JDK8的关流方式

1.JDK7的关流方式

OutputStream out = null;
try {
	out = new FileOutputStream("");
	// ...操作流代码
} catch (Exception e) {
	e.printStackTrace();
} finally {
	try {
		if (out != null) {
			out.close();
		}
	} catch (Exception e) {
		e.printStackTrace();
	}
}

2.JDK8的关流方式

try (OutputStream out = new FileOutputStream("")){
	// ...操作流代码
} catch (Exception e) {
	throw e;
}