Android整合GreenDao数据存储

Android整合GreenDao数据存储

一、添加依赖

1、project下的settings.gradle

pluginManagement {
    repositories {
//        gradlePluginPortal()
//        google()
//        mavenCentral()
        maven { url 'https://maven.aliyun.com/repository/google'}
        maven { url 'https://maven.aliyun.com/repository/gradle-plugin'}
        maven { url 'https://maven.aliyun.com/repository/public'}
        maven { url 'https://maven.aliyun.com/repository/central'}
    }
}
dependencyResolutionManagement {
    repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
    repositories {
//        google()
//        mavenCentral()
//        jcenter()
        maven { url 'https://maven.aliyun.com/repository/google'}
        maven { url 'https://maven.aliyun.com/repository/gradle-plugin'}
        maven { url 'https://maven.aliyun.com/repository/public'}
        maven { url 'https://maven.aliyun.com/repository/central'}
        maven { url "https://jitpack.io" }

    }
}
rootProject.name = "assetApplication"
include ':app'

2、build.gradle中

buildscript {
    dependencies {
        classpath 'org.greenrobot:greendao-gradle-plugin:3.3.0'
    }
}

3、app中的build.gradle中

//最上方
apply plugin: 'org.greenrobot.greendao'

//greendao配置
greendao {
	//数据库版本号，升级时修改
	schemaVersion 1
	//生成的DAO，DaoMaster和DaoSession的包路径。默认与表实体所在的包路径相同
	daoPackage 'com.xln.greendao'
	//生成源文件的路径。默认源文件目录是在build目录中的(build/generated/source/greendao)
	targetGenDir 'src/main/java'
    }
//添加依赖
implementation 'org.greenrobot:greendao:3.3.0'

二、配置DaoMaster和DaoSession

//新增MyApplication文件
public class MyApp extends Application {
    public InventoryDao inventoryDao=null;

    /**
     * 用户名
     */
    private String username;

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }



    @Override
    public void onCreate() {
        super.onCreate();
		//数据库名称
        DaoMaster.DevOpenHelper devOpenHelper = new DaoMaster.DevOpenHelper(this,"asset.db",null);
        SQLiteDatabase sqLiteDatabase = devOpenHelper.getWritableDatabase();
        DaoMaster daoMaster = new DaoMaster(sqLiteDatabase);
        DaoSession daoSession = daoMaster.newSession();
		//自己的实体（第三步完成后可添加）
        inventoryDao = daoSession.getInventoryDao();
    }

三、配置实体类

@Entity(nameInDb = "inventory",active = true )
public class Inventory {
    @Id(autoincrement = true)
    @Unique
    private Long id;
}

四、使用build->Make project重写构建项目

五、实现增删改查

参考：https://blog.csdn.net/qq_21154101/article/details/90679067