springboot基礎学習

， 。

. thymeleaf

controller ， model， ， Controller :

@Controller
@RequestMapping(value = "/")
public class TestController {

    @RequestMapping(value = "/hello")
    public String hello(Model model) {
        model.addAttribute("hello", "  ");
        return "hello";
    }
}

Controller， :
WebMvcConfigurerAdapter を り えることになります。カバー addViewControllers：

/**
 *               ，   Controller
 * @param registry
 */
@Override
public void addViewControllers(ViewControllerRegistry registry) {
    registry.addViewController("index").setViewName("/index");
    super.addViewControllers(registry);
}

@Component
public class TestControllerInterceptor implements HandlerInterceptor {

    @Autowired
    private TestService testService;

    /**
     *   controller      
     * @param request
     * @param response
     * @param handler
     * @return    false    controller    true   controller
     * @throws Exception
     */
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        System.out.println(request.getRequestURI());

//        if ("/api/test/all".equals(request.getRequestURI())) return false;
        return true;
    }

    /**
     *   controller     ，           ，        model  
     * @param request
     * @param response
     * @param handler
     * @param modelAndView
     * @throws Exception
     */
    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
        List list = testService.selectAll();
        System.out.println(list);
    }

    /**
     *            
     * @param request
     * @param response
     * @param handler
     * @param ex
     * @throws Exception
     */
    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {

    }
}

@Autowired
private TestControllerInterceptor testControllerInterceptor;

/**
 *      
 * @param registry
 */
@Override
public void addInterceptors(InterceptorRegistry registry) {
    registry.addInterceptor(testControllerInterceptor).addPathPatterns("/api/test/**");
    super.addInterceptors(registry);
}

@RequestMapping(value = "/saveOrUpdate", method = RequestMethod.POST)
public Object saveOrUpdate(@RequestBody @Validated Test test) {
    if (test.getId() != null) {
        testService.update(test);
    }
    else {
        test.setId((int)(Math.random() * 100));
        testService.insert(test);
    }
    return MessageReturn.success("  ");
}

             
@Valid             ，             
@Null             null
@NotNull               null
@AssertTrue           true
@AssertFalse              false
@Min(value)              ，              
@Max(value)              ，              
@DecimalMin(value)               ，              
@DecimalMax(value)               ，              
@Size(max, min)                   
@Digits (integer, fraction)              ，            
@Past                   
@Future                 
@Pattern(value)                   

2. Hibernate Validator     constraint

               
@Email                 
@Length(min=, max=)                    
@NotEmpty               
@Range(min=, max=)                 
@NotBlank               
@URL(protocol=, host=,    port=,  regexp=, flags=)                 url
@CreditCardNumber            Luhn    ，    ，          Luhn      
@ScriptAssert(lang=, script=, alias=)     Java Scripting API  JSR 223 ("Scripting for the JavaTM Platform")   
@SafeHtml(whitelistType=, additionalTags=)  classpath   jsoup 

hibernate      ，  3    ，   。
     @NotNull  @NotEmpty  @NotBlank 3      ：
@NotNull                value   null
@NotEmpty                0，      ，          null
@NotBlank                 null，     trim()  length   0

/**
     *     hibernate validator         (BindException)
     *
     * @param ex   
     * @return       
     * {
     *     code: 0,
     *     message: "  ",
     *     data: {
     *         name: "      ",
     *         ...
     *     }
     * }
     */
    @ExceptionHandler(MethodArgumentNotValidException.class)
    public Object validatorException(MethodArgumentNotValidException ex) {

        List errors = ex.getBindingResult().getFieldErrors();

        MessageReturn mr = MessageReturn.fail();
        for (FieldError fe : errors) {
            mr.add(fe.getField(), fe.getDefaultMessage());
        }

        return mr;
    }

logback-classic
logback-core
slf4-api
jcl-over-slf4j
jul-to-slf4j
log4j-over-slf4j

#     
#      ，spring boot               ERROR,WARN,INFO;      DEBUG       debug=true;
debug=true
#     
logging.pattern.console=%-4relative [%thread] %-5level %logger{35} - %msg %n
logging.pattern.file=%-4relative [%thread] %-5level %logger{35} - %msg %n
#                ;root    
logging.level.root=DEBUG
logging.level.com.liangyt=DEBUG
#logging.level.org.springframework.web=DEBUG
#       
logging.path=logs
logging.file=log.log

logging.config=logconfig.xml

<dependency>
    <groupId>org.mongodbgroupId>
    <artifactId>mongo-java-driverartifactId>
    <version>3.4.2version>
dependency>

<appender name="MONGODB" class="com.liangyt.config.db.LogMongoDBAppender">
    <DbHost>localhostDbHost>
    <DbPort>27017DbPort>
    <DbName>exappDbName>
    <DbCollectionName>loggingDbCollectionName>
appender>



<logger name="com.liangyt" level="DEBUG">
    <appender-ref ref="MONGODB" />
logger>

protected Logger mongodbLogger = LoggerFactory.getLogger("MONGODB");
mongodbLogger.info("       ");

<dependency>
    <groupId>org.aspectjgroupId>
    <artifactId>aspectjrtartifactId>
    <version>${aspectj.version}version>
dependency>
<dependency>
    <groupId>org.aspectjgroupId>
    <artifactId>aspectjweaverartifactId>
    <version>${aspectj.version}version>
dependency>