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The method execute is where we placed what we want this controller to do in response to the hello. action . Method execute of HelloWorldAction. public String execute() throws Exception { messageStore = new MessageStore() ; helloCount++; return SUCCESS; } Note that method execute declares it throws an Exception.
This is called Action chaining in Struts 2. One action leads to another one and so on. Request > Action 1 > Action 2 > Response In Struts 2, this can be achieved by Chain Result. The Chain Result is a result type that invokes an Action with its own Interceptor Stack and Result.
Is there any init method provided for struts 2 action class that can be called before every method of that action class?
For example, I have an action class for struts 2 as given below
import com.opensymphony.xwork2.ActionSupport;
public class EmployeeAction extends ActionSupport{
private DepartmentDaoService deptService = new DepartmentDaoService() ;
private EmployeeDaoService empService = new EmployeeDaoService();
private Employee employee;
private List<Employee> employees;
private List<Department> departments;
public void init()
{
//Do initialization stuff here
}
public String getAllEmployees(){
employees = empService.getAllEmployees();
return "success";
}
public String deleteEmployee(){
empService.deleteEmployee(employee.getEmployeeId());
return "success";
}
}
Now in above code when struts action for getAllEmployees() and deleteEmplyee() is called I want init() method to execute first. We can run it by calling it from both functions.
But is there any provision given in struts 2 that will run init method automatically on each call or struts 2 provides any such method for action clases?
Please tell me if anyone knows.
Thanks.
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