|
|
|
|
@ -1,5 +1,7 @@ |
|
|
|
|
package com.arialyy.downloadutil.orm; |
|
|
|
|
|
|
|
|
|
import android.app.Application; |
|
|
|
|
import android.content.Context; |
|
|
|
|
import android.database.Cursor; |
|
|
|
|
import android.database.sqlite.SQLiteDatabase; |
|
|
|
|
import android.support.annotation.NonNull; |
|
|
|
|
@ -8,6 +10,9 @@ import android.util.Log; |
|
|
|
|
import com.arialyy.downloadutil.util.Util; |
|
|
|
|
|
|
|
|
|
import java.lang.reflect.Field; |
|
|
|
|
import java.util.ArrayList; |
|
|
|
|
import java.util.Date; |
|
|
|
|
import java.util.List; |
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
* Created by AriaLyy on 2015/2/11. |
|
|
|
|
@ -15,7 +20,8 @@ import java.lang.reflect.Field; |
|
|
|
|
*/ |
|
|
|
|
public class DbUtil { |
|
|
|
|
private static final String TAG = "DbUtil"; |
|
|
|
|
private volatile static DbUtil mDbUtil = null; |
|
|
|
|
private volatile static DbUtil INSTANCE = null; |
|
|
|
|
private static final Object LOCK = new Object(); |
|
|
|
|
private int CREATE_TABLE = 0; |
|
|
|
|
private int TABLE_EXISTS = 1; |
|
|
|
|
private int INSERT_DATA = 2; |
|
|
|
|
@ -24,32 +30,40 @@ public class DbUtil { |
|
|
|
|
private int FIND_ALL_DATA = 5; |
|
|
|
|
private int DEL_DATA = 6; |
|
|
|
|
private int ROW_ID = 7; |
|
|
|
|
private static final Object LOCK = new Object(); |
|
|
|
|
private SQLiteDatabase mDb; |
|
|
|
|
private SqlHelper mHelper; |
|
|
|
|
|
|
|
|
|
private DbUtil() { |
|
|
|
|
|
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
private DbUtil(SQLiteDatabase db) { |
|
|
|
|
mDb = db; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
protected static DbUtil getInstance(SQLiteDatabase db) { |
|
|
|
|
if (mDbUtil == null) { |
|
|
|
|
public static DbUtil init(Context context) { |
|
|
|
|
if (context instanceof Application) { |
|
|
|
|
synchronized (LOCK) { |
|
|
|
|
if (mDbUtil == null) { |
|
|
|
|
mDbUtil = new DbUtil(db); |
|
|
|
|
if (INSTANCE == null) { |
|
|
|
|
INSTANCE = new DbUtil(context); |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
return mDbUtil; |
|
|
|
|
return INSTANCE; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
private DbUtil(Context context) { |
|
|
|
|
mHelper = new SqlHelper(context.getApplicationContext()); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
protected static DbUtil getInstance() { |
|
|
|
|
if (INSTANCE == null) { |
|
|
|
|
throw new NullPointerException("请在Application中调用init进行数据库工具注册注册"); |
|
|
|
|
} |
|
|
|
|
return INSTANCE; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
* 删除某条数据 |
|
|
|
|
*/ |
|
|
|
|
protected void delData(DbEntity dbEntity, @NonNull Object[] wheres, @NonNull Object[] values) { |
|
|
|
|
mDb = mHelper.getWritableDatabase(); |
|
|
|
|
if (wheres.length <= 0 || values.length <= 0) { |
|
|
|
|
Log.e(TAG, "输入删除条件"); |
|
|
|
|
return; |
|
|
|
|
@ -62,19 +76,19 @@ public class DbUtil { |
|
|
|
|
int i = 0; |
|
|
|
|
for (Object where : wheres) { |
|
|
|
|
sb.append(where).append("=").append("'").append(values[i]).append("'"); |
|
|
|
|
sb.append(i >= wheres.length - 1 ? |
|
|
|
|
"" : |
|
|
|
|
","); |
|
|
|
|
sb.append(i >= wheres.length - 1 ? "" : ","); |
|
|
|
|
i++; |
|
|
|
|
} |
|
|
|
|
print(DEL_DATA, sb.toString()); |
|
|
|
|
mDb.execSQL(sb.toString()); |
|
|
|
|
