java HttpsPost CloseableHttpClient

最新推荐文章于 2024-11-25 14:24:58 发布

转载最新推荐文章于 2024-11-25 14:24:58 发布 · 591 阅读

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原文链接：https://my.oschina.net/u/4121470/blog/3070274

文章标签：

#java #json

本文详细介绍了如何使用Java进行HTTP Post请求，包括JSON和x-www-form-urlencoded两种格式的数据发送方式，提供了具体的代码实现，并展示了如何处理响应。

//请求json
public static String HttpsPost(String url, Map<String, Object> param) throws Exception{
    String respContent ="";
    String restServiceURL = url;
    System.out.println(restServiceURL);

    CloseableHttpClient client = HttpClients.createDefault();
    //设置传入参数
    StringEntity entity = new StringEntity(JSONObject.toJSONString(param), "utf-8");
    HttpPost httpGet = new HttpPost(restServiceURL);
    httpGet.addHeader("Content-Type","application/json;charset=UTF-8");
    httpGet.setEntity(entity);
    HttpResponse resp = client.execute(httpGet);
    int statusCode = resp.getStatusLine().getStatusCode();
    if ( 200==statusCode ) {
        HttpEntity he = resp.getEntity();
        respContent = EntityUtils.toString(he, "utf-8");
    }else {
        log.error("请求第三方异常，状态码{}，地址{}",statusCode,url);
    }

    return respContent;

}

/**
 * http请求 application/x-www-form-urlencoded
 */
public static String HttpsPostXw(String url, Map<String, String> param) throws Exception{
    String respContent ="";
    String restServiceURL = url;

    CloseableHttpClient client = HttpClients.createDefault();
    //设置传入参数
    HttpPost httpGet = new HttpPost(restServiceURL);
    httpGet.setHeader("Content-type", "application/x-www-form-urlencoded");
    List<NameValuePair> nvps = new ArrayList<NameValuePair>();
    if(param!=null){
        for (Map.Entry<String, String> entry : param.entrySet()) {
            nvps.add(new BasicNameValuePair(entry.getKey(), entry.getValue()));
        }
    }
    //设置参数到请求对象中
    httpGet.setEntity(new UrlEncodedFormEntity(nvps, "utf-8"));

    //装填参数
    if(param!=null){
        for (Map.Entry<String, String> entry : param.entrySet()) {
            httpGet.setHeader(entry.getKey(),entry.getValue());
        }
    }
    HttpResponse resp = client.execute(httpGet);
    int statusCode = resp.getStatusLine().getStatusCode();
    if ( 200==statusCode ) {
        HttpEntity he = resp.getEntity();
        respContent = EntityUtils.toString(he, "utf-8");
    }else {
        log.error("请求第三方异常，状态码{}，地址{}",statusCode,url);
    }

    return respContent;

}

转载于:https://my.oschina.net/u/4121470/blog/3070274