Mybatis Plus java.lang.NoSuchMethodError: com.baomidou.mybatisplus.core.toolkit.StringUtils.isNotBlank(Ljava/lang

问题描述

在进行SpringBoot 整合Mybatis Plus 时提示

10:49:08.390 [restartedMain] DEBUG org.springframework.boot.context.logging.ClasspathLoggingApplicationListener - Application failed to start with classpath: [file:/D:/%e7%99%be%e5%ba%a6%e7%bd%91%e7%9b%98/VueTest/vuetest2/xiaohoubuke/target/classes/]
10:49:08.393 [restartedMain] ERROR org.springframework.boot.SpringApplication - Application run failed
java.lang.NoSuchMethodError: com.baomidou.mybatisplus.core.toolkit.StringUtils.isNotBlank(Ljava/lang/CharSequence;)Z
    at com.baomidou.mybatisplus.autoconfigure.SafetyEncryptProcessor.postProcessEnvironment(SafetyEncryptProcessor.java:55)
    at org.springframework.boot.context.config.ConfigFileApplicationListener.onApplicationEnvironmentPreparedEvent(ConfigFileApplicationListener.java:203)
    at org.springframework.boot.context.config.ConfigFileApplicationListener.onApplicationEvent(ConfigFileApplicationListener.java:191)
    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:80)
    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:1237)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226)
    at com.xiaohou.XiaohoubukeApplication.main(XiaohoubukeApplication.java:10)
    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:498)
    at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49)

解决过程

仔细排查了 Mybatis Plus 依赖，发现父工程的版本是 

<dependency>
    <groupId>com.baomidou</groupId>
    <artifactId>mybatis-plus-boot-starter</artifactId>
    <version>3.4.1</version>
</dependency>

子模块却引入了其他版本的 相关依赖

        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-core</artifactId>
            <version>3.5.3</version>
            <scope>compile</scope>
        </dependency>

修正一下版本正常了。