Spring异常

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Java.lang.NoClassDefFoundError: com/fasterxml/jackson/databind/exc/InvalidDefinitionException

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<!-- change jackson-databind version to 2.9.4 -->
<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-databind</artifactId>
    <version>2.9.4</version>
</dependency>

mysql运行报The server time zone value ‘Öйú±ê׼ʱ¼ä’ is unrecognized or represents more than one time z

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show variables like "%time_zone"
set global time_zone="+8:00"

or

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<dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    <version>5.1.39</version>
</dependency>

idea Error parsing SQL Mapper Configuration. Cause: java.io.IOException: Could not find resource

https://blog.csdn.net/u010648555/article/details/70880425
方案1：不将xml放到src目录下面，将xxxMapper.xml放到Maven构建的resource目录下面！
方案2：在Maven的pom文件中，添加下面代码：

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<resources>
    <resource>
        <directory>src/main/resources</directory>
    </resource>
    <resource>
        <directory>src/main/java</directory>
        <includes>
            <include>**/*.xml</include>
        </includes>
    </resource>
</resources>