close(); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
* 修改某行数据 |
|
|
|
|
*/ |
|
|
|
|
protected void modifyData(DbEntity dbEntity) { |
|
|
|
|
mDb = mHelper.getWritableDatabase(); |
|
|
|
|
Class<?> clazz = dbEntity.getClass(); |
|
|
|
|
Field[] fields = Util.getFields(clazz); |
|
|
|
|
if (fields != null && fields.length > 0) { |
|
|
|
|
@ -87,14 +101,12 @@ public class DbUtil { |
|
|
|
|
if (ignore != null && ignore.value()) { |
|
|
|
|
continue; |
|
|
|
|
} |
|
|
|
|
sb.append(i > 0 ? |
|
|
|
|
", " : |
|
|
|
|
""); |
|
|
|
|
sb.append(i > 0 ? ", " : ""); |
|
|
|
|
try { |
|
|
|
|
sb.append(field.getName()) |
|
|
|
|
.append(" = '") |
|
|
|
|
.append(field.get(dbEntity).toString()) |
|
|
|
|
.append("'"); |
|
|
|
|
.append(" = '") |
|
|
|
|
.append(field.get(dbEntity).toString()) |
|
|
|
|
.append("'"); |
|
|
|
|
} catch (IllegalAccessException e) { |
|
|
|
|
e.printStackTrace(); |
|
|
|
|
} |
|
|
|
|
@ -103,23 +115,28 @@ public class DbUtil { |
|
|
|
|
print(MODIFY_DATA, sb.toString()); |
|
|
|
|
mDb.execSQL(sb.toString()); |
|
|
|
|
} |
|
|
|
|
close(); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
* 遍历所有数据 |
|
|
|
|
*/ |
|
|
|
|
protected Cursor findAllData(DbEntity dbEntity) { |
|
|
|
|
protected <T extends DbEntity> List<T> findAllData(Class<T> clazz, DbEntity dbEntity) { |
|
|
|
|
mDb = mHelper.getReadableDatabase(); |
|
|
|
|
StringBuilder sb = new StringBuilder(); |
|
|
|
|
sb.append("SELECT rowid, * FROM ").append(Util.getClassName(dbEntity)); |
|
|
|
|
print(FIND_ALL_DATA, sb.toString()); |
|
|
|
|
return mDb.rawQuery(sb.toString(), null); |
|
|
|
|
Cursor cursor = mDb.rawQuery(sb.toString(), null); |
|
|
|
|
return cursor.getCount() > 0 ? newInstanceEntity(clazz, cursor) : null; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
* 条件查寻数据 |
|
|
|
|
*/ |
|
|
|
|
protected Cursor findData(DbEntity dbEntity, @NonNull Object[] wheres, |
|
|
|
|
@NonNull Object[] values) { |
|
|
|
|
protected <T extends DbEntity> List<T> findData(Class<T> clazz, DbEntity dbEntity, |
|
|
|
|
@NonNull String[] wheres, |
|
|
|
|
@NonNull String[] values) { |
|
|
|
|
mDb = mHelper.getReadableDatabase(); |
|
|
|
|
if (wheres.length <= 0 || values.length <= 0) { |
|
|
|
|
Log.e(TAG, "请输入查询条件"); |
|
|
|
|
return null; |
|
|
|
|
@ -132,19 +149,22 @@ public class DbUtil { |
|
|
|
|
int i = 0; |
|
|
|
|
for (Object where : wheres) { |
|
|
|
|
sb.append(where).append("=").append("'").append(values[i]).append("'"); |
|
|
|
|
sb.append(i >= wheres.length - 1 ? |
|
|
|
|
"" : |
|
|
|
|
", "); |
|
|
|
|
sb.append(i >= wheres.length - 1 ? "" : ", "); |
|
|
|
|
i++; |
|
|
|
|
} |
|
|
|
|
print(FIND_DATA, sb.toString()); |
|
|
|
|
return mDb.rawQuery(sb.toString(), null); |
|
|
|
|
Cursor cursor = mDb.rawQuery(sb.toString(), null); |
|
|
|
|
return cursor.getCount() > 0 ? newInstanceEntity(clazz, cursor) : null; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
* 插入数据 |
|
|
|
|
*/ |
|
|
|
|
protected void insertData(DbEntity dbEntity) { |
|
|
|
|
mDb = mHelper.getWritableDatabase(); |
|
|
|
|
if (!tableExists(dbEntity)) { |
|
|
|
|
createTable(dbEntity); |
|
|
|
|
} |
|
|
|
|
Class<?> clazz = dbEntity.getClass(); |
|
|
|
|
Field[] fields = Util.getFields(clazz); |
|
|
|
|
if (fields != null && fields.length > 0) { |
|
|
|
|
@ -157,9 +177,7 @@ public class DbUtil { |
|
