diff --git a/packages/uni-cli-shared/lib/cache.js b/packages/uni-cli-shared/lib/cache.js
index ef8e2969464c5c2f7beab77959a33eb228f8d881..e2f27650e67b37dd5336824b30dc1f23d29e3e0e 100644
--- a/packages/uni-cli-shared/lib/cache.js
+++ b/packages/uni-cli-shared/lib/cache.js
@@ -82,11 +82,14 @@ function updateComponentJson (name, jsonObj, usingComponents = true, type = 'Com
 
   const oldJsonStr = getJsonFile(name)
   if (oldJsonStr) { // update
-    if (usingComponents) { // merge usingComponents
+    if (usingComponents) { // merge usingComponents
       // 其实直接拿新的 merge 到旧的应该就行
       const oldJsonObj = JSON.parse(oldJsonStr)
-      jsonObj.usingComponents = oldJsonObj.usingComponents || {}
+      jsonObj.usingComponents = oldJsonObj.usingComponents || {}
       jsonObj.usingAutoImportComponents = oldJsonObj.usingAutoImportComponents || {}
+      if (oldJsonObj.genericComponents) {
+        jsonObj.genericComponents = oldJsonObj.genericComponents
+      }
       if (oldJsonObj.usingGlobalComponents) { // 复制 global components(针对不支持全局 usingComponents 的平台)
         jsonObj.usingGlobalComponents = oldJsonObj.usingGlobalComponents
       }
@@ -351,4 +354,4 @@ module.exports = {
   updateGenericComponents,
   getChangedJsonFileMap,
   getSpecialMethods
-}
+}
diff --git a/packages/vue-cli-plugin-uni/lib/h5/index.js b/packages/vue-cli-plugin-uni/lib/h5/index.js
index 2072a04d4fca01545daec95f79b952e683589a66..82a26ba4f54c627789432d91b96a678f1106f827 100644
--- a/packages/vue-cli-plugin-uni/lib/h5/index.js
+++ b/packages/vue-cli-plugin-uni/lib/h5/index.js
@@ -155,6 +155,9 @@ module.exports = {
         }
       },
       plugins,
+      optimization: {
+        moduleIds: 'hashed'
+      },
       devServer: {
         watchOptions: require('../util').getWatchOptions()
       }