连接数据库需要的步骤:
0.放入需要的jar包
1.DemoConfig的插件配置
public void configPlugin(Plugins me) { //添加插件 me.add(new EhCachePlugin()); DruidPlugin druidPlugin = new DruidPlugin("jdbc:mysql://127.0.0.1:3306/jfinal_demo", "root","admin"); me.add(druidPlugin); //激活插件 ActiveRecordPlugin activeRecordPlugin = new ActiveRecordPlugin(druidPlugin); activeRecordPlugin.addMapping("user", UserModel.class); //需要自行创建UserModel类 me.add(activeRecordPlugin); }
2.配置UserController类,进行操作
public void action1() { System.out.println("<<<<<<<<<<<action1>>>>>>>>>"); //增 UserModel user = new UserModel(); user.set("name","JJJJJC"); user.set("password", 6987745); user.save(); //通过id查询数据 UserModel dbModel = UserModel.DAO.findById(user.getLong("id")); String name = user.getStr("name"); String password = user.getStr("password"); renderJson("name:"+name+" password:"+password); }
3.创建UserMode
public class UserModel extends Model<UserModel>{ private static final long serialVersionUID = 1L; public static final UserModel DAO = new UserModel(); }
原文链接:https://www.cnblogs.com/Mortty/p/13378552.html