为何这个SessionFactory不能同时使用static final修饰，不能编译
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j2ee_yohn
2009-02-20
public class HibernateSessionFactory {
private static String CONFIG_FILE_LOCATION = "/com/yohn/hib/hibernate.cfg.xml";
private static final ThreadLocal<Session> threadLocal = new ThreadLocal<Session>();
private static Configuration configuration = new Configuration();
private static final org.hibernate.SessionFactory sessionFactory;
private static String configFile = CONFIG_FILE_LOCATION;
static {
try {
configuration.configure(configFile);
sessionFactory = configuration.buildSessionFactory();
} catch (Exception e) {
System.err
.println("%%%% 7777777777 Error Creating SessionFactory %%%%");
e.printStackTrace();
}
}
private HibernateSessionFactory() {
}
}
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HeroXuan
2009-03-23
[b][/b]
 
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HeroXuan
2009-03-23
j2ee_yohn 写道
public class HibernateSessionFactory {
private static String CONFIG_FILE_LOCATION = "/com/yohn/hib/hibernate.cfg.xml";
private static final ThreadLocal<Session> threadLocal = new ThreadLocal<Session>();
private static Configuration configuration = new Configuration();
private static final org.hibernate.SessionFactory sessionFactory;
private static String configFile = CONFIG_FILE_LOCATION;
static {
try {
configuration.configure(configFile);
sessionFactory = configuration.buildSessionFactory();
} catch (Exception e) {
System.err
.println("%%%% 7777777777 Error Creating SessionFactory %%%%");
e.printStackTrace();
}
}
private HibernateSessionFactory() {
}
}
sdfdsf |
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cgjcsl
2009-03-29
老兄，我也刚接触不久.我是看不出问题，感觉没错。
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yhsniaw
2009-03-29
final 修饰的变量为常量，必须先赋值,并且程序中不能改变其值
如： private static final SessionFactory sessionFactory = configuration.buildSessionFactory(); |
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j2ee_yohn
2009-03-30
yhsniaw 写道 final 修饰的变量为常量，必须先赋值,并且程序中不能改变其值
如： private static final SessionFactory sessionFactory = configuration.buildSessionFactory(); 我试了别的对象，可以这么做！ |
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danielli007
2009-05-04
final类型的实例变量在使用类静态块初始化的时候，不允许使用try-catch,但可以使用try-finally
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jsjzhou
2010-04-26
public class HibernateUtil {
/** sessionFactory */ private static final SessionFactory sessionFactory; static { sessionFactory = new AnnotationConfiguration().configure( "org/jianhua/hibernate/lesson04/util/myhibernate.cfg.xml") .buildSessionFactory(); } /** * 获取session * * @return */ public static Session getSession() { return sessionFactory.openSession(); } } |
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jsjzhou
2010-04-26
可以用static final的。
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552jun
2011-11-12
2 |
