AndroidX之Greendao集成

添加依赖

根工程：build.gradle

 //数据库
        classpath 'org.greenrobot:greendao-gradle-plugin:3.3.0' // add plugin

项目工程：build.gradle

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


implementation 'org.greenrobot:greendao:3.3.0'

make一下项目后
Application初始化数据库

 private static DaoSession mDaoSession;
    public static DaoSession getmDaoSession() {
        return mDaoSession;
    }
    /**
     * 初始化数据库
     */
    private void setDataBaseData() {
        //创建数据库shop.db"
        DaoMaster.DevOpenHelper mDaoMaster = new DaoMaster.DevOpenHelper(this, "inspection.db", null);
        //获取可写的数据库
        SQLiteDatabase writableDatabase = mDaoMaster.getWritableDatabase();
        //获取数据库对象
        DaoMaster daoMaster = new DaoMaster(writableDatabase);
        //获取Dao对象管理者
        mDaoSession = daoMaster.newSession();
    }

新建一个实体类，然后make一下

package com.yufulife.xj.model;

import com.yufulife.xj.bean.CameraTakeBean;
import com.yufulife.xj.bean.JoinTakeBean;
import com.yufulife.xj.bean.ListSubCachedBeanConverter;

import org.greenrobot.greendao.annotation.Convert;
import org.greenrobot.greendao.annotation.Entity;
import org.greenrobot.greendao.annotation.Generated;
import org.greenrobot.greendao.annotation.Id;
import org.greenrobot.greendao.annotation.Unique;

import java.util.HashMap;
import java.util.List;


@Entity
public class People {
    //不能用int
    @Id(autoincrement = true)
    private Long id;


    //巡检编号
    @Unique
    private String inspection_id="";




    private String content="";

    @Convert(converter = ListSubCachedBeanConverter.class, columnType = String.class)
    private List<JoinTakeBean> mImgTT;

    @Generated(hash = 574353758)
    public People(Long id, String inspection_id, String content, List<JoinTakeBean> mImgTT) {
        this.id = id;
        this.inspection_id = inspection_id;
        this.content = content;
        this.mImgTT = mImgTT;
    }

    @Generated(hash = 1406030881)
    public People() {
    }

    public Long getId() {
        return this.id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    public String getInspection_id() {
        return this.inspection_id;
    }

    public void setInspection_id(String inspection_id) {
        this.inspection_id = inspection_id;
    }

    public String getContent() {
        return this.content;
    }

    public void setContent(String content) {
        this.content = content;
    }

    public List<JoinTakeBean> getMImgTT() {
        return this.mImgTT;
    }

    public void setMImgTT(List<JoinTakeBean> mImgTT) {
        this.mImgTT = mImgTT;
    }


   
}

最后管理工具类

package com.yufulife.xj.model;

import android.util.Log;

import com.google.gson.Gson;
import com.yufulife.xj.App;

import org.greenrobot.greendao.query.QueryBuilder;

import java.util.ArrayList;
import java.util.List;

/**
 * Created by wf on 2019/10/7.
 */
public class FaceMsgDao {

    private static final String TAG = "ClockInfoDao";

    /**
     * 添加数据，如果有重复则覆盖
     *
     * @param people
     */
    public static void insertData(People people) {
        long l = App.getmDaoSession().getPeopleDao().insertOrReplace(people);
        System.out.println("liu::::::  "+l);
    }

    public static long getId(People people) {

        return App.getmDaoSession().getPeopleDao().getKey(people);
    }

    public static People getPeopleWhere(String Inspection_id){
        List<People> list = App.getmDaoSession().getPeopleDao().queryBuilder().where(PeopleDao.Properties.Inspection_id.eq(Inspection_id)).list();
        if (list!=null){
            if (list.size()>=1){
                return list.get(0);
            }
        }
        return null;
    }
    public static void deletePeopleWhere(String Inspection_id){
        App.getmDaoSession().getPeopleDao().queryBuilder().where(PeopleDao.Properties.Inspection_id.eq(Inspection_id)) .buildDelete().executeDeleteWithoutDetachingEntities();

    }
    /**
     * 更新数据
     *
     * @param people
     */
    public static void updateData(People people) {
        App.getmDaoSession().getPeopleDao().update(people);
    }
    /**
     * 查询全部数据
     */
    public static List<People> queryAll() {
        return App.getmDaoSession().getPeopleDao().loadAll();
    }

    public static void systemOutPeopleAll(){
        List<People> people = queryAll();
        for (People people1:people){
            System.out.println("liu::all  "+new Gson().toJson(people1));
        }
    }


    public static People getPeople(String war) {
        List<People> clockInfos = queryAll();
        if (clockInfos==null){
            System.out.println("liu:::  "+"沒有找到数据");
            return null;
        }

        for (People info : clockInfos) {
            if (info.getInspection_id() .equals(war) ) {
                return info;
            }
        }
        System.out.println("liu:::  "+"沒有找到数据");
        return null;
    }


}