1. Get the ip address of the visitor:
Don't talk about the code directly. See the notes for details
package com.xr.util; import lombok.extern.slf4j.Slf4j; import javax.servlet.http.HttpServletRequest; import java.net.*; import java.util.Enumeration; /** * @Description: Get IP method * @BelongsProject: Jmccms * @BelongsPackage: com.jmccms.util * @Author: ChenYongJia * @CreateTime: 2019-05-14 22:29 * @Email [email protected] */ @Slf4j public class IpUtil { private static final String LOCAL_IP = "127.0.0.1"; /** * Get IP address * * If you use reverse agent software such as Nginx, you cannot pass the request.getRemoteAddr() get IP address * If multi-level reverse proxy is used, the value of x-forward-for is not only one, but a string of IP addresses. The first valid IP string in x-forward-for that is not unknown is the real IP address */ public static String getIpAddr(HttpServletRequest request) { if (request == null) { return "unknown"; } String ip = request.getHeader("x-forwarded-for"); 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("X-Forwarded-For"); } 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("X-Real-IP"); } if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) { ip = request.getRemoteAddr(); } return "0:0:0:0:0:0:0:1".equals(ip) ? LOCAL_IP : ip; } public static boolean internalIp(String ip) { boolean res = false; byte[] addr = textToNumericFormatV4(ip); if (addr != null && ip != null) { res = internalIp(addr) || LOCAL_IP.equals(ip); } return res; } private static boolean internalIp(byte[] addr) { final byte b0 = addr[0]; final byte b1 = addr[1]; // 10.x.x.x/8 final byte SECTION_1 = 0x0A; // 172.16.x.x/12 final byte SECTION_2 = (byte) 0xAC; final byte SECTION_3 = (byte) 0x10; final byte SECTION_4 = (byte) 0x1F; // 192.168.x.x/16 final byte SECTION_5 = (byte) 0xC0; final byte SECTION_6 = (byte) 0xA8; boolean flag = false; switch (b0) { case SECTION_1: flag = true; break; case SECTION_2: if (b1 >= SECTION_3 && b1 <= SECTION_4) { flag = true; } break; case SECTION_5: if (b1 == SECTION_6) { flag = true; } break; default: break; } return flag; } /** * Convert IPv4 address to byte *IPv4 address * @param text * @return byte byte */ public static byte[] textToNumericFormatV4(String text) { if (text.length() == 0) { return null; } byte[] bytes = new byte[4]; String[] elements = text.split("\\.", -1); try { long l; int i; switch (elements.length) { case 1: l = Long.parseLong(elements[0]); if ((l < 0L) || (l > 4294967295L)) return null; bytes[0] = (byte) (int) (l >> 24 & 0xFF); bytes[1] = (byte) (int) ((l & 0xFFFFFF) >> 16 & 0xFF); bytes[2] = (byte) (int) ((l & 0xFFFF) >> 8 & 0xFF); bytes[3] = (byte) (int) (l & 0xFF); break; case 2: l = Integer.parseInt(elements[0]); if ((l < 0L) || (l > 255L)) return null; bytes[0] = (byte) (int) (l & 0xFF); l = Integer.parseInt(elements[1]); if ((l < 0L) || (l > 16777215L)) return null; bytes[1] = (byte) (int) (l >> 16 & 0xFF); bytes[2] = (byte) (int) ((l & 0xFFFF) >> 8 & 0xFF); bytes[3] = (byte) (int) (l & 0xFF); break; case 3: for (i = 0; i < 2; ++i) { l = Integer.parseInt(elements[i]); if ((l < 0L) || (l > 255L)) return null; bytes[i] = (byte) (int) (l & 0xFF); } l = Integer.parseInt(elements[2]); if ((l < 0L) || (l > 65535L)) return null; bytes[2] = (byte) (int) (l >> 8 & 0xFF); bytes[3] = (byte) (int) (l & 0xFF); break; case 4: for (i = 0; i < 4; ++i) { l = Integer.parseInt(elements[i]); if ((l < 0L) || (l > 255L)) return null; bytes[i] = (byte) (int) (l & 0xFF); } break; default: return null; } } catch (NumberFormatException e) { log.error("Number format exception",e); return null; } return bytes; } public static String getLocalIP() { String ip = ""; if (System.getProperty("os.name").toLowerCase().startsWith("windows")) { InetAddress addr; try { addr = InetAddress.getLocalHost(); ip = addr.getHostAddress(); } catch (UnknownHostException e) { log.error("Get failed",e); } return ip; } else { try { Enumeration<?> e1 = (Enumeration<?>) NetworkInterface .getNetworkInterfaces(); while (e1.hasMoreElements()) { NetworkInterface ni = (NetworkInterface) e1.nextElement(); if (!ni.getName().equals("eth0")) { continue; } else { Enumeration<?> e2 = ni.getInetAddresses(); while (e2.hasMoreElements()) { InetAddress ia = (InetAddress) e2.nextElement(); if (ia instanceof Inet6Address) continue; ip = ia.getHostAddress(); return ip; } break; } } } catch (SocketException e) { log.error("Get failed",e); } } return ""; } }
Use in control class:
@RequestMapping("login") public ResponseResult login( HttpServletRequest request){ ResponseResult result=new ResponseResult(); String ipAddress = IpUtil.getIpAddr(request); System.out.println(ipAddress); result.getData().put("message",ipAddress); return result; }
2. Access to device information:
Spring Mobile is a framework that provides the ability to detect the type of device that makes requests to your spring website and provide other views based on that device. Like all spring projects, the real strength of Spring Mobile is its ease of extension.
