Android 比目云服务之CRUD

最新推荐文章于 2023-12-06 15:21:08 发布

原创最新推荐文章于 2023-12-06 15:21:08 发布 · 809 阅读

0 ·

CC 4.0 BY-SA版权

ANDROID 专栏收录该内容

20 篇文章

订阅专栏

本文介绍如何使用Bmob提供的云数据库服务在Android应用中实现数据的增删改查操作，包括下载jar包、配置权限、创建数据模型及进行CRUD操作的示例代码。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

1.去官网下载jar包和申请应用密钥。

2.导入jar并且加上所需权限

    <uses-permission android:name="android.permission.INTERNET"/>
    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
    <uses-permission android:name="android.permission.READ_PHONE_STATE"/>
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
    <uses-permission android:name="android.permission.READ_LOGS"/>

3.代码演示

public class Footballer extends BmobObject{
	
	
	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;


	private String name;
	
	private int age;
	
	private int score;

	public Footballer(){
		
	}
	
	public Footballer(String name, int age, int score) {
		this.name = name;
		this.age = age;
		this.score = score;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public int getAge() {
		return age;
	}

	public void setAge(int age) {
		this.age = age;
	}

	public int getScore() {
		return score;
	}

	public void setScore(int score) {
		this.score = score;
	}

}

public class MainActivity extends Activity implements OnClickListener {
	

	private Button create;
	private Button update;
	private Button delete;
	private Button search;
	private Footballer footballer;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		
		Bmob.initialize(this, "应用密钥");
		create = (Button)findViewById(R.id.create);
		update = (Button)findViewById(R.id.update);
		delete = (Button)findViewById(R.id.delete);
		search = (Button)findViewById(R.id.search);
		
		create.setOnClickListener(this);
		update.setOnClickListener(this);
		delete.setOnClickListener(this);
		search.setOnClickListener(this);
	}
	@Override
	public void onClick(View arg0) {
		switch(arg0.getId()){
		case R.id.create:
			footballer = new Footballer("Terry", 19, 99);
			footballer.save(this, new SaveListener() {
				
				@Override
				public void onSuccess() {
					// TODO Auto-generated method stub
					Toast.makeText(MainActivity.this, "成功", 2000).show();
				}
				@Override
				public void onFailure(int arg0, String arg1) {
					// TODO Auto-generated method stub
					Toast.makeText(MainActivity.this, "失败", 2000).show();
				}
			});
			break;
		case R.id.update:
			footballer = new Footballer("Terry", 22, 89);
			footballer.update(this,"表的objectId" , new UpdateListener() {
				
				@Override
				public void onSuccess() {
					// TODO Auto-generated method stub
					Toast.makeText(MainActivity.this, "成功", 2000).show();
				}
				@Override
				public void onFailure(int arg0, String arg1) {
					// TODO Auto-generated method stub
					Toast.makeText(MainActivity.this, "失败", 2000).show();
				}
			});
			
		case R.id.delete:
			footballer = new Footballer();
			footballer.setObjectId("表的objectId");</span>
			footballer.delete(this, new DeleteListener() {
				
				@Override
				public void onSuccess() {
					// TODO Auto-generated method stub
					Toast.makeText(MainActivity.this, "成功", 2000).show();
				}
				@Override
				public void onFailure(int arg0, String arg1) {
					// TODO Auto-generated method stub
					Toast.makeText(MainActivity.this, "失败" + arg1, 2000).show();
				}
			});
	
		case R.id.search:
			BmobQuery<Footballer> bmobQuery = new BmobQuery<Footballer>();
			bmobQuery.getObject(this, "表的objectId", new GetListener<Footballer>() {</span>
				
				@Override
				public void onSuccess(Footballer arg0) {
					// TODO Auto-generated method stub
					Toast.makeText(MainActivity.this, "成功", 2000).show();
				}
				
				@Override
				public void onFailure(int arg0, String arg1) {
					// TODO Auto-generated method stub
					Toast.makeText(MainActivity.this, "失败" + arg1, 2000).show();
				}
			});break;<span style="font-family: Arial, Helvetica, sans-serif; background-color: rgb(255, 255, 255);">}}}</span>

PS：可以在应用管理里面的数据浏览看数据结果