流关闭改进之前:

public void method() {		ByteArrayOutputStream bos = null;		ObjectOutputStream oos = null;		try {            bos = new ByteArrayOutputStream();            oos = new ObjectOutputStream(bos);			.....		} catch (IOException e) {			LogUtil.warn(e);		} finally {			if(bos!=null)			{				try{					bos.flush();					bos.close();				}catch(IOException e){				}			}			if(oos!=null)			{				try{					oos.flush();					oos.close();				}catch(IOException e){				}			}		}	}

改进之后：

public void method() {		ByteArrayOutputStream bos = null;		ObjectOutputStream oos = null;		try {            bos = new ByteArrayOutputStream();			oos = new ObjectOutputStream(bos);            ...........		} catch (IOException e) {			LogUtil.warn(e);		} finally {			StreamUtil.flushAndClose(bos, oos);		}		return null;	}

附上代码：

public class StreamUtil {	private static final Logger logger = LoggerFactory.getLogger(StreamUtil.class);	public static void close(InputStream... is) {		if (is != null && is.length > 0) {			for (InputStream inputStream : is) {				if (inputStream != null) {					try {						inputStream.close();					} catch (IOException e) {					}				}			}		}	}	public static void flushAndClose(OutputStream... os) {		if (os != null && os.length > 0) {			for (OutputStream outputStream : os) {				if (outputStream != null) {					try {						outputStream.flush();						outputStream.close();					} catch (IOException e) {					}				}			}		}	}	public static void flushAndClose(Writer... ws) {		if (ws != null && ws.length > 0) {			for (Writer writer : ws) {				if (writer != null) {					try {						writer.flush();						writer.close();					} catch (IOException e) {					}				}			}		}	}	public static void close(Reader... rs) {		if (rs != null && rs.length > 0) {			for (Reader reader : rs) {				if (reader != null) {					try {						reader.close();					} catch (IOException e) {					}				}			}		}	}	public static void close(Connection... cs) {		if (cs != null && cs.length > 0) {			for (Connection c : cs) {				if (c != null) {					try {						c.close();					} catch (SQLException e) {					}				}			}		}	}}