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@ -21,6 +21,7 @@ import android.content.Context; |
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import android.database.Cursor; |
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import android.database.sqlite.SQLiteDatabase; |
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import android.support.annotation.NonNull; |
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import android.text.TextUtils; |
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import android.util.Log; |
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import com.arialyy.aria.util.CheckUtil; |
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import com.arialyy.aria.util.CommonUtil; |
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@ -37,12 +38,12 @@ public class DbUtil { |
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private static final String TAG = "DbUtil"; |
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private static final Object LOCK = new Object(); |
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private volatile static DbUtil INSTANCE = null; |
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private int CREATE_TABLE = 0; |
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private int TABLE_EXISTS = 1; |
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private int INSERT_DATA = 2; |
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private int MODIFY_DATA = 3; |
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private int FIND_DATA = 4; |
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private int FIND_ALL_DATA = 5; |
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private static final int CREATE_TABLE = 0; |
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private static final int TABLE_EXISTS = 1; |
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private static final int INSERT_DATA = 2; |
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private static final int MODIFY_DATA = 3; |
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private static final int FIND_DATA = 4; |
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private static final int FIND_ALL_DATA = 5; |
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private int DEL_DATA = 6; |
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private int ROW_ID = 7; |
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private SQLiteDatabase mDb; |
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@ -53,6 +54,11 @@ public class DbUtil { |
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} |
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private DbUtil(Context context) { |
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//mHelper = new SqlHelper(context.getApplicationContext(), new SqlHelper.UpgradeListener() {
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// @Override public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
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//
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// }
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//});
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mHelper = new SqlHelper(context.getApplicationContext()); |
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} |
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@ -136,9 +142,10 @@ public class DbUtil { |
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} |
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sb.append(i > 0 ? ", " : ""); |
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try { |
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Object value = field.get(dbEntity); |
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sb.append(field.getName()) |
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.append("='") |
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.append(field.get(dbEntity).toString()) |
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.append(value == null ? "" : value.toString()) |
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.append("'"); |
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} catch (IllegalAccessException e) { |
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e.printStackTrace(); |
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@ -156,15 +163,24 @@ public class DbUtil { |
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* 遍历所有数据 |
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*/ |
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synchronized <T extends DbEntity> List<T> findAllData(Class<T> clazz) { |
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if (!tableExists(clazz)) { |
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createTable(clazz); |
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if (mDb == null || !mDb.isOpen()) { |
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mDb = mHelper.getReadableDatabase(); |
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} |
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return findAllData(mDb, clazz); |
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} |
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/** |
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* 遍历所有数据 |
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*/ |
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static synchronized <T extends DbEntity> List<T> findAllData(SQLiteDatabase db, Class<T> clazz) { |
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if (!tableExists(db, clazz)) { |
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createTable(db, clazz, null); |
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} |
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mDb = mHelper.getReadableDatabase(); |
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StringBuilder sb = new StringBuilder(); |
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sb.append("SELECT rowid, * FROM ").append(CommonUtil.getClassName(clazz)); |
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print(FIND_ALL_DATA, sb.toString()); |
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Cursor cursor = mDb.rawQuery(sb.toString(), null); |
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return cursor.getCount() > 0 ? newInstanceEntity(clazz, cursor) : null; |
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Cursor cursor = db.rawQuery(sb.toString(), null); |
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return cursor.getCount() > 0 ? newInstanceEntity(db, clazz, cursor) : null; |
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} |
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/** |
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@ -186,7 +202,7 @@ public class DbUtil { |
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sql = String.format(sql, params); |
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print(FIND_DATA, sql); |
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Cursor cursor = mDb.rawQuery(sql, null); |
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return cursor.getCount() > 0 ? newInstanceEntity(clazz, cursor) : null; |
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return cursor.getCount() > 0 ? newInstanceEntity(mDb, clazz, cursor) : null; |
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} |
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/** |
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@ -215,18 +231,17 @@ public class DbUtil { |
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} |
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print(FIND_DATA, sb.toString()); |
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Cursor cursor = mDb.rawQuery(sb.toString(), null); |
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return cursor.getCount() > 0 ? newInstanceEntity(clazz, cursor) : null; |
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return cursor.getCount() > 0 ? newInstanceEntity(mDb, clazz, cursor) : null; |
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} |
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/** |
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* 插入数据 |
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*/ |
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synchronized void insertData(DbEntity dbEntity) { |
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static synchronized void insertData(SQLiteDatabase db, DbEntity dbEntity) { |
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Class<?> clazz = dbEntity.getClass(); |
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if (!tableExists(clazz)) { |
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createTable(clazz); |
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if (!tableExists(db, clazz)) { |
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createTable(db, clazz, null); |
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} |
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mDb = mHelper.getWritableDatabase(); |
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Field[] fields = CommonUtil.getFields(clazz); |
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if (fields != null && fields.length > 0) { |
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StringBuilder sb = new StringBuilder(); |
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@ -259,8 +274,18 @@ public class DbUtil { |
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} |
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sb.append(")"); |
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print(INSERT_DATA, sb.toString()); |
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mDb.execSQL(sb.toString()); |
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db.execSQL(sb.toString()); |
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} |
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} |
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/** |
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* 插入数据 |
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*/ |
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synchronized void insertData(DbEntity dbEntity) { |
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if (mDb == null || !mDb.isOpen()) { |
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mDb = mHelper.getReadableDatabase(); |
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} |
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insertData(mDb, dbEntity); |
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close(); |
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} |
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@ -271,6 +296,10 @@ public class DbUtil { |
