SpringBoot - 使用Assert校验让业务代码更简洁

/**
 * @author 小工匠
 * @version 1.0
 * @mark: show me the code , change the world
 */

@RestController
@Slf4j 
@RequestMapping("/assert")
public class ArtisanController {

    @Autowired
    private ArtisanDao artisanDao;

    /**
     * Validator只解决了参数自身的数据校验，解决不了参数和业务数据之间校验
     *
     * @param
     * @return
     */
    @PostMapping("/testNoAssert")
    public void testNoAssert(@RequestParam("artisanId") String artisanId) {
        Artisan artisan = artisanDao.selectArtisanReturnNull(artisanId);

        if (artisan == null) {
            throw new IllegalArgumentException("用户不存在");
        }

    }

}

    /**
     * Validator只解决了参数自身的数据校验，解决不了参数和业务数据之间校验
     *
     * @param
     * @return
     */
    @PostMapping("/testWithAssert")
    public void testWithAssert(@RequestParam("artisanId") String artisanId) {
        Artisan artisan = artisanDao.selectArtisanReturnNull(artisanId);

        Assert.notNull(artisan, "用户不存在（Assert抛出）");

    }

    /**
     * Assert异常
     */
    @ExceptionHandler({IllegalArgumentException.class, IllegalStateException.class})
    @ResponseStatus(HttpStatus.INTERNAL_SERVER_ERROR)
    public ResponseData<String> exception(IllegalArgumentException e) {
        return ResponseData.fail(ResponseCode.ILLEGAL_ARGUMENT.getCode(), e.getMessage());
    }