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6.2、在表单中使用双向数据绑定# t* U: t! J# Q% u# p( i5 C
你可以用v-model指令在表单、及元素上创建双向数据绑定。它会根据控件类型自动选取正确的方法来更新元素。尽管有些神奇, 但v-model本质上不过是语法糖。它负责监听用户的输入事件以更新数据,并对一些极端场景进行一些特殊处理。& G; m5 Q, y9 ~& {
注意:v-model会忽略所有表单元素的value、checked、selected特性的初始值而总是将Vue实例的数据作为数据来源。你应该通过JavaScript在组件的data选项中声明初始值! 4 w' i4 |* k* I0 v: ~. R9 J: o; M- ?+ @ g9 c# t& J5 y1 a) Z+ U
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(1)单行文本 / d1 |9 k6 Z8 M8 y0 a% ?& N3 a<!DOCTYPE html> ' Y- |5 \( e$ b* T' s4 F<html lang="en"> 8 J, E( m, ], P# x8 S# z: M" o<head> 8 P0 p( O: G" d- T/ O <meta charset="UTF-8">, A- h. }/ `! x* l8 b6 L/ i
<title>Title</title>) R6 z& j% P/ w3 W) C3 n" T
</head> ; F6 n l2 f( Z8 K0 x4 N<body> 5 f7 X( {$ ~+ ?& r7 F. w: H6 a- V<div id="app">- h0 u0 [' G8 p5 x
输入的文本:<input type="text" v-model="message" value="hello">{{message}} % R0 ?, \, u+ }6 c' D* u0 d</div> 4 ]: Q, h2 f3 i) a : T5 x) v B7 @7 h+ B * H) @* c' B$ C9 v- D7 `* r1 P<script src="../js/vue.js"></script> # h! D5 M/ ]5 c2 L; H7 u' z<script type="text/javascript">8 K! J7 ]( p# l* D8 w! F3 U
var vm = new Vue({3 y+ k7 Y: p% A8 W
el:"#app",; ` v+ o5 ~, k- `2 i' r3 l( @
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<title>Title</title> & J5 {6 y# \8 n1 f! n4 M, \" J</head> , G1 p' I6 u2 `1 U3 i/ w9 _<body>0 j3 {- s# J6 Z! f
<div id="app">1 v3 f' S- d# {
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el:"#app", 5 n% D- q+ Z m/ c) H( Y0 S data:{ ) j2 J9 y. s% X: S9 O# I3 ^ message:"Hello hello!"$ z6 p, |5 X3 c
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<!DOCTYPE html>9 G3 u, K: e7 z& f
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<body>: f- X9 _, P, ], H, m% L/ Y1 x
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w J- h/ G3 o# I <label for="jack">Jack</label> + ?8 G. j2 v6 ?8 ]6 E <input type="checkbox" id="join" value="Join" v-model="checkedNames"> + \' G. _6 z' c7 S% _ 3 P& U/ T0 ]. H' | <label for="join">Jack</label>$ v9 ^! L' B, b* e5 Q
<input type="checkbox" id="mike" value="Mike" v-model="checkedNames">" b+ l/ W3 _. @1 z G: M4 f
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<label for="mike">Mike</label> # m2 G9 M: G5 c. C/ H <span>选中的值:{{checkedNames}}</span>) |: Q" M1 \- S5 S8 J6 V
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<!DOCTYPE html>+ q( t. z6 u7 E+ ~5 ?1 U: t
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<title>Title</title> ; r: z! K% l$ I7 W3 M: \</head> " A ? F0 ], D4 G2 i+ P7 J<body> : R/ q b. W2 Y. h. x : U6 b! ~& D( n! P; ^, n* L: u0 c9 U
<div id="app">/ A& T7 N; M& a' k+ N+ a
单选框按钮 % q- A6 V3 r) j <input type="radio" id="one" value="One" v-model="picked">9 D2 v4 O, q2 Y& L0 a) m
<label for="one">One</label> ) S: v: C& G* N& D2 q2 p. _2 k, N$ }$ h1 ^ <input type="radio" id="two" value="Two" v-model="picked">, r- N' f" ^ P) `
<label for="two">Two</label>2 L' Y5 N2 O E7 p
<span>选中的值:{{picked}}</span> ( w( z$ f" L" {9 @! ^: w</div>* ?( P) S- }; T9 d0 P B9 V
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var vm = new Vue({. o" O6 c' f9 Y& h
el:"#app", $ h$ z; Z* J9 T' a% E9 d data:{+ f5 s+ u& s2 B7 y
picked:'Two'! K& H/ A. M4 J/ M1 _% W
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});5 E2 x# R$ {# t- V- {- l8 e# ]/ q2 x