|
|
|
if (ignore != null && ignore.value()) { |
|
|
|
|
continue; |
|
|
|
|
} |
|
|
|
|
sb.append(i > 0 ? |
|
|
|
|
", " : |
|
|
|
|
""); |
|
|
|
|
sb.append(i > 0 ? ", " : ""); |
|
|
|
|
sb.append(field.getName()); |
|
|
|
|
i++; |
|
|
|
|
} |
|
|
|
|
@ -171,9 +189,7 @@ public class DbUtil { |
|
|
|
|
if (ignore != null && ignore.value()) { |
|
|
|
|
continue; |
|
|
|
|
} |
|
|
|
|
sb.append(i > 0 ? |
|
|
|
|
", " : |
|
|
|
|
""); |
|
|
|
|
sb.append(i > 0 ? ", " : ""); |
|
|
|
|
sb.append("'"); |
|
|
|
|
try { |
|
|
|
|
sb.append(field.get(dbEntity)).append("'"); |
|
|
|
|
@ -186,12 +202,13 @@ public class DbUtil { |
|
|
|
|
print(INSERT_DATA, sb.toString()); |
|
|
|
|
mDb.execSQL(sb.toString()); |
|
|
|
|
} |
|
|
|
|
close(); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
* 查找某张表是否存在 |
|
|
|
|
*/ |
|
|
|
|
protected boolean tableExists(DbEntity dbEntity) { |
|
|
|
|
public boolean tableExists(DbEntity dbEntity) { |
|
|
|
|
Cursor cursor = null; |
|
|
|
|
try { |
|
|
|
|
StringBuilder sb = new StringBuilder(); |
|
|
|
|
@ -217,19 +234,15 @@ public class DbUtil { |
|
|
|
|
/** |
|
|
|
|
* 创建表 |
|
|
|
|
*/ |
|
|
|
|
protected void createTable(DbEntity dbEntity) { |
|
|
|
|
private void createTable(DbEntity dbEntity) { |
|
|
|
|
Field[] fields = Util.getFields(dbEntity.getClass()); |
|
|
|
|
if (fields != null && fields.length > 0) { |
|
|
|
|
StringBuilder sb = new StringBuilder(); |
|
|
|
|
sb.append("create table ").append(Util.getClassName(dbEntity)).append("("); |
|
|
|
|
int i = 0; |
|
|
|
|
int ignoreNum = 0; |
|
|
|
|
for (Field field : fields) { |
|
|
|
|
i++; |
|
|
|
|
field.setAccessible(true); |
|
|
|
|
Ignore ignore = field.getAnnotation(Ignore.class); |
|
|
|
|
if (ignore != null && ignore.value()) { |
|
|
|
|
ignoreNum++; |
|
|
|
|
continue; |
|
|
|
|
} |
|
|
|
|
sb.append(field.getName()); |
|
|
|
|
@ -251,13 +264,12 @@ public class DbUtil { |
|
|
|
|
} else { |
|
|
|
|
sb.append(" blob"); |
|
|
|
|
} |
|
|
|
|
sb.append(i >= fields.length - ignoreNum - 1 ? |
|
|
|
|
"" : |
|
|
|
|
", "); |
|
|
|
|
sb.append(","); |
|
|
|
|
} |
|
|
|
|
sb.append(");"); |
|
|
|
|
print(CREATE_TABLE, sb.toString()); |
|
|
|
|
mDb.execSQL(sb.toString()); |
|
|
|
|
String str = sb.toString(); |
|
|
|
|
str = str.substring(0, str.length() - 1) + ");"; |
|
|
|
|
print(CREATE_TABLE, str); |
|
|
|
|
mDb.execSQL(str); |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
@ -294,25 +306,34 @@ public class DbUtil { |
|
|
|
|
/** |
|
|
|
|
* 关闭数据库 |
|
|
|
|
*/ |
|
|
|
|
protected void close() { |
|
|
|
|
private void close() { |
|
|
|
|
if (mDb != null) { |
|
|
|
|
mDb.close(); |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
* 获取所有行Id |
|
|
|
|
* 获取所在行Id |
|
|
|
|
*/ |
|
|
|
|
protected Cursor getRowId(DbEntity dbEntity) { |
|
|
|
|
StringBuilder sb = new StringBuilder(); |
|
|
|
|
sb.append("SELECT rowid, * FROM ").append(Util.getClassName(dbEntity)); |
|
|
|
|
return mDb.rawQuery(sb.toString(), null); |
|
|
|
|
protected int[] getRowId(DbEntity dbEntity) { |
|
|
|
|
mDb = mHelper.getReadableDatabase(); |
|
|
|
|
Cursor cursor = mDb.rawQuery("SELECT rowid, * FROM " + Util.getClassName(dbEntity), null); |
|
|
|
|
int[] ids = new int[cursor.getCount()]; |
|
|
|
|
int i = 0; |
|
|
|
|
while (cursor.moveToNext()) { |
|
|
|
|
