分享一個java對xml,excel,jdbc.properties,讀寫文件，讀寫圖片等實現（1）

//定時器
package ThreadTime;
import java.util.Calendar;
import java.util.Date;
import java.util.Timer;
import java.util.TimerTask;
public class Time{
 public static void main(String[] args){
  //創建Timer類對象implements Runnable
  Timer t = new Timer(); 
     // 定義任務  
  MyTask myTask = new MyTask();
  // 設置任務的執行，5秒後開始，每5秒重複調用一次
  t.schedule(myTask, 5000, 5000);
 }
 
 
 
 
 
 public static void timer1() {
        Timer timer = new Timer();
        timer.schedule(new TimerTask() {
            public void run() {
                System.out.println("-------設定要指定任務--------");
            }
        }, 2000);// 設定指定的時間time,此處爲2000毫秒
    }
 public static void timer2() {
        Timer timer = new Timer();
        timer.schedule(new TimerTask() {
            public void run() {
                System.out.println("-------設定要指定任務--------");
            }
        }, 1000, 5000);
    }
  public static void timer3() {
         Timer timer = new Timer();
         timer.scheduleAtFixedRate(new TimerTask() {
             public void run() {
                 System.out.println("-------設定要指定任務--------");
             }
         }, 1000, 2000);
     }
  public static void timer4() {
         Calendar calendar = Calendar.getInstance();
         calendar.set(Calendar.HOUR_OF_DAY, 12); // 控制時
         calendar.set(Calendar.MINUTE, 0);       // 控制分
         calendar.set(Calendar.SECOND, 0);       // 控制秒
         Date time = calendar.getTime();         // 得出執行任務的時間,此處爲今天的12：00：00
         Timer timer = new Timer();
         timer.scheduleAtFixedRate(new TimerTask() {
             public void run() {
                 System.out.println("-------設定要指定任務--------");
             }
         }, time, 1000 * 60 * 60 * 24);// 這裏設定將延時天天固定執行
     }
 }


-----------------------------------

package ThreadTime;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.TimerTask;
import java.util.UUID;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import mytest.OprationxmlVO;
import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFCellStyle;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.w3c.dom.Document;
import org.w3c.dom.NodeList;
import sun.misc.BASE64Decoder;
import sun.misc.BASE64Encoder;
import PDFTest.CreatePdfVO;
import com.tecsun.framework.unitl.Report;
public class MyTask extends TimerTask{
 //TimeRun timeRun = new TimeRun();
 public void run(){
  try {
   isJudge("D:/test");
  } catch (IOException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (SQLException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (ClassNotFoundException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
 }
 
 public static void isJudge(String path) throws IOException, SQLException, ClassNotFoundException{
    //獲取該文件夾下的
    File file=new File(path);
    File[] tempList = file.listFiles();
    System.out.println("該目錄下對象個數："+tempList.length);
    InputStream fis = null;
    //把圖片編碼
    BASE64Encoder encoder = new BASE64Encoder();
    File [] files = file.listFiles();
    OutputStream outputStream=new FileOutputStream("D:/test/photo.txt");
    for (int i = 0; i < tempList.length; i++) {
      fis = new FileInputStream(tempList[i]);
    //imageByteArray= IOUtils.toByteArray(fis);
      byte[] imageByteArray  = new byte[fis.available()];
    fis.read(imageByteArray); 
    encoder.encode(imageByteArray);
    //System.out.println("字節流："+encoder);
    try{
       if (tempList[i].isFile()) {
        //System.out.println("文     件："+tempList[i]);
        String fileName = tempList[i].getName();
        //當文件是圖片文件時將圖片轉換成64位字節流，而後讀入photo.txt
        if(fileName.trim().toLowerCase().endsWith(".png")||fileName.trim().toLowerCase().endsWith(".jpg")||fileName.trim().toLowerCase().endsWith(".jpeg")) {
       //System.out.println("是圖片"+i+"文件"+String.valueOf(encoder));
        // outputStream.write(imageByteArray);
       //刪除全部的圖片
       /*File fDel = new File(fileName);        
       fDel.delete();*/
         //txtRead();
         
      }
        //當文件是.xml文件時
        if(fileName.trim().toLowerCase().endsWith(".xml")) {
         //System.out.println("是圖片"+i+".xml文件"+fileName);
         if(fileName.equals("operationxml.xml")){
          //數據寫入excel
          //xmlRead_writeExcel(fileName);
         //數據寫入PDF
          System.out.println("fileName：--------------------"+fileName);
         xmlRead_writePdf(fileName,"D:/test/content.jasper","D:/test/");
         }
        }
        //當文件是excel文件時
        /*if(fileName.trim().toLowerCase().endsWith(".xls")||fileName.trim().toLowerCase().endsWith(".xlsx")) {
         System.out.println("是excel文件"+fileName);
         String excelFileName = new String("D:/test/"+fileName);
         int coloum = 0; // 好比你要獲取第1列
             try {
                 HSSFWorkbook workbook = new HSSFWorkbook(new FileInputStream(excelFileName));
                 HSSFSheet sheet = workbook.getSheet("Sheet1");//建立一個Sheet1
                 //jdbc鏈接mysql 
                 
