求助各位大佬指导：数据库修改为mysql后，显示连接错误
以下是配置o2server/config/externalDataSources.json的信息[
{
"enable": false,
"url": "jdbc:mysql://127.0.0.1:3306/X?autoReconnect\u003dtrue\u0026allowPublicKeyRetrieval\u003dtrue\u0026useSSL\u003dfalse\u0026useUnicode\u003dtrue\u0026characterEncoding\u003dUTF-8\u0026useLegacyDatetimeCode\u003dfalse\u0026serverTimezone\u003dGMT%2B8",
"username": "root",
"password": "xtw123456+",
"driverClassName": "",
"dictionary": "",
"maxTotal": 100.0,
"maxIdle": 0.0,
"statEnable": true,
"statFilter": "mergeStat",
"includes": [],
"excludes": [],
"logLevel": "ERROR",
"transactionIsolation": "read-committed",
"testConnectionOnCheckin": false,
"testConnectionOnCheckout": false,
"maxIdleTime": 300.0,
"autoCommit": false,
"schema": "X",
"logStatEnable": false,
"logStatInterval": 180.0,
"slowSqlEnable": true,
"slowSqlThreshold": 3000.0,
"###enable": "是否启用,如果启用多个数据库,那么必须是相同类型的,不能混用,且用户名密码必须一致.###",
"###url": "jdbc连接地址.###",
"###username": "数据库jdbc连接用户名.###",
"###password": "数据库jdbc连接密码.###",
"###driverClassName": "数据库驱动类名.###",
"###dictionary": "方言类.###",
"###maxTotal": "最大使用连接数.###",
"###maxIdle": "最大空闲连接数.###",
"###statEnable": "启用统计,默认启用.###",
"###statFilter": "统计方式配置,默认mergeStat.###",
"###includes": "设置此数据库存储的类,默认情况下存储所有类型,如果需要对每个类进行单独的控制以达到高性能,可以将不同的类存储到不同的节点上提高性能.可以使用通配符*.###",
"###excludes": "在此节点上不存储的类,和includes一起设置实际存储的类,可以使用通配符*.###",
"###logLevel": "默认日志级别,FATAL, ERROR, WARN, INFO, TRACE. 完整的配置为DefaultLevel\u003dWARN, Tool\u003dTRACE, Enhance\u003dTRACE, METADATA\u003dTRACE, Runtime\u003dTRACE, Query\u003dTRACE, DataCache\u003dTRACE, JDBC\u003dTRACE, SQL\u003dTRACE.###",
"###transactionIsolation": "事务隔离级别:default,none,read-uncommitted,read-committed,repeatable-read,serializable.默认使用default(数据库设置的事务级别).###",
"###testConnectionOnCheckin": "测试入池连接,默认false.###",
"###testConnectionOnCheckout": "测试出池连接,默认false.###",
"###maxIdleTime": "空闲阈值,默认300秒.###",
"###autoCommit": "自动提交,默认为false.###",
"###schema": "模式.###",
"###logStatEnable": "启用记录统计日志.###",
"###logStatInterval": "统计日志输出间隔,单位分钟,默认180.###",
"###slowSqlEnable": "是否启用执行慢sql记录.###",
"###slowSqlThreshold": "执行慢sql记录阈值,毫秒数,默认3000毫秒.###",
"###extension": "扩展设置.###"
}
]
这个是个样例吧，您要改成您自己的mysql数据库地址
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