Java网络编程精解之基于MVC和RMI的分布式应用二(1)

package store;

import java.util.*;

public class StoreControllerImpl implements StoreController{

private StoreModel storeModel;

private StoreView storeView;

public StoreControllerImpl(StoreModel model, StoreView view ) {

try{

storeModel=model;

storeView=view;

view.addUserGestureListener(this);  //向视图注册控制器自身

}catch(Exception e){

reportException(e);

}

}



/** 报告异常信息 */

private void reportException(Object o){

try{

storeView.showDisplay(o);

}catch(Exception e){

System.out.println("StoreControllerImpl reportException"+e);

}

}



/** 处理根据ID查询客户的动作 */

public void handleGetCustomerGesture(long id){

Customer cust=null;

try{

cust=storeModel.getCustomer(id);   

storeView.showDisplay(cust);

}catch(Exception e){

reportException(e);

cust=new Customer(id);

try{

storeView.showDisplay(cust);

}catch(Exception ex){

reportException(ex);

}

}

}



/** 处理添加客户的动作 */

public void handleAddCustomerGesture(Customer c){

try{

storeModel.addCustomer(c);

}catch(Exception e){

reportException(e);

}

}



/** 处理删除客户的动作 */

public void handleDeleteCustomerGesture(Customer c){…}



/** 处理更新客户的动作 */

public void handleUpdateCustomerGesture(Customer c){…}



/** 处理列出所有客户清单的动作 */ 

public void handleGetAllCustomersGesture(){…}

}

try{

cust=storeModel.getCustomer(id);  //调用模型去处理业务逻辑

storeView.showDisplay(cust);  //调用视图去显示数据

}catch(Exception e){

reportException(e);

…

}

private void reportException(Object o){

try{

storeView.showDisplay(o);  //调用视图去显示异常

}catch(Exception e){

System.out.println("StoreControllerImpl reportException"+e);

}

}