请问各位大神， sqlite数据库磁盘映像格式不正确，怎么恢复数据库文件？
org.sqlite.SQLiteException: [SQLITE_CORRUPT]  The database disk image is malformed (database disk image is malformed)
    at org.sqlite.core.DB.newSQLException(DB.java:909)
    at org.sqlite.core.DB.newSQLException(DB.java:921)
    at org.sqlite.core.DB.throwex(DB.java:886)
    at org.sqlite.core.NativeDB.prepare_utf8(Native Method)
    at org.sqlite.core.NativeDB.prepare(NativeDB.java:127)
    at org.sqlite.core.DB.prepare(DB.java:227)
    at org.sqlite.core.CorePreparedStatement.<init>(CorePreparedStatement.java:41)
    at org.sqlite.jdbc3.JDBC3PreparedStatement.<init>(JDBC3PreparedStatement.java:30)
    at org.sqlite.jdbc4.JDBC4PreparedStatement.<init>(JDBC4PreparedStatement.java:19)
    at org.sqlite.jdbc4.JDBC4Connection.prepareStatement(JDBC4Connection.java:48)
    at org.sqlite.jdbc3.JDBC3Connection.prepareStatement(JDBC3Connection.java:263)
    at org.sqlite.jdbc3.JDBC3Connection.prepareStatement(JDBC3Connection.java:235)
    at com.xz.dao.OperatDB.getServer(OperatDB.java:178)
    at com.xz.ui.Main.<init>(Main.java:376)
    at com.xz.ui.Main.main(Main.java:405)