package com.ruoyi.common.utils;
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import com.alibaba.fastjson.JSON;
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import com.alibaba.fastjson.JSONObject;
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import com.github.pagehelper.util.StringUtil;
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import com.ruoyi.common.exception.HttpRequestException;
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import com.ruoyi.common.utils.http.HttpEntity;
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import com.ruoyi.common.utils.json.JsonRequestBody;
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import com.ruoyi.common.utils.json.JsonResponseBody;
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import lombok.extern.slf4j.Slf4j;
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import org.apache.commons.codec.Charsets;
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import org.apache.commons.httpclient.*;
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import org.apache.commons.httpclient.methods.EntityEnclosingMethod;
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import org.apache.commons.httpclient.methods.PostMethod;
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import org.apache.commons.httpclient.methods.RequestEntity;
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import org.apache.commons.httpclient.methods.StringRequestEntity;
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import org.apache.commons.httpclient.params.HttpClientParams;
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import org.springframework.util.Assert;
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import org.springframework.web.context.request.RequestContextHolder;
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import org.springframework.web.context.request.ServletRequestAttributes;
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import java.io.*;
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import java.net.HttpURLConnection;
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import java.net.URL;
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import java.net.URLEncoder;
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import java.nio.charset.Charset;
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import java.nio.charset.StandardCharsets;
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import java.text.SimpleDateFormat;
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import java.util.HashMap;
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import java.util.Locale;
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import java.util.Map;
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@Slf4j
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public class HttpUtil {
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protected static final int DEFAULT_STATUS_ERROR_CODE = 100001;//默认http异常状态码
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protected static final String CONTENT_TYPE = "Content-Type";
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protected static final String APPLICATION_JSON = "application/json";
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protected static final String APPLICATION_JSON_UTF8 = "application/json; charset=utf-8";
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protected static final String TEXT_XML = "text/xml";
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protected static final String TEXT_XML_UTF8 = "text/xml; charset=utf-8";
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protected static final int OK = 200;
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/**
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* 空的报文头
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*/
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protected static final Map<String, String> EMPTY_HEADERS = new HashMap<String, String>(0);
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/**
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* 编码错误
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*/
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protected static final int ENCODING_ERROR_CODE = 999997;
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/**
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* HTTP 错误: 死锁、文件过大等文件
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*/
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protected static final int HTTP_ERROR_CODE = 999996;
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/**
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* IO 错误
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*/
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protected static final int IO_ERROR_CODE = 999995;
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/**
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* 响应为null
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*/
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protected static final int RESPONSE_NULL_ERROR_CODE = 999994;
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protected static final String USER_IP_KEY = "x-remoteip";
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protected static final String TEXT_NORMAL = "application/x-www-form-urlencoded; charset=utf-8";
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protected static final HttpClient httpClient = getHttpClient();
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private static final SimpleDateFormat formatHttpData = new SimpleDateFormat("EEE, dd MMM yyyy HH:mm:ss 'GMT'", Locale.US);
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private static HttpClient getHttpClient() {
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// 此处运用连接池技术。
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MultiThreadedHttpConnectionManager manager = new MultiThreadedHttpConnectionManager();
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// 设定参数：与每个主机的最大连接数
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manager.getParams().setDefaultMaxConnectionsPerHost(100);
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// 设定参数：客户端的总连接数
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manager.getParams().setMaxTotalConnections(400);
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// 设置连接超时时间,单位：毫秒
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manager.getParams().setConnectionTimeout(30000);
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// 设置请求读取超时时间，单位：毫秒
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manager.getParams().setSoTimeout(30000);
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// 设置从连接池中获取链接时间， 单位：毫秒
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manager.getParams().setParameter(HttpClientParams.CONNECTION_MANAGER_TIMEOUT, 8000);
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// 使用连接池技术创建HttpClient对象
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HttpClient httpClient = new HttpClient(manager);
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return httpClient;
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}
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public static String postJsonRequest(String url, String request) throws HttpRequestException {
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Assert.hasLength(url, "请求url不能为空字符串。");
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EntityEnclosingMethod httpMethod = new PostMethod(url);
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httpMethod.addRequestHeader("Content-Type", "application/json; charset=UTF-8");
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setHeaderRequestId(httpMethod);
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try {
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RequestEntity entity = new StringRequestEntity(request, "application/json", "utf-8");
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httpMethod.setRequestEntity(entity);
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int resultCode = httpClient.executeMethod(httpMethod);
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InputStream inputStream = httpMethod.getResponseBodyAsStream();
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if (inputStream == null) {
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throw new HttpRequestException(RESPONSE_NULL_ERROR_CODE, "响应为null");
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}
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BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));
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StringBuffer stringBuffer = new StringBuffer();
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String str = "";
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while ((str = reader.readLine()) != null) {
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stringBuffer.append(str);
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}
