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<div class=\"component-upload-image\">\r\n <el-upload\r\n :action=\"uploadImgUrl\"\r\n list-type=\"picture-card\"\r\n :on-success=\"handleUploadSuccess\"\r\n :before-upload=\"handleBeforeUpload\"\r\n :limit=\"limit\"\r\n :on-error=\"handleUploadError\"\r\n :on-exceed=\"handleExceed\"\r\n name=\"file\"\r\n :on-remove=\"handleRemove\"\r\n :show-file-list=\"true\"\r\n :headers=\"headers\"\r\n :file-list=\"fileList\"\r\n :on-preview=\"handlePictureCardPreview\"\r\n :class=\"{hide: this.fileList.length >= this.limit}\"\r\n >\r\n <i class=\"el-icon-plus\"></i>\r\n </el-upload>\r\n \r\n <!-- 上传提示 -->\r\n <div class=\"el-upload__tip\" slot=\"tip\" v-if=\"showTip\">\r\n 请上传\r\n <template v-if=\"fileSize\"> 大小不超过 <b style=\"color: #f56c6c\">{{ fileSize }}MB</b> </template>\r\n <template v-if=\"fileType\"> 格式为 <b style=\"color: #f56c6c\">{{ fileType.join(\"/\") }}</b> </template>\r\n 的文件\r\n </div>\r\n\r\n <el-dialog\r\n :visible.sync=\"dialogVisible\"\r\n title=\"预览\"\r\n width=\"800\"\r\n append-to-body\r\n >\r\n <img\r\n :src=\"dialogImageUrl\"\r\n style=\"display: block; max-width: 100%; margin: 0 auto\"\r\n />\r\n </el-dialog>\r\n </div>\r\n</template>\r\n\r\n<script>\r\nimport { getToken } from \"@/utils/auth\";\r\n\r\nexport default {\r\n props: {\r\n value: [String, Object, Array],\r\n // 图片数量限制\r\n limit: {\r\n type: Number,\r\n default: 5,\r\n },\r\n // 大小限制(MB)\r\n fileSize: {\r\n type: Number,\r\n default: 5,\r\n },\r\n // 文件类型, 例如['png', 'jpg', 'jpeg']\r\n fileType: {\r\n type: Array,\r\n default: () => [\"png\", \"jpg\", \"jpeg\"],\r\n },\r\n // 是否显示提示\r\n isShowTip: {\r\n type: Boolean,\r\n default: true\r\n }\r\n },\r\n data() {\r\n return {\r\n dialogImageUrl: \"\",\r\n dialogVisible: false,\r\n hideUpload: false,\r\n baseUrl: process.env.VUE_APP_BASE_API,\r\n uploadImgUrl: process.env.VUE_APP_BASE_API + \"/common/upload\", // 上传的图片服务器地址\r\n headers: {\r\n Authorization: \"Bearer \" + getToken(),\r\n },\r\n fileList: []\r\n };\r\n },\r\n watch: {\r\n value: {\r\n handler(val) {\r\n if (val) {\r\n // 首先将值转为数组\r\n const list = Array.isArray(val) ? val : this.value.split(',');\r\n // 然后将数组转为对象数组\r\n this.fileList = list.map(item => {\r\n if (typeof item === \"string\") {\r\n if (item.indexOf(this.baseUrl) === -1) {\r\n item = { name: this.baseUrl + item, url: this.baseUrl + item };\r\n } else {\r\n item = { name: item, url: item };\r\n }\r\n }\r\n return item;\r\n });\r\n } else {\r\n this.fileList = [];\r\n return [];\r\n }\r\n },\r\n deep: true,\r\n immediate: true\r\n }\r\n },\r\n computed: {\r\n // 是否显示提示\r\n showTip() {\r\n return this.isShowTip && (this.fileType || this.fileSize);\r\n },\r\n },\r\n methods: {\r\n // 删除图片\r\n handleRemove(file, fileList) {\r\n const findex = this.fileList.map(f => f.name).indexOf(file.name);\r\n if(findex > -1) {\r\n this.fileList.splice(findex, 1);\r\n this.$emit(\"input\", this.listToString(this.fileList));\r\n }\r\n },\r\n // 上传成功回调\r\n handleUploadSuccess(res) {\r\n this.fileList.push({ name: res.fileName, url: res.fileName });\r\n this.$emit(\"input\", this.listToString(this.fileList));\r\n this.loading.close();\r\n },\r\n // 上传前loading加载\r\n handleBeforeUpload(file) {\r\n let isImg = false;\r\n if (this.fileType.length) {\r\n let fileExtension = \"\";\r\n if (file.name.lastIndexOf(\".\") > -1) {\r\n fileExtension = file.name.slice(file.name.lastIndexOf(\".\") + 1);\r\n }\r\n isImg = this.fileType.some(type => {\r\n if (file.type.indexOf(type) > -1) return true;\r\n if (fileExtension && fileExtension.indexOf(type) > -1) return true;\r\n return false;\r\n });\r\n } else {\r\n isImg = file.type.indexOf(\"image\") > -1;\r\n }\r\n\r\n if (!isImg) {\r\n this.$message.error(\r\n `文件格式不正确, 请上传${this.fileType.join(\"/\")}图片格式文件!`\r\n );\r\n return false;\r\n }\r\n if (this.fileSize) {\r\n const isLt = file.size / 1024 / 1024 < this.fileSize;\r\n if (!isLt) {\r\n this.$message.error(`上传头像图片大小不能超过 ${this.fileSize} MB!`);\r\n return false;\r\n }\r\n }\r\n this.loading = this.$loading({\r\n lock: true,\r\n text: \"上传中\",\r\n background: \"rgba(0, 0, 0, 0.7)\",\r\n });\r\n },\r\n // 文件个数超出\r\n handleExceed() {\r\n this.$message.error(`上传文件数量不能超过 ${this.limit} 个!`);\r\n },\r\n // 上传失败\r\n handleUploadError() {\r\n this.$message({\r\n type: \"error\",\r\n message: \"上传失败\",\r\n });\r\n this.loading.close();\r\n },\r\n // 预览\r\n handlePictureCardPreview(file) {\r\n this.dialogImageUrl = file.url;\r\n this.dialogVisible = true;\r\n },\r\n // 对象转成指定字符串分隔\r\n listToString(list, separator) {\r\n let strs = \"\";\r\n separator = separator || \",\";\r\n for (let i in list) {\r\n strs += list[i].url.replace(this.baseUrl, \"\") + separator;\r\n }\r\n return strs != '' ? strs.substr(0, strs.length - 1) : '';\r\n }\r\n }\r\n};\r\n</script>\r\n<style scoped lang=\"scss\">\r\n// .el-upload--picture-card 控制加号部分\r\n::v-deep.hide .el-upload--picture-card {\r\n display: none;\r\n}\r\n// 去掉动画效果\r\n::v-deep .el-list-enter-active,\r\n::v-deep .el-list-leave-active {\r\n transition: all 0s;\r\n}\r\n\r\n::v-deep .el-list-enter, .el-list-leave-active {\r\n opacity: 0;\r\n transform: translateY(0);\r\n}\r\n</style>\r\n\r\n"]}]}
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