features
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Device parser abstraction for server-side detection of mobile and tablet devices
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Website preference management, which allows users to indicate whether they like the "normal", "mobile" or "tablet" experience
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Site switcher, which can switch users to the most suitable website, whether mobile phone, tablet or general website, according to users' devices and displayed site preferences
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Device aware view management, used to organize and manage different views of specific devices
SpringBoot configuration:
1. To use Spring Mobile, you need to pom.xml Add the following dependencies to:
<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-mobile</artifactId> <version>1.5.9.RELEASE</version> </dependency>
2. Add the following Java based configuration to enable device detection in Spring Web applications:
package com.xr.config; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import org.springframework.mobile.device.DeviceHandlerMethodArgumentResolver; import org.springframework.mobile.device.DeviceResolverHandlerInterceptor; import org.springframework.mobile.device.site.SitePreferenceHandlerInterceptor; import org.springframework.mobile.device.site.SitePreferenceHandlerMethodArgumentResolver; import org.springframework.web.method.support.HandlerMethodArgumentResolver; import org.springframework.web.servlet.config.annotation.InterceptorRegistry; import org.springframework.web.servlet.config.annotation.WebMvcConfigurer; import java.util.List; @Configuration public class MobileConfig implements WebMvcConfigurer { @Bean public DeviceResolverHandlerInterceptor deviceResolverHandlerInterceptor() { return new DeviceResolverHandlerInterceptor(); } @Bean public DeviceHandlerMethodArgumentResolver deviceHandlerMethodArgumentResolver() { return new DeviceHandlerMethodArgumentResolver(); } @Override public void addInterceptors(InterceptorRegistry registry) { registry.addInterceptor(new DeviceResolverHandlerInterceptor()); } @Override public void addArgumentResolvers(List<HandlerMethodArgumentResolver> argumentResolvers) { argumentResolvers.add(new DeviceHandlerMethodArgumentResolver()); } }
2. Inject Device into your controller:
@RequestMapping("about") public void about(Device device){ if (device.isMobile()) { System.out.println("========Request source device is mobile!========"); } else if (device.isTablet()) { System.out.println("========Request source device is tablet!========"); } else if(device.isNormal()){ System.out.println("========Request source device is PC!========"); }else { System.out.println("========Request source device is other!========"); } }
3. Access to ip City address information:
1. To Tencent location service Register developers
2. Access the key management in the console to apply for the key
3. Set the white list in the key setting, otherwise the interface cannot be called successfully if there is a key.
Including the domain name white list and authorized ip, generally the ip of your own machine and server
4. Create a tool class to find the location
package com.xr.util; import com.alibaba.fastjson.JSONObject; import java.io.BufferedReader; import java.io.InputStreamReader; import java.net.URL; import java.net.URLConnection; import java.util.List; import java.util.Map; public class IpToAddressUtil { //Using Tencent's interface to get city information through ip private static final String KEY = "own key"; public static String getCityInfo(String ip) { String s = sendGet(ip, KEY); Map map = JSONObject.parseObject(s, Map.class); String message = (String) map.get("message"); if("query ok".equals(message)){ Map result = (Map) map.get("result"); Map addressInfo = (Map) result.get("ad_info"); String nation = (String) addressInfo.get("nation"); String province = (String) addressInfo.get("province"); // String district = (String) addressInfo.get("district"); String city = (String) addressInfo.get("city"); String address = nation + "-" + province + "-" + city; return address; }else{ System.out.println(message); return null; } } //Request operation according to the key applied for on Tencent location service public static String sendGet(String ip, String key) { String result = ""; BufferedReader in = null; try { String urlNameString = "https://apis.map.qq.com/ws/location/v1/ip?ip="+ip+"&key="+key; URL realUrl = new URL(urlNameString); // Open connection to URL URLConnection connection = realUrl.openConnection(); // Set common request properties connection.setRequestProperty("accept", "*/*"); connection.setRequestProperty("connection", "Keep-Alive"); connection.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)"); // Establish the actual connection connection.connect(); // Get all response header fields Map<String, List<String>> map = connection.getHeaderFields(); // Traverse all response header fields // for (Map.Entry entry : map.entrySet()) { // System.out.println(key + "--->" + entry); // } // Define BufferedReader input stream to read response of URL in = new BufferedReader(new InputStreamReader( connection.getInputStream())); String line; while ((line = in.readLine()) != null) { result += line; } } catch (Exception e) { System.out.println("send out GET Exception in request!" + e); e.printStackTrace(); } // Use the finally block to close the input stream finally { try { if (in != null) { in.close(); } } catch (Exception e2) { e2.printStackTrace(); } } return result; } }
5. Call directly in the control class