1.看看你得链接得数据库是什么版本得
2.看看你得数据库连接池是什么
3.url=jdbc:mysql://localhost:3306/pro?serverTimezone=GMT%2B8&zeroDateTimeBehavior=CONVERT_TO_NULL&nullCatalogM
我得问题解决是数据版本不对应得问题。
原文链接：
https://blog.csdn.net/xiao_22/article/details/80427343
对比之前那个编译web articple，现在是直接用mavengoal进行部署。
<properties>
<project.webroot.path>${basedir}/src/main/webapp</project.webroot.path>
<project.war.path>${basedir}/target/${project.artifactId}-${project.version}</project.war.path>
</properties>
<build>
<plugins>
<!-- 依赖pom文件的jar包 -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<executions>
<execution>
<id>copy-dependencies</id>
<phase>validate</phase>
<goals>
<goal>copy-dependencies</goal>
</goals>
<configuration>
<outputDirectory>${project.webroot.path}/WEB-INF/lib</outputDirectory>
<!--<outputDirectory>${project.war.path}/WEB-INF/lib</outputDirectory>-->
<excludeTransitive>false</excludeTransitive>
<stripVersion>false</stripVersion>
<includeScope>runtime</includeScope>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-resources-plugin</artifactId>
<version>2.4.3</version>
<configuration>
<encoding>${project.build.sourceEncoding}</encoding>
</configuration>
<executions>
<!-- 基础版本的class文件 -->
<execution>
<id>copy-base-classes</id>
<phase>validate</phase>
<goals>
<goal>copy-resources</goal>
</goals>
<configuration>
<encoding>utf-8</encoding>
<outputDirectory>${project.webroot.path}/WEB-INF/classes</outputDirectory>
<!--<outputDirectory>${project.war.path}/WEB-INF/classes</outputDirectory>-->
<resources>
<resource>
<directory>${module.base.path}/target/classes</directory>
</resource>
</resources>
</configuration>
</execution>
<!-- 打包本地jar包 -->
<execution>
<id>copy-configuration-lib</id>
<phase>validate</phase>
<goals>
<goal>copy-resources</goal>
</goals>
<configuration>
<encoding>utf-8</encoding>
<outputDirectory>${project.webroot.path}/WEB-INF/lib</outputDirectory>
<!--<outputDirectory>${project.war.path}/WEB-INF/lib</outputDirectory>-->
<resources>
<resource>
<directory>${module.configuration.path}/src/main/resources/lib</directory>
</resource>
</resources>
</configuration>
</execution>
<!-- 打包配置 -->
<execution>
<id>copy-configuration</id>
<phase>validate</phase>
<goals>
<goal>copy-resources</goal>
</goals>
<configuration>
<encoding>utf-8</encoding>
<outputDirectory>${project.webroot.path}/WEB-INF/classes</outputDirectory>
<!--<outputDirectory>${project.war.path}/WEB-INF/classes</outputDirectory>-->
<resources>
<resource>
<directory>${module.configuration.path}/src/main/resources</directory>
<filtering>false</filtering>
<excludes>
<exclude>**/*.jar</exclude>
</excludes>
</resource>
</resources>
</configuration>
</execution>
</executions>
</plugin>
<!-- 此配置是war包打包配置 -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>3.2.2</version>
<!--<configuration>
<webResources>
<resource>
<directory>${module.configuration.path}/src/main/resources/</directory>
<targetPath>WEB-INF/classes</targetPath>
<filtering>false</filtering>
<excludes>
<exclude>**/*.jar</exclude>
</excludes>
</resource>
<resource>
<directory>${module.configuration.path}/src/main/resources/lib</directory>
<targetPath>WEB-INF/lib</targetPath>
</resource>
<resource>
<directory>${module.base.path}/target/classes/</directory>
<targetPath>WEB-INF/classes</targetPath>
</resource>
</webResources>
</configuration>-->
</plugin>
</plugins>
</build>
```
解析：因为已经通过pom文件进行到包了，所以只需要直接启动在tomcat中部署webapp这个项目就行了。
但是连个项目需要编译到那里噢
