休眠：C3P0性能忽略

Question

我得到以下警告：

15:41:51,043 WARN [org.hibernate.service.jdbc.connections.internal.ConnectionProviderInitiator] (MSC service thread 1-1) HHH000022: c3p0 properties were encountered, but the org.hibernate.service.jdbc.connections.internal.C3P0ConnectionProvider provider class was not found on the classpath; these properties are going to be ignored. 

這裏是爲我Hibernate.xfg.xml設置的屬性：

<property name="hibernate.c3p0.min_size">50</property> 
<property name="hibernate.c3p0.max_size">200</property> 
... (and other properties) 

我沒有任何除了上述屬性之外，關於C3P0的其他配置。

這裏都是我的Hibernate和C3P0依賴在Maven pom.xml的配置：

<dependency> 
    <groupId>org.hibernate</groupId> 
    <artifactId>hibernate-entitymanager</artifactId> 
    <version>4.2.4.Final</version> 
</dependency> 

<dependency> 
    <groupId>org.hibernate</groupId> 
    <artifactId>hibernate-validator</artifactId> 
    <version>4.3.1.Final</version> 
</dependency> 

<dependency> 
    <groupId>c3p0</groupId> 
    <artifactId>c3p0</artifactId> 
    <version>0.9.1.2</version> 
</dependency> 

我所需要的，以便能夠讀取，在目前被忽略的屬性呢？

Answer 1

從這個post看來你缺少hibernate-c3p0依賴

<dependency> 
    <groupId>org.hibernate</groupId> 
    <artifactId>hibernate-c3p0</artifactId> 
    <version>4.1.10.Final</version> 
</dependency> 

你需要配合，在hibernate-core