Question

我正在使用HTTPClient发出网络请求。在linux部分中，使用以下命令将状态返回为OK。 java中的相同内容是返回未经授权的状态代码401。

来自linux的命令：

curl -X GET -ik -H 'Accept: application/json' --user test:test http://api.uat.testapi.com

要访问它，我使用的java代码如下：

 HttpHost targetHost = new HttpHost("http://api.uat.testapi.com/");                 
            DefaultHttpClient httpclient = new DefaultHttpClient();         
            httpclient.getCredentialsProvider().setCredentials( new AuthScope(targetHost.getHostName(), targetHost.getPort()), 
                    new UsernamePasswordCredentials("test","test"));
            HttpGet httppost = new HttpGet("http://api.uat.testapi.com/");
            httppost.addHeader("Accept","application/json");            
            HttpResponse response = httpclient.execute(httppost);           
            System.out.println("status>>>>"+response.getStatusLine());

我的回复为：HTTP/1.1 401 Unauthorized。

任何解决这个问题的指针都会有所帮助

提前致谢。

Answer 1

我认为你需要设置HttpState来使用身份验证。使用

httpClient.getParams().setAuthenticationPreemptive(true);

做同样的事。

Answer 2

看起来你正在用curl和一个带HttpClient的POST请求发出GET请求;我怀疑服务器没有接受POST请求。

您是否需要使用HttpGet：

HttpGet method = new HttpGet("http://api.uat.testapi.com");
...
HttpResponse response = httpclient.execute(method);

希望有帮助...

Answer 3

try below code :

HttpURLConnection connection = (HttpURLConnection) new URL("url").openConnection();

connection.setDoOutput(true);
connection.setDoInput(true);
connection.setRequestMethod("GET");
connection.setRequestProperty("Accept", "application/json");
connection.setRequestProperty("Authorization", "Basic "+
            new sun.misc.BASE64Encoder().encode( "username:password".getBytes() ));

System.out.println("status>>>>"+connection.getResponseCode());

Answer 4

尝试使用以下代码....根据您的设置exe url等进行更改

 DefaultHttpClient httpclient = new DefaultHttpClient();
    try {
        httpclient.getCredentialsProvider().setCredentials(
                new AuthScope(AuthScope.ANY_HOST, AuthScope.ANY_PORT),
                new UsernamePasswordCredentials("username", "password"));

        HttpGet httpget = new HttpGet("YOURURL");

        System.out.println("executing request" + httpget.getRequestLine());
        HttpResponse response = httpclient.execute(httpget);
        HttpEntity entity = response.getEntity();

        System.out.println("----------------------------------------");
        System.out.println(response.getStatusLine());
        if (entity != null) {
            System.out.println("Response content length: " + entity.getContentLength());
        }
        EntityUtils.consume(entity);
    }
catch(Exception e)
{
e.printStackTrace();
}
 finally {
        // When HttpClient instance is no longer needed,
        // shut down the connection manager to ensure
        // immediate deallocation of all system resources
        httpclient.getConnectionManager().shutdown();
    }

无法发出HttpClient请求

4 个答案: