Question

@app.route('/select/<username>')
def select(username):

    db = MySQLdb.connect("localhost","myusername","mypassword","mydbname" )

    cursor = db.cursor()

    cursor.execute("SELECT * FROM p_shahr")

    data = cursor.fetchall()

    db.close()

    return render_template('select.html', data=data)

我想在此脚本中编辑选择查询以便

SELECT * FROm p_shahr WHERE os = username

我应如何编辑查询以包含上面的 where子句，以便将os设置为来自网址的username？

Answer 1

在查询中使用占位符，并将参数作为元组传递给execute。

@app.route('/select/<username>')
def select(username):

    db = MySQLdb.connect("localhost","myusername","mypassword","mydbname" )

    cursor = db.cursor()

    query_string = "SELECT * FROM p_shahr WHERE os = %s"
    cursor.execute(query_string, (username,))

    data = cursor.fetchall()

    db.close()

    return render_template('select.html', data=data)

（flask）python - mysql - 在带有来自URL的变量的select查询中使用where子句

1 个答案: