greenDao 备注

1、构建文件夹存放自动生成的代码，并在脚本中配置：

sourceSets {
        main {
            java.srcDirs = ['src/main/java', 'src/main/java-gen']
        }
    }

2、工程配置，引入greenDao

compile 'de.greenrobot:greendao:1.3.7'

3、构建一个java Libarory类型的Module用以生成DAO代码，如下：

该Module需要添加依赖：

compile 'de.greenrobot:greendao-generator:1.3.1'

public class Generator {

    public static void main(String[] args) throws Exception {

        Schema schema = new Schema(1, "com.example.greendao");

        Entity userInfo = schema.addEntity("UserInfo");

        userInfo.addIdProperty().primaryKey().autoincrement();
        userInfo.addStringProperty("username").notNull();
        userInfo.addStringProperty("password").notNull();

        new DaoGenerator().generateAll(schema, "/Users/fredric/Documents/03.document/01.Android/GdDemo02/app/src/main/java-gen");

    }
}

备注该Module执行后将在java-gen下生成对应的Model和Dao代码。

4、数据库操作：

       fab.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {

                DaoMaster.DevOpenHelper helper = new DaoMaster.DevOpenHelper(getApplicationContext(), "myDb", null);
                SQLiteDatabase db = helper.getWritableDatabase();

                DaoMaster daoMaster = new DaoMaster(db);
                DaoSession daoSession = daoMaster.newSession();

                UserInfo info1 = new UserInfo();
                info1.setUsername("fredric");
                info1.setPassword("2313");

                daoSession.getUserInfoDao().insert(info1);

                List<UserInfo> list = daoSession.getUserInfoDao().loadAll();

                for(UserInfo item:list){
                    System.out.println(item.getUsername());
                    System.out.println(item.getPassword());
                    System.out.println(item.getId());
                }
            }
        });
    }