问题及日志使用Spring和mybatis,然后配置事务,出现SqlSession was not registered for synchronization because synchronization is not active,事务没有启用成功. [org.mybatis.spring.SqlSessionUtils] - Creating a new SqlSession [org.mybatis.spring.SqlSessionUtils] - SqlSession [org.a
首先,准备service接口,两个 public interface AccountService { public void createAccount(Account account, int throwExpFlag) throws Exception; public void createAccountShell(Account account, int i) throws Exception; } public interface RoleService { public void c
在多继承中,如果一个子类继承了两个平级的父类,而这两个父类有两个相同名字的方法,那么一般先继承谁,调用方法就调用先继承的那个父类的方法.如: class A: def test(self): print('AAAAA') class B: def test(self): print('BBBBB') class C(A,B): pass c = C() c.test() >>>AAAAA 可以看出,先继承了A,所以输出的是AAAAA.那么由此引出了一个问题,python解释器是如何对方法
java的calss中,在public static void main(String[] args) { }方法中调用非static的方法:在main方法中创建该calss的对象,用对象调用非static方法 public class Test{ public void testaction(){ //方法体 } public static void main(String[] args) { Test test = new Test(); test.testaction(); } }
方法的调用从Attr类的visitApply()方法进入,如下: /** Visitor method for method invocations. * NOTE: The method part of an application will have in its type field * the return type of the method, not the method's type itself! */ public void visitApply(JCMethodInvocat