1. 安装
//最好用最新的node版本,以支持最新的语法特性
npm install -g vue-cli
vue init nuxt/starter <project-name>
cd <project-name>
npm install
npm run dev
如果用axios做异步数据请求,还要安装axios
npm install axios --save-dev
2. 使用
在pages目录里添加一个文件,test.vue.
<template>
<h1>{{ title }}</h1>
</template>
<script>
//引入axios,还有很多比如superagent、needle等都可以。
import axios from 'axios';
export default {
//这里采用async/await方式进行异步数据加载
async asyncData(context){
console.log(context);
let {data}=await axios.get(`http://127.0.0.1:8002?message=${context.query.id}`);
console.log(data);
return {title: data.message};
}
}
</script>
其中asyncData的参数为context(https://zh.nuxtjs.org/api#%E4%B8%8A%E4%B8%8B%E6%96%87%E5%AF%B9%E8%B1%A1),如果只要query,也可以写成:
export default{
async asyncData({query}){
let {data}=await axios.get(`http://127.0.0.1:8002?message=${query.id}`);
return {title, data.message}
}
}
3. context自己打印了下自己的数据内容
{ isServer: [Getter],
isClient: [Getter],
isStatic: false,
isDev: true,
isHMR: false,
app:
{ router:
VueRouter {
app: [Vue$3],
apps: [Array],
options: [Object],
beforeHooks: [],
resolveHooks: [],
afterHooks: [],
matcher: [Object],
fallback: false,
mode: 'abstract',
history: [AbstractHistory] },
nuxt:
{ defaultTransition: [Object],
transitions: [Array],
setTransitions: [Function: setTransitions],
err: null,
dateErr: null,
error: [Function: error] },
head:
{ title: 'test1',
meta: [Array],
link: [Array],
style: [],
script: [] },
render: [Function: render],
data: [Function: data],
beforeCreate: [Function: beforeCreate],
created: [Function: created],
mounted: [Function: mounted],
watch: { 'nuxt.err': 'errorChanged' },
methods:
{ errorChanged: [Function: errorChanged],
setLayout: [Function: setLayout],
loadLayout: [Function: loadLayout] },
components: { NuxtLoading: [Object] },
context: [Circular] },
payload: undefined,
error: [Function: bound error],
base: '/',
env: {},
req:
IncomingMessage {
_readableState:
ReadableState {
objectMode: false,
highWaterMark: 16384,
buffer: [BufferList],
length: 0,
pipes: null,
pipesCount: 0,
flowing: null,
ended: true,
endEmitted: false,
reading: false,
sync: true,
needReadable: false,
emittedReadable: true,
readableListening: false,
resumeScheduled: false,
destroyed: false,
defaultEncoding: 'utf8',
awaitDrain: 0,
readingMore: true,
decoder: null,
encoding: null },
readable: true,
_events: {},
_eventsCount: 0,
_maxListeners: undefined,
socket:
Socket {
connecting: false,
_hadError: false,
_handle: [TCP],
_parent: null,
_host: null,
_readableState: [ReadableState],
readable: true,
_events: [Object],
_eventsCount: 10,
_maxListeners: undefined,
_writableState: [WritableState],
writable: true,
allowHalfOpen: true,
_bytesDispatched: 0,
_sockname: null,
_pendingData: null,
_pendingEncoding: '',
server: [Server],
_server: [Server],
_idleTimeout: 120000,
_idleNext: [Socket],
_idlePrev: [TimersList],
_idleStart: 6170607,
_destroyed: false,
parser: [HTTPParser],
on: [Function: socketOnWrap],
_paused: false,
_peername: [Object],
_httpMessage: [ServerResponse],
[Symbol(asyncId)]: 42218,
[Symbol(lastWriteQueueSize)]: 0,
[Symbol(bytesRead)]: 0,
[Symbol(asyncId)]: 42219,
[Symbol(triggerAsyncId)]: 42218 },
connection:
Socket {
connecting: false,
_hadError: false,
_handle: [TCP],
_parent: null,
_host: null,
_readableState: [ReadableState],
readable: true,
_events: [Object],
_eventsCount: 10,
_maxListeners: undefined,
_writableState: [WritableState],
writable: true,
allowHalfOpen: true,
_bytesDispatched: 0,
_sockname: null,
_pendingData: null,
_pendingEncoding: '',
server: [Server],
_server: [Server],
_idleTimeout: 120000,
_idleNext: [Socket],
_idlePrev: [TimersList],
_idleStart: 6170607,
_destroyed: false,
parser: [HTTPParser],
on: [Function: socketOnWrap],
_paused: false,
_peername: [Object],
_httpMessage: [ServerResponse],
[Symbol(asyncId)]: 42218,
[Symbol(lastWriteQueueSize)]: 0,
[Symbol(bytesRead)]: 0,
[Symbol(asyncId)]: 42219,
[Symbol(triggerAsyncId)]: 42218 },
httpVersionMajor: 1,
httpVersionMinor: 1,
httpVersion: '1.1',
complete: true,
headers:
{ host: '127.0.0.1:3000',
connection: 'keep-alive',
'upgrade-insecure-requests': '1',
'user-agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.186 Safari/537.36',
accept: 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8',
'accept-encoding': 'gzip, deflate, br',
'accept-language': 'zh-CN,zh;q=0.9,en;q=0.8',
cookie: 'a=b; c=d',
'if-none-match': '"a53-3V9JYObNkQg1JKD2m66uXHxjsR8"' },
rawHeaders:
[ 'Host',
