問題描述

這是我的更新代碼

def alter(self,id,key,value):session = Goods().getsession()session.query(Goods).filter(Goods.id==id).update({key:value})session.close()

但是會報(bào)錯(cuò)

UnicodeEncodeError: ’latin-1’ codec can’t encode characters in position 0-1: ordinal not in range(256)

最新查錯(cuò)。打印如下

print type(id),type(key),type(value)

<type ’unicode’> <type ’unicode’> <type ’unicode’>127.0.0.1 - - [31/Mar/2017 06:32:05] 'GET /alter?id=1497&key=name&value=%E8%8D%A3%E8%80%80V9+%E6%89%8B%E6%9C%BA+%E9%93%82%E5%85%89%E9%87%91+%E5%85%A8%E7%BD%91%E9%80%9A4G(4G+RAM%2B64G+ROM)%E6%A0%87%E9%85%8D HTTP/1.1' 200 -

初步發(fā)現(xiàn)問題所在 數(shù)據(jù)庫為latin1編碼

然后封裝json的時(shí)候UnicodeDecodeError: ’utf8’ codec can’t decode bytes in position 90-91: unexpected end of data

代碼

def get(self):

session = Goods().getsession() goodslist = session.query(Goods) session.close() data = [] for goods in goodslist:tmp = {}tmp[’id’] = goods.idtmp[’name’] = goods.name //這里報(bào)錯(cuò)根源 帶空格tmp[’link’] = goods.linktmp[’price’] = goods.pricetmp[’commit’] = goods.commitdata.append(tmp) jsondata = json.dumps(data) //這里報(bào)錯(cuò)

問題解答

沒怎么寫過，但是猜測一下

1. 確認(rèn)你的key和value都不為None2. 更新不用commit么

明顯是數(shù)據(jù)庫字符集設(shè)置有問題，請?jiān)O(shè)置數(shù)據(jù)庫字符集為UTF-8

如果不想設(shè)置數(shù)據(jù)庫，就解碼待插入的數(shù)據(jù) info_str.encode(’你的格式’)再插入