Question

我在mysql中有一个简单的数据库，我尝试打印结果，但编码错误。它发生在orm模型和纯sql模式中。

使用相同的sqlalchemy conf，纯粹的使用工作和烧瓶app不。我也试过在php中进行简单的测试，它可以正常工作。

我做错了什么？

Mysql变量


mysql> SHOW VARIABLES LIKE 'character_set%'; 
    +--------------------------+----------------------------+
    | Variable_name            | Value                      |
    +--------------------------+----------------------------+
    | character_set_client     | utf8                       |
    | character_set_connection | utf8                       |
    | character_set_database   | utf8                       |
    | character_set_filesystem | binary                     |
    | character_set_results    | utf8                       |
    | character_set_server     | utf8                       |
    | character_set_system     | utf8                       |
    | character_sets_dir       | /usr/share/mysql/charsets/ |
    +--------------------------+----------------------------+

mysql> SHOW VARIABLES LIKE 'collation%'; 
    +----------------------+-----------------+
    | Variable_name        | Value           |
    +----------------------+-----------------+
    | collation_connection | utf8_general_ci |
    | collation_database   | utf8_general_ci |
    | collation_server     | utf8_general_ci |
    +----------------------+-----------------+

Mysql表

CREATE TABLE `dct_person` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `name` varchar(128) DEFAULT NULL,
   .
   .
   .
   PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8

文件test2.py - ＆gt;编码工作

#!/usr/bin/python
# -*- coding: utf-8 -*-
from sqlalchemy import create_engine
engine = create_engine('mysql://user:pass@localhost/db')
connection = engine.connect()
result = connection.execute("select name from dct_person limit 5")
for row in result:
    print "name:", row['name']
connection.close()

输出

name: María de los Ángeles Félix Santamaría Espinosa
name: Bertahasa Bertahasa Honzca
name: Teresita Jiménez

真实烧瓶应用 - ＆gt;编码失败

在config.py

中

SQLALCHEMY_DATABASE_URI = 'mysql://user:pass@localhost/db'

使用flask-script命令

#-*- coding: utf-8 -*-
"""Test db command file"""
from flask import Flask
from flask.ext.script import Command
from flask.ext.sqlalchemy import SQLAlchemy

class TestDb(Command):
    "test db"

    def run(self):
        print "recode db"
        app = Flask(__name__)
        app.config.from_object('config')
        db = SQLAlchemy(app)

        result = db.engine.execute('SELECT id,name FROM dct_person  LIMIT 5')
        for r in result:
            print r.name

输出

MarÃa de los Ãngeles FÃ©lix SantamarÃa Espinosa
Bertahasa Bertahasa Honzca
Teresita JimÃ©nez

由于

编辑：更多信息和测试

在一个文件中使用相同的conf，查询db和不同结果的方法

test.py

print "\nFlask version (FAIL)"
from flask import Flask
app = Flask(__name__)
app.config.from_object('config')
from flask.ext.sqlalchemy import SQLAlchemy
db = SQLAlchemy(app)
result = db.engine.execute('SELECT id,name FROM dct_person  LIMIT 5')
for r in result:
    print r.name


print "\nPure version with connect (OK)"
from sqlalchemy import create_engine
engine = create_engine(app.config['SQLALCHEMY_DATABASE_URI'])
connection = engine.connect()
result = connection.execute("select id,name from dct_person limit 5")
for row in result:
    print row['name']
connection.close()


print "\nPure version without connect (FAIL)"
engine = create_engine(app.config['SQLALCHEMY_DATABASE_URI'])
result = db.engine.execute("select id,name from dct_person limit 5")
for row in result:
    print row['name']

python test.py

Flask version
Jaume Mateu i Bullich
Margarita Llobera Llompart
MarÃa de los Ãngeles FÃ©lix SantamarÃa Espinosa
Bertahasa Bertahasa Honzca
Teresita JimÃ©nez

Pure version with connect
Jaume Mateu i Bullich
Margarita Llobera Llompart
María de los Ángeles Félix Santamaría Espinosa
Bertahasa Bertahasa Honzca
Teresita Jiménez

Pure version without connect
Jaume Mateu i Bullich
Margarita Llobera Llompart
MarÃa de los Ãngeles FÃ©lix SantamarÃa Espinosa
Bertahasa Bertahasa Honzca
Teresita JimÃ©nez

编辑2：其他可能的原因

如果我在每种情况下打印类型，唯一有效的案例是... wtf？我的数据库数据是否编码错误？

Flask version (FAIL)
MarÃa de los Ãngeles FÃ©lix SantamarÃa Espinosa
<type 'unicode'>

Pure version with connect (OK)
María de los Ángeles Félix Santamaría Espinosa
<type 'str'>

Pure version without connect (FAIL)
MarÃa de los Ãngeles FÃ©lix SantamarÃa Espinosa
<type 'unicode'>

Answer 1

您可以在数据库网址中try to set the charset。

SQLALCHEMY_DATABASE_URI = 'mysql://user:pass@localhost/db?charset=utf8'

请参阅SQLAlchemy documentation on MySQL, unicode section。

Answer 2

我遇到了同样的问题，但是我通过设置Flask配置属性MYSQL_DATABASE_CHARSET来解决它。

app.config['MYSQL_DATABASE_CHARSET'] = 'utf8mb4'

为此的解决方案，位于：https://stackoverflow.com/a/35659945

Answer 3

我不确定你们在说什么，但是flask_mysqldb和utf8mb4在几乎放弃之后没有显示emojjs时遇到了问题

我看了flask_mysqldb源代码，它正在使用

app.config['MYSQL_CHARSET'] = 'utf8mb4'

不是

app.config['MYSQL_DATABASE_CHARSET'] = 'utf8mb4'

所以我将应用程序配置从MYSQL_DATABASE_CHARSET更改为MYSQL_CHARSET，现在可以正常运行了

烧瓶sqlalchemy mysql编码问题

编辑：更多信息和测试

编辑2：其他可能的原因

3 个答案: