httpClient 发送 get psot请求

最新推荐文章于 2022-07-20 15:12:08 发布

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最新推荐文章于 2022-07-20 15:12:08 发布

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本文链接：https://blog.youkuaiyun.com/m0_37958655/article/details/117536767

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1.导入maven依赖（版本号自选）

<dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpclient</artifactId>
        </dependency>

2.程序代码

    void doGet() throws IOException, URISyntaxException {
        HttpClientBuilder httpClientBuilder =  HttpClientBuilder.create();
        CloseableHttpClient build = httpClientBuilder.build();

        URIBuilder uriBuilder = new URIBuilder("http://www.baidu.com");

        Map<String,Object> map = new HashMap<>();
        map.put("id",1);

        if(map!=null){
            for (Map.Entry<String,Object> entry:map.entrySet()){
                uriBuilder.setParameter(entry.getKey(),entry.getValue().toString());
            }
        }
        System.out.println(uriBuilder.build().toString());
        HttpGet httpGet = new HttpGet(uriBuilder.build().toString());
        CloseableHttpResponse execute = build.execute(httpGet);
  if(execute.getStatusLine().getStatusCode() == 200){
            String s = EntityUtils.toString(execute.getEntity(), "UTF-8");
            System.out.println(s);
        }
  

    }
   
    void doPost() throws IOException {
        CloseableHttpClient httpClientBuilder = HttpClients.createDefault();
        HttpPost httpPost = new HttpPost("http://www.baidu.com");
        Map<String,Object> map = new HashMap<>();
        map.put("id",1);
        List<NameValuePair> list = new ArrayList<>();

        if(map!=null){
            for (Map.Entry<String,Object> entry:map.entrySet()){
                list.add(new BasicNameValuePair(entry.getKey(),entry.getValue().toString()));
            }
        }
        if(list.size()>0){
            UrlEncodedFormEntity urlEncodedFormEntity = new UrlEncodedFormEntity(list, "utf-8");
            httpPost.setEntity(urlEncodedFormEntity);
        }
        CloseableHttpResponse execute = httpClientBuilder.execute(httpPost);
        String s = EntityUtils.toString(execute.getEntity(), "UTF-8");

        System.out.println(s);

    }