還好，網(wǎng)上弄到的，，沒(méi)有dual的數(shù)據(jù)庫(kù)，可以試圖用select函數(shù)不帶from數(shù)據(jù)表的方式來(lái)實(shí)現(xiàn)返回值。

一段測(cè)試代碼：

?

try:conn = psycopg2.connect(database=db.service_name, user=db.username, password=password, host=db.ip, port=db.port)cursor = conn.cursor()except Exception, e:context_dict = {'msg': e, 'address': db.ip, 'port': db.port}return render(request, 'sar/release_info.html', context_dict)sql = "SELECT 'OK' AS txt"try:cursor.execute(sql)x = cursor.fetchone()[0]except Exception,e:context_dict = {'msg': "密碼認(rèn)證通過(guò)，但SELECT功能出錯(cuò)", 'address': db.ip, 'port': db.port}return render(request, 'sar/release_info.html', context_dict)finally:cursor.close()conn.close()if x == 'OK':context_dict = {'msg': "數(shù)據(jù)庫(kù)連接正常", 'sql': sql, 'address': db.ip, 'port': db.port }return render(request, 'sar/release_info.html', context_dict)

轉(zhuǎn)載于:https://www.cnblogs.com/aguncn/p/5787024.html

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