实战3--设计管理模块, 实现功能

Posted 2020-07-06 wujixing909

 

 

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: