Question

当我从HttpPost使用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”标题时，它工作正常，但我需要授权。这是一个代码（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“login：password”，如：“YnxpcYRlc3RwMTulHGhlSGs =”，但这并不重要。

当在纯java上调用上面的代码时，这是一段lighttpd的error.log：

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记录（IP已更改）：

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，我会在日志中得到它：

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

的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)"

如何使用POST在android上进行授权？当我使用HttpURLConnection而不是HttpClient时，没有区别。

Answer 1

感谢Samuh提示:) 插入了一个额外的换行符，它在GET请求中没有任何意义，但在POST中却很重要。这是在android中生成Authorization标头的正确方法（在本例中为getB64Auth）：

 private String getB64Auth (String login, String pass) {
   String source=login+":"+pass;
   String ret="Basic "+Base64.encodeToString(source.getBytes(),Base64.URL_SAFE|Base64.NO_WRAP);
   return ret;
 }

缺少Base64.NO_WRAP标志。

Answer 2

简单地使用：

String authorizationString = "Basic " + Base64.encodeToString(
                        ("your_login" + ":" + "your_password").getBytes(),
                        Base64.NO_WRAP); //Base64.NO_WRAP flag
                post.setHeader("Authorization", authorizationString);

在Android上授权的HTTP POST请求

2 个答案: