回答此问题可获得 20 贡献值,回答如果被采纳可获得 50 分。
<p>我正在解析json数据,并试图将一些json数据存储到Mysql数据库中。我目前正在跟踪unicode错误。我的问题是我该怎么处理。</p>
<ul>
<li>我应该从数据库的角度来处理它,如果是的话,我应该如何修改表来处理它?</li>
<li>我应该从python端处理它吗?</li>
</ul>
<p>这是我的桌子结构</p>
<pre><code>CREATE TABLE yahoo_questions (
question_id varchar(40) NOT NULL,
question_subj varbinary(255),
question_content varbinary(255),
question_userId varchar(40) NOT NULL,
question_timestamp varchar(40),
category_id varbinary(20) NOT NULL,
category_name varchar(40) NOT NULL,
choosen_answer varbinary(255),
choosen_userId varchar(40),
choosen_usernick varchar(40),
choosen_ans_timestamp varchar(40),
UNIQUE (question_id)
);
</code></pre>
<p>通过python代码插入时出错:</p>
<pre><code>Traceback (most recent call last):
File "YahooQueryData.py", line 78, in <module>
+"VALUES (%s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s)", (row[2], row[5], row[6], quserId, questionTime, categoryId, categoryName, qChosenAnswer, choosenUserId, choosenNickName, choosenTimeStamp))
File "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/MySQLdb/cursors.py", line 159, in execute
query = query % db.literal(args)
File "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/MySQLdb/connections.py", line 264, in literal
return self.escape(o, self.encoders)
File "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/MySQLdb/connections.py", line 202, in unicode_literal
return db.literal(u.encode(unicode_literal.charset))
UnicodeEncodeError: 'latin-1' codec can't encode characters in position 204-230: ordinal not in range(256)
</code></pre>
<p>Python代码段:</p>
<pre><code> #pushing user id to the url to get full json stack
urlobject = urllib.urlopen(base_url.format(row[2]))
qnadatajson = urlobject.read()
data = json.loads(qnadatajson)
cur.execute("INSERT INTO yahoo_questions (question_id, question_subj, question_content, question_userId, question_timestamp,"
+"category_id, category_name, choosen_answer, choosen_userId, choosen_usernick, choosen_ans_timestamp)"
+"VALUES (%s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s)", (row[2], row[5], row[6], quserId, questionTime, categoryId, categoryName, qChosenAnswer, choosenUserId, choosenNickName, choosenTimeStamp))
</code></pre>
<p>json结构</p>
<pre><code>questions: [
{
Id: "20111201185322AA5HTDc",
Subject: "what are the new pokemon call?",
Content: "I used to know them I stop at dialga and palkia version and I heard there's new ones what's it call
",
Date: "2011-12-01 18:53:22",
Timestamp: "1322794402",
</code></pre>
<p>在运行查询之前,我还对<code>mysql SET character_set_client = utf8</code>执行了以下操作</p>
<p>mysql变量看起来是这样的:</p>
<pre><code>mysql> SHOW variables LIKE '%character_set%';
+--------------------------+--------------------------------------------------------+
| Variable_name | Value |
+--------------------------+--------------------------------------------------------+
| character_set_client | utf8 |
| character_set_connection | utf8 |
| character_set_database | latin1 |
| character_set_filesystem | binary |
| character_set_results | utf8 |
| character_set_server | latin1 |
| character_set_system | utf8 |
| character_sets_dir | /usr/local/mysql-5.5.10-osx10.6-x86_64/share/charsets/ |
+--------------------------+--------------------------------------------------------+
8 rows in set (0.00 sec)
</code></pre>