Android 上带授权的 HTTP POST 请求
当我使用 HttpPost 中的 setHeader 设置“Authorization”标头时,主机名从请求中消失,并且始终返回错误 400(错误请求)。相同的代码在纯java(没有android)上工作正常,当我在android上删除设置“Authorization”标头时,它工作正常,但我需要授权。 这是代码(域已更改):
HttpClient client = new DefaultHttpClient();
HttpPost post = new HttpPost("http://myhost.com/test.php");
post.setHeader("Accept", "application/json");
post.setHeader("User-Agent", "Apache-HttpClient/4.1 (java 1.5)");
post.setHeader("Host", "myhost.com");
post.setHeader("Authorization",getB64Auth());
List <NameValuePair> nvps = new ArrayList <NameValuePair>();
nvps.add(new BasicNameValuePair("data[body]", "test"));
AbstractHttpEntity ent=new UrlEncodedFormEntity(nvps, HTTP.UTF_8);
ent.setContentType("application/x-www-form-urlencoded; charset=UTF-8");
ent.setContentEncoding("UTF-8");
post.setEntity(ent);
post.setURI(new URI("http://myhost.com/test.php"));
HttpResponse response =client.execute(post);
方法 getB64Auth() 返回使用 Base64 编码的“登录名:密码”,例如:“YnxpcYRlc3RwMTulHGhlSGs=”但这并不重要。
这是lighttpd的一段error.log,当上面的代码在纯java上调用时:
2011-02-23 15:37:36: (request.c.304) fd: 8 request-len: 308
POST /test.php HTTP/1.1
Accept: application/json
User-Agent: Apache-HttpClient/4.1 (java 1.5)
Host: myhost.com
Authorization: Basic YnxpcYRlc3RwMTulHGhlSGs=
Content-Length: 21
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
Content-Encoding: UTF-8
Connection: Keep-Alive
HTTP/1.1 200 OK
Content-type: text/html
Transfer-Encoding: chunked
并从access.log中记录(IP更改):
1.1.1.1 myhost.com - [23/Feb/2011:15:37:36 +0100] "POST /test.php HTTP/1.1" 200 32 "-" "Apache-HttpClient/4.1 (java 1.5)"
当在android上调用相同的代码时,我在日志中得到这个:
POST /test.php HTTP/1.1
Accept: application/json
User-Agent: Apache-HttpClient/4.1 (java 1.5)
Host: myhost.com
Authorization: Basic YnxpcYRlc3RwMTulHGhlSGs=
Content-Length: 21
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
Content-Encoding: UTF-8
Connection: Keep-Alive
Expect: 100-Continue
2011-02-23 15:45:10: (response.c.128) Response-Header:
HTTP/1.1 400 Bad Request
Content-Type: text/html
Content-Length: 349
Connection: close
access.log:
1.1.1.1 - - [23/Feb/2011:15:45:10 +0100] "POST /test.php HTTP/1.1" 400 349 "-" "Apache-HttpClient/4.1 (java 1.5)"
如何在 Android 上使用 POST 获取授权? 当我使用 HttpURLConnection 而不是 HttpClient 时,没有什么区别。
When I set "Authorization" header with setHeader from HttpPost then hostname disappears from request and there is always error 400 (bad request) returned. Same code is working fine on pure java (without android) and when I remove setting "Authorization" header also on android it works fine, but I need authorization.
This is a code (domain changed):
HttpClient client = new DefaultHttpClient();
HttpPost post = new HttpPost("http://myhost.com/test.php");
post.setHeader("Accept", "application/json");
post.setHeader("User-Agent", "Apache-HttpClient/4.1 (java 1.5)");
post.setHeader("Host", "myhost.com");
post.setHeader("Authorization",getB64Auth());
List <NameValuePair> nvps = new ArrayList <NameValuePair>();
nvps.add(new BasicNameValuePair("data[body]", "test"));
AbstractHttpEntity ent=new UrlEncodedFormEntity(nvps, HTTP.UTF_8);
ent.setContentType("application/x-www-form-urlencoded; charset=UTF-8");
ent.setContentEncoding("UTF-8");
post.setEntity(ent);
post.setURI(new URI("http://myhost.com/test.php"));
HttpResponse response =client.execute(post);
Method getB64Auth() returns "login:password" encoded using Base64 like: "YnxpcYRlc3RwMTulHGhlSGs=" but it's not important.
This is a piece of lighttpd's error.log when above code is invoked on pure java:
2011-02-23 15:37:36: (request.c.304) fd: 8 request-len: 308
POST /test.php HTTP/1.1
Accept: application/json
User-Agent: Apache-HttpClient/4.1 (java 1.5)
Host: myhost.com
Authorization: Basic YnxpcYRlc3RwMTulHGhlSGs=
Content-Length: 21
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
Content-Encoding: UTF-8
Connection: Keep-Alive
HTTP/1.1 200 OK
Content-type: text/html
Transfer-Encoding: chunked
and record from access.log (IP changed):
1.1.1.1 myhost.com - [23/Feb/2011:15:37:36 +0100] "POST /test.php HTTP/1.1" 200 32 "-" "Apache-HttpClient/4.1 (java 1.5)"
When the same code is invoked on android, I get this in logs:
POST /test.php HTTP/1.1
Accept: application/json
User-Agent: Apache-HttpClient/4.1 (java 1.5)
Host: myhost.com
Authorization: Basic YnxpcYRlc3RwMTulHGhlSGs=
Content-Length: 21
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
Content-Encoding: UTF-8
Connection: Keep-Alive
Expect: 100-Continue
2011-02-23 15:45:10: (response.c.128) Response-Header:
HTTP/1.1 400 Bad Request
Content-Type: text/html
Content-Length: 349
Connection: close
access.log:
1.1.1.1 - - [23/Feb/2011:15:45:10 +0100] "POST /test.php HTTP/1.1" 400 349 "-" "Apache-HttpClient/4.1 (java 1.5)"
How to get Authorization with POST working on android?
When I use HttpURLConnection instead of HttpClient it is no difference.
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感谢 Samuh 的提示:)
插入了一个额外的换行符,这在 GET 请求中没有任何意义,但在 POST 请求中很重要。
这是在 android 中生成授权标头的正确方法(在本例中为 getB64Auth):
缺少 Base64.NO_WRAP 标志。
Thanks to Samuh for a hint :)
There was an extra newline character inserted which has no means in GET requests, but matters in POST ones.
This is proper way to generate Authorization header in android (in getB64Auth in this case):
The Base64.NO_WRAP flag was lacking.
简单地使用这个:
use simply this :