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<body> ( B" q7 n& {' l, H% J3 }) l<div id="app">7 g' U1 i' ^2 f8 V- R
<!-- 性别: % {' V6 |) L( Z3 P- A <input type="radio" name="sex" value="男" v-model="pan">男 ) ]: i) b: f6 x <input type="radio" name="sex" value="女" v-model="pan">女 9 E; @5 l, p; H* A4 K <p>选中了:{{pan}}</p>--> 2 R+ }9 W3 K9 l9 v: V# S2 f2 [3 C; s0 q9 f
2 t7 @1 C7 W; S2 u {* V$ W 下拉框:, j* \! g& n; E8 a
<select v-model="pan"> . D5 F" r( A; F" c; U) M; b ] <option value="" disabled>---请选择---</option> % _+ ?; k( @4 d: | <option>A</option> 1 I! U6 R3 t* ~6 j; D <option>B</option>" H" W Z8 H5 \/ u
<option>C</option>6 j, _8 b) k7 k0 k3 m4 B0 M
<option>D</option> 4 L# `2 O* n! s" X: P% W# m; d+ B </select> 5 m: [7 Y; I1 M. ] }* ` <span>value:{{pan}}</span>( \# @0 g# A7 p) ]- q) C
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el:"#app",% h4 n8 W3 B- G- |' R, v2 T
data:{7 `, Y2 q) e- l" U1 p$ E- i
pan:"A" 1 ~4 { }9 T( e }, S7 ~: q8 D, U6 h3 b+ E( X
}); " i% |: p- v& B</script> . w: f8 U0 E+ l R" y</body> # F3 t% q: @& @5 o! W</html>" c0 ^: L; z. i8 U6 @7 L- B- z
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36 ' ^2 j. \6 B, U, x3 Z- ^ s37 + @# n. W( c: m/ N38 ' q9 D3 ?3 }( H, E* |! i% u" x( X n注意:v-model表达式的初始值未能匹配任何选项,元系将被渲染为“未选中”状态。 在iOS中, 这会使用户无法选择第一个选项,因为这样的情况下,iOS不会触发change事件。因此,更推荐像上面这样提供一个值为空的禁用选项。 & f V/ h: ^7 m! C" H, K; S/ _7 k6 x, l, H, q# {$ r
) K! m6 W) A. c' ?/ l& A<template>( q% T, m. n" \) g; O- I6 J
<div>6 a5 ^' y, }% Q9 `( W7 v& ~* _/ w
<h1>内容页</h1> 9 e0 r0 t k) l; M </div> 3 u( k* x8 u I# n( @* B" Z' H</template>( p$ q% c$ j2 a4 o4 u/ s% F3 d
5 \5 N1 r8 {" Q" l4 }. ] ' W* P2 w% y: q- `. @, g<script> . t/ ?$ ]( }6 n# [" S) A2 i. K export default { 4 }* X& i/ X0 o. K' m9 z8 j* I name:"Content"/ y+ _ o/ _3 l
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<template> ; H9 _" ^! }/ d$ m s( X <div> - ]+ R' Q4 T* M f <h1>首页</h1>) I6 K# ]( ?' M2 v1 A+ s
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<script> # P' ~- b5 ]' B- A export default { " p2 j7 K: M, F K8 d# e8 _* H name:"Main" ! Y y, C& M1 S6 t# @4 C! W9 r }+ b9 d2 K& ^! H) u3 o2 T3 H
</script> 2 B' e+ k; E( U1 z% n" s1 : `1 f5 b1 G6 k29 j' B& u) k3 m0 `- e
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4、安装路由,在src目录下,新建一个文件夹:router,专门存放路由,配置路由index.js,如下 # U7 e3 h% J7 r. L/ z7 I: C8 A' R0 z; `) k M& p" d
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import Vue from'vue'# _# }% H# _) m0 q
//导入路由插件2 P7 m6 ~, o* K9 x8 {
import Router from 'vue-router' 6 o3 t0 @3 F! R5 @( y//导入上面定义的组件7 E+ U5 F, ]" J% |) D
import Content from '../components/Content' 8 e7 K1 s( B. C7 b% ~. {6 I1 Mimport Main from '../components/Main' ; W) y3 J% w i//安装路由' u/ `! A$ g, R3 G% I6 X8 H5 @
Vue.use(Router) ;. P+ `; n- V. D Z
//配置路由3 |* R' F& A1 i1 N: O8 c
export default new Router({3 z8 q1 ^, I8 {% t0 A" G
routes:[7 X5 [ y L7 h; S: i' U/ ~
{ K0 F* A7 t# L! Z' E$ `
//路由路径1 M0 U% N4 F& K$ w
path:'/content',5 J8 g) X8 x0 h
//路由名称! }, Y3 a/ d2 r& O" g* ]% ~1 V
name:'content',4 y! V- C" @" U/ p
//跳转到组件" b8 [1 T0 C+ ` G8 b" I
component:Content 9 T$ s* ^2 }/ H G9 Q },{ ' U3 Y1 U8 j0 f' b% Z //路由路径# {. F- @ ~+ C4 J% b+ I( m9 y6 {
path:'/main',- O$ s! V7 P F( [5 C+ `, i7 ?
//路由名称 0 c# H% k! c7 D7 t- F name:'main'," M! c8 g0 r9 o
//跳转到组件) p$ @9 w( h, a1 g D6 ~
component:Main0 @- Z- y9 Z8 `
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5、在main.js中配置路由; K5 v8 X; S$ u2 q8 \
8 l4 A) ]# d; O$ F* {2 S$ L 4 L2 W9 }) m, s% z+ o( iimport Vue from 'vue'2 \4 J2 [0 `- @
import App from './App' * V$ s0 |# w+ h9 l- H! k8 v0 R# {9 M, N7 T4 N
4 N% y/ M! ?7 X* j( E, A//导入上面创建的路由配置目录. V9 w, ~+ x' P0 E) Q2 R3 j
import router from './router'//自动扫描里面的路由配置 $ ~8 \' a$ W( B/ @, L w$ s . Z4 V4 I4 E; ?1 @0 J% w2 [! ^0 F4 c- \ Z6 p
//来关闭生产模式下给出的提示 & q& l2 H9 p9 ?6 O; C0 ?( h0 q+ CVue.config.productionTip = false;- g; u7 D1 H- }: s Y7 |
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new Vue({6 ?) ^9 P, M: a( r
el:"#app",2 u3 @1 w" K3 I0 ~3 ~
//配置路由: S5 ]( x7 F. D$ D/ b; I9 }
router,- d4 Y* a, C4 E/ y
components:{App},0 y D9 V" t% j4 e. }
template:'<App/>' : c: V8 n5 R T5 l6 R) w}); 7 T9 _, [& I/ E9 j o9 N. H; W1 9 S* w U; o" S5 S* i( |5 F2 3 E) t& v' E+ i9 w; i; @) O3 1 }4 `2 U) I8 Y2 ^) ]3 y1 D* R6 B4 h4+ ^ c3 A* o8 ]* m. ]9 I
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16 1 v$ m) i' @, a8 r3 j6、在App.vue中使用路由' W7 g" F* c6 I/ F7 d/ k3 X
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<template>& s* i3 Z( r' p# b
<div id="app">/ M+ J {3 d! m z) ^& B
<!-- 2 h7 n" X& N& r+ d router-link:默认会被渲染成一个<a>标签,to属性为指定链接$ r& l" `+ s4 ~9 f! X
router-view:用于渲染路由匹配到的组件7 T6 D j7 ?' u
--> , r9 M2 C( T% K4 E1 P <router-link to="/">首页</router-link> ( U$ y6 C5 m8 K K+ D+ H K <router-link to="/content">内容</router-link>5 u1 w3 C) c. m( J. X. j2 Y, J
<router-view></router-view> 2 R; a, C z/ u" q; O; g$ ]' I </div> / b. x# Z( v0 [7 c+ `</template> V h/ W/ M3 w0 R8 M: D % E' b: \! `$ c s6 s& n + |* p9 u8 d* J5 B! f<script>! b- T, a" P+ k# b, e
export default{ , f' S' ]+ q# x- F, | name:'App'$ y! L3 E, U* Z* r
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</script>5 a5 I5 s7 ]2 Q
<style></style> 9 @$ S2 O% c+ e* C, [, L+ h1 * ?6 _% w/ Q5 P6 t: W" c2 2 Z6 Y+ {6 P6 i2 U* f; C3) }2 j$ b) k- J. s
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17 0 z# N( Q2 K: B$ j% T6 A' }18 ( q4 X% q+ J6 C1 r; E十二、实战快速上手 3 Y/ @. p( m1 ]' I. I }# ]1 \我们采用实战教学模式并结合ElementUI组件库,将所需知识点应用到实际中,以最快速度带领大家掌握Vue的使用; ' d' X1 ]. M2 A6 l/ Q7 C* ` 9 W' d4 H3 I9 ^9 A+ d) P; v4 P9 v6 I1 [
12.1、创建工程 ; U' D5 ]4 ~& O, R注意:命令行都要使用管理员模式运行5 a2 E* [- u1 c! z9 ?1 M
1、创建一个名为hello-vue的工程vue init webpack hello-vue7 Z3 T, K4 L8 [1 V T& o3 [8 _
2、安装依赖, 我们需要安装vue-router、element-ui、sass-loader和node-sass四个插件 , [% h S9 P7 O+ L3 [" |7 y8 B6 m2 K3 e9 o: y# f
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#进入工程目录 8 C2 @8 w r9 n; pcd hello-vue ( E8 Y! q3 B! P" f7 z, m#安装vue-routern 3 ^) b8 k8 `* J/ Cnpm install vue-router --save-dev ! S; a1 I9 ?: e9 Y8 z#安装element-ui8 Q7 [5 H0 ~' q9 |( w! y |: [* k9 s
npm i element-ui -S5 v. @/ e5 {8 v5 Y" R# ~9 `
#安装依赖 ' @3 a2 s8 @* wnpm install & f$ ~3 A8 ~/ d9 p1 o# 安装SASS加载器0 J3 |1 i3 ^% D" p9 }# L
