新增图片预览组件

ruoyi-ui/src/components/ImagePreview/index.vue

+<template>
+    <el-image :src="`${realSrc}`" fit="cover" :style="`width:${realWidth};height:${realHeight};`" :preview-src-list="[`${realSrc}`]">
+        <div slot="error" class="image-slot">
+          <i class="el-icon-picture-outline"></i>
+        </div>
+    </el-image>
+</template>
+
+<script>
+import { isExternal } from '@/utils/validate'
+
+export default {
+    name: 'ImagePreview',
+    props: {
+        src: {
+            type: String,
+            required: true
+        },
+        width: {
+            type: [Number, String],
+            default: ''
+        },
+        height: {
+            type: [Number, String],
+            default: ''
+        }
+    },
+    computed: {
+        realSrc() {
+            if (isExternal(this.src)) {
+                return this.src
+            }
+            return process.env.VUE_APP_BASE_API + this.src
+        },
+        realWidth() {
+            return typeof this.width == 'string' ? this.width : `${this.width}px`
+        },
+        realHeight() {
+            return typeof this.height == 'string' ? this.height : `${this.height}px`
+        }
+    }
+}
+</script>
+
+<style lang="scss" scoped>
+.el-image {
+    border-radius: 5px;
+    background-color: #ebeef5;
+    box-shadow: 0 0 5px 1px #ccc;
+    ::v-deep .el-image__inner {
+        transition: all 0.3s;
+        cursor: pointer;
+        &:hover {
+            transform: scale(1.2);
+        }
+    }
+    ::v-deep .image-slot {
+        display: flex;
+        justify-content: center;
+        align-items: center;
+        width: 100%;
+        height: 100%;
+        color: #909399;
+        font-size: 30px;
+    }
+}
+</style>

ruoyi-ui/src/main.js

@@ -29,6 +29,8 @@ import Editor from "@/components/Editor"
 import FileUpload from "@/components/FileUpload"
 // 图片上传组件
 import ImageUpload from "@/components/ImageUpload"
+// 图片预览组件
+import ImagePreview from "@/components/ImagePreview"
 // 字典标签组件
 import DictTag from '@/components/DictTag'
 // 头部标签组件
@@ -54,6 +56,7 @@ Vue.component('RightToolbar', RightToolbar)
 Vue.component('Editor', Editor)
 Vue.component('FileUpload', FileUpload)
 Vue.component('ImageUpload', ImageUpload)
+Vue.component('ImagePreview', ImagePreview)
 
 Vue.use(directive)
 Vue.use(plugins)