java 视频学习，控制层的编写 2015年9月20日
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控制层的编写

一、代码实现

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package com.imooc.action;
 
import java.sql.SQLException;
import java.util.List;
import java.util.Map;
 
import com.imooc.dao.GoddnessDao;
import com.imooc.model.Goddness;
 
 
public class GoddessAction {
public void add(Goddness goddness) throws Exception
{
GoddnessDao dao = new GoddnessDao();
dao.addGoddess(goddness);
}
 
public void del(Integer id) throws Exception
{
GoddnessDao dao = new GoddnessDao();
dao.delGoddess(id);
}
public Goddness get(Integer id) throws SQLException    //为什么public class？
{
GoddnessDao dao = new GoddnessDao();
return dao.get(id);
}
public void update(Goddness goddness) throws Exception
{
GoddnessDao dao = new GoddnessDao();
dao.updateGoddess(goddness);
}
public List<Goddness>query() throws Exception
{
GoddnessDao dao = new GoddnessDao();
return dao.query();
}
public List<Goddness> query(List<Map<String, Object>> params) throws Exception
{
GoddnessDao dao = new GoddnessDao();
return dao.query(params);
}
}
/*public static void main(String[] args) throws Exception {
// TODO Auto-generated method stub
GoddnessDao g = new GoddnessDao();
//List<Goddness> result = g.query("xie","503822883","w");
List<Map<String, Object>> params = new ArrayList<Map<String,Object>>();
Map<String, Object>param = new HashMap<String,Object>();
param.put("name", "user_name");
param.put("rela", "like");
param.put("value", "'%xie%'");
params.add(param);
        param = new HashMap<String,Object>();
param.put("name", "mobile");
param.put("rela", "like");
param.put("value", "'%5038%'");
params.add(param);
List<Goddness> result = g.query(params);
for(int i = 0;i < result.size(); i++)
{
System.out.println(result.get(i).toString());
}
/*List<Goddness> gs = g.query();
for(Goddness goddness : gs)
{
System.out.println(goddness.getUser_name()+","+goddness.getAge());
}  
Goddness g1 = new Goddness();
g1.setUser_name("test");
g1.setAge(19);
g1.setSex(1);
g1.setBirthday(new Date());
g1.setEmail("503822883@qq.com");
g1.setMobile("503822883");
g1.setCreate_user("admin");
g1.setUpdate_user("admin");
    g1.setIsdel(1);
//g1.setId(2);
//Goddness g2 = g.get(2);
//System.out.println(g2.toString());
//g.delGoddess(1);
//g.updateGoddess(g1);
//g.addGoddess(g1);
}
 
}*/

写一个actiontest类来测试控制层的功能：

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package com.imooc.test;
 
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
 
import com.imooc.action.GoddessAction;
import com.imooc.model.Goddness;
 
public class testaction {
 
public static void main(String[] args) throws Exception {
GoddessAction action = new GoddessAction();
Goddness g = new Goddness();
g.setUser_name("test");
g.setSex(1);
g.setAge(15);
g.setBirthday(new Date());
g.setEmail("503822883@qq.com");
g.setMobile("missfortune");
g.setIsdel(0);
g.setId(4);
//action.add(g);
//action.update(g);
action.del(4);
List<Map<String, Object>>params = new ArrayList<Map<String, Object>>();
Map<String, Object>map = new HashMap<String, Object>();
map.put("name", "user_name");
map.put("rela", "=");
map.put("value", "'test'");
params.add(map);
List<Goddness>result =  action.query(params);
for (int i = 0; i < result.size(); i++) {
System.out.println(result.get(i).getId()+
":"+result.get(i).getUser_name());
}
}
}

比较简单的实现。

二、总结

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