Spring笔记和小结.docVIP

Spring笔记和小结（1） （1）这本书是一个以代码和实战为主的书，全书在构建一个过山车订购系统，体育商店可以用来对它们的过山车进行管理和订购。第一节作者先硬编码了两个有依赖关系的类CommandLineView.java和RentABike.java。我们先看看源代码：Example 1-1. Bike.java public class Bike {??private String manufacturer;??private String model;??private int frame;??private String serialNo;??private double weight;??private String status;??public Bike(String manufacturer, String model, int frame, ??????????String serialNo, double weight, String status) {????this.manufacturer = manufacturer;????this.model = model;????this.frame = frame;????this.serialNo = serialNo;????this.weight = weight;????this.status = status;??}??public String toString( ) {????return Bike : +??????????manufacturer -- + manufacturer +??????????\n: model -- + model +??????????\n: frame -- + frame +??????????\n: serialNo -- + serialNo +??????????\n: weight -- + weight +??????????\n: status -- + status +??????????.\n;??}????public String getManufacturer( ) { return manufacturer; }??public void setManufacturer(String manufacturer) {????this.manufacturer = manufacturer;??}??public String getModel( ) { return model; }??public void setModel(String model) { this.model = model; }??public int getFrame( ) { return frame; }??public void setFrame(int frame) { this.frame = frame; }??public String getSerialNo( ) { return serialNo; }??public void setSerialNo(String serialNo) { this.serialNo = serialNo; }??public double getWeight( ) { return weight; }??public void setWeight(double weight) { this.weight = weight; }??public String getStatus( ) { return status; }??public void setStatus(String status) { this.status = status; }} 可以看出，Bike.java是一个普通的JAVABEAN，用来表述一个过山车实体，包括制造商，型号，规格，序列号，重量和状态等树型。Example 1-2. RentABike.java import java.util.*;public class RentABike {??private String storeName;??final List bikes = new ArrayList( );??public RentABike(String storeName) {????this.storeName = storeName;//商店名??//添加过山车到数组????bikes.add(new Bike(Shimano, Roadmaster, 2