SpringBoot集成SpringMVC的方法示例

<dependency>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-starter-web</artifactId>
  <version>2.3.7.RELEASE</version>
</dependency>

server:
 port: 8080 # web服务端口号
 servlet:
  multipart:
   enabled: true # 启用文件上传
   location: # 上传文件临时保存位置
   max-file-size: 50MB # 单个文件上传最大大小限制
   max-request-size: 100MB # 单次请求主体最大大小限制
 mvc:
  format:
   date: yyyy-MM-dd # 日期格式
   date-time: yyyy-MM-dd HH:mm:ss # 日期时间格式
   time: HH:mm:ss # 时间格式
  servlet:
   path: / # servlet路径
   static-path-pattern: # 匹配静态资源路径
  view:
   prefix: # view前缀
   suffix: # view后缀，如：.jsp

@Configuration
public class WebConfiguration implements WebMvcConfigurer {
}

@Override
public void addInterceptors(InterceptorRegistry registry) {
 registry.addInterceptor(自定义拦载器)
  .addPathPatterns(拦载的路径);
}

@Override
public void addCorsMappings(CorsRegistry registry) {
 registry.addMapping("/**") // 允许跨域访问的路径
  .allowedOrigins("*")// 允许跨域访问的源
  .allowedMethods("POST", "GET", "PUT", "OPTIONS", "DELETE") // 允许请求方法
  .maxAge(86400) // 预检间隔时间
  .allowedHeaders("*") // 允许头部设置
  .allowCredentials(true); // 是否发送cookie
}

@Override
protected void addResourceHandlers(ResourceHandlerRegistry registry) {
 registry.addResourceHandler("/**").addResourceLocations("classpath:/statics/");
 super.addResourceHandlers(registry);
}

@Override
public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
 MappingJackson2HttpMessageConverter jackson2HttpMessageConverter = new MappingJackson2HttpMessageConverter();
 ObjectMapper objectMapper = new ObjectMapper();
 /**
 * 序列换成json时,将所有的long变成string
 * 因为js中得数字类型不能包含所有的java long值
 */
 SimpleModule simpleModule = new SimpleModule();
 simpleModule.addSerializer(Long.class, ToStringSerializer.instance);
 simpleModule.addSerializer(Long.TYPE, ToStringSerializer.instance);
 simpleModule.addSerializer(Date.class, DateSerializer.instance);

 objectMapper.registerModule(simpleModule);

// objectMapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);
 objectMapper.configure(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS, false);
 objectMapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
 objectMapper.configure(DeserializationFeature.READ_UNKNOWN_ENUM_VALUES_AS_NULL, true);
 objectMapper.setTimeZone(TimeZone.getTimeZone("GMT+8"));
 objectMapper.setDateFormat(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"));

 jackson2HttpMessageConverter.setObjectMapper(objectMapper);
 converters.add(0, jackson2HttpMessageConverter);
}

@Override
public void extendMessageConverters(List<HttpMessageConverter<?>> converters) {

}

@Override
public void addFormatters(FormatterRegistry registry) {
 DateTimeFormatterRegistrar registrar = new DateTimeFormatterRegistrar();
 registrar.setTimeFormatter(DateTimeFormatter.ofPattern(DatePattern.NORM_TIME_PATTERN));
 registrar.setDateFormatter(DateTimeFormatter.ofPattern(DatePattern.NORM_DATE_PATTERN));
 registrar.setDateTimeFormatter(DateTimeFormatter.ofPattern(DatePattern.NORM_DATETIME_PATTERN));
 registrar.registerFormatters(registry);
}

@Override
public void addArgumentResolvers(List<HandlerMethodArgumentResolver> resolvers) {
 resolvers.add(new VerifySignatureResolver());
}

@Override
public void configureViewResolvers(ViewResolverRegistry registry) {

 // jsp视图解析器
 InternalResourceViewResolver jspView = new InternalResourceViewResolver();
 jspView.setOrder(1);
 jspView.setPrefix("/WEB-INFO");
 jspView.setSuffix(".jsp");
 registry.viewResolver(jspView);

 // xml
 XmlViewResolver xmlView = new XmlViewResolver();
 xmlView.setOrder(2);
 registry.viewResolver(xmlView);
}

@Override
public void addViewControllers(ViewControllerRegistry registry) {
 registry.addViewController("/hello").setViewName("/hello");
 //可以添加更多
}