The last packet successfully received from the server was 290 milliseconds a

报错信息"The last packet successfully received from the server was 290 milliseconds a"通常是由于与MySQL服务器的连接超时引起的。根据引用和引用的建议，您可以尝试修改MySQL的配置，将"useSSL"参数的值改为false，即"useSSL=false"。此外，您还可以在spring数据源配置中增加"connectTimeout"参数，并将其值适当增大。这样可以增加与MySQL服务器建立连接的超时时间，以确保成功接收到服务器的最后一个数据包。您可以参考引用中的示例配置来进行修改。修改完成后，重新启动Java项目，应该能够解决该报错。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
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