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[vue] vue-router如何响应路由参数的变化？ #383

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haizhilin2013 opened this issue Jun 20, 2019 · 6 comments
Open

[vue] vue-router如何响应路由参数的变化？ #383

haizhilin2013 opened this issue Jun 20, 2019 · 6 comments
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@haizhilin2013
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[vue] vue-router如何响应路由参数的变化？
@haizhilin2013 haizhilin2013 added the vue vue label Jun 20, 2019
@wenyejie
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watch

@zhaoling906
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1.watch
2.在父组件的router-view上加个key

@LQY-3777
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ickt-5:
路由 vue-router 面试题:
https://blog.csdn.net/Arthas_Xue/article/details/101024666
在父组件的router-view上加个key:
https://www.jianshu.com/p/802f357d9699

@zlqGitHub
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zlqGitHub commented Dec 22, 2019 •
edited

问题：为什么要响应参数变化？

  • 切换路由，路由参数发生了变化，但是页面数据并未及时更新，需要强制刷新后才会变化。
  • 不同路由渲染相同的组件时（组件复用比销毁重新创建效率要高），在切换路由后，当前组件下的生命周期函数不会再被调用。

解决方案：

  1. 使用 watch 监听
watch: {
    $route(to, from){
        if(to != from) {
            console.log("监听到路由变化，做出相应的处理");
        }
    }
}
  1. 向 router-view 组件中添加 key
    <router-view :key="$route.fullPath"></router-view>

$route.fullPath 是完成后解析的URL，包含其查询参数信息和hash完整路径

@WenJieLi1998
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1.watch
2.导航守卫

@zhaoling906
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zhaoling906 commented Apr 19, 2020 via email

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@wenyejie @haizhilin2013 @WenJieLi1998 @zlqGitHub @zhaoling906 @LQY-3777