Bmob后端云的使用(2)——云端数据库的使用

本文介绍了如何使用Bmob后端云进行数据库操作,包括创建实体类、添加数据到云端数据库、从云端读取数据并以ListView显示,以及实现列表项的点击事件和数据的修改与删除功能。通过示例代码详细讲解了每个步骤,适合初学者和快速开发者学习。

1、初始化实体类

package com.xmut.aidhealthier.been;




import android.provider.ContactsContract.Contacts.Data;
import cn.bmob.v3.BmobObject;
import cn.bmob.v3.datatype.BmobFile;


public class EleRecords extends BmobObject {
/**

*/
private static final long serialVersionUID = 1L;
private String edt_title;
private String edt_ydskf;
private String edt_yds60;
private String edt_yds120;
private String edt_yds180;
private String edt_ctkf;
private String edt_ct60;
private String edt_ct120;
private String edt_ct180;
private String edt_gad;
private String edt_ydskt;
private String edt_kydxbkt;
private String edt_date;
private String edt_other;
private Data ckdate;
private BmobFile image;
private MyUser author;

public BmobFile getImage() {
return image;
}
public void setImage(BmobFile image) {
this.image = image;
}
public MyUser getAuthor() {
return author;
}
public void setAuthor(MyUser author) {
this.author = author;
}
public Data getckdate() {
return ckdate;
}
public void setckdate(Data ckdate) {
this.ckdate = ckdate;
}
public String getEdt_other() {
return edt_other;
}
public void setEdt_other(String edt_other) {
this.edt_other = edt_other;
}
public String getEdt_date() {
return edt_date;
}
public void setEdt_date(String edt_date) {
this.edt_date = edt_date;
}
public String getEdt_title() {
return edt_title;
}
public void setEdt_title(String edt_title) {
this.edt_title = edt_title;
}
public String getEdt_ydskf() {
return edt_ydskf;
}
public void setEdt_ydskf(String edt_ydskf) {
this.edt_ydskf = edt_ydskf;
}
public String getEdt_yds60() {
return edt_yds60;
}
public void setEdt_yds60(String edt_yds60) {
this.edt_yds60 = edt_yds60;
}
public String getEdt_yds120() {
return edt_yds120;
}
public void setEdt_yds120(String edt_yds120) {
this.edt_yds120 = edt_yds120;
}
public String getEdt_yds180() {
return edt_yds180;
}
public void setEdt_yds180(String edt_yds180) {
this.edt_yds180 = edt_yds180;
}
public String getEdt_ctkf() {
return edt_ctkf;
}
public void setEdt_ctkf(String edt_ctkf) {
this.edt_ctkf = edt_ctkf;
}
public String getEdt_ct60() {
return edt_ct60;
}
public void setEdt_ct60(String edt_ct60) {
this.edt_ct60 = edt_ct60;
}
public String getEdt_ct120() {
return edt_ct120;
}
public void setEdt_ct120(String edt_ct120) {
this.edt_ct120 = edt_ct120;
}
public String getEdt_ct180() {
return edt_ct180;
}
public void setEdt_ct180(String edt_ct180) {
this.edt_ct180 = edt_ct180;
}
public String getEdt_gad() {
return edt_gad;
}
public void setEdt_gad(String edt_gad) {
this.edt_gad = edt_gad;
}
public String getEdt_ydskt() {
return edt_ydskt;
}
public void setEdt_ydskt(String edt_ydskt) {
this.edt_ydskt = edt_ydskt;
}
public String getEdt_kydxbkt() {
return edt_kydxbkt;
}
public void setEdt_kydxbkt(String edt_kydxbkt) {
this.edt_kydxbkt = edt_kydxbkt;
}


}


2、新建数据库和数据添加方法(XML文件略)

  package com.xmut.aidhealthier.elerecords;


import java.io.Serializable;


import com.xmut.aidhealthier.R;
import com.xmut.aidhealthier.been.EleRecords;
import com.xmut.aidhealthier.been.MyUser;


import android.app.Activity;
import android.os.Bundle;
import android.provider.ContactsContract.Contacts.Data;
import android.view.View;
import android.view.Window;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
import cn.bmob.v3.Bmob;
import cn.bmob.v3.BmobUser;
import cn.bmob.v3.listener.SaveListener;


public class EleRecordsActivity extends Activity implements Serializable {
/**

*/
private static final long serialVersionUID = 1L;
private EditText medt_title, medt_ydskf, medt_yds60, medt_yds120,
medt_yds180, medt_ctkf, medt_ct60, medt_ct120, medt_ct180,
medt_gad, medt_ydskt, medt_kydxbkt, other,cdate;
private Button btn_cancle;


protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// re

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