import javax.servlet.Filter;

 import org.springframework.boot.SpringApplication;

 import org.springframework.boot.autoconfigure.EnableAutoConfiguration;

 import org.springframework.boot.autoconfigure.SpringBootApplication;

 import org.springframework.boot.autoconfigure.web.MultipartAutoConfiguration;

 import org.springframework.boot.builder.SpringApplicationBuilder;

 import org.springframework.boot.context.web.SpringBootServletInitializer;

 import org.springframework.context.annotation.Bean;

 import org.springframework.transaction.annotation.EnableTransactionManagement;

 import org.springframework.web.filter.CharacterEncodingFilter;

 import org.springframework.web.filter.HttpPutFormContentFilter;

 import org.springframework.web.multipart.commons.CommonsMultipartResolver;

 //exclude表示自动配置时不包括Multipart配置

 @EnableAutoConfiguration(exclude = {MultipartAutoConfiguration.class})

 @SpringBootApplication

 @EnableTransactionManagement

 public class Application extends SpringBootServletInitializer {

     @Override

     protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {

         return application.sources(Application.class);

     }

     @Bean

     public Filter initializeHttpPutHandler() {

         return new HttpPutFormContentFilter();

     }

     @Bean

     public CharacterEncodingFilter initializeCharacterEncodingFilter() {

         CharacterEncodingFilter filter = new CharacterEncodingFilter();

         filter.setEncoding("UTF-8");

         filter.setForceEncoding(true);

         return filter;

     }

     @Bean(name = "multipartResolver")

     public CommonsMultipartResolver multipartResolver() {

         CommonsMultipartResolver resolver = new CommonsMultipartResolver();

         resolver.setDefaultEncoding("UTF-8");

         resolver.setResolveLazily(true);// resolveLazily属性启用是为了推迟文件解析

         resolver.setMaxInMemorySize(40960);

         resolver.setMaxUploadSize(50 * 1024 * 1024);// 上传文件大小 50M 50*1024*1024

         return resolver;

     }

     public static void main(String[] args) throws Exception {

         SpringApplication.run(Application.class, args);

     }

 }