vue中不同情况下如何进行通讯
本篇内容介绍了“vue中不同情况下如何进行通讯”的有关知识,在实际案例的操作过程中,不少人都会遇到这样的困境,接下来就让小编带领大家学习一下如何处理这些情况吧!希望大家仔细阅读,能够学有所成!
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同窗口(也就是同浏览器同一个页签内) 同浏览器同页签内主要涉及的就是父子组件的传值。
vuex:状态管理器:适用一个项目里的任何组件,包容性极强 对于状态管理器的概念大家应该也不会陌生。
provide / inject (写法基于v2.2.1及以上版本):适用N级组件,但是必须是单线传承的那种 这对选项需要一起使用,以允许一个祖先组件向其所有子孙后代注入一个依赖,不论组件层次有多深,并在其上下游关系成立的时间里始终生效。
// parent.vue
// 此处忽略template模板的东西
// child.vue
// 此处忽略template模板的东西
props:适用相邻两组件的传值(父->子);$emit: 子 -> 父 正经的props/$emit可太常见了,都是用烂了的,就不用写示例代码了吧。
eventBus: 地位与vuex差不多,适用任意组件,包容性极强 问题:
// utils/eventBus.js
import Vue from 'vue'
const EventBus = new Vue()
export default EventBus // main.js
// 进行全局挂载
import eventBus from '@/utils/eventBus'
Vue.prototype.$eventBos = eventBus // views/parent.vue
测试
基本
文件
流程
错误
SQL
调试
请求信息 : 2026-05-27 02:35:54 HTTP/1.1 GET : /article/pepsso.html 运行时间 : 4.1565s ( Load:0.0066s Init:3.4735s Exec:0.6671s Template:0.0092s ) 吞吐率 : 0.24req/s 内存开销 : 2,247.52 kb 查询信息 : 12 queries 5 writes 文件加载 : 36 缓存信息 : 0 gets 0 writes 配置加载 : 130 会话信息 : SESSION_ID=pmrt9vuntac7f4r9lfasoqt095
/www/wwwroot/tsicrk.com/index.php ( 1.09 KB ) /www/wwwroot/tsicrk.com/ThinkPHP/ThinkPHP.php ( 4.61 KB ) /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Think.class.php ( 12.26 KB ) /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Storage.class.php ( 1.37 KB ) /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Storage/Driver/File.class.php ( 3.52 KB ) /www/wwwroot/tsicrk.com/ThinkPHP/Mode/common.php ( 2.82 KB ) /www/wwwroot/tsicrk.com/ThinkPHP/Common/functions.php ( 53.56 KB ) /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Hook.class.php ( 4.01 KB ) /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/App.class.php ( 13.49 KB ) /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Dispatcher.class.php ( 14.79 KB ) /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Route.class.php ( 13.36 KB ) /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Controller.class.php ( 11.23 KB ) /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/View.class.php ( 7.59 KB ) /www/wwwroot/tsicrk.com/ThinkPHP/Library/Behavior/BuildLiteBehavior.class.php ( 3.68 KB ) /www/wwwroot/tsicrk.com/ThinkPHP/Library/Behavior/ParseTemplateBehavior.class.php ( 3.88 KB ) /www/wwwroot/tsicrk.com/ThinkPHP/Library/Behavior/ContentReplaceBehavior.class.php ( 1.91 KB ) /www/wwwroot/tsicrk.com/ThinkPHP/Conf/convention.php ( 11.15 KB ) /www/wwwroot/tsicrk.com/App/Common/Conf/config.php ( 2.14 KB ) /www/wwwroot/tsicrk.com/ThinkPHP/Lang/zh-cn.php ( 2.55 KB ) /www/wwwroot/tsicrk.com/ThinkPHP/Conf/debug.php ( 1.49 KB ) /www/wwwroot/tsicrk.com/App/Home/Conf/config.php ( 0.31 KB ) /www/wwwroot/tsicrk.com/App/Home/Common/function.php ( 3.33 KB ) /www/wwwroot/tsicrk.com/ThinkPHP/Library/Behavior/ReadHtmlCacheBehavior.class.php ( 5.62 KB ) /www/wwwroot/tsicrk.com/App/Home/Controller/ArticleController.class.php ( 6.02 KB ) /www/wwwroot/tsicrk.com/App/Home/Controller/CommController.class.php ( 1.60 KB ) /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Model.class.php ( 60.11 KB ) /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Db.class.php ( 32.43 KB ) /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Db/Driver/Pdo.class.php ( 16.74 KB ) /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Cache.class.php ( 3.83 KB ) /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Cache/Driver/File.class.php ( 5.87 KB ) /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Template.class.php ( 28.16 KB ) /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Template/TagLib/Cx.class.php ( 22.40 KB ) /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Template/TagLib.class.php ( 9.16 KB ) /www/wwwroot/tsicrk.com/App/Runtime/Cache/Home/7540f392f42b28b481b30614275e4e55.php ( 17.71 KB ) /www/wwwroot/tsicrk.com/ThinkPHP/Library/Behavior/WriteHtmlCacheBehavior.class.php ( 0.97 KB ) /www/wwwroot/tsicrk.com/ThinkPHP/Library/Behavior/ShowPageTraceBehavior.class.php ( 5.24 KB )
[ app_init ] --START-- Run Behavior\BuildLiteBehavior [ RunTime:0.000005s ] [ app_init ] --END-- [ RunTime:0.000028s ] [ app_begin ] --START-- Run Behavior\ReadHtmlCacheBehavior [ RunTime:0.000330s ] [ app_begin ] --END-- [ RunTime:0.000354s ] [ view_parse ] --START-- [ template_filter ] --START-- Run Behavior\ContentReplaceBehavior [ RunTime:0.000057s ] [ template_filter ] --END-- [ RunTime:0.000078s ] Run Behavior\ParseTemplateBehavior [ RunTime:0.006344s ] [ view_parse ] --END-- [ RunTime:0.006368s ] [ view_filter ] --START-- Run Behavior\WriteHtmlCacheBehavior [ RunTime:0.000162s ] [ view_filter ] --END-- [ RunTime:0.000176s ] [ app_end ] --START--
1064:You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ') LIMIT 1' at line 1
[ SQL语句 ] : SELECT `id`,`pid`,`navname` FROM `cx_nav` WHERE ( id= ) LIMIT 1 1064:You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ') LIMIT 1' at line 1
[ SQL语句 ] : SELECT `id`,`navname` FROM `cx_nav` WHERE ( id= ) LIMIT 1 1064:You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ')' at line 1
[ SQL语句 ] : SELECT `id`,`navname` FROM `cx_nav` WHERE ( pid= ) [8] Undefined index: pid /www/wwwroot/tsicrk.com/App/Home/Controller/ArticleController.class.php 第 47 行. [8] Undefined index: db_host /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Db.class.php 第 120 行. [8] Undefined index: db_port /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Db.class.php 第 121 行. [8] Undefined index: db_name /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Db.class.php 第 122 行.
4.1565s