基于SSH2增删改查_工具类Util(5)

删除文件的工具类：↓DeleteFileUtil.java

package com.ssh02.util;
import java.io.File;
public class DeleteFileUtil {
  public static boolean deleteFilePath(String path,String[] paths){
      File f= null;
      if(path != null){
          f= new File(path);
      if(f.exists()){
          f.delete();
          return true;
      }
      }
      if(paths.length >= 1){
          for(int i=0; i 
  

 
  

 
  
随机文件名工具：IPTimeRandom.java （这工具不陌生）
 
  

 
  
 
  
package com.ssh02.util;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Random;
public class IPTimeRandom {
  private SimpleDateFormat sdf = null;
  private String ip = null;
  public IPTimeRandom(){
                                                                                                         
  }
  public IPTimeRandom(String ip){
      this.ip = ip;
  }
  public String getIPTimeRandom(){
      StringBuffer buf = new StringBuffer();
      if(this.ip != null){
          String s[] = this.ip.split("\\:");
          for(int i=0; i 
  

 
  
Md5加密处理工具：↓Md5Util.java
 
  
package com.ssh02.util;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
public class Md5Util {
   public static String md5s(String newstr){
       String str = null;
       MessageDigest md = null;
       try {
        md = MessageDigest.getInstance("MD5");
        md.update(newstr.getBytes());
        byte[] b = md.digest();
        int i;
        StringBuffer buf = new StringBuffer("");
        for(int j = 0; j 
  

 
  
文件上传工具：↓Upload.java
 
  
package com.ssh02.util;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
public class Upload {
  public static void is(File file, String uploadPath, String newFileName) throws Exception{
      FileInputStream is = new FileInputStream(file);
      FileOutputStream os = new FileOutputStream(uploadPath + "/" + newFileName);
      byte[] buff = new byte[1024];
      int newint = 0;
      while((newint = is.read(buff))> 0){
          os.write(buff, 0, newint);
      }
      is.close();
      os.close();
  }
}
 
  

 
  
连接mysql工具：↓Upload.java
 
  
package com.itjiandan.util;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
public class DBManager {
   static
   {
       try {
        Class.forName("com.mysql.jdbc.Driver");
    } catch (ClassNotFoundException e) {
        e.printStackTrace();
    }
   }
   public static Connection getConnection(){
       Connection conn = null;
       try {
        conn = DriverManager.getConnection("jdbc:mysql://localhost/itjiandan?useUnicode=true&characterEncoding=utf-8",
                "root","root");
    } catch (SQLException e) {
        e.printStackTrace();
    }
       return conn;
   }
   public static void close(Connection conn,Statement pre,ResultSet set){
                               
        try {
            if(conn != null)conn.close();
            if(pre != null)pre.close();
            if(set != null)set.close();
        } catch (SQLException e) {
            e.printStackTrace();
        }
   }
}
 
  

 
  

 
  

 
  

 
  
利用上传插件：commons-fileupload-1.3.jar  commons-io-2.4.jar
 
  

 
  

 
  
package com.itjiandan.util;
import java.io.File;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import org.apache.tomcat.util.http.fileupload.FileItem;
import org.apache.tomcat.util.http.fileupload.disk.DiskFileItemFactory;
import org.apache.tomcat.util.http.fileupload.servlet.ServletFileUpload;
public class FileLoadUtil {
  public static Map fileLoad(HttpServletRequest req, String path){
        DiskFileItemFactory factory = new DiskFileItemFactory();
        ServletFileUpload upload = new ServletFileUpload(factory);
        Map myFMap = new HashMap();
        try {
            List items = upload.parseRequest(req);
            Iterator iter = items.iterator();
               
            while(iter.hasNext()){
                FileItem item = iter.next();
                    if(item.isFormField()){
                        System.out.println("表单参数名:" + item.getFieldName() + "，表单参数值:" + item.getString("utf-8"));
                        myFMap.put(item.getFieldName(), item.getString("utf-8"));
                    }else{
                            myFMap.put("p_w_picpathname", item.getName().split("\\.")[1]);
                            //System.out.println(item.getName().split("\\.")[1]);
                            File newfile = new File(path + item.getName().split("\\.")[1]);
                            item.write(newfile);
                    } 
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
         
      return myFMap;
  }
}