httpclient post请求方式

最新推荐文章于 2025-03-25 11:25:55 发布

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最新推荐文章于 2025-03-25 11:25:55 发布

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文章标签： java http

原文链接：https://blog.youkuaiyun.com/donspe/article/details/107537644

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该代码段展示了如何使用Apache HttpClient库进行POST请求，包括设置超时时间、发送JSON参数、处理响应内容等步骤。主要应用于后端或API交互场景。

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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;
    }
}