                     * MySQL的JDBC URL編寫方式：jdbc:mysql://主機名稱：鏈接端口/數據庫的名稱?參數=值
                     * 避免中文亂碼要指定useUnicode和characterEncoding
                     * 執行數據庫操做以前要在數據庫管理系統上建立一個數據庫，名字本身定，
                     * 下面語句以前就要先建立javademo數據庫
                     * 
                    Connection conn = null;
                    String sql;
                          String url = "jdbc:mysql://localhost:3306/test?user=root&password=zhxush&useUnicode=true&characterEncoding=UTF8";
                 // 之因此要使用下面這條語句，是由於要使用MySQL的驅動，因此咱們要把它驅動起來，
                             // 能夠經過Class.forName把它加載進去，也能夠經過初始化來驅動起來，下面三種形式均可以
                             Class.forName("com.mysql.jdbc.Driver");// 動態加載mysql驅動
                             // com.mysql.jdbc.Driver driver = new com.mysql.jdbc.Driver();
                             // new com.mysql.jdbc.Driver();
                             System.out.println("成功加載MySQL驅動程序");
                             // 一個Connection表明一個數據庫鏈接
                             conn = DriverManager.getConnection(url);
                             // Statement裏面帶有不少方法，好比executeUpdate能夠實現插入，更新和刪除等
                             Statement stmt = conn.createStatement();
                             sql = "create table student(id char(100),name varchar(20),age varchar(20),sex varchar(20),primary key(id))";
                             int result = stmt.executeUpdate(sql);// executeUpdate語句會返回一個受影響的行數，若是返回-1就沒有成功
                             System.out.println("建立數據表成 功");
                 for (int num = 0; num <= sheet.getLastRowNum(); num++) {
                     HSSFRow row = sheet.getRow(num);
                     if (null == row) {
                         continue;
                     } else {
                         //if(row.getCell(coloum)!=null&&i==1){
                      OprationExcelVO oprationExcelVO = new OprationExcelVO();
                      //List<OprationExcelVO> listExcel = new ArrayList<OprationExcelVO>();
                          HSSFCell cell = row.getCell((int) coloum);
                             row.getCell(coloum).setCellType(cell.CELL_TYPE_STRING);
                             System.out.println("id="+row.getCell(coloum).getStringCellValue());
                             String id = row.getCell(coloum).getStringCellValue();
                             //cell.setCellValue("30");
                             //System.out.println(row.getCell(coloum).getStringCellValue());
                             coloum++;
                             HSSFCell cell1 = row.getCell((int) coloum);
                             row.getCell(coloum).setCellType(cell1.CELL_TYPE_STRING);
                             System.out.println("name="+row.getCell(coloum).getStringCellValue());
                             String name = row.getCell(coloum).getStringCellValue();
                             coloum++;
                             HSSFCell cell2 = row.getCell((int) coloum);
                             row.getCell(coloum).setCellType(cell2.CELL_TYPE_STRING);
                             System.out.println("age="+row.getCell(coloum).getStringCellValue());
                             String age = row.getCell(coloum).getStringCellValue();
                             coloum++;
                             HSSFCell cell3 = row.getCell((int) coloum);
                             row.getCell(coloum).setCellType(cell3.CELL_TYPE_STRING);
                             System.out.println("sex="+row.getCell(coloum).getStringCellValue());
                             String sex = row.getCell(coloum).getStringCellValue();
                             //cell1.setCellValue("未知");
                             //System.out.println(row.getCell(coloum).getStringCellValue());
                        //}
                             try {
                                 if (result != -1) {
                                     sql = "insert into student(id,name,age,sex) values('"+id+"','"+name+"','"+age+"','"+sex+"')";
                                     result = stmt.executeUpdate(sql);
                                     sql = "insert into student(NO,name) values('2012002','周小俊')";
                                     result = stmt.executeUpdate(sql);
                                     sql = "select * from student";
                                     ResultSet rs = stmt.executeQuery(sql);// executeQuery會返回結果的集合，不然返回空值
                                     System.out.println("id\t\t\t\t\t\t姓名\t\t年齡\t\t性別");
                                     while (rs.next()) {
                                         System.out.println(rs.getString(1) + "\t" + rs.getString(2)+"\t"+rs.getString(3)+"\t"+rs.getString(4));// 入若是返回的是int類型能夠用getInt()
                                     }
                                 }
                             } catch (SQLException e) {
                                 System.out.println("MySQL操做錯誤");
                                 e.printStackTrace();
                             } catch (Exception e) {
                                 e.printStackTrace();
                             }
                             coloum = 0;
                     }
                 }
                 FileOutputStream out = null;
                 try {
                     out = new FileOutputStream(excelFileName);
                     workbook.write(out);
                 } catch (IOException e) {
                     e.printStackTrace();
                 } finally {
                        out.close();
                        //conn.close();
                 }
             } catch (FileNotFoundException e) {
                 e.printStackTrace();
             } catch (IOException e) {
                 e.printStackTrace();
             }
        }*/
       }
       if (tempList[i].isDirectory()) {
        System.out.println("文件夾："+tempList[i]);
       }
    //  } catch (FileNotFoundException e) {
     // TODO Auto-generated catch block
     //e.printStackTrace();
    }finally{
     fis.close();
     imageByteArray.clone();
     
