package com.moral.util;
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import java.util.Enumeration;
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import java.util.Map;
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import java.util.TreeMap;
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import javax.servlet.ServletRequest;
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import javax.servlet.http.HttpServletRequest;
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import lombok.extern.slf4j.Slf4j;
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import org.springframework.util.Assert;
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import org.springframework.util.ObjectUtils;
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@Slf4j
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public class WebUtils extends org.springframework.web.util.WebUtils {
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public static Map<String, Object> getParametersStartingWith(ServletRequest request, String prefix) {
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Assert.notNull(request, "Request must not be null");
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Enumeration<String> paramNames = request.getParameterNames();
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Map<String, Object> params = new TreeMap<String, Object>();
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if (prefix == null) {
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prefix = "";
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}
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while (paramNames != null && paramNames.hasMoreElements()) {
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String paramName = paramNames.nextElement();
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if ("".equals(prefix) || paramName.startsWith(prefix)) {
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String unprefixed = paramName.substring(prefix.length());
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String[] values = request.getParameterValues(paramName);
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if (values == null || values.length == 0 ) {
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// Do nothing, no values found at all.
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}
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else if (values.length > 1) {
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params.put(unprefixed, values);
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}
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else {
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if (!ObjectUtils.isEmpty(values[0]) && !"null".equalsIgnoreCase(values[0])) {
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if ("sorter".equals(unprefixed)) {
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params.put(unprefixed, values[0].replace("end", ""));
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} else {
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params.put(unprefixed, values[0]);
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}
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}
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}
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}
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}
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return params;
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}
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/**
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* @Description: 获取请求IP地址
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* @Param: [request]
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* @return: java.lang.String
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* @Author: 陈凯裕
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* @Date: 2021/3/31
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*/
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public static String getIpAddr(HttpServletRequest request) {
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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("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.getRemoteAddr();
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}
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return ip.equals("0:0:0:0:0:0:0:1")?"127.0.0.1":ip;
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}
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}
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