Java项目:BBS技术论坛系统(java+SSM+JSP+bootstrap+Mysql)

package com.yuanlrc.tool; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.io.UnsupportedEncodingException; import java.net.InetAddress; import java.net.URL; import java.net.URLConnection; import java.net.UnknownHostException; import java.security.MessageDigest; import java.security.NoSuchAlgorithmException; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Date; import java.util.HashMap; import java.util.List; import java.util.Map; import java.util.Random; import java.util.StringTokenizer; import java.util.UUID; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.log4j.Logger; import com.yuanlrc.model.StopIp; import com.yuanlrc.model.User; import com.google.gson.Gson; import sun.misc.BASE64Encoder; public class Tool { private static Logger log = Logger.getLogger(Tool.class); //获取带分时间 public static String getyyyyMMddHHmm(){ Date d = new Date(); SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm"); return sdf.format(d); } //获取带毫秒时间 public static String getyyyyMMddHHmmss(){ Date d = new Date(); SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); return sdf.format(d); } //获取带毫秒时间戳 public static String getyyyyMMddHHmmssSSS(){ Date d = new Date(); SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmssSSS"); return sdf.format(d); } //获取日期 public static String getyyyyMMdd(){ Date d = new Date(); SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd"); return sdf.format(d); } //获取日期 public static String getyyyy_MM_dd(){ Date d = new Date(); SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd"); return sdf.format(d); } //前一天 public static String getq_yyyy_MM_dd(){ SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd"); long l=System.currentTimeMillis()-1000l*60*60*24; return sdf.format(l); } //前一月 public static String getqy_yyyy_MM_dd(){ SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd"); long l=System.currentTimeMillis()-(1000l*60*60*24*30); return sdf.format(l); } //前一周 public static String getq_zy_yyyy_MM_dd(){ SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd"); long l=System.currentTimeMillis()-1000l*60*60*24*7; return sdf.format(l); } //获取10000-100000的随机数 public static int getRandom(){ int max=100000; int min=10000; Random random = new Random(); int s = random.nextInt(max)%(max-min+1) + min; return s; } //获取ip--暂时不使用 public static String getIps(HttpServletRequest request) { 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("WL-Proxy-Client-IP"); } if ((ip == null) || (ip.length() == 0) || ("unknown".equalsIgnoreCase(ip))) { ip = request.getRemoteAddr(); } if (ip.equals("127.0.0.1")) { log.error("获取客户ip失败：" + ip); ip = getUUID(); } return ip; } //获取ip public static String getIp(HttpServletRequest request) { String ip = request.getHeader("X-Pounded-For"); if (ip != null) { return ip; } ip = request.getHeader("x-forwarded-for"); if (ip == null) { ip = request.getRemoteAddr(); if (ip.equals("127.0.0.1") || ip.equals("0:0:0:0:0:0:0:1")) { InetAddress address; try { address = InetAddress.getLocalHost(); ip = address.getHostAddress(); } catch (UnknownHostException e) { e.printStackTrace(); } } return ip; } else { StringTokenizer tokenizer = new StringTokenizer(ip, ","); for (int i = 0; i < tokenizer.countTokens() - 1; i++) { tokenizer.nextElement(); } ip = tokenizer.nextToken().trim(); if (ip.equals("")) { ip = null; } } if (ip == null) { ip = "0.0.0.0"; } return ip; } //获取uuid public static String getUUID() { String uuid = UUID.randomUUID().toString().trim().replaceAll("-", ""); return uuid; } public static String MD5(String str){ String newstr=""; try { //确定计算方法 MessageDigest md5= MessageDigest.getInstance("MD5"); BASE64Encoder base64en = new BASE64Encoder(); //加密后的字符串 newstr=base64en.encode(md5.digest(str.getBytes("utf-8"))); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } return newstr; } //判断是否管理员或者版主，如果是返回false，否则true public static boolean isguanliyuan(User user){ if(user.getGroupid()==PublicStatic.GROUPBANZHU||user.getGroupid()==PublicStatic.GROUPADMIN){ return false; }else{ return true; } } public static String sendGet(String url, String param) { String result = ""; BufferedReader in = null; try { String urlNameString=url; if(param.length()>0){ urlNameString=urlNameString+"?" + param; } // System.out.println(urlNameString); URL realUrl = new URL(urlNameString); // 打开和URL之间的连接 URLConnection connection = realUrl.openConnection(); // 设置通用的请求属性 connection.setRequestProperty("accept", "*/*"); connection.setRequestProperty("connection", "Keep-Alive"); connection.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)"); // 建立实际的连接 connection.connect(); // 获取所有响应头字段 Map<String, List<String>> map = connection.getHeaderFields(); // 遍历所有的响应头字段 // for (String key : map.keySet()) { // System.out.println(key + "--->" + map.get(key)); // } // 定义 BufferedReader输入流来读取URL的响应 in = new BufferedReader(new InputStreamReader( connection.getInputStream(),"utf-8")); String line; while ((line = in.readLine()) != null) { result += line; } } catch (Exception e) { System.out.println("发送GET请求出现异常！" + e); e.printStackTrace(); } // 使用finally块来关闭输入流 finally { try { if (in != null) { in.close(); } } catch (Exception e2) { e2.printStackTrace(); } } return result; } //百度插入文件后返回json的处理 public static String updatebaiduresult(HttpServletRequest request,String result){ Gson gson = new Gson(); Map<String, String> map= gson.fromJson(result, Map.class); if(map!=null&&map.get("state")!=null&&"SUCCESS".equals(map.get("state"))){ String url=map.get("url"); url=url.replaceAll("/upload", ""); url=url.replaceAll("/image", ""); StringBuffer requesturl = request.getRequestURL(); String tempContextUrl = requesturl.delete(requesturl.length() - request.getRequestURI().length(), requesturl.length()).append(request.getContextPath()).toString(); url=tempContextUrl+"/file"+url; System.out.println(url); map.put("url", url); result=gson.toJson(map); } return result; } //转移html内容 publ