job.setReducerClass(WordCountReducer.class);
import org.springframework.web.multipart.MultipartFile;
System.out.println(integerBox.getItem()); // 输出 10
JFrame frame = new JFrame("Button Demo");
├──7.用30个类手写SpringV2.0版本之MVC实现
System.out.println("obj1.equals(obj3): " + obj1.equals(obj3));