最近的接口测试，发现接口地址报302错误，通过上网搜索，发现问题所在，解决办法是需要请求重定向后的URI。

package com.btv;import org.apache.http.Header;import org.apache.http.HttpEntity;import org.apache.http.HttpResponse;import org.apache.http.client.HttpClient;import org.apache.http.client.methods.CloseableHttpResponse;import org.apache.http.client.methods.HttpPost;import org.apache.http.entity.StringEntity;import org.apache.http.impl.client.CloseableHttpClient;import org.apache.http.impl.client.HttpClients;import org.apache.http.util.EntityUtils;/**  * @author QiaoJiafei  * @version 创建时间：2016年1月5日 上午10:17:46  * 类说明  */public class TestLogin {    public static void main(String args[]) {        try {            HttpClient client = HttpClients.createDefault();            login(client);        } catch (Exception e) {            // TODO Auto-generated catch block            e.printStackTrace();        }    }        public static void login( HttpClient client) throws Exception{            final String APPLICATION_JSON = "application/json";          final String CONTENT_TYPE_TEXT_JSON = "text/json";                            String url = "http://172.16.30.208:8092/svc/login";            String js = "{\"username\":\"13800000002\",\"password\":\"123456\"}";                  HttpPost httpPost = new HttpPost(url);               httpPost.setHeader("Content-Type", "application/json;charset=UTF-8");                StringEntity se = new StringEntity(js);        se.setContentType(CONTENT_TYPE_TEXT_JSON);        httpPost.setEntity(se);                HttpResponse response = null;                response = client.execute(httpPost);        //----------判断是否重定向开始        int code = response.getStatusLine().getStatusCode();        String newuri="";        if (code == 302) {            Header header = response.getFirstHeader("location"); // 跳转的目标地址是在 HTTP-HEAD 中的            newuri = header.getValue(); // 这就是跳转后的地址，再向这个地址发出新申请，以便得到跳转后的信息是啥。            System.out.println(newuri);            System.out.println(code);                        httpPost = new HttpPost(newuri);            httpPost.setHeader("Content-Type", "application/json;charset=UTF-8");                         se = new StringEntity(js);            se.setContentType(CONTENT_TYPE_TEXT_JSON);            httpPost.setEntity(se);            response = client.execute(httpPost);            code = response.getStatusLine().getStatusCode();            System.out.println("login"+code);        }        //------------重定向结束        HttpEntity entity = null;        entity = response.getEntity();        String s2 = EntityUtils.toString(entity, "UTF-8");        System.out.println(s2);                    }            }