cnpm install sass-loader node-sass --save-dev a: ]4 z/ D6 G/ j- H$ S#启功测试- H. x( F. I9 N- x! F8 B9 E9 k
npm run dev 6 z: K9 t% K2 z4 D3 f1( l5 X; ~4 A/ I- G# J3 \
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3、Npm命令解释: ! C- p9 J, K$ o, d. q 7 H& C# e0 B3 J% Z* Q: }0 a7 A4 n0 g$ x- M2 ^+ A
npm install moduleName:安装模块到项目目录下 - \5 W2 f [* ?npm install -g moduleName:-g的意思是将模块安装到全局,具体安装到磁盘哪个位置要看npm config prefix的位置$ O( O* v9 s* m: t
npm install -save moduleName:–save的意思是将模块安装到项目目录下, 并在package文件的dependencies节点写入依赖,-S为该命令的缩写 ) A3 ~3 z- x; Inpm install -save-dev moduleName:–save-dev的意思是将模块安装到项目目录下,并在package文件的devDependencies节点写入依赖,-D为该命令的缩写$ y3 t$ Q$ R+ M* R J: h& {2 e
12.2、创建登录页面 - S. `+ L; g# N, d& X" [把没有用的初始化东西删掉!; M2 Z9 H7 d) z& [, N# ~7 q. O7 U- I
在源码目录中创建如下结构:% ]5 ]$ { P e& b0 O
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( @" {% W% h" Yassets:用于存放资源文件4 B) U; @( ~( _" I {
components:用于存放Vue功能组件$ d p [- A) k- C7 O2 J
views:用于存放Vue视图组件9 P1 b8 E% z/ s) v" x' V
router:用于存放vue-router配置 ( L6 a4 X0 K5 Z; {: M& \) u 6 f8 ^- F5 M5 Y 9 k' B" D0 o4 E4 k7 q & f. W- h0 C! |6 G( C9 d 2 Y2 B; V: d* K6 G1 ]" m2 i8 X创建首页视图,在views目录下创建一个名为Main.vue的视图组件:" I8 {2 g7 H k- w2 ^
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5 L! [- n7 r) Z& A<template> , F1 p; V* l9 K9 v <div>首页</div> - m' n: z7 N, z( b7 z</template>. b, I4 P3 B7 j2 q
<script>- l2 { b6 r5 A- I
export default {5 m; M7 I6 m; O3 Q" s; n
name:"Main" ' ~! F9 b2 v6 [; e } . K$ M$ q' o& U5 j7 {) x# f</script> ' u+ G- R+ [! D<style scoped>0 e( L' ?) q) K1 y
</style> - x& a; u' J+ ^5 j+ ?* V19 J; s! u* Q ~' O% P' i" Q5 P
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创建登录页视图在views目录下创建名为Login.vue的视图组件,其中el-*的元素为ElementUI组件;% r$ s7 D4 y: ~& g6 l& e+ }$ d
6 @2 b3 o6 a2 @% t5 y 9 u$ h' r7 k3 T; g2 r a<template>* w7 W, f, `/ A l& B* K
<div>4 w3 I, g9 S) i2 ^
<el-form ref="loginForm" :model="form" :rules="rules" label-width="80px" class="login-box"> : X- T- k2 D& H& ^ <h3 class="login-title">欢迎登录</h3> # U& n$ G! \8 ], S7 f+ i <el-form-item label="账号" prop="username">) }0 z" Q; d& J8 C/ V, P- p O, _
<el-input type="text" placeholder="请输入账号" v-model="form.username"/>3 W5 @, P1 Q! P$ g
</el-form-item>( K, X! B' I/ w; ^* c0 v6 j
<el-form-item label="密码" prop="password"> ! O0 _% {$ r' g* l2 b <el-input type="password" placeholder="请输入密码" v-model="form.password"/> * d! T# E8 j) I7 t' s1 Z* ]% [: F </el-form-item>. ]2 M- a% ^7 Z! L2 \( @4 R
<el-form-item> ; P+ l6 ]) ^# X8 F0 p <el-button type="primary" v-on:click="onsubmit('loginForm')">登录</el-button>% f6 o, J# [ u9 e) _1 q3 N
</el-form-item>& P9 z' }, f: Y
</el-form> 1 d4 l2 h9 M. H6 ^( U1 k' e7 V 2 v% d k+ b& f: C1 ]. W + V: x; v+ y7 k" G# Z3 k: o$ B <el-dialog title="温馨提示" :visible.sync="dialogVisiable" width="30%" :before-close="handleClose">( h6 p" P$ g( U! D2 W
<span>请输入账号和密码</span> 6 e/ b; Y5 Z8 ?. m( k5 C <span slot="footer" class="dialog-footer"> & c1 G8 ~5 [/ a+ a2 E( D1 o <el-button type="primary" @click="dialogVisible = false">确定</el-button> * G# L" F3 a; ?+ ~$ j* ]8 { </span>$ X8 ]: q' J, N; g3 B
