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商品评论的Java代码 商品评论的java代码有哪些

Java代码实现商品的审核问题?

你这个只是一个方法,而且是数据分析,应该放在服务层,而且你这里还没有返回值,怎么告诉控制层?

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第一:服务层:

public String audit(Long spuId,String status) {

Spu spu =new Spu();

spu.setId(spuId);

spu.setStatus(status);

if ("1".equals(status)){//审核通过

spu.setIsMarketable("1");//自动上架

}else{

如果不是,怎么怎么样

}

spuMapper.updateByPrimaryKeySelective(spu);

return 某个状态值

}

第二:控制层:

前端传进来参数,调用服务层方法,返回前端

java 商品 系统 代码

package entity;

public class Market {

private int id;//id

private int num;//数量

private String goods;//商品

private double price;//价格

public Market(int id, int num, String goods, double price) {

super();

this.id = id;

this.num = num;

this.goods = goods;

this.price = price;

}

public int getId() {

return id;

}

public void setId(int id) {

this.id = id;

}

public int getNum() {

return num;

}

public void setNum(int num) {

this.num = num;

}

public String getGoods() {

return goods;

}

public void setGoods(String goods) {

this.goods = goods;

}

public double getPrice() {

return price;

}

public void setPrice(double price) {

this.price = price;

}

public double calc( ){

double sum=price*num;

System.out.println("您消费共计:"+sum+"¥");

return sum;

}

}

package test;

import java.util.HashMap;

import java.util.Map;

import java.util.Scanner;

import entity.Market;

public class Test {

private static MapInteger,Market goods=new HashMapInteger, Market();

public static void main(String[] args) {

System.out.println("-------超市计价系统-------");

String goods1="可口可乐";

String goods2="爆米花";

String goods3="益达";

printTable("编号","商品","价格");

printTable("1",goods1,"3.0¥");

printTable("2",goods2,"5.0¥");

printTable("3",goods3,"10.0¥");

goods.put(1, new Market(1, 1, goods1, 3.0));

goods.put(2, new Market(2, 1, goods2, 5.0));

goods.put(3, new Market(3, 1, goods3, 10.0));

Scanner input = new Scanner(System.in);

System.out.println("请输入商品的编号:");

int num = input.nextInt();

System.out.println("请输入商品的数量");

int amount = input.nextInt();

Market market = goods.get(num);

market.setNum(amount);

market.calc();

}

private static void printTable(String row1,String row2,String row3 ) {

System.out.print(row1);

int times=12;

if (row2!="商品") {

times=5;

}

for (int i = 0; i times; i++) {

System.out.print(" ");

}

System.out.print(row2);

for (int i = 0; i 10; i++) {

System.out.print(" ");

}

System.out.print(row3);

System.out.println("\n");

}

}

//测试结果:

-------超市计价系统-------

编号 商品 价格

1 可口可乐 3.0¥

2 爆米花 5.0¥

3 益达 10.0¥

请输入商品的编号:

3

请输入商品的数量

5

您消费共计:50.0¥

问一个关于java的程序代码

import java.util.Scanner;

public class colPrice{

public static void main(String[] args){

double[] price = new double[10];

double totalPrice = 0;

System.out.println("请输入商品价格:");

for(int i=0;i10;i++){

System.out.print(i+1+": ");

Scanner in = new Scanner( System.in);

price[i] = in.nextDouble();

}

System.out.println("");

for(int i= 0;iprice.length;i++){

totalPrice+=price[i];

}

System.out.println("商品总价格是:"+totalPrice);

}

}


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