連接資料庫需要的步驟：
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); //需要自行創建UserModel類
me.add(activeRecordPlugin);
}
2.配置UserController類，進行操作
public void action1() {
System.out.println("<<<<<<<<<<<action1>>>>>>>>>");
//增
UserModel user = new UserModel();
user.set("name","JJJJJC");
user.set("password", 6987745);
user.save();
//通過id查詢資料
UserModel dbModel = UserModel.DAO.findById(user.getLong("id"));
String name = user.getStr("name");
String password = user.getStr("password");
renderJson("name:"+name+" password:"+password);
}
3.創建UserMode
public class UserModel extends Model<UserModel>{
private static final long serialVersionUID = 1L;
public static final UserModel DAO = new UserModel();
}
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標籤：Java
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