'127.0.0.1:3000',
'Connection',
'keep-alive',
'Upgrade-Insecure-Requests',
'1',
'User-Agent',
'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.186 Safari/537.36',
'Accept',
'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8',
'Accept-Encoding',
'gzip, deflate, br',
'Accept-Language',
'zh-CN,zh;q=0.9,en;q=0.8',
'Cookie',
'a=b; c=d',
'If-None-Match',
'"a53-3V9JYObNkQg1JKD2m66uXHxjsR8"' ],
trailers: {},
rawTrailers: [],
upgrade: false,
url: '/test?id=123',
method: 'GET',
statusCode: null,
statusMessage: null,
client:
Socket {
connecting: false,
_hadError: false,
_handle: [TCP],
_parent: null,
_host: null,
_readableState: [ReadableState],
readable: true,
_events: [Object],
_eventsCount: 10,
_maxListeners: undefined,
_writableState: [WritableState],
writable: true,
allowHalfOpen: true,
_bytesDispatched: 0,
_sockname: null,
_pendingData: null,
_pendingEncoding: '',
server: [Server],
_server: [Server],
_idleTimeout: 120000,
_idleNext: [Socket],
_idlePrev: [TimersList],
_idleStart: 6170607,
_destroyed: false,
parser: [HTTPParser],
on: [Function: socketOnWrap],
_paused: false,
_peername: [Object],
_httpMessage: [ServerResponse],
[Symbol(asyncId)]: 42218,
[Symbol(lastWriteQueueSize)]: 0,
[Symbol(bytesRead)]: 0,
[Symbol(asyncId)]: 42219,
[Symbol(triggerAsyncId)]: 42218 },
_consuming: false,
_dumped: false,
originalUrl: '/test?id=123',
_parsedUrl:
Url {
protocol: null,
slashes: null,
auth: null,
host: null,
port: null,
hostname: null,
hash: null,
search: '?id=123',
query: 'id=123',
pathname: '/test',
path: '/test?id=123',
href: '/test?id=123',
_raw: '/test?id=123' },
_parsedOriginalUrl:
Url {
protocol: null,
slashes: null,
auth: null,
host: null,
port: null,
hostname: null,
hash: null,
search: '?id=123',
query: 'id=123',
pathname: '/test',
path: '/test?id=123',
href: '/test?id=123',
_raw: '/test?id=123' } },
res:
ServerResponse {
_events: { finish: [Function: bound resOnFinish] },
_eventsCount: 1,
_maxListeners: undefined,
output: [],
outputEncodings: [],
outputCallbacks: [],
outputSize: 0,
writable: true,
_last: false,
upgrading: false,
chunkedEncoding: false,
shouldKeepAlive: true,
useChunkedEncodingByDefault: true,
sendDate: true,
_removedConnection: false,
_removedContLen: false,
_removedTE: false,
_contentLength: null,
_hasBody: true,
_trailer: '',
finished: false,
_headerSent: false,
socket:
Socket {
connecting: false,
_hadError: false,
_handle: [TCP],
_parent: null,
_host: null,
_readableState: [ReadableState],
readable: true,
_events: [Object],
_eventsCount: 10,
_maxListeners: undefined,
_writableState: [WritableState],
writable: true,
allowHalfOpen: true,
_bytesDispatched: 0,
_sockname: null,
_pendingData: null,
_pendingEncoding: '',
server: [Server],
_server: [Server],
_idleTimeout: 120000,
_idleNext: [Socket],
_idlePrev: [TimersList],
_idleStart: 6170607,
_destroyed: false,
parser: [HTTPParser],
on: [Function: socketOnWrap],
_paused: false,
_peername: [Object],
_httpMessage: [Circular],
[Symbol(asyncId)]: 42218,
[Symbol(lastWriteQueueSize)]: 0,
[Symbol(bytesRead)]: 0,
[Symbol(asyncId)]: 42219,
[Symbol(triggerAsyncId)]: 42218 },
connection:
Socket {
connecting: false,
_hadError: false,
_handle: [TCP],
_parent: null,
_host: null,
_readableState: [ReadableState],
readable: true,
_events: [Object],
_eventsCount: 10,
_maxListeners: undefined,
_writableState: [WritableState],
writable: true,
allowHalfOpen: true,
_bytesDispatched: 0,
_sockname: null,
_pendingData: null,
_pendingEncoding: '',
server: [Server],
_server: [Server],
_idleTimeout: 120000,
_idleNext: [Socket],
_idlePrev: [TimersList],
_idleStart: 6170607,
_destroyed: false,
parser: [HTTPParser],
on: [Function: socketOnWrap],
_paused: false,
_peername: [Object],
_httpMessage: [Circular],
[Symbol(asyncId)]: 42218,
[Symbol(lastWriteQueueSize)]: 0,
[Symbol(bytesRead)]: 0,
[Symbol(asyncId)]: 42219,
[Symbol(triggerAsyncId)]: 42218 },
_header: null,
_onPendingData: [Function: bound updateOutgoingData],
_sent100: false,
_expect_continue: false,
statusCode: 200,
[Symbol(isCorked)]: false,
[Symbol(outHeadersKey)]: null },
redirect: [Function],
beforeNuxtRender: [Function],
next: [Function],
_redirected: false,
_errored: false,
route:
{ name: 'test',
meta: [ {} ],
path: '/test',
hash: '',
query: { id: '123' },
params: {},
fullPath: '/test?id=123',
matched: [ [Object] ] },
params: {},
query: { id: '123' } }
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