Seven methods for VUE to refresh the current page

Use the location.reload() method to refresh the page.

You can simply refresh the current page using location.reload()the method. This method will reload the current page, similar to the user clicking the browser's refresh button.

In Vue, you can bind this method to the Vue instance, for example, add the following method in Vue's methods:

methods: {
  refresh() {
    location.reload();
  }
}

Then call this method in the template to refresh the page:

<button @click="refresh">刷新页面</button>

It should be noted that this method will reload the entire page. If you want to refresh part of the page, you can consider using some of Vue's own features, such as updating the component by setting the key attribute of the component, or forcing the component to update by calling a method $forceUpdate(). .

When routing jumps, use the $router.go(0) method to refresh the current page.

methods: {
  refresh() {
    this.$router.go(0)
  }
}

The $router.go(0) method can refresh the current page. It will reload the component corresponding to the current route, which is equivalent to re-rendering the page. After you have made some changes to the current page, you can use this method to refresh the page so that the changes take effect.

The $router.go(0) method only applies to the current route. If you want to refresh the page corresponding to another route, you need to use other methods, such as redirecting to the route of the page or refreshing the entire application.

In the component, set the key attribute of the component to trigger the re-rendering of the component, thereby refreshing the page.

In Vue, each component has a unique key attribute. When the key attribute of a component changes, Vue will treat it as a new component instead of reusing the previous component. This will trigger the re-rendering of the component, thereby refreshing the page.

Set the key attribute on the component that needs to be refreshed. It can be set to a string, number or variable, for example:

<template>
  <my-component :key="refreshKey"></my-component>
</template>
<script>
export default {
  data() {
    return {
      refreshKey: 0 // 初始值为0
    }
  },
  methods: {
    handleRefresh() {
      // 点击刷新按钮，改变 refreshKey 的值触发组件的重新渲染
      this.refreshKey++
    }
  }
}
</script>

In the component, use the $emit method or the $parent parent component method to trigger the handleRefresh function and change the value of refreshKey.

<template>
  <button @click="handleRefresh">刷新</button>
</template>
<script>
export default {
  methods: {
    handleRefresh() {
      this.$emit('refresh') // 触发当前组件的 refresh 事件
      // 或者
      this.$parent.handleRefresh() // 触发父组件的 handleRefresh 方法
    }
  }
}
</script>

The component will be re-rendered to achieve a page refresh effect.

Note: The events triggered or the parent component methods called in the second step need to be monitored or defined in the parent component of the component. For example, listen to the refresh event of the child component in the parent component:

<template>
  <my-component @refresh="handleRefresh"></my-component>
</template>
<script>
export default {
  methods: {
    handleRefresh() {
      // 刷新操作
    }
  }
}
</script>

Use window.location.href = window.location.href to refresh the current page.

You can also use Vue window.location.href = window.location.hrefto refresh the current page. This method will reload the page corresponding to the current URL to achieve a page refresh effect. This operation can be performed in Vue's methods, for example:

<template>
  <div>
    <button @click="refreshPage">刷新</button>
  </div>
</template>
<script>
export default {
  methods: {
    refreshPage() {
      window.location.href = window.location.href
    }
  }
}
</script>

It should be noted that using this method will refresh the entire page, including Vue instances, components and other page elements, which may cause some unnecessary overhead and is not an optimal solution. For partial refresh of Vue components, you can consider using the component's key attribute or state management tools such as Vuex for management.

Use the window.location.reload(true) method to refresh the current page, where true means forcing cache refresh.

window.location.reload(true)The parameter in trueactually means forcing the use of cache for refresh, rather than forcing the use of cache refresh. If set to true, the browser will load page resources from the cache instead of re-requesting resources from the server. This has the opposite effect of forcing cache flushing.

Correspondingly, if the parameter is set to falseor omitted, the browser will ignore the cache and force the resource to be re-requested from the server to achieve a true refresh effect.

In Vue, you can use code similar to the following to refresh the page:

<template>
  <div>
    <button @click="refreshPage">刷新</button>
  </div>
</template>
<script>
export default {
  methods: {
    refreshPage() {
      window.location.reload()
    }
  }
}
</script>

Note: This method will refresh the entire page, including Vue instances, components and other page elements, which may cause some unnecessary overhead and is not an optimal solution. For partial refresh of Vue components, you can consider using the component's key attribute or state management tools such as Vuex for management.

Use the http-equiv attribute in the meta tag to set it to refresh to automatically refresh the page.

You can use the attribute meta>in the < tag to automatically refresh the page in conjunction with the attribute.http-equivcontent

Specifically, you can head>add the following code in the < area of the HTML document:

<meta http-equiv="refresh" content="5">

Among them, http-equivthe attribute tells the browser which HTTP method to use to process the page. Setting it here refreshmeans that the browser should refresh the page regularly. contentThe attribute specifies the refresh interval, which is set to 5 seconds here.

However, using metathe automatic refresh function implemented by tags, users cannot manually stop the refresh or modify the refresh interval, which may have a certain impact on the user experience. It is recommended to consider carefully when using this function and balance the refresh frequency and user experience.

In the component that needs to be refreshed, the $forceUpdate() method is used to force the component to be updated, thereby refreshing the page.

In Vue, you can use $forceUpdate()the method to implement forced updates of a component to refresh the page.

Specifically, when the data of a component changes, but the view of the component is not updated in time, resulting in the page not being rendered correctly, you can call the method in the component that needs to be refreshed to force an update $forceUpdate().

For example, if you need to refresh the page in a method of a component, you can call it like this:

methods: {
  refresh() {
    this.$forceUpdate();
  }
}

However, because $forceUpdate()it forces the entire component to be updated, all sub-components of the component will also be re-rendered, which may affect the performance of the entire page. Therefore, this method should be used with caution and only when necessary.