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DBAppender cannot function if the JDBC driver does not support getGeneratedKeys method *and* without a specific SQL dialect 运行报错：Connected to the target VM, address: '127.0.0.1:57417', transport: 'socket' 2021-11-15 05:28:01.897 [restartedMain] - [ERROR] [ org.springframework.boot.SpringApplication : 826 ] - Application run failed java.lang.IllegalStateException: Logback configuration error detected: ERROR in ch.qos.logback.core.joran.spi.Interpreter@32:16 - RuntimeException in Action for tag [appender] java.lang.IllegalStateException: DBAppender cannot function if the JDBC driver does not support getGeneratedKeys method *and* without a specific SQL dialect at org.springframework.boot.logging.logback.LogbackLoggingSystem.loadConfiguration(LogbackLoggingSystem.java:169) at org.springframework.boot.logging.AbstractLoggingSystem.initializeWithConventions(AbstractLoggingSystem.java:80) at org.springframework.boot.logging.AbstractLoggingSystem.initialize(AbstractLoggingSystem.java:60) at org.springframework.boot.logging.logback.LogbackLoggingSystem.initialize(LogbackLoggingSystem.java:118) at org.springframework.boot.context.logging.LoggingApplicationListener.initializeSystem(LoggingApplicationListener.java:313) at org.springframework.boot.context.logging.LoggingApplicationListener.initialize(LoggingApplicationListener.java:288) at org.springframework.boot.context.logging.LoggingApplicationListener.onApplicationEnvironmentPreparedEvent(LoggingApplicationListener.java:246) at org.springframework.boot.context.logging.LoggingApplicationListener.onApplicationEvent(LoggingApplicationListener.java:223) at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172) at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165) at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139) at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:127) at org.springframework.boot.context.event.EventPublishingRunListener.environmentPrepared(EventPublishingRunListener.java:76) at org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:53) at org.springframework.boot.SpringApplication.prepareEnvironment(SpringApplication.java:345) at org.springframework.boot.SpringApplication.run(SpringApplication.java:308) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215) at com.xx.Application.main(Application.java:32) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:483) at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) Exception in thread "Main" java.lang.reflect.InvocationTargetException at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:483) at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) Caused by: java.lang.IllegalStateException: Logback configuration error detected: ERROR in ch.qos.logback.core.joran.spi.Interpreter@32:16 - RuntimeException in Action for tag [appender] java.lang.IllegalStateException: DBAppender cannot function if the JDBC driver does not support getGeneratedKeys method *and* without a specific SQL dialect at org.springframework.boot.logging.logback.LogbackLoggingSystem.loadConfiguration(LogbackLoggingSystem.java:169) at org.springframework.boot.logging.AbstractLoggingSystem.initializeWithConventions(AbstractLoggingSystem.java:80) at org.springframework.boot.logging.AbstractLoggingSystem.initialize(AbstractLoggingSystem.java:60) at org.springframework.boot.logging.logback.LogbackLoggingSystem.initialize(LogbackLoggingSystem.java:118) at org.springframework.boot.context.logging.LoggingApplicationListener.initializeSystem(LoggingApplicationListener.java:313) at org.springframework.boot.context.logging.LoggingApplicationListener.initialize(LoggingApplicationListener.java:288) at org.springframework.boot.context.logging.LoggingApplicationListener.onApplicationEnvironmentPreparedEvent(LoggingApplicationListener.java:246) at org.springframework.boot.context.logging.LoggingApplicationListener.onApplicationEvent(LoggingApplicationListener.java:223) at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172) at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165) at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139) at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:127) at org.springframework.boot.context.event.EventPublishingRunListener.environmentPrepared(EventPublishingRunListener.java:76) at org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:53) at org.springframework.boot.SpringApplication.prepareEnvironment(SpringApplication.java:345) at org.springframework.boot.SpringApplication.run(SpringApplication.java:308) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215) at com.xx.Application.main(Application.java:32) ... 5 more Disconnected from the target VM, address: '127.0.0.1:57417', transport: 'socket' Process finished with exit code 0 1.检查日志数据库连接配置2.修改数据库用户连接加密方式mysql8.0.26版本创建用户默认以 caching_sha2_password 方式加密密码caching_sha2_password 改为 mysql_native_password -
SpringBoot读取配置文件，赋值给静态变量 SpringBoot读取配置文件，赋值给静态变量方法一：xml通过bean注入{lamp/}方法二：使用set方法注入1、配置文件2、赋值静态变量—注意set函数的写法@Component @PropertySource({"classpath:port.properties"}) public class IpPortConfig { public static String ip; public static int port; public static int reStart; @Value("${demo.ip}") public void setIp(String ip) { this.ip = ip; } @Value("${demo.port}") public void setPort(int port) { this.port = port; } @Value("${demo.reStart}") public void setReStart(int reStart) { this.reStart = reStart; } }3.属性名和set方法名不必一致方法三：通过中间变量赋值import javax.annotation.PostConstruct; import org.springframework.beans.factory.annotation.Value; import org.springframework.stereotype.Component; @Component public class Test { public static String url = "/dev/xx"; @Value("${url}") public String tempUrl = "/dev/xx"; @PostConstruct public void init() { url = tempUrl; } }{card-describe title="1.@PostConstruct说明"}被@PostConstruct修饰的方法会在服务器加载Servlet的时候运行，并且只会被服务器调用一次，类似于Serclet的inti()方法。被@PostConstruct修饰的方法会在构造函数之后，init()方法之前运行。{/card-describe}{card-describe title="2.@PreConstruct说明"}被@PreConstruct修饰的方法会在服务器卸载Servlet的时候运行，并且只会被服务器调用一次，类似于Servlet的destroy()方法。被@PreConstruct修饰的方法会在destroy()方法之后运行，在Servlet被彻底卸载之前。（详见下面的程序实践）{/card-describe}
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maven出现：Failed to execute goal on project ...: Could not resolve dependencies for project ... 1、我的项目结构是一个父项目，多个子项目目录如下：2、我这里就举个例子，所以应用的也就是core和domain这两个项目。3、两个项目都继承父项目4、在模块中domain依赖于core，在core中执行完clean和install之后，本地仓库也存在依赖，但是在domain中进行install就会出现Failed to execute goal on project ...: Could not resolve dependencies for project ... 这样的错误，最后发现原来是自己没有首先对父项目也就是interface-test项目进行clean和install ，5、总结、在父项目下有的子项目在首次运行clean 和install前应该先运行父项目的clean和install.直接对父项目打包，即可完成所有子项目打包
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