Spigot Minecraft插件编码NoClassDefFound错误mysql

Question

启动服务器时出现此错误： 我正在使用IntelliJ Idea，并将MySQL jar添加到src和项目模块中。

Error pastebin

这是我的代码

if (
(strpos ($mail, '@') !== false) && 
(strpos ($mail, '@') == strrchr($mail, '@')) && 
(strripos($mail, ".") > strpos ($mail, '@'))
)
{return true;}

// explication:
//
// (strpos ($mail, '@') !== false) => '@' character is in the string
// (strpos ($mail, '@') == strrchr($mail, '@')) => '@' character is unique
// (strripos($mail, ".") > strpos ($mail, '@')) => last position of '.' character is      
// greater than '@' character position 

Answer 1

似乎您缺少某些依赖项，请确保将它们作为非插件存在于plugins文件夹中，或确保其已加载在类路径中。