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if (mDb == null || !mDb.isOpen()) { |
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mDb = mHelper.getReadableDatabase(); |
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} |
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return tableExists(mDb, clazz); |
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} |
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static synchronized boolean tableExists(SQLiteDatabase db, Class clazz) { |
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Cursor cursor = null; |
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try { |
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StringBuilder sb = new StringBuilder(); |
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@ -278,7 +307,7 @@ public class DbUtil { |
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sb.append(CommonUtil.getClassName(clazz)); |
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sb.append("'"); |
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print(TABLE_EXISTS, sb.toString()); |
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cursor = mDb.rawQuery(sb.toString(), null); |
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cursor = db.rawQuery(sb.toString(), null); |
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if (cursor != null && cursor.moveToNext()) { |
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int count = cursor.getInt(0); |
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if (count > 0) { |
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@ -289,22 +318,20 @@ public class DbUtil { |
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e.printStackTrace(); |
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} finally { |
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if (cursor != null) cursor.close(); |
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close(); |
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if (db != null) { |
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db.close(); |
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} |
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} |
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return false; |
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} |
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/** |
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* 创建表 |
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*/ |
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private synchronized void createTable(Class clazz) { |
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if (mDb == null || !mDb.isOpen()) { |
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mDb = mHelper.getWritableDatabase(); |
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} |
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static synchronized void createTable(SQLiteDatabase db, Class clazz, String tableName) { |
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Field[] fields = CommonUtil.getFields(clazz); |
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if (fields != null && fields.length > 0) { |
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StringBuilder sb = new StringBuilder(); |
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sb.append("create table ").append(CommonUtil.getClassName(clazz)).append("("); |
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sb.append("create table ") |
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.append(TextUtils.isEmpty(tableName) ? CommonUtil.getClassName(clazz) : tableName) |
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.append("("); |
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for (Field field : fields) { |
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field.setAccessible(true); |
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if (ignoreField(field)) { |
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@ -336,15 +363,31 @@ public class DbUtil { |
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String str = sb.toString(); |
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str = str.substring(0, str.length() - 1) + ");"; |
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print(CREATE_TABLE, str); |
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mDb.execSQL(str); |
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db.execSQL(str); |
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} |
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if (db != null) { |
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db.close(); |
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} |
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close(); |
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} |
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synchronized void createTable(Class clazz, String tableName) { |
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if (mDb == null || !mDb.isOpen()) { |
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mDb = mHelper.getWritableDatabase(); |
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} |
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createTable(mDb, clazz, tableName); |
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} |
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/** |
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* 创建表 |
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*/ |
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private synchronized void createTable(Class clazz) { |
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createTable(clazz, null); |
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} |
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/** |
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* @return true 忽略该字段 |
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*/ |
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private boolean ignoreField(Field field) { |
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static boolean ignoreField(Field field) { |
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// field.isSynthetic(), 使用as热启动App时，AS会自动给你的clss添加change字段
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Ignore ignore = field.getAnnotation(Ignore.class); |
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return (ignore != null && ignore.value()) || field.isSynthetic(); |
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@ -355,28 +398,28 @@ public class DbUtil { |
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* |
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* @param type {@link DbUtil} |
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*/ |
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private void print(int type, String sql) { |
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private static void print(int type, String sql) { |
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if (true) { |
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return; |
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} |
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String str = ""; |
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switch (type) { |
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case 0: |
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case CREATE_TABLE: |
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str = "创建表 >>>> "; |
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break; |
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case 1: |
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case TABLE_EXISTS: |
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str = "表是否存在 >>>> "; |
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break; |
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case 2: |
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case INSERT_DATA: |
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str = "插入数据 >>>> "; |
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break; |
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case 3: |
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case MODIFY_DATA: |
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str = "修改数据 >>>> "; |
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break; |
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case 4: |
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case FIND_DATA: |
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str = "查询一行数据 >>>> "; |
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break; |
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case 5: |
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case FIND_ALL_DATA: |
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str = "遍历整个数据库 >>>> "; |
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break; |
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} |
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@ -440,8 +483,8 @@ public class DbUtil { |
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/** |
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* 根据数据游标创建一个具体的对象 |
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*/ |
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private synchronized <T extends DbEntity> List<T> newInstanceEntity(Class<T> clazz, |
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Cursor cursor) { |
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private static synchronized <T extends DbEntity> List<T> newInstanceEntity(SQLiteDatabase db, |
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Class<T> clazz, Cursor cursor) { |
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Field[] fields = CommonUtil.getFields(clazz); |
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List<T> entitys = new ArrayList<>(); |
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if (fields != null && fields.length > 0) { |
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@ -486,7 +529,10 @@ public class DbUtil { |
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} |
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} |
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cursor.close(); |
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close(); |
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//close();
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if (db != null) { |
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db.close(); |
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} |
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return entitys; |
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} |
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} |
AriaLyy
8 years ago