    }
    }
    outputStream.flush();  
    outputStream.close();
 }
 public static void txtRead() throws IOException{
  //OutputStream outputStream = new FileOutputStream("D:/test/photo.txt");
  InputStream inputStream = new FileInputStream("D:/test/photo.txt");
  byte[] imageByteArray  = new byte[inputStream.available()];
  inputStream.read(imageByteArray); 
   BASE64Decoder decoder = new BASE64Decoder();
  byte[] byteTxt = decoder.decodeBuffer(inputStream);
  OutputStream outputStream = new FileOutputStream("D:/test1/");
  outputStream.write(byteTxt);
  outputStream.flush();
  outputStream.close();
  
 }
 //把xml獲取出來的數據寫入到PDF
 public static void xmlRead_writePdf(String xmlPath,String modelFile,String tempDir){
  //System.out.println("xmlPath"+xmlPath);
   String strPath = new String("D:/test/"+xmlPath);
   List<OprationxmlVO> contentValueList = new ArrayList<OprationxmlVO>();
         try{
             //讀取傳入的路徑，返回一個document對象
             Document document = loadInit(strPath);
             //獲取葉節點
             NodeList contentNodeList = document.getElementsByTagName("content");
             //遍歷葉節點
             short number = 0;
             Map<String, String> reportData = new HashMap<String, String>();
             for(int i=0; i<contentNodeList.getLength(); i++){
              /*獲取xml全部的數據*/
                 String idNode = document.getElementsByTagName("ID").item(i).getFirstChild().getNodeValue();
                 String nameNode = document.getElementsByTagName("name").item(i).getFirstChild().getNodeValue();
                 String ageNode = document.getElementsByTagName("age").item(i).getFirstChild().getNodeValue();
                 String sexNode = document.getElementsByTagName("sex").item(i).getFirstChild().getNodeValue();
                 System.out.println("id="+idNode);
                 System.out.println("name="+nameNode);
                 System.out.println("age="+ageNode);
                 System.out.println("sex="+sexNode);
                 //把數據寫入pdf
                 File tempDirFile = new File(tempDir);
              if (!tempDirFile.exists()) {
                  tempDirFile.mkdirs();
              }
              //CreatePdfVO createPdfVO = new CreatePdfVO();
              /*reportData.put("id",  CreatePDF.isEmptyStr(createPdfVO.getName())?"":createPdfVO.getName());
              reportData.put("name", CreatePDF.isEmptyStr(createPdfVO.getName())?"":createPdfVO.getName());
              reportData.put("age",  CreatePDF.isEmptyStr(createPdfVO.getName())?"":createPdfVO.getName());
              reportData.put("sex",  CreatePDF.isEmptyStr(createPdfVO.getName())?"":createPdfVO.getName());*/
              reportData.put("id",  idNode);
              reportData.put("name", nameNode); 
              reportData.put("age",  ageNode);
              reportData.put("sex",  sexNode);
              //添加數據
              //String pdfPath = tempDir +"content"+new SimpleDateFormat("yyyyMMddHHmmsss").format(new Date()) + ".pdf";
              String pdfPath = tempDir +"content.pdf";
              boolean  is;
              try {
               System.out.println("modelFile="+modelFile);
               System.out.println("pdfPath="+pdfPath);
          is= Report.createPDFReport(modelFile, pdfPath, reportData);
          System.out.println("生成PDF成功！");
        } catch (Exception e) {
         // TODO Auto-generated catch block
         e.printStackTrace();
         System.out.println("生成PDF異常！");
         