</el-dialog> ! F* }% \, a; o. V# g, v </div> / h/ [2 D' S+ F6 h8 `$ d, E$ F" f/ L</template>2 p) _7 L( {$ B
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<script> 4 }8 k% |* k# p export default { 1 z2 O# P2 K" `4 b$ m$ k) J5 z8 @ name: "Login", " J" s( G5 s+ @- F9 h6 E data(){ : \! M6 y) o) M$ ` T6 E return{# [ }( f I6 J+ Z1 O
form:{6 A5 {0 c) [4 W& b# Z
username:'',! Q2 K) U, b0 j: G. q+ N9 A v
password:'' ! ?0 }" C3 x5 X: j4 {* h' x1 X v }, 7 I, }8 c4 F" b( ^1 o //表单验证,需要在 el-form-item 元素中增加prop属性. u% Z1 K# H9 W Q9 v* }
rules:{ - Y4 e* x% S0 |! A: e7 Z$ p* X username:[( y" n+ w! Q+ R% m0 R. k
{required:true,message:"账号不可为空",trigger:"blur"} + w; E' H7 [" P- B7 r/ ? ],. J3 f0 [9 `7 f7 V4 R+ _
password:[1 K, y- K$ Q+ U& S: j/ d6 @, D
{required:true,message:"密码不可为空",tigger:"blur"}0 P/ C! S% S$ V: C$ }
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//对话框显示和隐藏 , @4 z% u! U0 X8 Q/ S dialogVisible:false - J( i: E+ v( X9 n. \ }2 x; ^. L3 A( U) R7 W/ @) u
}, 1 l1 S! t p5 {8 Q L methods:{7 b, l; B- ~- M, M
onSubmit(formName){. B& L8 f) v c% @* } E
//为表单绑定验证功能 2 N, {, H w8 I this.$refs[formName].validate((valid)=>{ , R) [ r( j, z, Z$ o( C" F! `) n if(valid){ . B; Y: ^7 C1 F) d6 b' M //使用vue-router路由到指定界面,该方式称为编程式导航 H. ^" |' H( X1 a# A, H9 S4 |
this.$router.push('/main');% C& o5 }8 S3 p8 F6 Z
}else{ 4 |" e A" G; a8 ?; M this.dialogVisible=true; 2 n8 G6 D( `& l" r+ o& E4 Z, h return false; ( N; K6 q$ e7 i: Z2 \ }: v" @. i: d* Q% W& U
});; ~ G' W9 t* q2 a7 Y
} 0 c+ q' I9 J1 x3 p! N% j& ? } * K- V$ T9 d- ]. b } 9 t6 H% t0 Z! K- @) q& W</script> . @7 Z: c0 @- `$ @* g1 `1 w8 O1 S+ [* ?+ A; J' D$ g. d. O5 ?
: I" m' D3 S K; z( `& O; H<style lang="scss" scoped> . K3 G5 K u4 f; V8 q) K .login-box{5 d; p& J# S6 \ Q6 q
border:1px solid #DCDFE6; " e) ]* x8 c, v" }* r7 ~# |+ p1 ~ width: 350px;0 G& G% L+ G. s$ A
margin:180px auto;: ^+ X' z. {) Q: l" N! o: F
padding: 35px 35px 15px 35px;- _4 e) ?* Z4 s
border-radius: 5px;) s+ N3 N1 k' q5 n2 |& C
-webkit-border-radius: 5px; 9 C& A' p/ _/ p/ c/ t -moz-border-radius: 5px; - \3 \1 `8 S2 Q" R* A box-shadow: 0 0 25px #909399; 8 N' ^* a5 e: L$ e" C& @ }+ s0 u& y8 l Z3 u$ x7 ] d
.login-title{ : h6 _3 h7 L$ i8 V: n/ A text-align:center; & W6 r# S" x3 j4 u/ K margin: 0 auto 40px auto;; s* S. J9 h2 T
color: #303133; 1 Q g' i+ _# A0 l: L) G# R } , Z9 w+ k6 _: S* T K: V: p</style> / x) r$ c0 Z) y. ?$ X1. z2 B* I7 L5 ]# T# s( T
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81 6 | [3 T" L' U/ d2 k. K. J$ s创建路由,在router目录下创建一个名为index.js的vue-router路由配置文件 ! K" h3 H2 ?3 F6 m8 O: K% a , Q* o; _; E1 f8 z: \3 E. K 1 k7 b; J9 |. l" h//导入vue $ a, r; ^$ ?! K, `import Vue from 'vue'; - k4 ?4 e9 L1 e% f* d* Rimport VueRouter from 'vue-router';1 s4 h) s; l% c+ @! h& J
//导入组件6 m% Q0 u1 E" {( m0 c
import Main from "../views/Main";: M v9 ]8 o6 n- a: f$ m- S" j
import Login from "../views/Login"; 3 w7 I8 K9 t* e, }( W, x6 G//使用 L! G$ ~9 t5 k3 z1 }- t: Q( qVue.use(VueRouter);4 a) H7 J" I' \4 d, n, Y9 [
//导出. z+ P0 P+ M; N# {
export default new VueRouter({ ) Z) l/ ^1 z# Q routes: [0 X* j; F4 t9 V- a( K+ o) T% p
{ ! Q! h4 L6 m( `+ V //登录页1 l% j8 z+ c0 P# D* L
path: '/main', 2 w" `7 b4 t* d2 F: t& Q, C( g component: Main0 i4 v+ h: J0 r4 @* \! @
}, 1 ?* K* A$ r$ d, ~% y6 v% o* x: d: c* d //首页 6 x0 f0 h3 m6 A* C {0 M5 ^ Z' u: A8 ?; i1 C
path: '/login',* C9 u! } `' R: h
component: Login U$ a% c0 q4 u7 E& `
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25 . F" W% c5 G r# X o3 aAPP.vue3 \' k8 `' v$ I! n8 E
# A" P. |! B% K; _/ s % R, Q& d7 u2 \& U4 T6 P* v1 Q<template>- m& r2 b! ] h0 g$ E* P
<div id="app">7 F5 w, u0 l( z; S3 V
<router-view></router-view> / [( f, Z7 C- p </div> 3 G2 ?/ `. A& d+ B; |1 }; r; I' D</template> ( T, c( H0 F8 T/ {: O; L \1 j6 G4 S) `' P. @' `
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<script> + \0 G4 ?! ^6 _4 x1 B6 J' m % D) R1 m) _9 T- I( f$ ?" g 6 z% S' t- w& [6 D4 ~ 1 e" ^1 b$ w# }' y9 m . y1 |! O5 t; w& [export default {9 X m5 n& j+ k
name: 'App', 7 L y+ P: Z2 |) ~; N1 c9 `% I- Z( s4 n8 o
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} " S/ Z9 r- q$ @6 J; u</script> ; N5 i0 B" b0 m, @' O0 j( p " U4 \0 {' B" W" s2 v* c6 _% B" O9 C% F3 ~: B
<style> j5 J% L; D* D( q#app {+ N' E0 b. i/ q' x6 y- L
font-family: 'Avenir', Helvetica, Arial, sans-serif; 7 c" v/ r6 X8 @; i Y- x -webkit-font-smoothing: antialiased; 5 a! z+ o9 T) ~7 h% H -moz-osx-font-smoothing: grayscale;2 k( w: R1 W! J
text-align: center; / q2 ~; |, b: H y& b8 l color: #2c3e50; 3 q5 R6 O, \2 F7 r% @. q, \" w margin-top: 60px;" M+ A% z" |& O
} 1 L- u w5 b# C( o' Q. t2 L</style> * n9 `+ G0 a9 I1. I9 r2 e4 V) }
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main.js% u* }$ Y Z9 X8 I# O5 J' I$ x1 Z
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1 v. R8 X% @9 \$ X/ ]3 [7 l; q// The Vue build version to load with the `import` command% _1 [1 ]$ {# w
// (runtime-only or standalone) has been set in webpack.base.conf with an alias.. ^3 | u4 g! d+ l
import Vue from 'vue' 5 V( q4 ]2 _3 Z6 g+ N. Timport App from './App' , l" o6 S& E' L& M2 w' S( V/ Himport router from "./router"* T& i9 q% [" Z6 n
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import ElementUI from 'element-ui' 6 |! b; U9 E9 @1 Jimport 'element-ui/lib/theme-chalk/index.css'0 K m% S' |( D- X0 T
# Q/ m( y3 Z: R& ?0 n7 n( @5 x% W - o, D# v: ]& V+ R/ B. o) O* OVue.use(router)" n; u/ e" o& `/ a
Vue.use(ElementUI) % q e5 {6 ?/ R& K* F 3 ?/ q s: g6 m; f E4 q/ ?' m: y5 M ) o, X# u! H' O, d7 P# F/* eslint-disable no-new */ ' R) x( F2 ?' K# Vnew Vue({ $ D: H- |5 W& n3 \2 ]& b' E el: '#app', + e+ _' J F5 X+ ~0 j! I router,4 m' i$ ~! b* x& V
render:h=>h(App), `/ [" y: ?3 L# n
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测试:在浏览器打开 http://localhost:8080/#/login 9 R, H6 j T. ^' V# {! i' y( B如果出现错误: 可能是因为sass-loader的版本过高导致的编译错误,当前最高版本是8.0.2,需要退回到7.3.1 ;7 R/ \+ ?# Z$ E" \
去package.json文件里面的 "sass-loader"的版本更换成7.3.1,然后重新cnpm install就可以了;7 d- f- F. H2 T
7 O C, i8 B: E- @* ] 0 Y X0 q( v! a1 M1 s2 H12.3、路由嵌套 5 N6 C% B2 @6 p+ I嵌套路由又称子路由,在实际应用中,通常由多层嵌套的组件组合而成。5 k* u( {' K: v6 M
