发送请求的工具类HttpUtils

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原创最新推荐文章于 2026-03-18 01:46:17 发布 748 阅读 AI 写同款· GEO 优化 ›
java 基于httpclient的工具类 HttpUtils 【代码】java 基于httpclient的工具类 HttpUtils。阅读详情
package com.yxb.common.base.util;

import com.yxb.common.base.entity.WorthResponse;
import net.sf.json.JSONObject;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.xml.transform.Result;
import java.io.*;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.Map;

public class HttpUtils {

    private static Logger logger = LoggerFactory.getLogger(HttpUtils.class);

    public static JSONObject doGetJSON(String httpUrl){
        String result = doGet(httpUrl);
        return JSONObject.fromObject(result);
    }

    public static JSONObject doPostJSON(String httpUrl,String param){
        return doPostJSON(httpUrl, null, param);
    }

    public static JSONObject doPostJSON(String httpUrl,Map<String,String> headerMap, String param){
        String result = doPost(httpUrl, headerMap, param);
        return JSONObject.fromObject(result);
    }


    public static String doGet(String httpurl) {
        HttpURLConnection connection = null;
        InputStream is = null;
        BufferedReader br = null;
        String result = null;// 返回结果字符串
        try {
            // 创建远程url连接对象
            URL url = new URL(httpurl);
            // 通过远程url连接对象打开一个连接，强转成httpURLConnection类
            connection = (HttpURLConnection) url.openConnection();
            // 设置连接方式：get
            connection.setRequestMethod("GET");
            // 设置连接主机服务器的超时时间：15000毫秒
            connection.setConnectTimeout(15000);
            // 设置读取远程返回的数据时间：60000毫秒
            connection.setReadTimeout(60000);
            // 发送请求
            connection.connect();
            // 通过connection连接，获取输入流
            if (connection.getResponseCode() == 200) {
                is = connection.getInputStream();
                // 封装输入流is，并指定字符集
                br = new BufferedReader(new InputStreamReader(is, "UTF-8"));
                // 存放数据
                StringBuffer sbf = new StringBuffer();
                String temp = null;
                while ((temp = br.readLine()) != null) {
                    sbf.append(temp);
                    sbf.append("\r\n");
                }
                result = sbf.toString();
            }
        } catch (MalformedURLException e) {
            logger.error("异常信息:{}",e);
        } catch (Exception e) {
            logger.error("错误信息:{}", e);
        } finally {
            // 关闭资源
            if (null != br) {
                try {
                    br.close();
                } catch (IOException e) {
                    logger.error("错误信息:{}", e);
                }
            }
            if (null != is) {
                try {
                    is.close();
                } catch (IOException e) {
                    logger.error("错误信息:{}", e);
                }
            }
            connection.disconnect();// 关闭远程连接
        }
        return result;
    }

    public static String doPost(String httpUrl, String param){
        return doPost(httpUrl, null, param);
    }

    public static String doPost(String httpUrl, Map<String,String> headerMap, String param) {
        HttpURLConnection connection = null;
        InputStream is = null;
        OutputStream os = null;
        BufferedReader br = null;
        String result = null;
        try {
            URL url = new URL(httpUrl);
            // 通过远程url连接对象打开连接
            connection = (HttpURLConnection) url.openConnection();
            // 设置连接请求方式
            connection.setRequestMethod("POST");
            // 设置连接主机服务器超时时间：15000毫秒
            connection.setConnectTimeout(15000);
            // 设置读取主机服务器返回数据超时时间：60000毫秒
            connection.setReadTimeout(60000);
            // 默认值为：false，当向远程服务器传送数据/写数据时，需要设置为true
            connection.setDoOutput(true);
            // 默认值为：true，当前向远程服务读取数据时，设置为true，该参数可有可无
            connection.setDoInput(true);
            // 设置传入参数的格式:请求参数应该是 name1=value1&name2=value2 的形式。
            connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded; charset=UTF-8");
            if(headerMap != null && headerMap.size() > 0){
                for(String key:headerMap.keySet()){
                    connection.setRequestProperty(key, headerMap.get(key));
                }
            }
            // 通过连接对象获取一个输出流
            os = connection.getOutputStream();
            // 通过输出流对象将参数写出去/传输出去,它是通过字节数组写出的
            os.write(param.getBytes());
            // 通过连接对象获取一个输入流，向远程读取
            if (connection.getResponseCode() == 200) {
                is = connection.getInputStream();
                // 对输入流对象进行包装:charset根据工作项目组的要求来设置
                br = new BufferedReader(new InputStreamReader(is, "UTF-8"));

