[Vue.js]Composition Apiで画面作成(サーバ作成)

package com.example.compositionapi.service;

/**
 * 商品情報クラス
 */
public class Goods{
	private String code;
	private String name;
	private String category;
	private String price;
	
	public Goods(){
	}
	
	public Goods( String code, String name, String category, String price){
		this.code = code;
		this.name = name;
		this.category = category;
		this.price = price;
	}

    public String getCode() {
        return code;
    }

    public void setCode(String code) {
        this.code = code;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }
	
	public String getCategory() {
        return category;
    }

    public void setCategory(String category) {
        this.category = category;
    }
	public String getPrice() {
        return price;
    }

    public void setPrice(String price) {
        this.price = price;
    }
}

package com.example.compositionapi.service;

import java.util.*;
import org.springframework.context.annotation.Scope;
import org.springframework.core.io.ClassPathResource;
import org.springframework.stereotype.Service;
import javax.annotation.*;

/**
* 商品の取得、追加を行うサービス
* シングルトンのサービス
**/
@Scope("singleton")
@Service
public class GoodsService {
	
	private List<Goods> goodsList = new ArrayList<Goods>();
	private int codeCount;
	
	public GoodsService(){
		//初期データとして5件用意
		Goods goods1 = new Goods("001", "データモデリング", "001", "2000");
		Goods goods2 = new Goods("002", "プロジェクトマネージャ", "001", "3000");
		Goods goods3 = new Goods("003", "多変量分析", "001", "2000");
		Goods goods4 = new Goods("004", "Javascript入門", "001", "2500");
		Goods goods5 = new Goods("005", "エルデンリング", "002", "7000");

		goodsList.add( goods1 );
		goodsList.add( goods2 );
		goodsList.add( goods3 );
		goodsList.add( goods4 );
		goodsList.add( goods5 );
		
		codeCount = 5;
	}
	
	/**
	 * 商品情報を取得するメソッド
	**/
	public Goods[] getGoods(){
		return goodsList.toArray( new Goods[]{} );
	}

	/**
	* 該当するIDの商品情報取得
	**/
	public Goods getGoodsById( String id ){
		return goodsList.stream().filter(goods -> goods.getCode().equals( id ) ).toArray( Goods[]::new)[0];
	}
	
	/**
	 * 商品情報を登録するメソッド
	**/
	public void registGoods( Goods regGoods ){
		
		if( regGoods.getCode() != null && regGoods.getCode().length() != 0) {
			Goods[] goodsArr = goodsList.stream().filter(goods -> goods.getCode().equals( regGoods.getCode() ) ).toArray( Goods[]::new);
			if( goodsArr.length != 0 ){
				goodsArr[0].setName( regGoods.getName() );
				goodsArr[0].setCategory( regGoods.getCategory() );
				goodsArr[0].setPrice( regGoods.getPrice() );
			}
		}else{
			codeCount++;
			String code = String.format("%03d", codeCount);
			regGoods.setCode( code );
			goodsList.add( regGoods );
		}
	}
	
}

package com.example.compositionapi.ac;

import java.lang.*;
import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.PostMapping;
import com.example.compositionapi.service.GoodsService;
import com.example.compositionapi.service.Goods;

@RestController
@RequestMapping("/goods")
@CrossOrigin
public class GoodsController {

	@Autowired
	private GoodsService goodsService; //GoodsServiceをDI
	
	/**
	* 商品情報リストを取得
	* @return
	*/
	@RequestMapping(value = "/list", method = RequestMethod.GET)
	public Goods[] getGoodsList() {
		return goodsService.getGoods();
	}

  /**
	* 商品情報をIDを指定して取得
	* @return
	*/
  @RequestMapping(value = "/byId", method = RequestMethod.GET)
	public Goods getGoodsById( String id ){
		return goodsService.getGoodsById( id );
	}

	/**
	* 商品情報登録
	* @return 結果
	*/
	@RequestMapping(value = "/regist", method = RequestMethod.POST)
	public String regist( @RequestBody Goods goods ){

		System.out.println( goods.getCode() );
		System.out.println( goods.getName() );
		System.out.println( goods.getCategory() );
		System.out.println( goods.getPrice() );
		
		goodsService.registGoods( goods );
		
		return "Success";
	}
}