src/main/java/com/yuanlrc/base/util/StringUtil.java

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package com.yuanlrc.base.util;

import com.alibaba.fastjson.JSONObject;
import com.yuanlrc.base.bean.CodeMsg;

import java.io.*;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;

/**
 * 项目通用工具类
 * @author Administrator
 *
 */
public class StringUtil {
	
	
	/**
	 * 返回指定格式的日期字符串
	 * @param date
	 * @param formatter
	 * @return
	 */
	public static String getFormatterDate(Date date,String formatter){
		SimpleDateFormat sdf = new SimpleDateFormat(formatter);
		return sdf.format(date);
	}
	
	/**
	 * 判断请求是否是ajax
	 * @param request
	 * @return
	 */
	public static boolean isAjax(HttpServletRequest request){
		String header = request.getHeader("X-Requested-With");
		if("XMLHttpRequest".equals(header))return true;
		return false;
	}
	
	/**
	 * 从流读取字符串
	 * @param inputStream
	 * @return
	 */
	public static String getStringFromInputStream(InputStream inputStream){
		String string = "";
		try {
			BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream,"GB2312"));
			String buf = null;
			try {
				while((buf = bufferedReader.readLine()) != null){
					string += buf;
				}
			} catch (Exception e) {