seam 上下文seam 把它的上下文绑定到HttpSessionseam 获取HttpRequest :EmployeeQuery employeeQuery (E
seam 上下文
seam 把它的上下文绑定到HttpSession
seam 获取HttpRequest :
EmployeeQuery employeeQuery = (EmployeeQuery) Component.getInstance(EmployeeQuery.class);
seam 自己又有conversation SESSION 等等作用域