尝试着做一个SpringBoot+Mybatis+MySQL的demo，用Mybatis Generator自动生成的model、mapper、dao代码，然而运行Application主类报错。
2021-01-26 15:10:08.117  INFO 3736 --- [           main] com.example.demo1.Demo1Application       : Starting Demo1Application using Java 1.8.0_131 on LAPTOP-8TL1TF0R with PID 3736 (E:\WorkSpace\demo1\target\classes started by Tiancheng in E:\WorkSpace\demo1)
2021-01-26 15:10:08.117  INFO 3736 --- [           main] com.example.demo1.Demo1Application       : No active profile set, falling back to default profiles: default
2021-01-26 15:10:08.450 ERROR 3736 --- [           main] o.s.boot.SpringApplication               : Application run failed

java.lang.NoClassDefFoundError: org/springframework/boot/bind/RelaxedPropertyResolver
	at org.springframework.boot.autoconfigure.AutoConfigurationImportSelector.getExcludeAutoConfigurationsProperty(AutoConfigurationImportSelector.java:215) ~[spring-boot-autoconfigure-1.5.10.RELEASE.jar:1.5.10.RELEASE]
	at org.springframework.boot.autoconfigure.AutoConfigurationImportSelector.getExclusions(AutoConfigurationImportSelector.java:209) ~[spring-boot-autoconfigure-1.5.10.RELEASE.jar:1.5.10.RELEASE]
	at org.springframework.boot.autoconfigure.AutoConfigurationImportSelector.selectImports(AutoConfigurationImportSelector.java:99) ~[spring-boot-autoconfigure-1.5.10.RELEASE.jar:1.5.10.RELEASE]
	at org.springframework.context.annotation.ConfigurationClassParser$DefaultDeferredImportSelectorGroup.process(ConfigurationClassParser.java:904) ~[spring-context-5.3.1.jar:5.3.1]
	at org.springframework.context.annotation.ConfigurationClassParser$DeferredImportSelectorGrouping.getImports(ConfigurationClassParser.java:879) ~[spring-context-5.3.1.jar:5.3.1]
	at org.springframework.context.annotation.ConfigurationClassParser$DeferredImportSelectorGroupingHandler.processGroupImports(ConfigurationClassParser.java:809) ~[spring-context-5.3.1.jar:5.3.1]
	at org.springframework.context.annotation.ConfigurationClassParser$DeferredImportSelectorHandler.process(ConfigurationClassParser.java:780) ~[spring-context-5.3.1.jar:5.3.1]
	at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:193) ~[spring-context-5.3.1.jar:5.3.1]
	at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:336) ~[spring-context-5.3.1.jar:5.3.1]
	at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:252) ~[spring-context-5.3.1.jar:5.3.1]
	at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:285) ~[spring-context-5.3.1.jar:5.3.1]
	at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:99) ~[spring-context-5.3.1.jar:5.3.1]
	at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:751) ~[spring-context-5.3.1.jar:5.3.1]
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:569) ~[spring-context-5.3.1.jar:5.3.1]
	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:144) ~[spring-boot-2.4.0.jar:2.4.0]
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:767) [spring-boot-2.4.0.jar:2.4.0]
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759) [spring-boot-2.4.0.jar:2.4.0]
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:426) [spring-boot-2.4.0.jar:2.4.0]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:326) [spring-boot-2.4.0.jar:2.4.0]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1309) [spring-boot-2.4.0.jar:2.4.0]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1298) [spring-boot-2.4.0.jar:2.4.0]
	at com.example.demo1.Demo1Application.main(Demo1Application.java:11) [classes/:na]
Caused by: java.lang.ClassNotFoundException: org.springframework.boot.bind.RelaxedPropertyResolver
	at java.net.URLClassLoader.findClass(URLClassLoader.java:381) ~[na:1.8.0_131]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_131]
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335) ~[na:1.8.0_131]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_131]
	... 22 common frames omitted


Process finished with exit code 1
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主动发图文信息能发给具体的某用户吗