demo7 f _8 d& {* h( _# X
1、 创建用户信息组件,在 views/user 目录下创建一个名为 Profile.vue 的视图组件;7 ? u- ^/ u( W3 u
Profile.vue : E7 p/ A+ X; X- V( ?: X3 o$ q$ e+ h' e; I$ N( `8 C$ O9 {( k% R1 [' [
: ]. Z- Z2 {: l# Q' n- C; T: ]
<template> % l0 Z- G+ a! K$ r9 I) R0 ` <h1>个人信息</h1>3 p9 O3 X$ K( d" K2 ]3 B* t# p
</template>. T: i0 | P m. `8 M$ S
<script> 1 H9 f( g+ Y* y% Y* y( ^4 x export default {- J d/ z. e6 B
name: "UserProfile" . z# Q) c+ @& C }: {7 m: ~" C p7 P: m
</script>' b2 d* c) A" w& N! p
<style scoped> # e" q5 t/ P2 q" d. x, n/ n$ K. M</style>" S/ p5 H7 y# J1 N' m
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2、在用户列表组件在 views/user 目录下创建一个名为 List.vue 的视图组件; 5 \) _+ q2 Y: Q3 oList.vue) l/ s& f( y0 T3 {
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<template>5 ]* M$ J- r4 Z& P$ c; ]7 A
<h1>用户列表</h1>* S. j2 H3 A: s3 [4 @% u
</template> $ z8 ^3 d/ e# }/ Q, ?, J4 x<script>; N' p1 _# U! q/ P8 I
export default {1 ?/ L& I% G* P+ \' U1 o
name: "UserList" % T3 H6 Y& L7 ^7 @1 W# @& f } $ y7 T2 R# _3 C4 B, M</script>5 q! v& n0 k) P% K* @4 c7 F/ ]" c
<style scoped> % ?. V" l {9 y/ Z</style>0 P9 F( b# p! d" h
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3、 修改首页视图,我们修改 Main.vue 视图组件,此处使用了 ElementUI 布局容器组件,代码如下: 5 i; z: {# Q" h8 |. ]7 P6 x; yMain.vue6 @/ S! f2 ^; b$ p/ ?9 H
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<template> " M0 @1 s& G2 T$ c" Z <div>& e0 H# x8 o, a) r$ {( B2 y* i
<el-container> + |/ m+ r. @' ^+ h2 K <el-aside width="200px"> 8 C2 S) G: @; I. o* v, L3 T <el-menu :default-openeds="['1']"> ) Z: F/ h+ i& j8 K- T <el-submenu index="1"> , j; K2 z& {5 O+ A, y <template slot="title"><i class="el-icon-caret-right"></i>用户管理</template> / B) f9 H4 e4 U0 z& ~# T [ <el-menu-item-group> / v+ \3 t1 R# c. r <el-menu-item index="1-1">7 P: x5 {& m, }8 }
<!--插入的地方-->' K4 x$ x( [" J1 M7 g2 o$ h
<router-link to="/user/profile">个人信息</router-link> % e: o* Z9 G% z( u4 ^* T @ </el-menu-item> ) P; ]9 b! u+ `" k# l5 u <el-menu-item index="1-2"> - |# Z- q2 r% B p <!--插入的地方--> , Q0 v- M: u) z2 W$ g+ v3 j& t <router-link to="/user/list">用户列表</router-link> 1 _. ?0 v& n& x+ v, j- e% G </el-menu-item> 2 @" m7 P8 l! B; K3 [ </el-menu-item-group> ' J: G* U( t$ t </el-submenu> 8 D$ |9 t; |* T( n+ O& Y <el-submenu index="2"># ]3 t# p2 @0 T5 j
<template slot="title"><i class="el-icon-caret-right"></i>内容管理</template>% V1 h. W+ M: ^3 g1 ?2 [6 _/ {
<el-menu-item-group>8 d8 j. R* j. f& { T
<el-menu-item index="2-1">分类管理</el-menu-item>9 g( I) Z$ i2 c) Y0 i$ B0 @
<el-menu-item index="2-2">内容列表</el-menu-item>- {* U/ C; a0 E& H
</el-menu-item-group>0 S6 q4 X2 [! i1 k9 P
</el-submenu> 1 e; s+ I; B! a </el-menu>" L( X" R! k9 a$ y5 b8 X
</el-aside> 6 t. i7 S, q* r & F( a! Z5 N6 w+ p: o) I9 N5 L, z! n8 X7 s5 _7 e3 \
<el-container> * s/ B [. i! F0 U1 \: x. M <el-header style="text-align: right; font-size: 12px"> 2 t- k$ R6 E% N8 i" h2 W <el-dropdown>3 I" Y, ^. j& O( J3 Q4 S1 a7 A3 K; G, r
