open-JSD-8968/src/main/java/com/fr/plugin/zjsso/utils/Utils.java

package com.fr.plugin.zjsso.utils;

import com.fr.base.TemplateUtils;
import com.fr.data.NetworkHelper;
import com.fr.io.utils.ResourceIOUtils;
import com.fr.json.JSONObject;
import com.fr.stable.CodeUtils;
import com.fr.stable.StringUtils;
import com.fr.third.org.apache.commons.codec.digest.DigestUtils;
import com.fr.web.utils.WebUtils;

import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.BufferedReader;
import java.io.InputStream;
import java.net.URLEncoder;
import java.util.HashMap;
import java.util.Map;
import java.util.UUID;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class Utils {

    /**
     * 判断字符串是否为空
     * @param str
     * @return  true 空字符串  false 非空字符串
     */
    public static boolean isNullStr(String str){
        return !(str != null && !str.isEmpty() && !"null".equals(str));
    }

    /**
     * 判断字符串是否非空
     * @param str
     * @return
     */
    public static boolean isNotNullStr(String str){
        return !isNullStr(str);
    }

    /**
     * MD5加密
     * @param str
     * @return
     */
    public static String getMd5Str(String str)
    {
        return DigestUtils.md5Hex(str);
    }

	/**
     * 帆软shaEncode加密
     */

	public static String shaEncode(String str){
		return CodeUtils.sha256Encode(str);
	}

    /**
     * 获取uuid
     */
    public static String uuid(){
        return UUID.randomUUID().toString();
    }

    /**
     * 替换空字符串
     * @param str
     * @param replace
     * @return
     */
    public static String replaceNullStr(String str,String replace){
        if(isNullStr(str)){
            return replace;
        }

        return str;
    }

    /**
     * 获取请求体
     * @param req
     * @return
     */
    public static JSONObject getRequestBody(HttpServletRequest req){
        StringBuffer sb = new StringBuffer();
        String line = null;
        try {
            BufferedReader reader = req.getReader();
            while ((line = reader.readLine()) != null)
                sb.append(line);
        } catch (Exception e) {
            FRUtils.FRLogInfo("getRequestBody:exception:"+e.getMessage());
        }
        //将空格和换行符替换掉避免使用反序列化工具解析对象时失败
        String jsonString = sb.toString().replaceAll("\\s","").replaceAll("\n","");

        JSONObject json = new JSONObject(jsonString);

        return json;
    }

    /**
     * 获取ip
     * @return
     */
    public static String getIp(HttpServletRequest req){
        String realIp = req.getHeader("X-Real-IP");
        String fw = req.getHeader("X-Forwarded-For");
        if (StringUtils.isNotEmpty(fw) && !"unKnown".equalsIgnoreCase(fw)) {
            int var3 = fw.indexOf(",");
            return var3 != -1 ? fw.substring(0, var3) : fw;
        } else {
            fw = realIp;
            if (StringUtils.isNotEmpty(realIp) && !"unKnown".equalsIgnoreCase(realIp)) {
                return realIp;
            } else {
                if (StringUtils.isBlank(realIp) || "unknown".equalsIgnoreCase(realIp)) {
                    fw = req.getHeader("Proxy-Client-IP");
                }

                if (StringUtils.isBlank(fw) || "unknown".equalsIgnoreCase(fw)) {
                    fw = req.getHeader("WL-Proxy-Client-IP");
                }

                if (StringUtils.isBlank(fw) || "unknown".equalsIgnoreCase(fw)) {
                    fw = req.getHeader("HTTP_CLIENT_IP");
                }

                if (StringUtils.isBlank(fw) || "unknown".equalsIgnoreCase(fw)) {
                    fw = req.getHeader("HTTP_X_FORWARDED_FOR");
                }

                if (StringUtils.isBlank(fw) || "unknown".equalsIgnoreCase(fw)) {
                    fw = req.getRemoteAddr();
                }

                return fw;
            }
        }
    }

    /**
     * 根据key获取cookie
     * @param req
     * @return
     */
    public static String getCookieByKey(HttpServletRequest req,String key){
        Cookie[] cookies = req.getCookies();
        String cookie = "";

        if(cookies == null || cookies.length <=0){
            return "";
        }

        for(int i = 0; i < cookies.length; i++) {
            Cookie item = cookies[i];
            if (item.getName().equalsIgnoreCase(key)) {
                cookie = item.getValue();
            }
        }

        FRUtils.FRLogInfo("cookie:"+cookie);

        return cookie;
    }

    /**
     * 判断是否是手机端的链接
     * @param req
     * @return
     */
    public static boolean isMobile(HttpServletRequest req) {
        String[] mobileArray = {"iPhone", "iPad", "android", "windows phone", "xiaomi"};
        String userAgent = req.getHeader("user-agent");
        if (userAgent != null && userAgent.toUpperCase().contains("MOBILE")) {
            for(String mobile : mobileArray) {
                if(userAgent.toUpperCase().contains(mobile.toUpperCase())) {
                    return true;
                }
            }
        }
        return NetworkHelper.getDevice(req).isMobile();
    }

    /**
     * 只编码中文
     * @param url
     * @return
     */
    public static String encodeCH(String url ){
        Matcher matcher = Pattern.compile("[\\u4e00-\\u9fa5]").matcher(url);

        while(matcher.find()){
            String chn = matcher.group();
            url = url.replaceAll(chn, URLEncoder.encode(chn));
        }

        return url;
    }

    /**
     * 获取web-inf文件夹下的文件
     * filename /resources/ip4enc.properties
     */
    public static InputStream getResourcesFile(String filename){
        return ResourceIOUtils.read(filename);
    }

    public static void toErrorPage(HttpServletResponse res,String path,Map<String, String> parameterMap){
        if(parameterMap == null){
            parameterMap = new HashMap<String, String>();
        }

        try {
            String macPage = TemplateUtils.renderTemplate(path, parameterMap);
            WebUtils.printAsString(res, macPage);
        }catch (Exception e){
            FRUtils.FRLogError("跳转页面异常");
        }

    }
}