2月3日
作者:互联网
体温上报,数据操作
体温录入
public void insertDB(View view) { MyDBHelper mydbh=new MyDBHelper(this,"amydb.db",1); SQLiteDatabase sqldb=mydbh.getReadableDatabase(); ContentValues contentvalues=new ContentValues(); text1=(EditText)findViewById(R.id.tv_text1); text2=(EditText)findViewById(R.id.tv_text2); text3=(EditText)findViewById(R.id.tv_text3); text4=(EditText)findViewById(R.id.tv_text4); contentvalues.put("name",text1.getText().toString()); contentvalues.put("dateandtime",text2.getText().toString()); contentvalues.put("address",text4.getText().toString()); contentvalues.put("wendu",text3.getText().toString()); long flag=sqldb.insert("personwendu",null,contentvalues); Toast.makeText(this,"数据加入成功"+flag,Toast.LENGTH_LONG).show(); }
体温记录删除
public void deleteDate(View view) { MyDBHelper mydbh=new MyDBHelper(this,"mydb.db",1); SQLiteDatabase sqldb=mydbh.getReadableDatabase(); int flag=sqldb.delete("person","id=1",null); Toast.makeText(this,"已有"+flag+"条数据删除",Toast.LENGTH_LONG).show(); }
体温修改
public void updateData(View view) { MyDBHelper mydbh=new MyDBHelper(this,"mydb.db",1); SQLiteDatabase sqldb=mydbh.getReadableDatabase(); ContentValues contentvalues=new ContentValues(); contentvalues.put("name","明明"); contentvalues.put("age","12"); int flag=sqldb.update("person",contentvalues,"name=?",new String[]{"李明"}); Toast.makeText(this,"已有"+flag+"条数据修改",Toast.LENGTH_LONG).show(); }
历史记录查询
public void queryData(View view) { MyDBHelper mydbh=new MyDBHelper(this,"amydb.db",1); SQLiteDatabase sqldb=mydbh.getReadableDatabase(); Cursor cursor=sqldb.rawQuery("select * from personwendu",null); String str=""; if(cursor.moveToFirst()) { do{ String name=cursor.getString(cursor.getColumnIndex("name")); String dateandtime=cursor.getString(cursor.getColumnIndex("dateandtime")); String address=cursor.getString(cursor.getColumnIndex("address")); String wendu=cursor.getString(cursor.getColumnIndex("wendu")); str=str+name+"|"+dateandtime+"|"+wendu+"\n"+address+"\n"; }while(cursor.moveToNext()); } AlertDialog.Builder builder=new AlertDialog.Builder(this); builder.setTitle("历史记录").setIcon(R.mipmap.ic_launcher).setMessage(str) .setPositiveButton("ok", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { } }); AlertDialog ad=builder.create(); ad.show(); }
标签:,mydbh,sqldb,cursor,MyDBHelper,contentvalues,new 来源: https://www.cnblogs.com/fujiaw/p/14911190.html