utf8mb4 编码是 utf8 编码的超集，兼容 utf8，并且能存储 4 字节的表情字符。采用 utf8mb4 编码的好处是：存储与获取数据的时候，不用再考虑表情字符的编码与解码问题。 1. MySQL的版本 utf8mb4的最低mysql版本支持版本为5.5.3+，若不是，请升级到较新版本。 2. MySQL驱动 5.1.34可用，最低不能低于5.1.13 ...

文章 2022-02-16 来自：开发者社区

更改MySQL数据库的编码为utf8mb4

CREATE DATABASE `test` DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci ; mysql> create database daily default character set utf8mb4 collate utf8mb4_unicode_ci; 原文：http://blog.csdn.net...

问答 2022-02-15 来自：开发者社区

发送表情tomcat报错，请问怎么解决？数据库编码已经改为utf8mb4，连接字?报错

错误信息如下： 2016-06-20 10:43:55,294 ERROR com.bsteel.vs.webapp.controller.BaseController:181 - org.springframework.jdbc.UncategorizedSQLException: PreparedStatementCallback; uncategorized SQLExcepti...

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