com.qing.common.util.IPUtils.java Source code

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Here is the source code for com.qing.common.util.IPUtils.java

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/**
 *  Copyright (c) 2011, Eryptogram.java TAIHEIOT and/or its affiliates. All rights reserved.
 *
 *  Licensed under the TAIHEIOT License, Version 1.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package com.qing.common.util;

import javax.servlet.http.HttpServletRequest;

import org.apache.commons.lang3.StringUtils;

/**
 * Title:IP?<br>
 * Description: IP?<br>
 * CreateTime: 2012-08-06 16:39<br>
 * Copyright: Copyright (c) 2012 taiheiot.com<br>
 * 
 * @author taiheiot
 * @since 1.0
 */
public class IPUtils {

    /**
     * ?IP?s
     * 
     * @param request
     * @return IP?
     */
    public static String getRemoteIp(HttpServletRequest request) {
        String ipString = request.getHeader("x-forwarded-for");
        if (StringUtils.isEmpty(ipString) || "unknown".equalsIgnoreCase(ipString)) {
            ipString = request.getHeader("Proxy-Client-IP");
        }
        if (StringUtils.isEmpty(ipString) || "unknown".equalsIgnoreCase(ipString)) {
            ipString = request.getHeader("WL-Proxy-Client-IP");
        }
        if (StringUtils.isEmpty(ipString) || "unknown".equalsIgnoreCase(ipString)) {
            ipString = request.getRemoteAddr();
        }

        // ??unknownip
        final String[] arr = ipString.split(",");
        for (final String str : arr) {
            if (!"unknown".equalsIgnoreCase(str)) {
                ipString = str;
                break;
            }
        }

        return ipString;
    }
}