ids[i] = cursor.getInt(cursor.getColumnIndex("rowid")); |
|
|
|
|
i++; |
|
|
|
|
} |
|
|
|
|
cursor.close(); |
|
|
|
|
close(); |
|
|
|
|
return ids; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
* 获取行Id |
|
|
|
|
*/ |
|
|
|
|
protected int getRowId(DbEntity dbEntity, Object[] wheres, Object[] values) { |
|
|
|
|
mDb = mHelper.getReadableDatabase(); |
|
|
|
|
if (wheres.length <= 0 || values.length <= 0) { |
|
|
|
|
Log.e(TAG, "请输入删除条件"); |
|
|
|
|
return -1; |
|
|
|
|
@ -325,15 +346,66 @@ public class DbUtil { |
|
|
|
|
int i = 0; |
|
|
|
|
for (Object where : wheres) { |
|
|
|
|
sb.append(where).append("=").append("'").append(values[i]).append("'"); |
|
|
|
|
sb.append(i >= wheres.length - 1 ? |
|
|
|
|
"" : |
|
|
|
|
","); |
|
|
|
|
sb.append(i >= wheres.length - 1 ? "" : ","); |
|
|
|
|
i++; |
|
|
|
|
} |
|
|
|
|
print(ROW_ID, sb.toString()); |
|
|
|
|
Cursor c = mDb.rawQuery(sb.toString(), null); |
|
|
|
|
int id = c.getColumnIndex("rowid"); |
|
|
|
|
c.close(); |
|
|
|
|
close(); |
|
|
|
|
return id; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
* 根据数据游标创建一个具体的对象 |
|
|
|
|
*/ |
|
|
|
|
private <T extends DbEntity> List<T> newInstanceEntity(Class<T> clazz, Cursor cursor) { |
|
|
|
|
Field[] fields = Util.getFields(clazz); |
|
|
|
|
List<T> entitys = new ArrayList<>(); |
|
|
|
|
if (fields != null && fields.length > 0) { |
|
|
|
|
try { |
|
|
|
|
while (cursor.moveToNext()) { |
|
|
|
|
T entity = clazz.newInstance(); |
|
|
|
|
for (Field field : fields) { |
|
|
|
|
field.setAccessible(true); |
|
|
|
|
Ignore ignore = field.getAnnotation(Ignore.class); |
|
|
|
|
if (ignore != null && ignore.value()) { |
|
|
|
|
continue; |
|
|
|
|
} |
|
|
|
|
Class<?> type = field.getType(); |
|
|
|
|
int column = cursor.getColumnIndex(field.getName()); |
|
|
|
|
if (type == String.class) { |
|
|
|
|
field.set(entity, cursor.getString(column)); |
|
|
|
|
} else if (type == int.class || type == Integer.class) { |
|
|
|
|
field.setInt(entity, cursor.getInt(column)); |
|
|
|
|
} else if (type == float.class || type == Float.class) { |
|
|
|
|
field.setFloat(entity, cursor.getFloat(column)); |
|
|
|
|
} else if (type == double.class || type == Double.class) { |
|
|
|
|
field.setDouble(entity, cursor.getDouble(column)); |
|
|
|
|
} else if (type == long.class || type == Long.class) { |
|
|
|
|
field.setLong(entity, cursor.getLong(column)); |
|
|
|
|
} else if (type == boolean.class || type == Boolean.class) { |
|
|
|
|
field.setBoolean(entity, |
|
|
|
|
!cursor.getString(column).equalsIgnoreCase("false")); |
|
|
|
|
} else if (type == java.util.Date.class || type == java.sql.Date.class) { |
|
|
|
|
field.set(entity, new Date(cursor.getString(column))); |
|
|
|
|
} else if (type == byte[].class) { |
|
|
|
|
field.set(entity, cursor.getBlob(column)); |
|
|
|
|
} |
|
|
|
|
// field.set(entity, cursor.getColumnIndex("entity_id"));
|
|
|
|
|
} |
|
|
|
|
entity.rowID = cursor.getInt(cursor.getColumnIndex("rowid")); |
|
|
|
|
entitys.add(entity); |
|
|
|
|
} |
|
|
|
|
} catch (InstantiationException e) { |
|
|
|
|
e.printStackTrace(); |
|
|
|
|
} catch (IllegalAccessException e) { |
|
|
|
|
e.printStackTrace(); |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
cursor.close(); |
|
|
|
|
close(); |
|
|
|
|
return entitys; |
|
|
|
|
} |
|
|
|
|
} |
lyy
8 years ago