public interface IProductDao {
@Select("select * from product")
List findAll() throws Exception;
}
5.编写实体层
package com.gxd.ssm.domain;
import com.gxd.ssm.utils.DateUtils;
import java.util.Date;
public class Product {
private String id; // 主键
private String productNum; // 编号 唯一
private String productName; // 名称
private String cityName; // 出发城市
private Date departureTime; // 出发时间
private String departureTimeStr;
private double productPrice; // 产品价格
private String productDesc; // 产品描述
private Integer productStatus; // 状态 0 关闭 1 开启
private String productStatusStr;
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getProductNum() {
return productNum;
}
public void setProductNum(String productNum) {
this.productNum = productNum;
}
public String getProductName() {
return productName;
}
public void setProductName(String productName) {
this.productName = productName;
}
public String getCityName() {
return cityName;
}
public void setCityName(String cityName) {
this.cityName = cityName;
}
public Date getDepartureTime() {
return departureTime;
}
public void setDepartureTime(Date departureTime) {
this.departureTime = departureTime;
}
public String getDepartureTimeStr() {
if (departureTime!=null)
{
departureTimeStr = DateUtils.date2String(departureTime,"yyyy-MM-dd HH:mm:ss");
}
return departureTimeStr;
}
public void setDepartureTimeStr(String departureTimeStr) {
this.departureTimeStr = departureTimeStr;
}
public double getProductPrice() {
return productPrice;
}
public void setProductPrice(double productPrice) {
this.productPrice = productPrice;
}
public String getProductDesc() {
return productDesc;
}
public void setProductDesc(String productDesc) {
this.productDesc = productDesc;
}
public Integer getProductStatus() {
return productStatus;
}
public void setProductStatus(Integer productStatus) {
this.productStatus = productStatus;
}
public String getProductStatusStr() {
if(productStatus != null)
{
if(productStatus==0)
{
productStatusStr="关闭";
}
if(productStatus==1)
{
productStatusStr="开启";
}
}
return productStatusStr;
}
public void setProductStatusStr(String productStatusStr) {
this.productStatusStr = productStatusStr;
}
}
6.编写service层
@Service
@Transactional
public class ProductServiceImpl implements IProductService {
@Autowired
IProductDao productDao;
@Override
public List findAll() throws Exception {
return productDao.findAll();
}
}
接口
public interface IProductService {
List findAll() throws Exception;
}
7.编写utils层
public class DateUtils {
//日期转换成字符串
public static String date2String(Date date, String patt)
{
SimpleDateFormat sdf = new SimpleDateFormat(patt);
String format = sdf.format(date);
return format;
}
//字符串转换成日期
public static Date String2Date(String str,String patt) throws ParseException {
SimpleDateFormat sdf = new SimpleDateFormat(patt);
Date date = sdf.parse(str);
return date;
}
}
8.编写web层(我用AdminLTE框架) 1>控制器
@Controller
@RequestMapping("/product")
public class ProductController {
@Autowired
IProductService productService;
@RequestMapping("/findAll.do")
public ModelAndView findAll() throws Exception {
ModelAndView mv = new ModelAndView();
List ps = productService.findAll();
mv.addObject("productList",ps);
mv.setViewName("product-list");
return mv;
}
}
--分组取最大最小常用sql--测试环境if OBJECT_ID('tb') is not null drop table tb;gocreate table tb( col1 int, col2 int, Fcount int)insert into tbselect 11,20,1 union allselect 11,22,1 union allselect 1
一、函数的使用
1.1、定义函数变量
var vName = funcation(params){
}
1.2、函数的调用
函数变量的调用： vName(params);
函数定义时自发调用：(function(params){})(params);
1.3、函数中变量赋值
var a = 'a';
var ff
Mac mini 型号: MC270CH-A RMB:5,688
Apple 对windows的产品支持不好,有以下问题:
1.装完了xp,发现机身很热虽然没有运行任何程序！貌似显卡跑游戏发热一样，按照那样的发热量,那部机子损耗很大,使用寿命受到严重的影响!
2.反观安装了Mac os的展示机，发热量很小，运行了1天温度也没有那么高
&nbs
Follow up for "Search in Rotated Sorted Array":What if duplicates are allowed?
Would this affect the run-time complexity? How and why?
Write a function to determine if a given ta
图一
图二
image.png
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修改核心文件
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