c3p0

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于 2015-05-16 13:08:33 发布

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本文链接：https://blog.youkuaiyun.com/pengjun4312465/article/details/45767635

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1.
类路径下c3p0-config.xml
<c3p0-config>
    <named-config name="">
        <property name=""></property>
    </named-config>
</c3p0-config>
类路径下c3p0.properties
key=value
2.
ComboPooledDataSource dataSource = new ComboPooledDataSource("1的named-config的name属性值对应");

ComboPooledDataSource dataSource = new ComboPooledDataSource();

Properties props = new Properties();
ClassLoader loader = Thread.currentThread().getContextClassLoader();
InputStream stream = loader.getResourceAsStream("c3p0.properties");
props.load(stream);
dataSource.setDriverClass(props.getProperty(key));        


//dataSource.setxxx设置属性和在配置文件里设置一样,dataSource.getxxx获得属性
dataSource.toString(true)//可以输出看到配置的信息
dataSource.close();//关闭