SpringBoot项目中使用OkHttp获取IP地址的示例代码
作者:无名指的等待712
OkHttp 是一个由 Square 开发的高效、现代的 HTTP 客户端库,用于 Android 和 Java 应用程序,它支持 HTTP/2 和 SPDY 等现代网络协议,并提供了多种功能和优化,本文给大家介绍了SpringBoot项目中如何获取IP地址,需要的朋友可以参考下
前言
OkHttp 是一个由 Square 开发的高效、现代的 HTTP 客户端库,用于 Android 和 Java 应用程序。它支持 HTTP/2 和 SPDY 等现代网络协议,并提供了多种功能和优化,使其成为处理网络请求的流行选择。这次项目中我将会使用OkHttp来发送网络请求
一、OkHttp是什么?
OkHttp 是一个由 Square 开发的高效、现代的 HTTP 客户端库,用于 Android 和 Java 应用程序。
二、使用步骤
1.OkHttp请求代码
package com.easybbs.utils; import com.easybbs.entity.enums.ResponseCodeEnum; import com.easybbs.exception.BusinessException; import okhttp3.*; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import javax.net.ssl.SSLContext; import javax.net.ssl.SSLSocketFactory; import javax.net.ssl.TrustManager; import javax.net.ssl.X509TrustManager; import java.io.IOException; import java.net.ConnectException; import java.net.SocketTimeoutException; import java.security.SecureRandom; import java.security.cert.X509Certificate; import java.util.Map; import java.util.concurrent.TimeUnit; public class OKHttpUtils { /** * 请求超时时间5秒 */ private static final int TIME_OUT_SECONDS = 5; private static Logger logger = LoggerFactory.getLogger(OKHttpUtils.class); private static OkHttpClient.Builder getClientBuilder() { OkHttpClient.Builder clientBuilder = new OkHttpClient.Builder().followRedirects(false).addInterceptor(new RedirectInterceptor()).retryOnConnectionFailure(false); clientBuilder.connectTimeout(TIME_OUT_SECONDS, TimeUnit.SECONDS).readTimeout(TIME_OUT_SECONDS, TimeUnit.SECONDS); clientBuilder.sslSocketFactory(createSSLSocketFactory()).hostnameVerifier((hostname, session) -> true); return clientBuilder; } private static Request.Builder getRequestBuilder(Map<String, String> header) { Request.Builder requestBuilder = new Request.Builder(); if (null != header) { for (Map.Entry<String, String> map : header.entrySet()) { String key = map.getKey(); String value; if (map.getValue() == null) { value = ""; } else { value = map.getValue(); } requestBuilder.addHeader(key, value); } } return requestBuilder; } private static FormBody.Builder getBuilder(Map<String, String> params) { FormBody.Builder builder = new FormBody.Builder(); if (params == null) { return builder; } for (Map.Entry<String, String> map : params.entrySet()) { String key = map.getKey(); String value; if (map.getValue() == null) { value = ""; } else { value = map.getValue(); } builder.add(key, value); } return builder; } public static String getRequest(String url) throws BusinessException { ResponseBody responseBody = null; try { OkHttpClient.Builder clientBuilder = getClientBuilder(); Request.Builder requestBuilder = getRequestBuilder(null); OkHttpClient client = clientBuilder.build(); Request request = requestBuilder.url(url).build(); Response response = client.newCall(request).execute(); responseBody = response.body(); return responseBody.string(); } catch (SocketTimeoutException | ConnectException e) { logger.error("OKhttp POST 请求超时,url:{}", url, e); throw new BusinessException(ResponseCodeEnum.CODE_900); } catch (Exception e) { logger.error("OKhttp GET 请求异常", e); return null; } finally { if (responseBody != null) { responseBody.close(); } } } public static String postRequest(String url, Map<String, String> header, Map<String, String> params) throws BusinessException { ResponseBody responseBody = null; try { OkHttpClient.Builder clientBuilder = getClientBuilder(); Request.Builder requestBuilder = getRequestBuilder(header); FormBody.Builder builder = getBuilder(params); OkHttpClient client = clientBuilder.build(); RequestBody requestBody = builder.build(); Request request = requestBuilder.url(url).post(requestBody).build(); Response response = client.newCall(request).execute(); responseBody = response.body(); String responseStr = responseBody.string(); return responseStr; } catch (SocketTimeoutException | ConnectException e) { logger.error("OKhttp POST 请求超时,url:{}", url, e); throw new BusinessException(ResponseCodeEnum.CODE_900); } catch (Exception e) { logger.error("OKhttp POST 请求异常,url:{}", url, e); return null; } finally { if (responseBody != null) { responseBody.close(); } } } private static SSLSocketFactory createSSLSocketFactory() { SSLSocketFactory ssfFactory = null; try { SSLContext sc = SSLContext.getInstance("TLSv1.2"); sc.init(null, new TrustManager[]{new TrustAllCerts()}, new SecureRandom()); ssfFactory = sc.getSocketFactory(); } catch (Exception e) { e.printStackTrace(); } return ssfFactory; } } class TrustAllCerts implements X509TrustManager { @Override public void checkClientTrusted(X509Certificate[] chain, String authType) { } @Override public void checkServerTrusted(X509Certificate[] chain, String authType) { } @Override public X509Certificate[] getAcceptedIssuers() { return new X509Certificate[0]; } } class RedirectInterceptor implements Interceptor { private static Logger logger = LoggerFactory.getLogger(RedirectInterceptor.class); @Override public Response intercept(Chain chain) throws IOException { Request request = chain.request(); Response response = chain.proceed(request); int code = response.code(); if (code == 307 || code == 301 || code == 302) { //获取重定向的地址 String location = response.headers().get("Location"); logger.info("重定向地址,location:{}", location); //重新构建请求 Request newRequest = request.newBuilder().url(location).build(); response = chain.proceed(newRequest); } return response; } }
2.获取Ip地址
代码如下(示例):这个代码只能获取到省份地址,具体信息请看下面的详细访问
public String getIpAddress(String ip){ try { String url = "http://whois.pconline.com.cn/ipJson.jsp?json=true&ip=" + ip; String responseJson = OKHttpUtils.getRequest(url); if(null == responseJson){ return Constants.NO_ADDRESS; } Map<String,String> addressInfo = JsonUtils.convertJson2Obj(responseJson,Map.class); return addressInfo.get("pro"); }catch (Exception e){ logger.error("获取ip地址失败",e); } return Constants.NO_ADDRESS; }
3.Controller层获取Ip地址
@RequestMapping("/login") public String login(HttpServletRequest request){ String ip = getIpAddr(request) return getIpAddress(ip); } /** * 获取客户端IP地址 * 由于客户端的IP地址可能通过多个代理层转发,因此需要检查多个HTTP头字段以获取真实IP。 * 此方法首先检查“x-forwarded-for”头,这是最常用的代理头,然后尝试其他不那么常见的头字段。 * 如果所有尝试都失败,则回退到使用请求的远程地址。 * * @param request HttpServletRequest对象,用于获取客户端IP地址。 * @return 客户端的IP地址字符串。如果无法确定客户端IP,则返回请求的远程地址。 */ protected String getIpAddr(HttpServletRequest request) { // 尝试获取“x-forwarded-for”头,这是最常用的代理头字段。 String ip = request.getHeader("x-forwarded-for"); // 检查“x-forwarded-for”头是否有效,并提取第一个IP地址。 if (ip != null && ip.length() != 0 && !"unknown".equalsIgnoreCase(ip)) { // 多次反向代理后会有多个ip值,第一个ip才是真实ip if (ip.indexOf(",") != -1) { ip = ip.split(",")[0]; } } // 如果“x-forwarded-for”头无效,尝试其他不那么常见的代理头字段。 if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) { ip = request.getHeader("Proxy-Client-IP"); } if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) { ip = request.getHeader("WL-Proxy-Client-IP"); } if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) { ip = request.getHeader("HTTP_CLIENT_IP"); } if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) { ip = request.getHeader("HTTP_X_FORWARDED_FOR"); } if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) { ip = request.getHeader("X-Real-IP"); } // 如果所有代理头字段都无效,回退到使用请求的远程地址作为客户端IP。 if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) { ip = request.getRemoteAddr(); } // 返回获取到的IP地址,无论它是通过代理头还是直接从请求中获取。 return ip; }
获取信息如上,可以自行获取其他信息
总结
本次项目总结如何获取Ip地址
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