try with resource可以查看编译后的字节码，会分别在程序结束末尾调用close，和抛异常后调用close
package test_httpserver;
import java.io.Closeable;
import java.io.IOException;
public class TestClose implements Closeable{
@Override
public void close() throws IOException {
System.out.println("close");
}
}
package test_httpserver;
public class TestTry {
public static void main(String args[]) {
try (TestClose testClose = new TestClose()){
} catch (Exception e) {
// TODO: handle exception
}
System.out.println("end");
}
}