小编luo*_*anh的帖子

我在Oracle中遇到了关于我的数据库的问题,当我打开我的数据库时,它显示一条消息:"ORA-28001:密码已过期"

我已经更新了我的帐户:

sqlplus /nolog
SQL> connect / as SYSDBA
Connected.

SQL> SELECT username, account_status FROM dba_users WHERE ACCOUNT_STATUS LIKE '%EXPIRED%';

SQL> ALTER USER system IDENTIFIED BY system;         
User altered.

SQL> ALTER USER system ACCOUNT UNLOCK;
User altered.

SQL> ALTER PROFILE DEFAULT LIMIT PASSWORD_LIFE_TIME UNLIMITED;
Profile altered.

SQL> exit

我查看并查看,我的帐户:'system'已打开,但我在Oracle SQL Developer上打开它,它仍然有警报:

ORA-28001: The password has expired

我已经提到了非常多的链接,但它仍然是同样的问题,如何解决这个问题？

我正在使用 GridView 加载保存图像的 json 数据。当我构建项目时发生了一些例外

AndroidManifest.xml：

<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

文件缓存类：

public class FileCache {

private File cacheDir;

public FileCache(Context context) {
    // Find the dir to save cached images
    if (android.os.Environment.getExternalStorageState().equals(
            android.os.Environment.MEDIA_MOUNTED))
        cacheDir = new File(
                android.os.Environment.getExternalStorageDirectory(),
                "JsonParseTutorialCache");
    else
        cacheDir = context.getCacheDir();
    if (!cacheDir.exists())
        cacheDir.mkdirs();
}

public File getFile(String url) throws IOException {
    String filename = String.valueOf(url.hashCode());
    // String filename = URLEncoder.encode(url);
    File f = new File(cacheDir, filename);
    f.createNewFile();
    return f;
}

public void clear() {
    File[] …

我得到结果json并在android中解析。消息发生了异常：org.json.JSONException：价格没有值

W/System.err: org.json.JSONException: No value for price
W/System.err:     at org.json.JSONObject.get(JSONObject.java:389)
W/System.err:     at org.json.JSONObject.getString(JSONObject.java:550)

我的java课

JSONParser jsonParser = new JSONParser();

// tracks JSONArray
JSONArray albums = null;

// Album id
String album_id = null;
String song_id = null;

String album_name, song_name, price;

// single song JSON url
// GET parameters album, song
private static final String URL_SONG = "my url";


// ALL JSON node names
private static final String TAG_NAME = "name";
private static final String TAG_PRICE = "price";
private static …