代码的搬运工的博客

1.初始化配置 web.xml<filter> <filter-name>EncodeFilter</filter-name> <filter-class>com.java.login.filter.EncodeFilter</filter-class> </filter> <filter-mapping> <filter-name>EncodeF

NullPointerException空指针异常ArithmeticExecption算术异常类ClassCastException类型强制转换异常NegativeArrayException数组负下标异常ArrayIndexOutOfBoundsException数组下标越界异常FileNotFoundException文件未找到异常NumberFormatException字符串转换为数字异常SQLException操作数据库异常...

@RequestMapping(value={"/uploadFile"},method = {RequestMethod.POST}) public RespEntity uploadFile(String ticket_id, MultipartFile file) throws Exception { String uuid = UUID.randomUUID().toString().replace("-", ""); String originalFilename = fi.

方法一、采用添加拦截器的方法@Configurationpublic class WebConfig extends WebMvcConfigurerAdapter { @Autowired private EnvConfig envConfig; @Override public void addInterceptors(InterceptorRegistry registry) { registry.addInterceptor(new Handler

Spring 注解大全与详解注解解释@Controller组合注解（组合了@Component注解），应用在MVC层（控制层）,DispatcherServlet会自动扫描注解了此注解的类，然后将web请求映射到注解了@RequestMapping的方法上。@Service组合注解（组合了@Component注解），应用在service层（业务逻辑层@Reponsitory组合注解（组合了@Component注解），应用在dao层（数据访问层）@Componen