HttpClient如何解决302重定向问题

时间：2022-02-06 21:52:25

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);

    }

}

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