如何用Java写一个访问URL并获取信息和状态码_urlconnection怎么获取响应状态码-优快云博客

本文链接：https://blog.youkuaiyun.com/weixin_42615105/article/details/117473550

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package com.wonders.commonweb.core.utils;

import com.expansion.postUtils.PostUtils;

import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLConnection;
import java.util.HashMap;

public class postUtils {

    public static String getUrlCode(String surl){
        String code=null;
        try {
            URL url = new URL(surl);
            URLConnection rulConnection   = url.openConnection();
            HttpURLConnection httpUrlConnection  =  (HttpURLConnection) rulConnection;
            httpUrlConnection.setConnectTimeout(300000);
            httpUrlConnection.setReadTimeout(300000);
            httpUrlConnection.connect();
            code = new Integer(httpUrlConnection.getResponseCode()).toString();
            String message = httpUrlConnection.getResponseMessage();
            System.out.println("getResponseCode code ="+ code);
            System.out.println("getResponseMessage message ="+ message);
            if(!code.startsWith("2")){
                throw new Exception("ResponseCode is not begin with 2,code="+code);
            }
            System.out.println("连接"+surl+"正常");
        }catch(Exception ex){
            System.out.println(ex.getMessage());
        }
        return code;

    }
    public static void main(String[] args) {
        String surl="https://www.baidu.com/";
        System.out.println(getUrlCode(surl));
    }
}