tcuunility.java

为公司做的质量考核接口源码,用spring,hibernate,XML实现,对XML接口编程很有帮助

/**
 * 
 */
package com.jr81.source.xml.source;
import java.io.*; 
import java.nio.ByteBuffer;
import java.nio.CharBuffer;
import java.nio.charset.Charset;
/**
 * @author Administrator
 *
 */
public class TcuUnility {
	
//	从文本文件对象中读取内容并转换为字符数组 
	public static char[] readChars(File file) 
	{ 
	     CharArrayWriter caw = new CharArrayWriter(); 
	     try 
	     { 
	         Reader fr = new FileReader(file); 
	        Reader in = new BufferedReader(fr); 
	         int count = 0; 
	         char[] buf = new char[16384]; 
	        while ((count=in.read(buf)) != -1) { 
	             if (count > 0) caw.write(buf, 0, count); 
	         } 
	         in.close(); 
	     } 
	     catch (Exception e) { e.printStackTrace(); } 
	     return caw.toCharArray(); 
	} 
//	从字符串对象中读取内容并转换为字符数组 
	public static char[] readChars(String string) 
	{ 
	     CharArrayWriter caw = new CharArrayWriter(); 
	     try 
	     { 
	         Reader sr = new StringReader(string.trim()); 
	        Reader in = new BufferedReader(sr); 
	         int count = 0; 
	         char[] buf = new char[16384]; 
	        while ((count=in.read(buf)) != -1) { 
	             if (count > 0) caw.write(buf, 0, count); 
	         } 
	         in.close(); 
	     } 
	     catch (Exception e) { e.printStackTrace(); } 
	     return caw.toCharArray(); 
	} 
//	从二进制文件对象中读取内容并转换为字节数组 
	public static byte[] readBytes(File file) 
	{ 
	     ByteArrayOutputStream baos = new ByteArrayOutputStream(); 
	     try 
	     { 
	         InputStream fis = new FileInputStream(file); 
	         InputStream is = new BufferedInputStream(fis); 
	        int count = 0; 
	         byte[] buf = new byte[16384]; 
	         while ((count=is.read(buf)) != -1) { 
	             if (count > 0) baos.write(buf, 0, count); 
	         } 
	         is.close(); 
	    } 
	     catch (Exception e) { e.printStackTrace(); } 
	     return baos.toByteArray(); 
	} 
//	写字节数组内容到二进制文件 
	public static void writeBytes(File file, byte[] data) { 
	     try { 
	         OutputStream fos = new FileOutputStream(file); 
	         OutputStream os = new BufferedOutputStream(fos); 
	         os.write(data); 
	         os.close(); 
	     } 
	     catch (Exception e) { e.printStackTrace(); } 
	} 
//	写字符数组内容到文本文件 
	public static void writeChars(File file, char[] data) { 
	     try { 
	         Writer fos = new FileWriter(file); 
	         Writer os = new BufferedWriter(fos); 
	        os.write(data); 
	         os.close(); 
	     } 
	     catch (Exception e) { e.printStackTrace(); } 
	} 
	 
	public static byte[] getBytes (char[] chars) {
		Charset cs = Charset.forName ("UTF-8");
		CharBuffer cb = CharBuffer.allocate (chars.length);
		cb.put (chars);
                cb.flip ();
		ByteBuffer bb = cs.encode (cb);
		
		return bb.array();
        }
 
	public static char[] getChars (byte[] bytes) {
		Charset cs = Charset.forName ("UTF-8");
		ByteBuffer bb = ByteBuffer.allocate (bytes.length);
		bb.put (bytes);
                bb.flip ();
		CharBuffer cb = cs.decode (bb);
		
		return cb.array();
	}

	static public int bytes2int(byte[] b)
	{
	         //byte[] b=new byte[]{1,2,3,4}; 
	         int mask=0xff;
	         int temp=0;
	        int res=0;
	        for(int i=0;i<4;i++){
	            res<<=8;
	            temp=b[i]&mask;
	            res|=temp;
	        }
	       return res;
	} 

	static public byte[] int2bytes(int num)
	{
	       byte[] b=new byte[4];
	       for(int i=0;i<4;i++){
	            b[i]=(byte)(num>>>(24-i*8));
	       }
	      return b;
	}
	
	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub

	}

}