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reader.close();
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String respJson = stringBuffer.toString();
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// String respJson = httpMethod.getResponseBodyAsString();
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if (resultCode == OK) {
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return respJson;
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} else {
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throw new HttpRequestException(resultCode, respJson);
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}
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} catch (UnsupportedEncodingException e) {
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throw new HttpRequestException(ENCODING_ERROR_CODE, e);
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} catch (HttpException e) {
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throw new HttpRequestException(HTTP_ERROR_CODE, e);
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} catch (IOException e) {
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throw new HttpRequestException(IO_ERROR_CODE, e);
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} finally {
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if (httpMethod != null) {
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httpMethod.releaseConnection();
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}
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}
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}
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/**
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* json的post请求
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*
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* @param url 请求url
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* @param reqEntity 请求头与请求体的封装
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* @param respBodyClass 响应体类型
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* @return 返回的响应结果
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*/
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@SuppressWarnings("unchecked")
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public static <RESPBODY> HttpEntity<RESPBODY> postJsonRequestV2(String url, HttpEntity<?> reqEntity, Class<RESPBODY> respBodyClass) {
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Assert.hasLength(url, "请求url不能为空字符串。");
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Assert.notNull(reqEntity, "请求request不能为null。");
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Assert.notNull(reqEntity.getBody(), "Post请求body不能为null。");
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EntityEnclosingMethod httpMethod = new PostMethod(url);
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//设置header信息
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Map<String, String> headers = reqEntity.getHeaders();
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//若传入报文头，则设置值
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if (headers != HttpEntity.EMPTY_HEADERS) {
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setReqHeaders(headers, httpMethod);
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}
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//设置body信息
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String reqJson = JSON.toJSONString(reqEntity.getBody());
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String charset = com.google.common.base.Charsets.UTF_8.name();
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// 发送含xml消息体的对象
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try {
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RequestEntity entity = new StringRequestEntity(reqJson, APPLICATION_JSON, charset);
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httpMethod.setRequestEntity(entity);
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// 执行请求并接收响应码
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int resultCode = httpClient.executeMethod(httpMethod);
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InputStream inputStream = httpMethod.getResponseBodyAsStream();
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if (inputStream == null) {
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throw new HttpRequestException(RESPONSE_NULL_ERROR_CODE, "响应为null");
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}
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BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream, Charset.forName("GB2312")));
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StringBuffer stringBuffer = new StringBuffer();
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String str = "";
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while ((str = reader.readLine()) != null) {
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stringBuffer.append(str);
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}
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reader.close();
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String respStr = stringBuffer.toString();
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//String respStr = httpMethod.getResponseBodyAsString();
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if (resultCode == OK) {
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//响应头
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Map<String, String> respHeaders = getRespHeaders(httpMethod);
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//响应体
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HttpEntity<RESPBODY> rep = null;
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if (isNullOrEmpty(respStr) || null == respBodyClass) {
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rep = new HttpEntity<RESPBODY>(respHeaders, null);
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// 无响应
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} else {
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if (respBodyClass != String.class) {
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RESPBODY respBody = JSON.parseObject(respStr, respBodyClass);
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rep = new HttpEntity<RESPBODY>(respHeaders, respBody);
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} else {
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rep = new HttpEntity<RESPBODY>(respHeaders, (RESPBODY) new String(respStr.getBytes("ISO8859-1"), StandardCharsets.UTF_8));
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}
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}
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return rep;
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} else if (resultCode == DEFAULT_STATUS_ERROR_CODE) {
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JSONObject model = JSON.parseObject(respStr);
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throw new HttpRequestException(model.getIntValue("code"), model.getString("msg"));
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} else {
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throw new HttpRequestException(resultCode, respStr);
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}
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} catch (UnsupportedEncodingException e) {
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throw new HttpRequestException(ENCODING_ERROR_CODE, e);
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} catch (HttpException e) {
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throw new HttpRequestException(HTTP_ERROR_CODE, e);
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} catch (IOException e) {
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throw new HttpRequestException(IO_ERROR_CODE, e);
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} finally {
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if (httpMethod != null) {
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httpMethod.releaseConnection();
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}
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}
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}
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public static <RESPBODY extends JsonResponseBody> HttpEntity<RESPBODY> postJsonRequest(String url, HttpEntity<? extends JsonRequestBody> reqEntity, Class<RESPBODY> respBodyClass) {
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Assert.hasLength(url, "请求url不能为空字符串。");
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Assert.notNull(reqEntity, "请求request不能为null。");
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Assert.notNull(reqEntity.getBody(), "Post请求body不能为null。");
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EntityEnclosingMethod httpMethod = new PostMethod(url);
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//设置header信息
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Map<String, String> headers = reqEntity.getHeaders();
