java - Update query doesn't update the table -

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निम्नलिखित विधि के साथ मैं update नामक एक कॉलम accesstoken । इसमें कोई अपवाद नहीं है, कोई त्रुटि नहीं है, लेकिन तालिका का स्तंभ अद्यतन नहीं मिलता है। क्या कारण हो सकता है ? क्या मैं कुछ छोड़ रहा हूं? 

  सार्वजनिक शून्य अपडेटएवसेटटोकन (इंट आईडी, स्ट्रिंग एक्सेसटोकन) {सत्र सत्र = नया एचवीआर ()। GetSession (); System.out.println ("आईडी: - & gt;" + आईडी); स्ट्रिंग एचक्यूएल = "UPCATE UCred सेट एक्सेसटोकन = '" + एक्सेसटोकन + "'" + "WHERE id = '" + id + "'"; क्वेरी क्वेरी = session.createQuery (hql); query.executeUpdate (); session.close (); } पकड़ (अपवाद एक्स) {exc.printStackTrace (); }}

नोट: शुरू में accesstoken शून्य पर सेट है।

यदि आप अपना स्वयं का लेन-देन प्रबंधित करते हैं (अर्थात वसंत, जेटीए जैसे कंटेनरों द्वारा प्रबंधित नहीं), तो आपको लेनदेन को शुरू और समाप्त करना होगा। 

  session.getTransaction () का उपयोग करना शुरू करें ();

और 

  session.getTransaction ()। Commit ();

फिर आपका कोड ऐसा होगा, 

  सार्वजनिक शून्य अपडेटएवसेटटोकन (आईआईटी, स्ट्रिंग एक्सेसटोकन) {सत्र सत्र = नया एचवीआर () का प्रयास करें। getSession (); session.getTransaction () शुरू ()।; System.out.println ("आईडी: - & gt;" + आईडी); स्ट्रिंग एचक्यूएल = "UPCATE UCred सेट एक्सेसटोकन = '" + एक्सेसटोकन + "'" + "WHERE id = '" + id + "'"; क्वेरी क्वेरी = session.createQuery (hql); query.executeUpdate (); session.getTransaction () के लिए प्रतिबद्ध ()।; session.close (); } पकड़ (अपवाद एक्स) {exc.printStackTrace (); }}

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