        }
            
             }
         }catch(Exception e){
             e.printStackTrace();
             System.out.println(e.getMessage());
         }
 }
 public static boolean isEmptyStr(Object str){
        return str == null || str.toString().trim().length() < 1 ? true : false;
    }
    public static String objectToString(Object str){
        if (null == str){
            return null;
        }else{
            return str.toString();
        }
    }
    //把xml獲取出來的數據寫入到excel
 public static void xmlRead_writeExcel(String xmlPath)throws IOException{
  //System.out.println("xmlPath"+xmlPath);
  String strPath = new String("D:/test/"+xmlPath);
  List<OprationxmlVO> contentValueList = new ArrayList<OprationxmlVO>();
        try{
            //讀取傳入的路徑，返回一個document對象
            Document document = loadInit(strPath);
            //獲取葉節點
            NodeList contentNodeList = document.getElementsByTagName("content");
            //遍歷葉節點
            short number = 0;
          //InputStream isExcel = new FileInputStream(excelNamePath);
   // 建立Excel的工做書冊 Workbook,對應到一個excel文檔
   HSSFWorkbook wb = new HSSFWorkbook();
   // 建立Excel的工做sheet,對應到一個excel文檔的tab  
      HSSFSheet sheet = wb.createSheet("sheet1");
            for(int i=0; i<contentNodeList.getLength(); i++){
             /*獲取xml全部的數據*/
                String idNode = document.getElementsByTagName("ID").item(i).getFirstChild().getNodeValue();
                String nameNode = document.getElementsByTagName("name").item(i).getFirstChild().getNodeValue();
                String ageNode = document.getElementsByTagName("age").item(i).getFirstChild().getNodeValue();
                String sexNade = document.getElementsByTagName("sex").item(i).getFirstChild().getNodeValue();
                //把數據寫入excel
                try {
           HSSFCellStyle style = wb.createCellStyle();
           style.setAlignment(HSSFCellStyle.ALIGN_CENTER); // 建立一個居中格式
           HSSFCell cell=null;
           HSSFRow row1=null;
           String id = new String(UUID.randomUUID().toString());
           row1 = sheet.createRow((short) number);//開始第幾行輸出
           cell = row1.createCell((short) 0);//在第幾行輸出
           cell.setCellStyle(style);
           cell.setCellValue(idNode);
           
           cell = row1.createCell((short) 1);
           cell.setCellStyle(style);
           cell.setCellValue(nameNode);
           
           cell = row1.createCell((short) 2);
           cell.setCellStyle(style);
           cell.setCellValue(ageNode);
           
           cell = row1.createCell((short) 3);
           cell.setCellStyle(style);
           cell.setCellValue(sexNade);
           
           number = (short) (number+1);
           
           FileOutputStream fout = new FileOutputStream("D:/test/operationExcel.xls");
           wb.write(fout);
           System.out.println("文件已寫入!");
           fout.close();
          } catch (FileNotFoundException e) {
           // TODO Auto-generated catch block\
           e.printStackTrace();
           System.out.println("文件寫入異常!");
          }
            }
        }catch(Exception e){
            e.printStackTrace();
            System.out.println(e.getMessage());
        }
 }
  public static Document loadInit(String filePath){
         Document document = null;
         try{
             DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
             DocumentBuilder builder = factory.newDocumentBuilder();
             document = builder.parse(new File(filePath));
             document.normalize();
             return document;
         }catch(Exception e){
             e.printStackTrace();
             System.out.println(e.getMessage());
             return null;
         }
     }
 /*public static void main(String[] args) {
 getname("Demo.java");
 getname("Demo1.java.txt");
 
}
  public static void getname(String filename)
  {   //判斷給定的文件名是否爲空，而且長度要大於0
          if ((filename!=null)&&(filename.length()>0))
          {
                  //查找字符‘.‘出現的最後一個索引位置
                 int x = filename.lastIndexOf(".");
                  //判斷此索引是否存在，而且不是最後一個字符
                 if ((x>-1)&&(x<filename.length()-1))
                  {
                          System.out.println("已知程序的擴展名爲:"+filename.substring(x+1));
                          //調用subString方法從索引位開始截取到最後，而且不截取字符'.'
                  }
          }
          else 
          {
                  System.out.println("給定文件名錯誤");
          }
  }*/
}


------------------------------------------------ 
package ThreadTime;
import java.io.File;
import java.util.HashMap;
import java.util.Map;
import com.tecsun.framework.unitl.Report;
public class test{
 public static void main(String[] args) {
  xmlRead_writePdf();
 }
 public static void xmlRead_writePdf(){
        Map<String, String> reportData = new HashMap<String, String>();
            //把數據寫入pdf
         reportData.put("id",  "id");
         reportData.put("name", "name"); 
         reportData.put("age",  "age");
         reportData.put("sex",  "sex");
         boolean  is;
         try {
     is= Report.createPDFReport("D:/test/content.jasper", "D:/content.pdf", reportData);
     System.out.println("生成PDF成功！");
   } catch (Exception e) {
    e.printStackTrace();
    System.out.println("生成PDF異常！");
    
   }
 }
} 
   



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