页面：wx.navigateTo({
            url: '/pages/webview/webview?url=' + encodeURIComponent(url),
        })
webView的json配置：
{
  "usingComponents": {},
  "homeButton":true
}
app.json:
 {
  "pages": [
    "pages/index/index",
    "pages/sxService/sxService",
    "pages/hall/hall",
    "pages/mine/mine",
    "pages/logs/logs",
    "pages/webview/webview",
    "pages/search/search",
    "pages/search_result/search_result",
    "pages/login/login",
    "pages/messageList/messageList",
    "pages/messageDetail/messageDetail",
    "pages/jumpWebView/jumpWebView"
  ],
  "window": {
    "navigationBarTextStyle": "black",
    "navigationBarTitleText": "Weixin",
    "navigationBarBackgroundColor": "#ffffff"
  },
  "usingComponents": {
    "footTab": "./components/footTab/footTab"
  },
  "componentFramework": "glass-easel",
  "sitemapLocation": "sitemap.json",
  "lazyCodeLoading": "requiredComponents",
  "requiredPrivateInfos": [
    "getLocation"
  ],
  "permission": {
    "scope.userLocation": {
      "desc": "你的位置信息将用于小程序位置接口的效果展示"
    }
  }
}