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//若传入报文头，则设置值
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if (headers != HttpEntity.EMPTY_HEADERS) {
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setReqHeaders(headers, httpMethod);
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}
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//设置body信息
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String reqJson = JSON.toJSONString(reqEntity.getBody());
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String charset = Charsets.UTF_8.name();
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// 发送含xml消息体的对象
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try {
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RequestEntity entity = new StringRequestEntity(reqJson, APPLICATION_JSON, charset);
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httpMethod.setRequestEntity(entity);
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// 执行请求并接收响应码
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int resultCode = httpClient.executeMethod(httpMethod);
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InputStream inputStream = httpMethod.getResponseBodyAsStream();
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if (inputStream == null) {
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throw new HttpRequestException(RESPONSE_NULL_ERROR_CODE, "响应为null");
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}
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BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));
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StringBuffer stringBuffer = new StringBuffer();
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String str = "";
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while ((str = reader.readLine()) != null) {
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stringBuffer.append(str);
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}
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reader.close();
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String respStr = stringBuffer.toString();
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if (resultCode == OK) {
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//响应头
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Map<String, String> respHeaders = getRespHeaders(httpMethod);
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//响应体
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HttpEntity<RESPBODY> rep = null;
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if (isNullOrEmpty(respStr) || null == respBodyClass) {
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rep = new HttpEntity<RESPBODY>(respHeaders, null);
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;// 无响应
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} else {
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RESPBODY respBody = JSON.parseObject(respStr, respBodyClass);
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rep = new HttpEntity<RESPBODY>(respHeaders, respBody);
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}
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return rep;
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} else if (resultCode == DEFAULT_STATUS_ERROR_CODE) {
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JSONObject model = JSON.parseObject(respStr);
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throw new HttpRequestException(model.getIntValue("code"), model.getString("msg"));
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} else {
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throw new HttpRequestException(resultCode, respStr);
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}
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} catch (UnsupportedEncodingException e) {
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throw new HttpRequestException(ENCODING_ERROR_CODE, e);
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} catch (HttpException e) {
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throw new HttpRequestException(HTTP_ERROR_CODE, e);
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} catch (IOException e) {
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throw new HttpRequestException(IO_ERROR_CODE, e);
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} finally {
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if (httpMethod != null) {
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httpMethod.releaseConnection();
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}
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}
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}
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public static String postFormRequest(String baseUrl, Map<String, String> params, Map<String, String> headers, String body) {
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HttpURLConnection connection = null;
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BufferedReader reader = null;
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try {
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// 构建完整的URL（包含查询参数）
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String fullUrl = buildUrlWithParams(baseUrl, params);
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URL requestUrl = new URL(fullUrl);
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connection = (HttpURLConnection) requestUrl.openConnection();
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// 设置请求方法
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connection.setRequestMethod("POST");
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connection.setDoOutput(true);
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connection.setDoInput(true);
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connection.setUseCaches(false);
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// 设置请求头
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if (headers != null) {
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for (Map.Entry<String, String> entry : headers.entrySet()) {
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connection.setRequestProperty(entry.getKey(), entry.getValue());
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}
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}
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// 设置默认的Content-Type
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if (!connection.getRequestProperties().containsKey("Content-Type")) {
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connection.setRequestProperty("Content-Type", "application/json; charset=UTF-8");
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}
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// 如果有请求体，写入数据
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if (body != null && !body.isEmpty()) {
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try (OutputStream os = connection.getOutputStream()) {
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byte[] input = body.getBytes(StandardCharsets.UTF_8);
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os.write(input, 0, input.length);
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}
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}
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// 获取响应码
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int responseCode = connection.getResponseCode();
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// 读取响应
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StringBuilder response = new StringBuilder();
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if (responseCode == HttpURLConnection.HTTP_OK) {
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reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
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} else {
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reader = new BufferedReader(new InputStreamReader(connection.getErrorStream()));
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}
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String line;
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while ((line = reader.readLine()) != null) {
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response.append(line);
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}
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return response.toString();
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} catch (Exception e) {
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throw new RuntimeException("POST请求失败: " + e.getMessage(), e);
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} finally {
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// 关闭连接
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if (reader != null) {
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try {
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reader.close();
