昨天将数据库的程序写好了,今天需要将数据存入数据库,代码如下:
Dao.java
1 import android.content.Context; 2 import android.database.sqlite.SQLiteDatabase; 3 4 public class Dao { 5 6 private final MyDatabaseHelper mHelper; 7 8 public Dao(Context context){ 9 //创建数据库 10 mHelper=new MyDatabaseHelper(context); 11 } 12 13 public void insert(String type,String name,String money,String time,String note){ 14 SQLiteDatabase db=mHelper.getWritableDatabase(); 15 String sql="insert into "+"AcountBook"+"(type,name,money,time,note) values(?,?,?,?,?)"; 16 db.execSQL(sql,new Object[]{type,name,money,time,note}); 17 db.close(); 18 } 19 20 }
AddActivity.java
public class AddActivity extends AppCompatActivity { //完成按钮 private Button mBtnSubmit; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_add); //完成按钮 mBtnSubmit = findViewById(R.id.btn_submit); mBtnSubmit.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { final RadioButton disburseET=findViewById(R.id.disburse);//获取支出位置 final RadioButton incomeET=findViewById(R.id.income);//获取收入位置 final EditText nameET=findViewById(R.id.editname);//获取名称位置 final EditText moneyET=findViewById(R.id.editmoney);//获取金额位置 final EditText timeET=findViewById(R.id.edittime);//获取时间位置 final EditText noteET=findViewById(R.id.editnote);//获取备注位置 String DisData=disburseET.getText().toString();//获取支出位置 String IncData=incomeET.getText().toString();//获取收入位置 String NameData=nameET.getText().toString();//获取名称位置 String MoneyData=moneyET.getText().toString();//获取金额位置 String TimeData=timeET.getText().toString();//获取时间位置 String NoteData=noteET.getText().toString();//获取备注位置 //创建数据库 MyDatabaseHelper helper=new MyDatabaseHelper(AddActivity.this); helper.getWritableDatabase(); Dao dao=new Dao(AddActivity.this); int i=0; if(NameData.equals("")|| MoneyData.equals("")||TimeData.equals("")||NoteData.equals("")){ Toast.makeText(AddActivity.this,"请将信息填写完整",Toast.LENGTH_SHORT).show(); }else{ do{ if(incomeET.isChecked()){ dao.insert(IncData,NameData,MoneyData,TimeData,NoteData); Toast.makeText(AddActivity.this,"收入写入成功",Toast.LENGTH_SHORT).show(); i=1; }else if (disburseET.isChecked()){ dao.insert(DisData,NameData,MoneyData,TimeData,NoteData); Toast.makeText(AddActivity.this,"支出写入成功",Toast.LENGTH_SHORT).show(); i=1; }else{ Toast.makeText(AddActivity.this,"请将信息填写完整",Toast.LENGTH_SHORT).show(); i=0; } }while(i==0); Toast.makeText(AddActivity.this,"保存成功",Toast.LENGTH_SHORT).show(); Intent intent=null; //返回主页 intent=new Intent(AddActivity.this,MainActivity.class); startActivity(intent); } } }); } }