使用不加密的数据库,以避免sqlsipher在低版本崩溃问题,以及旧数据迁移

hss01248 · Oct 8, 2021 · 5ed15bd · 5ed15bd
1 parent db966ef
commit 5ed15bd
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diff --git a/accountcache/build.gradle b/accountcache/build.gradle
@@ -39,7 +39,8 @@ dependencies {
     implementation 'org.greenrobot:greendao:3.3.0'
     api "com.google.code.gson:gson:2.8.5"
     implementation "net.zetetic:android-database-sqlcipher:4.4.3"
-    implementation "androidx.sqlite:sqlite:2.0.1"
+    api "androidx.sqlite:sqlite:2.0.1"
+    api 'io.github.yuweiguocn:GreenDaoUpgradeHelper:v2.2.1'
 }
 apply plugin: 'org.greenrobot.greendao'
 greendao {

diff --git a/accountcache/src/main/java/com/hss01248/accountcache/MyDBContext.java b/accountcache/src/main/java/com/hss01248/accountcache/MyDBContext.java
@@ -72,4 +72,5 @@ public SQLiteDatabase openOrCreateDatabase(String name, int mode, SQLiteDatabase
         SQLiteDatabase result = SQLiteDatabase.openOrCreateDatabase(getDatabasePath(name), null);
         return result;
     }
+
 }
diff --git a/accountcache/src/main/java/com/hss01248/accountcache/MyDbUtil.java b/accountcache/src/main/java/com/hss01248/accountcache/MyDbUtil.java
@@ -2,14 +2,14 @@
 
 import android.app.Application;
 import android.content.Context;
-import android.database.sqlite.SQLiteDatabase;
 
 import com.hss01248.accountcache.db.DaoMaster;
 import com.hss01248.accountcache.db.DaoSession;
 import com.hss01248.accountcache.db.DebugAccountDao;
 
 import org.greenrobot.greendao.database.Database;
 
+import java.io.File;
 import java.util.List;
 
 public class MyDbUtil {
@@ -18,11 +18,36 @@ public class MyDbUtil {
      * 初始化GreenDao,直接在Application中进行初始化操作
      */
     private static void initGreenDao(Application context) {
+        //指定数据库存储路径
        Context context2 = new MyDBContext(context);
-        DaoMaster.DevOpenHelper helper = new DaoMaster.DevOpenHelper(context2, AccountCacher.dbName+"testaccount2.db");
-        Database db = helper.getEncryptedReadableDb(AccountCacher.dbName+"856yuv98");
+       //升级自动迁移数据的工具
+        DaoMaster.OpenHelper helper = new MySQLiteUpgradeOpenHelper(context2, AccountCacher.dbName+"testaccount3.db");
+        Database db = helper.getWritableDb();
+        //不再加密.以规避sqlitesipher在6.0以下版本的c层崩溃问题
         DaoMaster daoMaster = new DaoMaster(db);
         daoSession = daoMaster.newSession();
+        //兼容旧数据迁移情况
+        moveOldData(context);
+    }
+
+    private static void moveOldData(Application context) {
+        Context context2 = new MyDBContext(context);
+       File file =  context2.getDatabasePath(AccountCacher.dbName+"testaccount2.db");
+
+       if(file == null || !file.exists()){
+           return;
+       }
+        DaoMaster.DevOpenHelper helper = new DaoMaster.DevOpenHelper(context2, AccountCacher.dbName+"testaccount2.db");
+       //数据库加解密
+        Database db = helper.getEncryptedWritableDb(AccountCacher.dbName+"856yuv98");
+        DaoMaster daoMaster = new DaoMaster(db);
+        DaoSession daoSession0 = daoMaster.newSession();
+        List<DebugAccount> debugAccounts = daoSession0.getDebugAccountDao().loadAll();
+        daoSession.getDebugAccountDao().insertInTx(debugAccounts);
+        daoSession0.getDebugAccountDao().deleteAll();
+        db.close();
+        //删库跑路
+        file.delete();
     }
 
     private static DaoSession daoSession;

diff --git a/accountcache/src/main/java/com/hss01248/accountcache/MySQLiteUpgradeOpenHelper.java b/accountcache/src/main/java/com/hss01248/accountcache/MySQLiteUpgradeOpenHelper.java
@@ -0,0 +1,34 @@
+package com.hss01248.accountcache;
+
+import android.content.Context;
+import android.database.sqlite.SQLiteDatabase;
+
+import com.github.yuweiguocn.library.greendao.MigrationHelper;
+import com.hss01248.accountcache.db.DaoMaster;
+import com.hss01248.accountcache.db.DebugAccountDao;
+
+
+import org.greenrobot.greendao.database.Database;
+
+public class MySQLiteUpgradeOpenHelper extends DaoMaster.OpenHelper {
+    public MySQLiteUpgradeOpenHelper(Context context, String name) {
+        super(context, name);
+    }
+
+    public MySQLiteUpgradeOpenHelper(Context context, String name, SQLiteDatabase.CursorFactory factory) {
+        super(context, name, factory);
+    }
+    @Override
+    public void onUpgrade(Database db, int oldVersion, int newVersion) {
+        MigrationHelper.migrate(db, new MigrationHelper.ReCreateAllTableListener() {
+            @Override
+            public void onCreateAllTables(Database db, boolean ifNotExists) {
+                DaoMaster.createAllTables(db, ifNotExists);
+            }
+            @Override
+            public void onDropAllTables(Database db, boolean ifExists) {
+                DaoMaster.dropAllTables(db, ifExists);
+            }
+        }, DebugAccountDao.class);
+    }
+}