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} catch (Exception e) { /* ignore */ }
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}
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if (connection != null) {
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connection.disconnect();
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}
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}
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}
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private static String buildUrlWithParams(String baseUrl, Map<String, String> params) {
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if (params == null || params.isEmpty()) {
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return baseUrl;
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}
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StringBuilder urlBuilder = new StringBuilder(baseUrl);
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boolean firstParam = true;
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for (Map.Entry<String, String> entry : params.entrySet()) {
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if (firstParam) {
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urlBuilder.append("?");
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firstParam = false;
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} else {
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urlBuilder.append("&");
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}
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try {
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urlBuilder.append(URLEncoder.encode(entry.getKey(), StandardCharsets.UTF_8.toString())).append("=").append(URLEncoder.encode(entry.getValue(), StandardCharsets.UTF_8.toString()));
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} catch (UnsupportedEncodingException e) {
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e.printStackTrace();
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}
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}
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return urlBuilder.toString();
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}
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// public static String postFormRequest(String url, Map<String, String> params,Map<String, String> headers) throws HttpRequestException {
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// Assert.hasLength(url, "请求url不能为空字符串。");
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// Assert.notNull(params, "请求params不能为空。");
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//
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// PostMethod httpMethod = new PostMethod(url);
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//
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// httpMethod.addRequestHeader("Content-Type", "application/x-www-form-urlencoded; charset=UTF-8");
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//
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// if(!ObjectUtils.isEmpty(headers)) {
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// httpMethod.addRequestHeader(headers.get(), "application/json");
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// }
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//
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// try {
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// // 发送请求参数
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// StringBuilder param = new StringBuilder();
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// for (Map.Entry<String, String> entry : params.entrySet()) {
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// if (param.length() > 0) {
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// param.append("&");
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// }
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// param.append(entry.getKey());
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// param.append("=");
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// param.append(entry.getValue());
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// }
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//
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// RequestEntity entity = new StringRequestEntity(param.toString(), "application/json", "utf-8");
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// httpMethod.setRequestEntity(entity);
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// // 执行请求并接收响应码
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// int resultCode = httpClient.executeMethod(httpMethod);
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//
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// String respJson = httpMethod.getResponseBodyAsString();
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// if (resultCode == OK) {
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// return respJson;
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// } else {
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// throw new HttpRequestException(resultCode, respJson);
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// }
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// } catch (UnsupportedEncodingException e) {
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// throw new HttpRequestException(ENCODING_ERROR_CODE, e);
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// } catch (HttpException e) {
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// throw new HttpRequestException(HTTP_ERROR_CODE, e);
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// } catch (IOException e) {
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// throw new HttpRequestException(IO_ERROR_CODE, e);
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// } finally {
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// if (httpMethod != null) {
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// httpMethod.releaseConnection();
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// }
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// }
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// }
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private static Map<String, String> getRespHeaders(HttpMethodBase httpMethod) {
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//得到响应头
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Header[] respHeaders = httpMethod.getResponseHeaders();
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Map<String, String> headers = new HashMap<String, String>(respHeaders.length);
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for (Header header : respHeaders)
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headers.put(header.getName(), header.getValue());
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return headers;
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}
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protected static void setReqHeaders(Map<String, String> headers, HttpMethodBase httpMethod) {
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//设置请求头
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for (Map.Entry<String, String> header : headers.entrySet()) {
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httpMethod.addRequestHeader(header.getKey(), header.getValue());
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}
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}
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protected static void setHeaderRequestId(HttpMethodBase httpMethod) {
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//设置请求头
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ServletRequestAttributes req = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
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if (null != req) {
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String requestId = req.getRequest().getHeader("x-request-id");
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if (StringUtil.isNotEmpty(requestId)) {
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httpMethod.addRequestHeader("x-request-id", requestId);
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log.info("header中x-request-id值为:{}", requestId);
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}
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}
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}
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private static boolean isNullOrEmpty(String obj) {
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if (obj == null || obj.isEmpty()) {
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return true;
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}
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return false;
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}
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}
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