Several ways for Vue router to transfer parameters

Ichiro Qiu Shan 2020-11-13 02:57:18
ways vue router transfer parameters


vue-router There are two types of transfer parameters

  • Programming navigation router.push
  • Declarative navigation

Programming navigation router.push

There are two types of programming navigation pass parameters : character string 、 object .

character string
The way of string is to jump the routing address directly in the form of string , It's simple, but you can't pass parameters :

this.$router.push("home");

object
If you want to pass parameters, you write them in the form of objects , There are two ways : Named route 、 Query parameters , The following describes the usage and precautions of the two methods respectively .

Named route
The premise of naming a route is to name the route at the place where it is registered, such as :
 Insert picture description here
Named route delivery parameters need to use params To pass on , We must pay attention to the use of params No query. The goal is When the page receives the pass parameters, it uses params
Particular attention : Name the parameters passed in this way , If you refresh on the target page, there will be an error

How to use it is as follows :

this.$router.push({
 name: 'news', params: {
 userId: 123 }})

The code is as follows :

<template>
<div class="hello">
<h1>{
{
 msg }}</h1>
<button @click="routerTo">click here to news page</button>
</div>
</template>
<script>
export default {

name: 'HelloWorld',
data () {

return {

msg: 'Welcome to Your Vue.js App'
}
},
methods:{

routerTo(){

this.$router.push({
 name: 'news', params: {
 userId: 123 }});
}
}
}
</script>
<style>
</style>

Accept the parameters passed :

<template>
<div>
this is the news page.the transform param is {
{
this.$route.params.userId}}
</div>
</template>
<script>
</script>

The operation effect is as follows :
 Insert picture description here

Query parameters
In fact, query parameters are followed by parameters and traditional url The parameters are the same , Pass parameters using query And it has to work with path To pass parameters instead of using name, The target page receives the passed parameters using query.
Be careful : and name The pair is params, and path The pair is query
How to use it is as follows :

this.$router.push({
 path: '/news', query: {
 userId: 123 }});

The code is as follows :

<template>
<div class="hello">
<h1>{
{
 msg }}</h1>
<button @click="routerTo">click here to news page</button>
</div>
</template>
<script>
export default {

name: 'HelloWorld',
data () {

return {

msg: 'Welcome to Your Vue.js App'
}
},
methods:{

routerTo(){

this.$router.push({
 path: '/news', query: {
 userId: 123 }});
}
}
}
</script>
<style>
</style>

The receiving parameters are as follows :

<template>
<div>
this is the news page.the transform param is {
{
this.$route.query.userId}}
</div>
</template>
<script>
</script>

The operation effect is as follows :
 Insert picture description here

Declarative navigation

Declarative navigation is the same as programming navigation , I don't want to introduce too much here , Let's give a few examples to understand programmatically , Examples are as follows :

character string

<router-link to="news">click to news page</router-link>

Named route

<router-link :to="{ name: 'news', params: { userId: 1111}}">click to news page</router-link>

The operation effect is as follows :
 Insert picture description here
Query parameters

<router-link :to="{ path: '/news', query: { userId: 1111}}">click to news page</router-link>

The operation effect is as follows :

 Insert picture description here
The final summary : Routing parameters are the same as the traditional parameters , Named routes are similar to form submission and queries are url Pass on , stay vue After mastering these two kinds of transfer parameters, the project can cope with most applications , In the end, it concludes with the following two points :
1. Named route collocation params, Refresh page parameters will be lost
2. Query parameter collocation query, Refresh page data will not be lost
3. Accept parameters using this.$router After that, you can get the value of the parameter by matching the name of the route

版权声明
本文为[Ichiro Qiu Shan]所创,转载请带上原文链接,感谢

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