【问题解决】 java.lang.NoSuchMethodError: org.springframework.util.ObjectUtils.unwrapOptional(Ljava/lang/O

java.lang.NoSuchMethodError: org.springframework.util.ObjectUtils.unwrapOptional(Ljava/lang/Object;)Ljava/lang/Object;    at org.springframework.validation.DataBinder.<init>(DataBinder.java:179)    at org.springframework.boot.bind.RelaxedDataBinder.<init>(RelaxedDataBinder.java:83)    at org.springframework.boot.yaml.SpringProfileDocumentMatcher.extractSpringProfiles(SpringProfileDocumentMatcher.java:92)    at org.springframework.boot.yaml.SpringProfileDocumentMatcher.matches(SpringProfileDocumentMatcher.java:71)    at org.springframework.beans.factory.config.YamlProcessor.process(YamlProcessor.java:235)    at org.springframework.beans.factory.config.YamlProcessor.process(YamlProcessor.java:161)    at org.springframework.beans.factory.config.YamlProcessor.process(YamlProcessor.java:138)    at org.springframework.boot.env.YamlPropertySourceLoader$Processor.process(YamlPropertySourceLoader.java:101)    at org.springframework.boot.env.YamlPropertySourceLoader.load(YamlPropertySourceLoader.java:58)    at org.springframework.boot.env.PropertySourcesLoader.load(PropertySourcesLoader.java:127)    at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.doLoadIntoGroup(ConfigFileApplicationListener.java:479)    at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.loadIntoGroup(ConfigFileApplicationListener.java:462)    at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.load(ConfigFileApplicationListener.java:454)    at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.load(ConfigFileApplicationListener.java:375)    at org.springframework.boot.context.config.ConfigFileApplicationListener.addPropertySources(ConfigFileApplicationListener.java:214)    at org.springframework.boot.context.config.ConfigFileApplicationListener.postProcessEnvironment(ConfigFileApplicationListener.java:184)    at org.springframework.boot.context.config.ConfigFileApplicationListener.onApplicationEnvironmentPreparedEvent(ConfigFileApplicationListener.java:171)    at org.springframework.boot.context.config.ConfigFileApplicationListener.onApplicationEvent(ConfigFileApplicationListener.java:157)    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:73)    at org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:54)    at org.springframework.boot.SpringApplication.prepareEnvironment(SpringApplication.java:336)    at org.springframework.boot.SpringApplication.run(SpringApplication.java:307)    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1162)    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1151)    at com.weixin.SpringApplicationMain.main(SpringApplicationMain.java:12)

原因 jar 包版本冲突

 <!-- https://mvnrepository.com/artifact/org.springframework/spring-context -->        <dependency>            <groupId>org.springframework</groupId>            <artifactId>spring-context</artifactId>            <version>5.0.2.RELEASE</version>        </dependency>

换成

    <!-- https://mvnrepository.com/artifact/org.springframework/spring-context -->        <dependency>            <groupId>org.springframework</groupId>            <artifactId>spring-context</artifactId>            <version>4.3.12.RELEASE</version>        </dependency>