package com.zdcf.tool;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.net.UnknownHostException;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Enumeration;
import java.util.regex.Pattern;
import javax.servlet.http.HttpServletRequest;
public class Tools {
/**
* 检测字符串是否不为空(null,"","null")
* @param s
* @return 不为空则返回true，否则返回false
*/
public static boolean notEmpty(String s){
return s!=null && !"".equals(s) && !"null".equals(s);
}
/**
* 检测字符串是否为空(null,"","null")
* @param s
* @return 为空则返回true，不否则返回false
*/
public static boolean isEmpty(String s){
return s==null || "".equals(s) || "null".equals(s);
}
/**
* 字符串转换为字符串数组
* @param str 字符串
* @param splitRegex 分隔符
* @return
*/
public static String[] str2StrArray(String str,String splitRegex){
if(isEmpty(str)){
return null;
}
return str.split(splitRegex);
}
/**
* 用默认的分隔符(,)将字符串转换为字符串数组
* @param str 字符串
* @return
*/
public static String[] str2StrArray(String str){
return str2StrArray(str,",\\s*");
}
/**
* 按照yyyy-MM-dd HH:mm:ss的格式，日期转字符串
* @param date
* @return yyyy-MM-dd HH:mm:ss
*/
public static String date2Str(Date date){
return date2Str(date,"yyyy-MM-dd HH:mm:ss");
}
/**
* 按照yyyy-MM-dd HH:mm:ss的格式，字符串转日期
* @param date
* @return
*/
public static Date str2Date(String date){
if(notEmpty(date)){
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
try {
return sdf.parse(date);
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return new Date();
}else{
return null;
}
}
/**
* 按照参数format的格式，日期转字符串
* @param date
* @param format
* @return
*/
public static String date2Str(Date date,String format){
if(date!=null){
SimpleDateFormat sdf = new SimpleDateFormat(format);
return sdf.format(date);
}else{
return "";
}
}
/***
*
* @param content 内容String
* @param p >0 .位数
* @return @tale:
* @purpose：得到相应位数已过滤html、script、style 标签的内容 内容结尾 为...
* @author：Simon - 赵振明
* @CreationTime：Aug 25, 201011:07:06 AM
*/
public static String getNoHTMLString(String content){
if(null==content) return "";
java.util.regex.Pattern p_script;
java.util.regex.Matcher m_script;
java.util.regex.Pattern p_style;
java.util.regex.Matcher m_style;
java.util.regex.Pattern p_html;
java.util.regex.Matcher m_html;
try {
String regEx_script = "<[\\s]*?script[^>]*?>[\\s\\S]*?<[\\s]*?\\/[\\s]*?script[\\s]*?>";
//定义script的正则表达式{或<script[^>]*?>[\\s\\S]*?<\\/script> }
String regEx_style = "<[\\s]*?style[^>]*?>[\\s\\S]*?<[\\s]*?\\/[\\s]*?style[\\s]*?>";
//定义style的正则表达式{或<style[^>]*?>[\\s\\S]*?<\\/style> }
String regEx_html = "<[^>]+>"; //定义HTML标签的正则表达式
p_script = Pattern.compile(regEx_script,Pattern.CASE_INSENSITIVE);
m_script = p_script.matcher(content);
content = m_script.replaceAll(""); //过滤script标签
p_style = Pattern.compile(regEx_style,Pattern.CASE_INSENSITIVE);
m_style = p_style.matcher(content);
content = m_style.replaceAll(""); //过滤style标签
p_html = Pattern.compile(regEx_html,Pattern.CASE_INSENSITIVE);
m_html = p_html.matcher(content);
content = m_html.replaceAll(""); //过滤html标签
}catch(Exception e) {
return "";
}
return content;
}
public static String getIpAddr(HttpServletRequest request) {
String ip = request.getHeader("X-Real-IP");
if (null != ip && !"".equals(ip.trim())
&& !"unknown".equalsIgnoreCase(ip)) {
return ip;
}
ip = request.getHeader("X-Forwarded-For");
if (null != ip && !"".equals(ip.trim())
&& !"unknown".equalsIgnoreCase(ip)) {
// 多次反向代理后会有多个IP值，第一个为真实IP。
int index = ip.indexOf(',');
if (index != -1) {
return ip.substring(0, index);
} else {
return ip;
}
}
return request.getRemoteAddr();
}
public static String removeFourChar(String content) {
byte[] conbyte = content.getBytes();
for (int i = 0; i < conbyte.length; i++) {
if ((conbyte[i] & 0xF8) == 0xF0) {
for (int j = 0; j < 4; j++) {
conbyte[i+j]=0x30;
}
i += 3;
}
}
content = new String(conbyte);
return content.replaceAll("0000", "");
}
public static String getServerIp(){
String SERVER_IP = null;
try {
Enumeration netInterfaces = NetworkInterface.getNetworkInterfaces();
InetAddress ip = null;
while (netInterfaces.hasMoreElements()) {
NetworkInterface ni = (NetworkInterface) netInterfaces
.nextElement();
ip = (InetAddress) ni.getInetAddresses().nextElement();
SERVER_IP = ip.getHostAddress();
if (!ip.isSiteLocalAddress() && !ip.isLoopbackAddress()
&& ip.getHostAddress().indexOf(":") == -1) {
SERVER_IP = ip.getHostAddress();
break;
} else {
ip = null;
}
}
} catch (SocketException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return SERVER_IP;
}
public static String getLocalIP(){
InetAddress addr = null;
try {
addr = InetAddress.getLocalHost();
} catch (UnknownHostException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
byte[] ipAddr = addr.getAddress();
String ipAddrStr = "";
for (int i = 0; i < ipAddr.length; i++) {
if (i > 0) {
ipAddrStr += ".";
}
ipAddrStr += ipAddr[i] & 0xFF;
}
//System.out.println(ipAddrStr);
return ipAddrStr;
}
}