使用HttpUtils完成Http Basic 认证

调用声网(agora)的远程接口(Restful Api)时，对方需要使用Basic Auth的方式进行认证(需要输入用户名和密码)。

一，使用Postman完成基于Basic Auth的Http认证方式

二，在代码中如何调用呢?

1.当我们使用HttpUtil工具类模拟浏览器调用时，需要在header设置Authorization属性

创建Http Get请求时,设置header。修改HttpUtil工具类中的Get方法，添加如下代码：

　　　　　　  // 创建http GET请求
　　　　　　　//修改前：
            //HttpGet httpGet = new HttpGet(uri); 
　　　　　　　//---------------------------------------
　　　　　　　//修改后：
　　　　　　　　
            HttpGet httpGet = new HttpGet(uri);
            List<NameValuePair> params = new ArrayList<NameValuePair>();
            if(param==null){
                params=null;
            }
            RequestBuilder requestBuilder = RequestBuilder.get().setUri(new URI(url));
            requestBuilder.setEntity(new UrlEncodedFormEntity(params, Consts.UTF_8));
            httpGet.setHeader(
                    new BasicHeader("Content-Type", param.get("Content-Type")));
            httpGet.setHeader(new BasicHeader("Accept", "text/plain;charset=utf-8"));
            httpGet.setHeader("Authorization",param.get("Authorization"));

2.完整HttpUtil工具类：

package com.yishang.utils;

import org.apache.http.Consts;
import org.apache.http.NameValuePair;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.methods.RequestBuilder;
import org.apache.http.client.utils.URIBuilder;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.message.BasicHeader;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;

import java.io.IOException;
import java.net.URI;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;

public class HttpUtils {

    public static String doGet(String url, Map<String, String> param) {

        // 创建Httpclient对象
        CloseableHttpClient httpclient = HttpClients.createDefault();

        String resultString = "";
        CloseableHttpResponse response = null;
        try {
            // 创建uri
            URIBuilder builder = new URIBuilder(url);
            if (param != null) {
                for (String key : param.keySet()) {
                    builder.addParameter(key, param.get(key));
                }
            }
            URI uri = builder.build();

            // 创建http GET请求
            //HttpGet httpGet = new HttpGet(uri);

            HttpGet httpGet = new HttpGet(uri);
            List<NameValuePair> params = new ArrayList<NameValuePair>();
            if(param==null){
                params=null;
            }
            RequestBuilder requestBuilder = RequestBuilder.get().setUri(new URI(url));
            requestBuilder.setEntity(new UrlEncodedFormEntity(params, Consts.UTF_8));
            httpGet.setHeader(
                    new BasicHeader("Content-Type", param.get("Content-Type")));
            httpGet.setHeader(new BasicHeader("Accept", "text/plain;charset=utf-8"));
            httpGet.setHeader("Authorization",param.get("Authorization"));



            // 执行请求
            response = httpclient.execute(httpGet);
            // 判断返回状态是否为200
            if (response.getStatusLine().getStatusCode() == 200) {
                resultString = EntityUtils.toString(response.getEntity(), "UTF-8");
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            try {
                if (response != null) {
                    response.close();
                }
                httpclient.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return resultString;
    }

    public static String doGet(String url) {
        return doGet(url, null);
    }

    public static String doPost(String url, Map<String, String> param) {
        // 创建Httpclient对象
        CloseableHttpClient httpClient = HttpClients.createDefault();
        CloseableHttpResponse response = null;
        String resultString = "";
        try {
            // 创建Http Post请求
            HttpPost httpPost = new HttpPost(url);
            // 创建参数列表
            if (param != null) {
                List<NameValuePair> paramList = new ArrayList<>();
                for (String key : param.keySet()) {
                    paramList.add(new BasicNameValuePair(key, param.get(key)));
                }
                // 模拟表单
                UrlEncodedFormEntity entity = new UrlEncodedFormEntity(paramList);
                httpPost.setEntity(entity);
            }
            // 执行http请求
            response = httpClient.execute(httpPost);
            resultString = EntityUtils.toString(response.getEntity(), "utf-8");
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            try {
                response.close();
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }

        return resultString;
    }

    public static String doPost(String url) {
        return doPost(url, null);
    }
}

3.使用HttpUtil的Get方法调用声网的Restful Api：

    /*
    http的 basic Auth认证方式
    */
    String username = "yourusername";
    String password = "yourpassword";
    String userMsg = username + ":" + password;
    String base64UserMsg = Base64.encodeBase64String(userMsg.getBytes());

    String authorization="Basic "+base64UserMsg;
    String content_type = "application/x-www-form-urlencoded";
    Map<String,String> params = new HashMap<String, String>();
    params.put("Authorization", authorization);
    params.put("Content-Type", content_type);

    String url = "http://api.agora.io/dev/v1/projects";
    String resultProjects = HttpUtils.doGet(url,params);    

标签：Http,String,HttpUtils,Basic,http,param,import,apache,new
来源： https://www.cnblogs.com/inspred/p/10621645.html