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使用步骤:
1、添加cap0-0.9.1l2 jar包 ,之前DBCP的不要了
2、编写配置文件c3p0-config.xml,放在classpath中,或classes目录中,也就是 src目录中
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/2002/xmlspec/dtd/2.10/xmlspec.dtd">
<c3p0-config>
<default-config>
<property name="driverClass">com.mysql.jdbc.Driver</property>
<property name="jdbcUrl">jdbc:mysql://localhost:3306/paper</property>
<property name="user">root</property>
<property name="password">123456</property>
<property name="initialPoolSize">10</property>
<property name="maxIdleTime">30</property>
<property name="maxPoolSize">100</property>
<property name="minPoolSize">10</property>
</default-config>
</c3p0-config>
3.编写工具类
public class C3P0Utils {
private static DataSource ds= new ComboPooledDataSource();
public static Connection getConnection() throws Exception{
return ds.getConnection();
}