3. 实现功能
1. 写action, 写action中的方法, 确定service中的方法
2. 写service, 确定Dao中的方法
3. 写Dao方法
4. 写jsp
1. 写action里的list和delete方法, 以确实service里需要写的方法
package cn.itcast.oa.view.action;
import java.util.List;
import javax.annotation.Resource;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Controller;
import cn.itcast.oa.domain.Role;
import cn.itcast.oa.service.RoleService;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;
@Controller
@Scope("prototype")
public class RoleAction extends ActionSupport {
/*列表*/
@Resource
private RoleService roleService;
private Long id;
public RoleService getRoleService() {
return roleService;
}
public void setRoleService(RoleService roleService) {
this.roleService = roleService;
}
public String list() throws Exception {
List<Role> roleList=roleService.findAll();
ActionContext.getContext().put("roleList", roleList);
return "list";
}
/*删除*/
public String delete() throws Exception {
roleService.delete(id);
return "toList";
}
/*添加页面*/
public String addUI() throws Exception {
return "addUI";
}
/*添加*/
public String add() throws Exception {
return "toList";
}
/*修改页面*/
public String editUI() throws Exception {
return "editUI";
}
/*修改*/
public String edit() throws Exception {
return "toList";
}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
}
2. 写service, 确定Dao中的方法
在创建RoleAction方法时候写RoleService的时候, 就提示新建的方法了, 然后因为RoleServiceImpl继承了RoleService, 所以在RoleServiceImpl里红色波浪线添加这两个方法即可.
创建RoleService.java
package cn.itcast.oa.service;
import java.util.List;
import cn.itcast.oa.domain.Role;
public interface RoleService {
//查询所有
List<Role> findAll();
void delete(Long id);
}
创建RoleServiceImpl.java
package cn.itcast.oa.service.impl;
import java.util.List;
import javax.annotation.Resource;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import cn.itcast.oa.dao.RoleDao;
import cn.itcast.oa.domain.Role;
import cn.itcast.oa.service.RoleService;
@Service
@Transactional
public class RoleServiceImpl implements RoleService{
@Resource
private RoleDao roleDao;
@Override
public List<Role> findAll() {
return roleDao.findAll();
}
@Override
public void delete(Long id) {
roleDao.delete(id);
}
}
3. Dao方法已经存在
4. 写jsp:
原文：http://www.cnblogs.com/wujixing/p/5498948.html