本地搜索使用json替换xml,速度更快

## xml文件格式本地测试
![](https://cdn.jsdelivr.net/gh/Rr210/image@master/hexo/api/20211006095512.png)
## json文件本地测试
![](https://cdn.jsdelivr.net/gh/Rr210/image@master/hexo/api/20211006095847.png)
## json文件线上测试
![](https://cdn.jsdelivr.net/gh/Rr210/image@master/hexo/api/20211006100635.png)
## 模式切换
两种模式 切换 只需要修改全局配置文件的搜索插件文件格式（json/xml）

source/js/search/local-search.js

@@ -41,20 +41,24 @@ window.addEventListener('load', () => {
     searchClickFn()
   })
 
-  function search (path) {
-    fetch(GLOBAL_CONFIG.root + path)
-      .then(response => response.text())
-      .then(str => new window.DOMParser().parseFromString(str, 'text/xml'))
-      .then(data => {
-        const datas = [...data.querySelectorAll('entry')].map(function (item) {
-          const content = item.querySelector('content')
+  async function search(path) {
+    let datas = []
+    const typeF = path.split('.')[1]
+    const response = await fetch(GLOBAL_CONFIG.root + path)
+    if (typeF === 'json') {
+      datas = await response.json()
+    } else if (typeF === 'xml') {
+      let res = await response.text()
+      let t = await new window.DOMParser().parseFromString(res, 'text/xml')
+      let a = await t
+      datas = [...a.querySelectorAll('entry')].map(function (item) {
         return {
           title: item.querySelector('title').textContent,
-            content: content ? content.textContent : '',
+          content: item.querySelector('content').textContent,
           url: item.querySelector('url').textContent
         }
       })
-
+    }
     const $input = document.querySelector('#local-search-input input')
     const $resultContent = document.getElementById('local-search-results')
     $input.addEventListener('input', function () {
@@ -100,6 +104,8 @@ window.addEventListener('load', () => {
           const content = data.content.trim().replace(/<[^>]+>/g, '')
           if (firstOccur >= 0) {
             // cut out 130 characters
+            // let start = firstOccur - 30 < 0 ? 0 : firstOccur - 30
+            // let end = firstOccur + 50 > content.length ? content.length : firstOccur + 50
             let start = firstOccur - 30
             let end = firstOccur + 100
 
@@ -142,6 +148,5 @@ window.addEventListener('load', () => {
       $resultContent.innerHTML = str
       window.pjax && window.pjax.refresh($resultContent)
     })
-      })
   }
 })