httpclient post请求方式

最新推荐文章于 2025-10-30 18:58:02 发布

转载最新推荐文章于 2025-10-30 18:58:02 发布 · 1.1k 阅读

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原文链接：https://www.cnblogs.com/zhuangwf/p/11398708.html

文章标签：

#java

本文介绍了一种使用Java进行HTTP Post请求的方法，通过HttpClient库发送Post请求到指定URL，并附带JSON格式的数据参数。文章详细展示了如何设置请求头，处理响应结果，以及异常情况如Socket超时的处理。

package com.sxchain.enterprise.controller;

import com.alibaba.fastjson.JSONObject;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.params.CoreConnectionPNames;
import org.apache.http.util.EntityUtils;

import java.net.SocketTimeoutException;
import java.nio.charset.Charset;

public class HttpClientPostUtil {


    public static void main(String[] args) {

        String str="超鸡管理员";
        String result = getResult("http://127.0.0.1:80/test2/test3", str);
        System.err.println(result);

    }

    public static String getResult(String url, String params){
        String returnValue = null;
        HttpClient httpclient = new DefaultHttpClient();
        httpclient.getParams().setParameter(CoreConnectionPNames.SO_TIMEOUT, 15000);
        try {
            HttpPost httppost = new HttpPost(url);
            httppost.addHeader("Content-type","application/json; charset=utf-8");
            httppost.setHeader("Accept", "application/json");

            StringEntity entity = new StringEntity(JSONObject.toJSONString(params), Charset.forName("UTF-8"));
            httppost.setEntity(entity);

            HttpResponse resp = httpclient.execute(httppost);
            if(resp.getStatusLine().getStatusCode() == 200) {
                HttpEntity he = resp.getEntity();
                String   respContent = EntityUtils.toString(he,"UTF-8");
                returnValue =  respContent;
            }
        }
        catch (SocketTimeoutException e) {
            e.printStackTrace();
            returnValue = "timeout";
        }catch (Exception e) {
            e.printStackTrace();
        }finally {
            // 关闭连接,释放资源
            httpclient.getConnectionManager().shutdown();
        }
        return  returnValue;
    }
}