                StringBuffer sbf = new StringBuffer();
                String temp = null;
                // 循环遍历一行一行读取数据
                while ((temp = br.readLine()) != null) {
                    sbf.append(temp);
                    sbf.append("\r\n");
                }
                result = sbf.toString();
            }
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            // 关闭资源
            if (null != br) {
                try {
                    br.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            if (null != os) {
                try {
                    os.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            if (null != is) {
                try {
                    is.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            // 断开与远程地址url的连接
            connection.disconnect();
        }
        return result;
    }

    public static WorthResponse doPost(String httpUrl, String param,String... contentType) {
        HttpURLConnection connection = null;
        InputStream is = null;
        OutputStream os = null;
        BufferedReader br = null;
        String result = null;
        WorthResponse worthResponse = null;
        StringBuilder sb = new StringBuilder();
        try {
            URL url = new URL(httpUrl);
            // 通过远程url连接对象打开连接
            connection = (HttpURLConnection) url.openConnection();
            // 设置连接请求方式
            connection.setRequestMethod("POST");
            // 设置连接主机服务器超时时间：15000毫秒
            connection.setConnectTimeout(30000);
            // 设置读取主机服务器返回数据超时时间：60000毫秒
            connection.setReadTimeout(60000);

            // 默认值为：false，当向远程服务器传送数据/写数据时，需要设置为true
            connection.setDoOutput(true);
            // 默认值为：true，当前向远程服务读取数据时，设置为true，该参数可有可无
            connection.setDoInput(true);
            // 设置传入参数的格式:请求参数应该是 name1=value1&name2=value2 的形式。
//            connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
            connection.setRequestProperty("Content-Type", contentType.length< 1 ? "application/x-www-form-urlencoded" : contentType[0]);
            // 设置鉴权信息：Authorization: Bearer da3efcbf-0845-4fe3-8aba-ee040be542c0
            connection.setRequestProperty("Authorization", "Bearer da3efcbf-0845-4fe3-8aba-ee040be542c0");
            // 通过连接对象获取一个输出流
            os = connection.getOutputStream();
            // 通过输出流对象将参数写出去/传输出去,它是通过字节数组写出的
            os.write(param.getBytes());

            //根据responseCode来获取输入流，此处错误响应码的响应体内容也要获取（看服务端的返回结果形式决定）
            if (HttpURLConnection.HTTP_OK == connection.getResponseCode()) {
                is = connection.getInputStream();
            } else {
                is = connection.getErrorStream();
            }

            br = new BufferedReader(new InputStreamReader(is, "UTF-8"));
            String line = null;
            while ((line = br.readLine()) != null) {
                sb.append(line);
                sb.append("\r\n");
            }
            br.close();

            worthResponse = new WorthResponse();
            worthResponse.setCode(connection.getResponseCode());
            worthResponse.setContentType(connection.getContentType());
            worthResponse.setResult(sb.toString());
        } catch (MalformedURLException e) {
            e.printStackTrace();
            logger.error("错误信息:{}", e);
        } catch (IOException e) {
            e.printStackTrace();
            logger.error("错误信息:{}", e);
        }finally {
            // 关闭资源
            if (null != br) {
                try {
                    br.close();
                } catch (IOException e) {
                    logger.error("错误信息:{}", e);
                }
            }
            if (null != os) {
                try {
                    os.close();
                } catch (IOException e) {
                    logger.error("错误信息:{}", e);
                }
            }
            if (null != is) {
                try {
                    is.close();
                } catch (IOException e) {
                    logger.error("错误信息:{}", e);
                }
            }
            // 断开与远程地址url的连接
            connection.disconnect();
        }
        return worthResponse;
    }

}
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