private HibernateSessionFactory() {
}
}
在这个类中,用到了私有构造函数,如粗体部分.
我的调用类:
package zy.pro.td.plugin;
/*
* Created on Oct 4, 2004
*
* To change the template for this generated file go to
* Window>Preferences>Java>Code Generation>Code and Comments
*/
import javax.servlet.ServletException;
import org.apache.struts.action.ActionServlet;
import org.apache.struts.action.PlugIn;
import org.apache.struts.config.ModuleConfig;
import javax.naming.Context;
import javax.naming.InitialContext;
import zy.pro.td.util.HibernateSessionFactory;
/** *
*This class will initialize hibernate and bind SessionFactory in JNDI at the
*time of application and startup and unbind it from JNDI at the time of application
* shutdown
*/
public class HibernatePlugin
implements PlugIn {
private static final String jndi_hibernate = "jndi_hibernate_factory";
private HibernateSessionFactory hsf;
private String name;
public HibernatePlugin() {
hsf=new HibernateSessionFactory();
}
// This method will be called at the time of application shutdown
public void destroy() {
System.out.println("Entering HibernatePlugIn.destroy()");
//Put hibernate cleanup code here
System.out.println("Exiting HibernatePlugIn.destroy()");
}
//This method will be called at the time of application startup
public void init(ActionServlet actionServlet, ModuleConfig config) throws
ServletException {
System.out.println("Entering HibernatePlugIn.init()");
System.out.println("Value of init parameter " + getName());
//Uncomment next two lines if you want to throw UnavailableException from your servlet
//if(true)
//throw new ServletException("Error configuring HibernatePlugIn");
System.out.println("Exiting HibernatePlugIn.init()");
}
private void bindFactoryToJNDI() {
try {
Context ctx = new InitialContext();
}
catch (Exception e) {
e.printStackTrace();
}
}
public String getName() {
return name;
}
public void setName(String string) {
name = string;
}
}在调用类中,我创建了一个HibernateSessionFactory的对象,但是在初始化时,却出了问题.总提示说:
HibernateSessionFactory() has private access in zy.pro.td.util.HibernateSessionFactory at line 35(35:9)
然后,我就将HibernateSessionFactory的构造函数由private改成了public,调试通过.
构造函数为私有,就不能创建该类的对象.
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