💖💖 Author: IT Transition Valley Design Exhibition
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Used car trading platform - system introduction

In recent years, China's economic and technological development, the connection between computers and the global Internet, has enabled today's society to enter a computer centered society, and the scientific and technological forces in life can continue to emerge. The current development of the Internet is very rapid from any point of view. Digital technology and intelligent technology bring more convenience and imagination to people's lives.
For the second-hand car trading platform, computer application has incomparable advantages over manual mode, such as fast retrieval, powerful storage, low maintenance cost, and long service life. Only the information-based, digital, and intelligent online trading mode can enable users to grasp the second-hand car market at any time, and facilitate users to find satisfactory products in the complex second-hand car market. Therefore, it is a general trend to develop a second-hand car trading platform.

Used car trading platform - technology selection

Development language: Java
Database: MySQL
System architecture: B/S
Background framework: SpringBoot(Spring+SpringMVC+Mybatis)
Front end: Vue
Design mode: MVC

Used car trading platform - picture display

Used car trading platform - home page

Used car trading platform - vehicle details

Used car trading platform - details
Used car trading platform - vehicle information

Used car trading platform - auction detailsUsed car trading platform - bidding filling

Used car trading platform auction

Used car trading platform - auction completed
Used car trading platform - background management
Used car trading platform - vehicle statistics
Used car trading platform - vehicle management
Used car trading platform - auction vehicles

Used car trading platform - code display

//Used car trading platform - part of the code display of the Controller layer
/**
 * Used car trading platform - sales report
 * Back end interface
 */
@RestController
@RequestMapping("/xiaoshoubaobiao")
public class XiaoshoubaobiaoController {   
    /**
     * Used car trading platform sales query
     */
    @RequestMapping("/query")
    public R query(XiaoshoubaobiaoEntity xiaoshoubaobiao){
        EntityWrapper< XiaoshoubaobiaoEntity> ew = new EntityWrapper< XiaoshoubaobiaoEntity>();
     ew.allEq(MPUtil.allEQMapPre( xiaoshoubaobiao, "xiaoshoubaobiao")); 
    XiaoshoubaobiaoView xiaoshoubaobiaoView =  xiaoshoubaobiaoService.selectView(ew);
    return R.ok("Succeeded in querying sales report").put("data", xiaoshoubaobiaoView);
    }
  
    /**
     * Details of sales administrator terminal of second-hand car trading platform
     */
    @RequestMapping("/info/{id}")
    public R info(@PathVariable("id") String id){
        XiaoshoubaobiaoEntity xiaoshoubaobiao = xiaoshoubaobiaoService.selectById(id);
        return R.ok().put("data", xiaoshoubaobiao);
    }

    /**
     * Details of used car trading platform sales client
     */
    @RequestMapping("/detail/{id}")
    public R detail(@PathVariable("id") String id){
        XiaoshoubaobiaoEntity xiaoshoubaobiao = xiaoshoubaobiaoService.selectById(id);
        return R.ok().put("data", xiaoshoubaobiao);
    }

    /**
     * Saving sales data of second-hand car trading platform
     */
    @RequestMapping("/save")
    public R save(@RequestBody XiaoshoubaobiaoEntity xiaoshoubaobiao, HttpServletRequest request){
      xiaoshoubaobiao.setId(new Date().getTime()+new Double(Math.floor(Math.random()*1000)).longValue());
      //ValidatorUtils.validateEntity(xiaoshoubaobiao);

        xiaoshoubaobiaoService.insert(xiaoshoubaobiao);
        return R.ok();
    }
}

Used car trading platform - conclusion

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