菜单的平面图详情点击跳转新页而不是路由跳转

src/layout/components/Sidebar/SidebarItem.vue

 <template>
   <div v-if="!item.hidden">
     <template v-if="item.showFather !== 'true' && hasOneShowingChild(item.children,item) && (!onlyOneChild.children||onlyOneChild.noShowingChildren)&&!item.alwaysShow">
-      <app-link v-if="onlyOneChild.meta" :to="resolvePath(onlyOneChild.path)">
+<!--      如果点击菜单是平面图详情则打开一个新的浏览器页面 target="_blank"-->
+      <app-link v-if="onlyOneChild.meta && onlyOneChild.path === '/template/planeGraphDetails'" :to="resolvePath(onlyOneChild.path)" target="_blank">
+        <el-menu-item :index="resolvePath(onlyOneChild.path)" :class="{'submenu-title-noDropdown':!isNest}">
+          <item :icon="onlyOneChild.meta.icon||(item.meta&&item.meta.icon)" :title="onlyOneChild.meta.title" />
+        </el-menu-item>
+      </app-link>
+      <app-link v-if="onlyOneChild.meta && onlyOneChild.path !== '/template/planeGraphDetails'" :to="resolvePath(onlyOneChild.path)">
         <el-menu-item :index="resolvePath(onlyOneChild.path)" :class="{'submenu-title-noDropdown':!isNest}">
           <item :icon="onlyOneChild.meta.icon||(item.meta&&item.meta.icon)" :title="onlyOneChild.meta.title" />
         </el-menu-item>