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application.properties文件配置两个数据源信息，yaml文件自行修改格式。

一.The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server异常信息：二.No appropriate protocol (protocol is disabled or cipher suites are inappropriate)异常信息Caused by: javax.net.ss.

CORS 简介为了解决浏览器同源问题，W3C提出了跨源资源共享，即CORS(Cross-Origin Resource Sharing)。CORS做到了如下两点：不破坏即有规则 服务器实现了CORS接口，就可以跨源通信Access-Control-Allow-Origin: http://www.examples.comAccess-Control-Allow-Methods: GET, POST, PUT, DELETEAccess-Control-Allow-Head...

1：配置testWhileIdle和validationInterval属性# 从池中借出对象之前，是否对其进行验证spring.datasource.test-on-borrow=true# 在该时间内被验证过的连接不会被重复验证spring.datasource.validation-interval=1500002：修改minIdle=0解决方案只针对tomcat jdbc pool...

创建线程安全的RestTemplate单例（懒汉模式）@Component@Lazy(false)public class SimpleRestClient { private static final Logger LOGGER = LoggerFactory.getLogger(SimpleRestClient.class); private static RestTemplate restTemplate; static { SimpleClie

@Configurationpublic class JacksonConfig { /** 默认日期时间格式 */ public static final String DEFAULT_DATE_TIME_FORMAT = "yyyy-MM-dd HH:mm:ss"; /** 默认日期格式 */ public static final String DEFAULT_DATE_FORMAT = "yyyy-MM-dd"; /** 默认时间格式 */ pu.

@RestControllerAdvicepublic class ApiExceptionHandler { private static Logger log = LoggerFactory.getLogger(ApiExceptionHandler.class); // 对表单验证时抛出的 MethodArgumentNotValidException 异常做统一处理 @ExceptionHandler(MethodArgumentNotValidException.c.

增加Maven 依赖 <dependency> <groupId>com.baomidou</groupId> <artifactId>mybatis-plus-generator</artifactId> <version>3.3.2</version> </dependency>

增加Maven 依赖<dependency> <groupId>io.springfox</groupId> <artifactId>springfox-swagger2</artifactId> <version>2.8.0</version> </dependency> <depende