java - 带有 Hibernate 4.2 错误 : setCharacterStream(ILjava/io/Reader;J)V is abstract 的 C3p0

Question

我正在将 Hibernate 4.2 与 c3p0 一起使用，但出现此错误:Method com/mchange/v2/c3p0/impl/NewProxyPreparedStatement.setCharacterStream(ILjava/io/Reader;J)V is abstract

有人知道我应该使用哪个版本吗？这是我当前的 Maven 依赖项列表:

<dependency>
    <groupId>com.mchange</groupId>
    <artifactId>c3p0</artifactId>
    <version>0.9.2</version>
</dependency>

<dependency>
    <groupId>org.hibernate</groupId>
    <artifactId>hibernate-c3p0</artifactId>
    <version>4.2.0.Final</version>
</dependency>        

Answer 1

PreparedStatement.setCharacterStream()方法已添加到 JDBC 4 并根据 C3P0 release notes :

As of version 0.9.5, c3p0 fully supports the jdbc4 spec.

所以你需要update the C3p0 library to 0.9.5 :

<dependency>
    <groupId>com.mchange</groupId>
    <artifactId>c3p0</artifactId>
    <version>0.9.5</version>
</dependency>

您还可以从 Hibernate 中排除 C3P0 依赖项，以确保 Maven 使用您显式配置的依赖项:

<dependency>
    <groupId>org.hibernate</groupId>
    <artifactId>hibernate-c3p0</artifactId>
    <version>4.2.0.Final</version>
    <exclusions>
        <exclusion>
            <artifactId>c3p0</artifactId>
            <groupId>c3p0</groupId>
        </exclusion>
    </exclusions>
</dependency>