package com.zbkj.common.utils;
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import org.apache.commons.lang3.StringUtils;
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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 javax.servlet.http.HttpServlet;
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import javax.servlet.http.HttpServletRequest;
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import java.net.InetAddress;
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import java.net.UnknownHostException;
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import java.util.Enumeration;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Objects;
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/**
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* Request工具类
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*/
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public class RequestUtil extends HttpServlet{
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private static final String UNKNOWN = "unknown";
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private static final String LOCALHOST_IP = "127.0.0.1";
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// 客户端与服务器同为一台机器，获取的 ip 有时候是 ipv6 格式
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private static final String LOCALHOST_IPV6 = "0:0:0:0:0:0:0:1";
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private static final String SEPARATOR = ",";
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// 根据 HttpServletRequest 获取 IP
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public static String getIpAddress(HttpServletRequest request) {
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if (request == null) {
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return "unknown";
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}
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String ip = request.getHeader("x-forwarded-for");
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if (ip == null || ip.length() == 0 || UNKNOWN.equalsIgnoreCase(ip)) {
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ip = request.getHeader("Proxy-Client-IP");
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}
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if (ip == null || ip.length() == 0 || UNKNOWN.equalsIgnoreCase(ip)) {
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ip = request.getHeader("X-Forwarded-For");
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}
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if (ip == null || ip.length() == 0 || UNKNOWN.equalsIgnoreCase(ip)) {
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ip = request.getHeader("WL-Proxy-Client-IP");
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}
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if (ip == null || ip.length() == 0 || UNKNOWN.equalsIgnoreCase(ip)) {
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ip = request.getHeader("X-Real-IP");
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}
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if (ip == null || ip.length() == 0 || UNKNOWN.equalsIgnoreCase(ip)) {
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ip = request.getRemoteAddr();
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if (LOCALHOST_IP.equalsIgnoreCase(ip) || LOCALHOST_IPV6.equalsIgnoreCase(ip)) {
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// 根据网卡取本机配置的 IP
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InetAddress iNet = null;
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try {
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iNet = InetAddress.getLocalHost();
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} catch (UnknownHostException e) {
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e.printStackTrace();
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}
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if (iNet != null) {
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ip = iNet.getHostAddress();
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}
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}
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}
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// 对于通过多个代理的情况，分割出第一个 IP
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if (ip != null && ip.length() > 15) {
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if (ip.indexOf(SEPARATOR) > 0) {
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ip = ip.substring(0, ip.indexOf(SEPARATOR));
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}
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}
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return LOCALHOST_IPV6.equals(ip) ? LOCALHOST_IP : ip;
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}
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public static HttpServletRequest getRequest() {
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if(RequestContextHolder.getRequestAttributes() != null){
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return ((ServletRequestAttributes) Objects.requireNonNull(RequestContextHolder.getRequestAttributes())).getRequest();
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}
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return null;
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}
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public static HashMap<String, Object> getRequestParamAndHeader(){
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try{
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HttpServletRequest request = getRequest();
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if(request == null){
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return null;
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}
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//request信息
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HashMap<String, Object> data = new HashMap<>();
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HashMap<String, Object> requestParams = new HashMap<>();
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Enumeration<String> paraNames = request.getParameterNames();
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if(paraNames != null){
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for(Enumeration<String> enumeration =paraNames;enumeration.hasMoreElements();){
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String key= enumeration.nextElement();
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requestParams.put(key, request.getParameter(key));
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}
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}
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HashMap<String, Object> requestFilter = new HashMap<>();
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Enumeration<String> attributeNames = request.getAttributeNames();
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if(attributeNames != null){
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for ( Enumeration<String> attributeNames1 = attributeNames; attributeNames1.hasMoreElements();) {
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String key= attributeNames1.nextElement();
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if(key.contains("request_")){
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requestFilter.put(key, request.getAttribute(key));
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}
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}
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}
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data.put("url", request.getRequestURL());
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data.put("uri", request.getRequestURI());
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data.put("method", request.getMethod());
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data.put("request", requestParams);
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data.put("request_filter", requestFilter);
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//header 信息
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Enumeration<String> headerNames = request.getHeaderNames();
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HashMap<String, Object> headerParams = new HashMap<>();
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if(headerNames != null){
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for(Enumeration<String> enumeration = headerNames;enumeration.hasMoreElements();){
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String key= enumeration.nextElement();
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String value=request.getHeader(key);
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headerParams.put(key, value);
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}
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}
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data.put("header", headerParams);
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return data;
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}catch (Exception e){
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e.printStackTrace();
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return null;
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}
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}
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public static String getDomain(){
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HttpServletRequest request = getRequest();
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if(request == null){
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return null;
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}
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return request.getServerName() + ":" + request.getServerPort();
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}
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public static String getUri(HttpServletRequest request){
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String uri = request.getRequestURI();
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List<String> list = CarUtil.stringToArrayStrRegex(uri, "/");
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list.removeIf(StringUtils::isNumeric); //去掉url中的数字参数
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list.removeIf(c -> c.contains(","));// 去掉url中的逗号分隔参数
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return StringUtils.join(list, "/");
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}
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}
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