springboot学习过程中遇到的错误集

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错误1：java.lang.AbstractMethodError: Method com/mchange/v2/c3p0/impl/NewProxyResultSet.isClosed()Z is abstract

解决办法：

• 将

  <!--c3p0数据连接池-->
  <dependency>
      <groupId>c3p0</groupId>
      <artifactId>c3p0</artifactId>
      <version>0.9.1.2</version>
  </dependency>
  

• 改成

  <!--c3p0数据连接池-->
  <dependency>
      <groupId>com.mchange</groupId>
      <artifactId>c3p0</artifactId>
      <version>0.9.5.4</version>
  </dependency>
  

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警告2：Spring Boot Configuration Annotation Processor not found in classpath

解决办法：

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-configuration-processor</artifactId>
    <optional>true</optional>
</dependency>

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错误3：

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