你能帮我解读这个相当深奥的错误吗？当我启动应用程序时，一切都很好，但在我尝试login时崩溃。
/ login /
中的DatabaseError类型inet的输入语法无效：＆＃34;＆＃34;第1行：... 00101 Firefox / 41.0＆＃39;， ＆＃39; 2015-12-12 09：39：55.590036 + 00:00＆＃39;，＆＃39;＆＃39;）
例外位置： /home/mhb11/.virtualenvs/redditpk/local/lib/python2.7/site-packages/django/db/backends/postgresql_psycopg2/base.py 在执行中，第54行
我知道inet data type接受IPv4和IPv6主机和网络（但不接受域名）这一事实。
回溯如下：
Traceback:
File "/home/mhb11/.virtualenvs/redditpk/local/lib/python2.7/site-packages/django/core/handlers/base.py" in get_response
187. response = middleware_method(request, response)
File "/home/mhb11/.virtualenvs/redditpk/local/lib/python2.7/site-packages/user_sessions/middleware.py" in process_response
46. request.session.save()
File "/home/mhb11/.virtualenvs/redditpk/local/lib/python2.7/site-packages/user_sessions/backends/db.py" in save
86. obj.save(force_insert=must_create, using=using)
File "/home/mhb11/.virtualenvs/redditpk/local/lib/python2.7/site-packages/django/db/models/base.py" in save
546. force_update=force_update, update_fields=update_fields)
File "/home/mhb11/.virtualenvs/redditpk/local/lib/python2.7/site-packages/django/db/models/base.py" in save_base
650. result = manager._insert([self], fields=fields, return_id=update_pk, using=using, raw=raw)
File "/home/mhb11/.virtualenvs/redditpk/local/lib/python2.7/site-packages/django/db/models/manager.py" in _insert
215. return insert_query(self.model, objs, fields, **kwargs)
File "/home/mhb11/.virtualenvs/redditpk/local/lib/python2.7/site-packages/django/db/models/query.py" in insert_query
1661. return query.get_compiler(using=using).execute_sql(return_id)
File "/home/mhb11/.virtualenvs/redditpk/local/lib/python2.7/site-packages/django/db/models/sql/compiler.py" in execute_sql
937. cursor.execute(sql, params)
File "/home/mhb11/.virtualenvs/redditpk/local/lib/python2.7/site-packages/django/db/backends/util.py" in execute
41. return self.cursor.execute(sql, params)
File "/home/mhb11/.virtualenvs/redditpk/local/lib/python2.7/site-packages/django/db/backends/postgresql_psycopg2/base.py" in execute
58. six.reraise(utils.DatabaseError, utils.DatabaseError(*tuple(e.args)), sys.exc_info()[2])
File "/home/mhb11/.virtualenvs/redditpk/local/lib/python2.7/site-packages/django/db/backends/postgresql_psycopg2/base.py" in execute
54. return self.cursor.execute(query, args)
Exception Type: DatabaseError at /login/
Exception Value: invalid input syntax for type inet: ""
LINE 1: ...00101 Firefox/41.0', '2015-12-12 09:39:55.590036+00:00', '')
urls.py中的 / login / 网址为url(r'^login/$', 'django.contrib.auth.views.login', {'template_name': 'login.html'}, name="login"),
环境是：
使用 postgresql后端Django 1.5.1 并驻留在Ubuntu 14.04计算机上。特别要注意的是，在我将 nginx设置为gunicorn背后的反向代理（使用端口80进行此设置）后，此错误开始出现。当我在端口8080上使用 gunicorn（和女服务员，另一个纯python web服务器）时，事情完全。
的/ etc / nginx的/位点可用/ myproject的：
server {
listen 80;
server_name example.cloudapp.net;
location = /favicon.ico { access_log off; log_not_found off; }
location /static/ {
root /home/mhb11/folder/myproject;
}
location / {
include proxy_params;
proxy_pass http://unix:/home/mhb11/folder/myproject/myproject.sock;
