你是用的HttpClient版本是多少？不通版本下設置超時有些差異，已為HttpClient 4.5例：

CloseableHttpClient httpclient = HttpClients.createDefault();  
HttpGet httpGet = new HttpGet("http://stackoverflow.com/");  
RequestConfig requestConfig = RequestConfig.custom()  
        .setConnectTimeout(5000).setConnectionRequestTimeout(1000)  
        .setSocketTimeout(5000).build();  
httpGet.setConfig(requestConfig);  
CloseableHttpResponse response = httpclient.execute(httpGet);  
System.out.println("得到的結果:" + response.getStatusLine());//得到請求結果  
HttpEntity entity = response.getEntity();//得到請求回來的數(shù)據(jù)

推薦你使用HttpClient配合使用Fluent-API：
https://hc.apache.org/httpcom...
設置超時:

// Execute a GET/POST with timeout settings and return response content as String.
Request.Get("http://somehost/")
        .connectTimeout(1000)
        .socketTimeout(1000)
        .execute().returnContent().asString();