dialog | ||
| :visible.sync="dialogVisible" | ||
| title="预览" | ||
| width="800" | ||
| append-to-body | ||
| > | ||
| <img | ||
| :src="dialogImageUrl" | ||
| style="display: block; max-width: 100%; margin: 0 auto" | ||
| /> | ||
| </el-dialog> | ||
| </div> | ||
| </template> | ||
|
|
||
| <script> | ||
| import store from "@/store/index.js"; | ||
| export default { | ||
| props: { | ||
| modelValue: [String, Object, Array], | ||
| // 图片数量限制 | ||
| limit: { | ||
| type: Number, | ||
| default: 1, | ||
| }, | ||
| // 大小限制(MB) | ||
| fileSize: { | ||
| type: Number, | ||
| default: 5, | ||
| }, | ||
| // 文件类型, 例如['png', 'jpg', 'jpeg'] | ||
| fileType: { | ||
| type: Array, | ||
| default: () => ["png", "jpg", "jpeg"], | ||
| }, | ||
| // 是否显示提示 | ||
| isShowTip: { | ||
| type: Boolean, | ||
| default: true | ||
| } | ||
| }, | ||
| data() { | ||
| return { | ||
| number: 0, | ||
| uploadList: [], | ||
| dialogImageUrl: "", | ||
| dialogVisible: false, | ||
| hideUpload: false, | ||
| uploadImgUrl: "/admin/sys-file/upload", // 上传的图片服务器地址 | ||
| fileList: [] | ||
| }; | ||
| }, | ||
| watch: { | ||
| modelValue: { | ||
| handler(val) { | ||
| if (val) { | ||
| // 首先将值转为数组 | ||
| const list = Array.isArray(val) ? val : this.modelValue.split(','); | ||
| // 然后将数组转为对象数组 | ||
| this.fileList = list.map(item => { | ||
| if (typeof item === "string") { | ||
| if (item.indexOf(this.baseUrl) === -1) { | ||
| item = {name: this.baseUrl + item, url: this.baseUrl + item}; | ||
| } else { | ||
| item = {name: item, url: item}; | ||
| } | ||
| } | ||
| return item; | ||
| }); | ||
| } else { | ||
| this.fileList = []; | ||
| return []; | ||
| } | ||
| }, | ||
| deep: true, | ||
| immediate: true | ||
| } | ||
| }, | ||
| computed: { | ||
| // 是否显示提示 | ||
| showTip() { | ||
| return this.isShowTip && (this.fileType || this.fileSize); | ||
| }, | ||
| headers: function () { | ||
| return { | ||
| Authorization: "Bearer " + store.getters.access_token | ||
| }; | ||
| } | ||
| }, | ||
| methods: { | ||
| // 上传前loading加载 | ||
| handleBeforeUpload(file) { | ||
| let isImg = false; | ||
| if (this.fileType.length) { | ||
| let fileExtension = ""; | ||
| if (file.name.lastIndexOf(".") > -1) { | ||
| fileExtension = file.name.slice(file.name.lastIndexOf(".") + 1); | ||
| } | ||
| isImg = this.fileType.some(type => { | ||
| if (file.type.indexOf(type) > -1) return true; | ||
| if (fileExtension && fileExtension.indexOf(type) > -1) return true; | ||
| return false; | ||
| }); | ||
| } else { | ||
| isImg = file.type.indexOf("image") > -1; | ||
| } | ||
| if (!isImg) { | ||
| this.$message.error(`文件格式不正确, 请上传${this.fileType.join("/")}图片格式文件!`); | ||
| return false; | ||
| } | ||
| if (this.fileSize) { | ||
| const isLt = file.size / 1024 / 1024 < this.fileSize; | ||
| if (!isLt) { | ||
| this.$message.error(`上传头像图片大小不能超过 ${this.fileSize} MB!`); | ||
| return false; | ||
| } | ||
| } | ||
| this.number++; | ||
| }, | ||
| // 文件个数超出 | ||
| handleExceed() { | ||
| this.$message.error(`上传文件数量不能超过 ${this.limit} 个!`); | ||
| }, | ||
| // 上传成功回调 | ||
| handleUploadSuccess(res, file) { | ||
| if (res.code === 0) { | ||
| this.uploadList.push({name: res.data.fileName, url: this.baseUrl + res.data.url}); | ||
| this.uploadedSuccessfully(); | ||
| } else { | ||
| this.number--; | ||
| this.$message.error(res.msg); | ||
| this.$refs.imageUpload.handleRemove(file); | ||
| this.uploadedSuccessfully(); | ||
| } | ||
| }, | ||
| // 删除图片 | ||
| handleDelete(file) { | ||
| const findex = this.fileList.map(f => f.name).indexOf(file.name); | ||
| if (findex > -1) { | ||
| this.fileList.splice(findex, 1); | ||
| this.$emit("update:modelValue", this.listToString(this.fileList)); | ||
| } | ||
| }, | ||
| // 上传失败 | ||
| handleUploadError() { | ||
| this.$message.error("上传图片失败，请重试"); | ||
| }, | ||
| // 上传结束处理 | ||
| uploadedSuccessfully() { | ||
| if (this.number > 0 && this.uploadList.length === this.number) { | ||
| this.fileList = this.fileList.concat(this.uploadList); | ||
| this.uploadList = []; | ||
| this.number = 0; | ||
| this.$emit("update:modelValue", this.listToString(this.fileList)); | ||
| } | ||
| }, | ||
| // 预览 | ||
| handlePictureCardPreview(file) { | ||
| this.dialogImageUrl = file.url; | ||
| this.dialogVisible = true; | ||
| }, | ||
| // 对象转成指定字符串分隔 | ||
| listToString(list, separator) { | ||
| let strs = ""; | ||
| separator = separator || ","; | ||
| for (let i in list) { | ||
| if (list[i].url) { | ||
| strs += list[i].url.replace(this.baseUrl, "") + separator; | ||
| } | ||
| } | ||
| return strs !== '' ? strs.substr(0, strs.length - 1) : ''; | ||
| } | ||
| } | ||
| }; | ||
| </script> | ||
| <style scoped lang="scss"> | ||
| // .el-upload--picture-card 控制加号部分 | ||
| :deep(.hide .el-upload--picture-card) { | ||
| display: none; | ||
| } | ||
| // 去掉动画效果 | ||
| :deep( .el-list-enter-active), | ||
| :deep(.el-list-leave-active) { | ||
| transition: all 0s; | ||
| } | ||
| :deep( .el-list-enter, .el-list-leave-active ) { | ||
| opacity: 0; | ||
| transform: translateY(0); | ||
| } | ||
| </style> | ||
|
|
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