Bmob.initialize(this,application_id);

<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"/>

public class Student extends BmobObject{
    private String sno;
    private String sname;
    private  int age;

    public String getSno() {
        return sno;
    }

    public void setSno(String sno) {
        this.sno = sno;
    }

    public String getSname() {
        return sname;
    }

    public void setSname(String sname) {
        this.sname = sname;
    }

    public int getAge() {
        return age;
    }

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

 public  void  add_click(View view){
        final Student stu = new Student();
        stu.setSno("06108080");
        stu.setSname("张三");
        stu.setAge(24);
        stu.save(this, new SaveListener() {
            @Override
            public void onSuccess() {
                Toast.makeText(MainActivity.this,"添加数据成功，返回的objectid为：" + stu.getObjectId(),Toast.LENGTH_LONG).show();
            }

            @Override
            public void onFailure(int i, String s) {
                Toast.makeText(MainActivity.this,"添加数据失败：" + s, Toast.LENGTH_LONG).show();
            }
        });
    }