我正在编写一个连接到网站并从中读取一行的应用程序.我是这样做的:
try{
URLConnection connection = new URL("www.example.com").openConnection();
BufferedReader rd = new BufferedReader(new InputStreamReader(connection.getInputStream()));
String response = rd.readLine();
rd.close();
}catch (Exception e) {
//exception handling
}
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好吗?我的意思是,我在最后一行关闭了BufferedReader,但我没有关闭InputStreamReader.我应该从connection.getInputStream创建一个独立的InputStreamReader,还是从独立的InputStreamReader创建一个BufferedReader,而不是关闭所有两个读者?我认为最好将结束方法放在finally块中,如下所示:
InputStreamReader isr = null;
BufferedReader br = null;
try{
URLConnection connection = new URL("www.example.com").openConnection();
isr = new InputStreamReader(connection.getInputStream());
br = new BufferedReader(isr);
String response = br.readLine();
}catch (Exception e) {
//exception handling
}finally{
br.close();
isr.close();
}
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但它很难看,因为关闭方法可以抛出异常,所以我必须处理或抛出它.
哪种解决方案更好?或者什么是最好的解决方案?