HttpClient Post Example

最新推荐文章于 2024-08-06 17:13:24 发布

陳約翰

最新推荐文章于 2024-08-06 17:13:24 发布

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分类专栏： JAVA

本文链接：https://blog.youkuaiyun.com/melittletoo/article/details/82287816

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本文介绍了一个使用SpringMVC框架处理HTTP GET和POST请求的基本示例。通过示例代码展示了如何定义控制器来响应不同的HTTP请求，并演示了如何发送POST请求并接收参数的过程。此外还介绍了如何使用HttpClient发起HTTP请求并获取响应内容。

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@RequestMapping(value = "/", method = RequestMethod.GET)
String get() {
    return "Hello from get";
}

@RequestMapping(value = "/post", method = RequestMethod.POST)
String post(HttpServletRequest req, HttpServletResponse resp) {
    Map<String, String[]> m = req.getParameterMap();


    return "Hello from post";
}

public static void main(String[] args) throws Exception {
    CloseableHttpClient client = HttpClients.createDefault();
    HttpPost httpPost = new HttpPost("http://localhost:8080/testweb/post");
    httpPost.setHeader("Content-type", "application/x-www-form-urlencoded");

    Map<String,String> map = new HashMap<>();
    map.put("yonghu","tony");
    map.put("mima","25");

    List<NameValuePair> nvps = new ArrayList<NameValuePair>();

    if(map != null){
        for (Map.Entry<String, String> entry : map.entrySet()) {
            nvps.add(new BasicNameValuePair(entry.getKey(), entry.getValue()));
        }
    }

    httpPost.setEntity(new UrlEncodedFormEntity(nvps, "utf-8"));
    CloseableHttpResponse response = client.execute(httpPost);
    HttpEntity entity = response.getEntity();
    String respContent = EntityUtils.toString(entity,"UTF-8");
}