Java常用工具类
Posted 赵广陆
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目录
- 1 获取使用者操作系统和游览器版本信息
- 2 获取使用者ip地址
- 3 身份证验证工具类
- 4 雪花id生成用于文件名
- 5 名字转拼音
- 6 忽略BeanUtil字段
- 7 通过身份证号码获取出生日期、性别、年龄
- 8 map与url参数转换
- 9 java以逗号为分割符拼接字符串的技巧
以下工具类收集与网上,但是都是实际应用于项目当中经过检验和优化的,拿来直接使用没有什么问题
1 获取使用者操作系统和游览器版本信息
/**
* @author oldlu
* @version 1.0
* @date 2021/10/20 0020 15:17
*/
public class IPUtil
/**
* 获取操作系统,浏览器及浏览器版本信息
* @param request
* @return
*/
public static List<String> getOsAndBrowserInfo(HttpServletRequest request)
String browserDetails = request.getHeader("User-Agent");
String userAgent = browserDetails;
String user = userAgent.toLowerCase();
String os = "";
String browser = "";
//=================OS Info=======================
if (userAgent.toLowerCase().indexOf("windows") >= 0 )
os = "Windows";
else if(userAgent.toLowerCase().indexOf("mac") >= 0)
os = "Mac";
else if(userAgent.toLowerCase().indexOf("x11") >= 0)
os = "Unix";
else if(userAgent.toLowerCase().indexOf("android") >= 0)
os = "Android";
else if(userAgent.toLowerCase().indexOf("iphone") >= 0)
os = "IPhone";
else
os = "UnKnown, More-Info: "+userAgent;
//===============Browser===========================
if (user.contains("edge"))
browser=(userAgent.substring(userAgent.indexOf("Edge")).split(" ")[0]).replace("/", "-");
else if (user.contains("msie"))
String substring=userAgent.substring(userAgent.indexOf("MSIE")).split(";")[0];
browser=substring.split(" ")[0].replace("MSIE", "IE")+"-"+substring.split(" ")[1];
else if (user.contains("safari") && user.contains("version"))
browser=(userAgent.substring(userAgent.indexOf("Safari")).split(" ")[0]).split("/")[0]
+ "-" +(userAgent.substring(userAgent.indexOf("Version")).split(" ")[0]).split("/")[1];
else if ( user.contains("opr") || user.contains("opera"))
if(user.contains("opera"))
browser=(userAgent.substring(userAgent.indexOf("Opera")).split(" ")[0]).split("/")[0]
+"-"+(userAgent.substring(userAgent.indexOf("Version")).split(" ")[0]).split("/")[1];
else if(user.contains("opr"))
browser=((userAgent.substring(userAgent.indexOf("OPR")).split(" ")[0]).replace("/", "-"))
.replace("OPR", "Opera");
else if (user.contains("chrome"))
browser=(userAgent.substring(userAgent.indexOf("Chrome")).split(" ")[0]).replace("/", "-");
else if ((user.indexOf("mozilla/7.0") > -1) || (user.indexOf("netscape6") != -1) ||
(user.indexOf("mozilla/4.7") != -1) || (user.indexOf("mozilla/4.78") != -1) ||
(user.indexOf("mozilla/4.08") != -1) || (user.indexOf("mozilla/3") != -1) )
browser = "Netscape-?";
else if (user.contains("firefox"))
browser=(userAgent.substring(userAgent.indexOf("Firefox")).split(" ")[0]).replace("/", "-");
else if(user.contains("rv"))
String IEVersion = (userAgent.substring(userAgent.indexOf("rv")).split(" ")[0]).replace("rv:", "-");
browser="IE" + IEVersion.substring(0,IEVersion.length() - 1);
else
browser = "UnKnown, More-Info: "+userAgent;
List<String> strings=new ArrayList<>();
strings.add(os);
strings.add(browser);
return strings;
2 获取使用者ip地址
/**
* 获取IP方法
*
* @author ruoyi
*/
public class IpUtils
public static String getIpAddr(HttpServletRequest request)
if (request == null)
return "unknown";
String ip = request.getHeader("x-forwarded-for");
if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip))
ip = request.getHeader("Proxy-Client-IP");
if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip))
ip = request.getHeader("X-Forwarded-For");
if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip))
ip = request.getHeader("WL-Proxy-Client-IP");
if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip))
ip = request.getHeader("X-Real-IP");
if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip))
ip = request.getRemoteAddr();
return "0:0:0:0:0:0:0:1".equals(ip) ? "127.0.0.1" : htmlUtil.cleanHtmlTag(ip);
public static boolean internalIp(String ip)
byte[] addr = textToNumericFormatV4(ip);
return internalIp(addr) || "127.0.0.1".equals(ip);
private static boolean internalIp(byte[] addr)
if (Validator.isNull(addr) || addr.length < 2)
return true;
final byte b0 = addr[0];
final byte b1 = addr[1];
// 10.x.x.x/8
final byte SECTION_1 = 0x0A;
// 172.16.x.x/12
final byte SECTION_2 = (byte) 0xAC;
final byte SECTION_3 = (byte) 0x10;
final byte SECTION_4 = (byte) 0x1F;
// 192.168.x.x/16
final byte SECTION_5 = (byte) 0xC0;
final byte SECTION_6 = (byte) 0xA8;
switch (b0)
case SECTION_1:
return true;
case SECTION_2:
if (b1 >= SECTION_3 && b1 <= SECTION_4)
return true;
case SECTION_5:
switch (b1)
case SECTION_6:
return true;
default:
return false;
/**
* 将IPv4地址转换成字节
*
* @param text IPv4地址
* @return byte 字节
*/
public static byte[] textToNumericFormatV4(String text)
if (text.length() == 0)
return null;
byte[] bytes = new byte[4];
String[] elements = text.split("\\\\.", -1);
try
long l;
int i;
switch (elements.length)
case 1:
l = Long.parseLong(elements[0]);
if ((l < 0L) || (l > 4294967295L))
return null;
bytes[0] = (byte) (int) (l >> 24 & 0xFF);
bytes[1] = (byte) (int) ((l & 0xFFFFFF) >> 16 & 0xFF);
bytes[2] = (byte) (int) ((l & 0xFFFF) >> 8 & 0xFF);
bytes[3] = (byte) (int) (l & 0xFF);
break;
case 2:
l = Integer.parseInt(elements[0]);
if ((l < 0L) || (l > 255L))
return null;
bytes[0] = (byte) (int) (l & 0xFF);
l = Integer.parseInt(elements[1]);
if ((l < 0L) || (l > 16777215L))
return null;
bytes[1] = (byte) (int) (l >> 16 & 0xFF);
bytes[2] = (byte) (int) ((l & 0xFFFF) >> 8 & 0xFF);
bytes[3] = (byte) (int) (l & 0xFF);
break;
case 3:
for (i = 0; i < 2; ++i)
l = Integer.parseInt(elements[i]);
if ((l < 0L) || (l > 255L))
return null;
bytes[i] = (byte) (int) (l & 0xFF);
l = Integer.parseInt(elements[2]);
if ((l < 0L) || (l > 65535L))
return null;
bytes[2] = (byte) (int) (l >> 8 & 0xFF);
bytes[3] = (byte) (int) (l & 0xFF);
break;
case 4:
for (i = 0; i < 4; ++i)
l = Integer.parseInt(elements[i]);
if ((l < 0L) || (l > 255L))
return null;
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