Java - httpclient

最新推荐文章于 2024-08-04 10:00:00 发布

nier6088

最新推荐文章于 2024-08-04 10:00:00 发布

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CC 4.0 BY-SA版权

本文链接：https://blog.youkuaiyun.com/qq_35779815/article/details/82882685

本文通过示例代码展示了如何使用Java的HttpClient库发送GET和POST请求。GET请求用于从百度搜索“马士兵”的结果页面获取数据，而POST请求则模拟了一个登录过程。

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get方式


    CloseableHttpClient client = HttpClients.createDefault();
        
        URIBuilder uriBuilder = new URIBuilder("http://www.baidu.com/s");
        
        uriBuilder.addParameter("wd", "马士兵");
        
        
    
        
        HttpGet get = new HttpGet(uriBuilder.build());
        
        
        CloseableHttpResponse response = client.execute(get);
        
        HttpEntity httpEntity = response.getEntity();
        
        String string = EntityUtils.toString(httpEntity, "utf-8");
        
        System.out.println(string);
        
    }

post方式


CloseableHttpClient client = HttpClients.createDefault();
        
        
        HttpPost httpPost = new HttpPost("http://localhost/login");
        
        List<NameValuePair> list = new ArrayList<NameValuePair>();
        
        
        list.add(new BasicNameValuePair("username", "admin"));
        
        list.add(new BasicNameValuePair("password", "123451"));
        
        StringEntity strEntity = new UrlEncodedFormEntity(list,"utf-8");
        
        httpPost.setEntity(strEntity);
        
        CloseableHttpResponse response = client.execute(httpPost);
        
        String str = EntityUtils.toString(response.getEntity(),"utf-8");
        
        System.out.println(str);
        
        response.close();
        
        client.close();