SpringBoot启动报错 java.lang.NoClassDefFoundError: javax/validation/ValidationException
在做Springboot项目时,环境搭建启动正常,但是过了几天之后再启动就报些莫名奇妙的错误,网上百度了一大推,都不能解决问题,最后发现是自己的maven仓库环境缺了些配置,重新配置maven的settings文件,在编译启动就正常了。
修改后的settings.xml
<?xml version="1.0" encoding="UTF-8"?> <settings xmlns="http://maven.apache.org/SETTINGS/1.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0 http://maven.apache.org/xsd/settings-1.0.0.xsd"> <localRepository>D:\Program Files\repository</localRepository> <pluginGroups> </pluginGroups> <proxies> </proxies> <mirrors> <mirror> <id>alimaven</id> <name>aliyun maven</name> <url>http://maven.aliyun.com/nexus/content/groups/public/</url> <mirrorOf>central</mirrorOf> </mirror> <mirror> <id>central</id> <name>Maven Repository Switchboard</name> <url>http://repo1.maven.org/maven2/</url> <mirrorOf>central</mirrorOf> </mirror> <mirror> <id>repo2</id> <mirrorOf>central</mirrorOf> <name>Human Readable Name for this Mirror.</name> <url>http://repo2.maven.org/maven2/</url> </mirror> <mirror> <id>ibiblio</id> <mirrorOf>central</mirrorOf> <name>Human Readable Name for this Mirror.</name> <url>http://mirrors.ibiblio.org/pub/mirrors/maven2/</url> </mirror> <mirror> <id>jboss-public-repository-group</id> <mirrorOf>central</mirrorOf> <name>JBoss Public Repository Group</name> <url>http://repository.jboss.org/nexus/content/groups/public</url> </mirror> <!-- 中央仓库在中国的镜像 --> <mirror> <id>maven.net.cn</id> <name>oneof the central mirrors in china</name> <url>http://maven.net.cn/content/groups/public/</url> <mirrorOf>central</mirrorOf> </mirror> </mirrors> <profiles> <profile> <id>jdk-1.8</id> <activation> <activeByDefault>true</activeByDefault> <jdk>1.8</jdk> </activation> <properties> <maven.compiler.source>1.8</maven.compiler.source> <maven.compiler.target>1.8</maven.compiler.target> <maven.compiler.compilerVersion>1.8</maven.compiler.compilerVersion> </properties> </profile> </profiles> <!-- <activeProfiles> <activeProfile>dev</activeProfile> </activeProfiles> --> </settings>
最后在pom.xml文件中添加以下插件(结合个人项目看是否添加)
<plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-resources-plugin</artifactId> <version>2.7</version> <dependencies> <dependency> <groupId>org.apache.maven.shared</groupId> <artifactId>maven-filtering</artifactId> <version>1.3</version> </dependency> </dependencies> </plugin>
总结:maven环境一定要配好,要不然以后做项目会报一些奇怪的问题。