如何将DBCP数据库连接池技术改写为支持长尾关键词的？

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plaintextprivate static DataSource source;private static ThreadLocal local=new ThreadLocal();static { Properties pro=new Properties(); InputStream in=DBCPUtils.class.getClassLoader().getResourceAsStream(dbcpconfig.properties);}

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private static DataSource source; private static ThreadLocal local=new ThreadLocal (); static{ Properties pro = new Properties(); InputStream in = DBCPUtils.class.getClassLoader().getResourceAsStream("dbcpconfig.properties"); try { pro.load(in); BasicDataSourceFactory factory = new BasicDataSourceFactory(); source = factory.createDataSource(pro); } catch (Exception e) { new ExceptionInInitializerError(e); }