<i class="el-icon-setting" style="margin-right: 15px"></i> # P% a) p5 l8 j <el-dropdown-menu slot="dropdown"> A$ w3 L/ ~+ U# a/ C
<el-dropdown-item>个人信息</el-dropdown-item>1 o9 C3 Q) l2 @7 w) h5 y
<el-dropdown-item>退出登录</el-dropdown-item> 2 j; I. z p6 b </el-dropdown-menu> + q+ s9 U& K( _% ?% {3 P& ] </el-dropdown> 0 A" a5 s3 T6 J8 i, K </el-header> + V; Y5 f; K3 M$ c: t, a s3 { <el-main>6 `% S: C2 ~/ Z
<!--在这里展示视图--> 4 H/ C3 v2 K1 }$ W+ _( n' d+ K <router-view />2 N; X" o, @2 s! c
</el-main>6 Q+ ]3 b# U: r
</el-container> % K9 g8 L. k! N* Q a" H5 N </el-container> " Z; |1 J6 F3 _% {- g </div> , x* |5 o8 J- Y9 z, c</template> . g) g+ S) B/ @* T& T8 F9 H& X<script> , ^( J. c2 b+ o- f8 m export default { 5 n/ c! y* p% k! F& | name: "Main"5 D5 |$ B5 w* r+ R+ M- h
} . `7 | R2 Q' {, f+ A4 j% w</script> ; P$ F, U) {% |: O8 X9 c' I6 s$ b<style scoped lang="scss">! J% ^; ~+ {0 o
.el-header {6 T4 Q3 k5 E4 y2 {
background-color: #B3C0D1; ( P! J$ V/ c: b" y7 Q- ^ color: #333;8 h- {: Y$ S% |' Z' h9 F8 |
line-height: 60px; 9 n9 P6 _! M0 a2 Q6 h) { }7 Q* ?% H0 c/ M/ B$ S, f
.el-aside {& C: _7 E6 b- Q
color: #333; 1 a: v7 i( I2 ?% c2 {8 g: ^ }3 ^5 z; J( Q) Y! K9 r+ ?
</style> 6 N& a0 {2 j8 I) v15 F1 K8 w. @8 _8 A
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4、 配置嵌套路由修改 router 目录下的 index.js 路由配置文件,使用children放入main中写入子模块,代码如下 8 @& k, W' a& ^! }% v J! kindex.js 8 V* o2 D C; X( k/ L- z K$ U. K- x+ ^3 C! M: M: P0 P
9 G9 j& C$ T1 O: m, E, j& R//导入vue . q1 H' x9 E4 e& c, R$ himport Vue from 'vue';. i4 A) }0 f( V
import VueRouter from 'vue-router';- T j8 S! `, Z! x4 S
//导入组件) R. `3 p6 A- @ z
import Main from "../views/Main";2 h3 v5 X9 U- Z& A
import Login from "../views/Login"; 4 r# {- e! H9 p! Y; A2 S//导入子模块1 b: |0 G: {4 W$ L
import UserList from "../views/user/List";$ R, p3 M9 F* [; R5 w
import UserProfile from "../views/user/Profile"; ' N5 |6 w5 `3 r: v" ], \& `2 A8 o/ P4 R$ }. T& e
. [, ]2 T0 r/ B1 t
//使用 ; g r3 K( E. YVue.use(VueRouter);6 a$ y8 U' G( H
//导出 + g4 k" v N n0 S9 F! N2 kexport default new VueRouter({/ G; g, z3 m9 B) A
routes: [ : r& ^: N1 A0 k. s# Q { . u- y$ v5 q- c) t5 h8 `5 Q( ] //登录页0 E/ a' I" T, ~8 f* m& X4 G8 U
path: '/main', # {) K$ N3 X& N4 _ component: Main, " z; D: i! K' o& Q5 s( p4 @/ T4 T // 写入子模块. i5 k3 Q, k) {+ U# s
children: [- P5 \, O" R$ {: X0 Z7 W+ S+ `
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path: '/user/profile', 3 e5 H3 r- @" o; E5 D" b. P component: UserProfile,. J% k8 l! c7 i7 C8 i H2 z
}, { 2 v, _* a. f6 I5 h path: '/user/list', 8 j2 Y' k$ C) _. g+ _( c9 ?4 Z component: UserList,6 q2 k" I6 `9 c; a$ D1 T" N' I
}, E: v7 I3 [% w6 ~% U2 D. E
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}, + Y" p0 U& E5 Q" a1 ?) B- E //首页2 r4 n* e7 R# N* O3 F
{ 1 m. i" o! w/ _5 X* c, W" e path: '/login',4 [7 L' s& E0 _% u9 }3 @
component: Login* o# G6 B& {1 k+ e; a _; f
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] 8 c6 I) {4 U: w" L5 B, U})% @. q* o+ C f) Y' {# r: `/ W5 y
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5、 路由嵌套实战效果图 u0 C, _9 f6 J, ~