}
error_page 500 502 503 504 /500.html;
location = /500.html {
root /home/mhb11/folder/myproject/templates/;
}
}
的/ etc / nginx的/ proxy_params：
proxy_set_header Host $http_host;
proxy_set_header User-Agent $http_user_agent;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
/etc/nginx/nginx.conf：
user www-data;
worker_processes 4;
pid /run/nginx.pid;
env ON_AZURE=1;
env awsaccesskeyid=something;
env awssecretkey=something;
events {
worker_connections 1024;
multi_accept on;
use epoll;
}
http {
##
# Basic Settings
##
sendfile on;
tcp_nopush on;
tcp_nodelay on;
keepalive_timeout 65;
types_hash_max_size 2048;
# server_tokens off;
# server_names_hash_bucket_size 64;
include /etc/nginx/mime.types;
default_type application/octet-stream;
##
# Logging Settings
##
access_log /var/log/nginx/access.log;
error_log /var/log/nginx/error.log;
##
# Gzip Settings
##
gzip on;
gzip_disable "msie6";
# gzip_vary on;
# gzip_proxied any;
# gzip_comp_level 6;
# gzip_buffers 16 8k;
# gzip_http_version 1.1;
# gzip_types text/plain text/css application/json application/x-javascript text/xml application/xml application/xml+rss text/javascrip$
##
# nginx-naxsi config
##
# Uncomment it if you installed nginx-naxsi
##
#include /etc/nginx/naxsi_core.rules;
##
# nginx-passenger config
##
# Uncomment it if you installed nginx-passenger
##
#passenger_root /usr;
#passenger_ruby /usr/bin/ruby;
##
# Virtual Host Configs
##
include /etc/nginx/conf.d/*.conf;
include /etc/nginx/sites-enabled/*;
}
#mail {
# # See sample authentication script at:
# # http://wiki.nginx.org/ImapAuthenticateWithApachePhpScript
#
# # auth_http localhost/auth.php;
# # pop3_capabilities "TOP" "USER";
# # imap_capabilities "IMAP4rev1" "UIDPLUS";
#
# server {
# listen localhost:110;
# protocol pop3;
# proxy on;
# }
#
# server {
# listen localhost:143;
# protocol imap;
# proxy on;
# }
#}
发生了什么？
注意：如果您需要，请向我询问更多信息，例如：我的gunicorn.conf和nginx.conf看起来如何，安装包或者你需要db相关的东西。只要问一下！
答案 0 :(得分：4)
您没有转发代理IP。这是我在nginx配置中设置的转发标头集：
location / {
proxy_set_header Host $http_host;
proxy_set_header User-Agent $http_user_agent;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
proxy_pass ......;
}
nginx文档中的更多选项 - http://nginx.org/en/docs/http/ngx_http_proxy_module.html#proxy_set_header
然后在Django中你可以做到：
user_ip = request.META['HTTP_X_REAL_IP`] or request.META['REMOTE_ADDR']
注意在使用带有SSL的Django时需要X-Forwarded-Proto，在这种情况下，您还需要稍微配置Django：
SECURE_PROXY_SSL_HEADER = ('HTTP_X_FORWARDED_PROTO', 'https')
更多关于Django文档 - https://docs.djangoproject.com/en/1.9/ref/settings/#std:setting-SECURE_PROXY_SSL_HEADER
答案 1 :(得分：0)
您的程序正在尝试向具有空远程IP的日志记录表添加行。我想当你使用反向代理时，程序不知道远程IP，因为它被代理的IP遮蔽了。
因为它是空的我认为该程序试图忽略代理的IP，但它找不到任何更好的。它应该使用X-Forwarded-For标题。
如果没有合理的IP来记录，程序应该只记录“NULL”作为IP。
答案 2 :(得分：0)
添加自定义中间件即可解决该问题：
import random
vokabeln = {
"Haus": "house",
"Garten": "garden",
"Freund": "friend",
"Freundin": "friend"
}
versuche = int(input("Anzahl der Versuche: "))
i=0
while i < versuche:
x = random.choice(list(vokabeln))
y = vokabeln.get(x)
i+=1
versuch = input("Übersetze " + x)
if(versuch == y):
print("Korrekt!")
else:
print("Falsch, richtig war " + y)