登录
当前位置： 首页 > 知识库问答 >
问题：

所需的MultipartFile参数“file”不存在

汪明德
2023-03-14 
----------------------------------------------------------------------------
<!DOCTYPE html>

<%@ taglib prefix="spring" uri="http://www.springframework.org/tags"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>

<html lang="en">

<body>
    <br>Message: ${message}
    <h2>List Of Objects</h2>

    <br>
    <h2>Upload New File to this Bucket</h2>
    <form action="uploadObject" method="post" enctype="multipart/form-data">
        <table width="60%" border="1" cellspacing="0">
            <tr>
                <td width="35%"><strong>File to upload</strong></td>
                <td width="65%"><input type="file" name="file" /></td>
            </tr>
            <tr>
                <td>&nbsp;</td>
                <td><input type="submit" name="submit" value="Add" /></td>
            </tr>
        </table>
    </form>
</body>
</html>

@RequestMapping(value = "/uploadObject", method = RequestMethod.POST)
    @Override
    public String upload(@RequestParam("file") MultipartFile file,
            @RequestParam("bucketName") String bucketName,
            Map<String, Object> model) {

        LOG.info("Object name parameter is " + file.getOriginalFilename());
        LOG.info("Bucket name parameter is " + bucketName);
....
}

package com.phi.piranha.client.config;

import javax.servlet.MultipartConfigElement;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.context.embedded.MultiPartConfigFactory;
import org.springframework.boot.context.web.SpringBootServletInitializer;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.multipart.commons.CommonsMultipartResolver;

@Configuration
@EnableAutoConfiguration
@ComponentScan("com.phi.piranha")
public class PiranhaStorageServiceClientApplication extends
        SpringBootServletInitializer {

    @Override
    protected SpringApplicationBuilder configure(
            final SpringApplicationBuilder application) {
        return application
                .sources(PiranhaStorageServiceClientApplication.class);
    }

    @SuppressWarnings("PMD.SignatureDeclareThrowsException")
    public static void main(final String[] args) throws Exception {
        SpringApplication.run(PiranhaStorageServiceClientApplication.class,
                args);
    }

    @Bean
    MultipartConfigElement multipartConfigElement() {
        MultiPartConfigFactory factory = new MultiPartConfigFactory();
        factory.setMaxFileSize("1024KB");
        factory.setMaxRequestSize("1024KB");
        return factory.createMultipartConfig();
    }

    @Bean
    CommonsMultipartResolver multipartResolver(){
        return new CommonsMultipartResolver();
    }
}

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::            (v1.0.0.RC4)

2014-03-28 14:41:01.216  INFO 2852 --- [           main] c.PiranhaStorageServiceClientApplication : Starting PiranhaStorageServiceClientApplication on USDSFOSFC1NBOPY with PID 2852 (C:\a\workspace\sandbox\s3-poc-client\target\classes started by 310152252)
2014-03-28 14:41:01.220 DEBUG 2852 --- [           main] o.s.boot.SpringApplication               : Loading source class com.phi.piranha.client.config.PiranhaStorageServiceClientApplication
2014-03-28 14:41:01.270  INFO 2852 --- [           main] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@6f434304: startup date [Fri Mar 28 14:41:01 PDT 2014]; root of context hierarchy
2014-03-28 14:41:01.273 DEBUG 2852 --- [           main] ationConfigEmbeddedWebApplicationContext : Bean factory for org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@6f434304: org.springframework.beans.factory.support.DefaultListableBeanFactory@62b08658: defining beans [org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalRequiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,piranhaStorageServiceClientApplication]; root of factory hierarchy
2014-03-28 14:41:01.897  INFO 2852 --- [           main] o.s.b.f.s.DefaultListableBeanFactory     : Overriding bean definition for bean 'multipartResolver': replacing [Root bean: class [null]; scope=; abstract=false; lazyInit=false; autowireMode=3; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=piranhaStorageServiceClientApplication; factoryMethodName=multipartResolver; initMethodName=null; destroyMethodName=(inferred); defined in class com.phi.piranha.client.config.PiranhaStorageServiceClientApplication] with [Root bean: class [null]; scope=; abstract=false; lazyInit=false; autowireMode=3; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=org.springframework.boot.autoconfigure.web.MultipartAutoConfiguration; factoryMethodName=multipartResolver; initMethodName=null; destroyMethodName=(inferred); defined in class path resource [org/springframework/boot/autoconfigure/web/MultipartAutoConfiguration.class]]
2014-03-28 14:41:02.188 DEBUG 2852 --- [           main] ationConfigEmbeddedWebApplicationContext : Using MessageSource [org.springframework.context.support.ResourceBundleMessageSource: basenames=[messages]]
2014-03-28 14:41:02.189 DEBUG 2852 --- [           main] ationConfigEmbeddedWebApplicationContext : Using ApplicationEventMulticaster [org.springframework.context.event.SimpleApplicationEventMulticaster@58a1c2bf]
2014-03-28 14:41:02.495 DEBUG 2852 --- [           main] .t.TomcatEmbeddedServletContainerFactory : Code archive: C:\Users\310152252\.m2\repository\org\springframework\boot\spring-boot\1.0.0.RC4\spring-boot-1.0.0.RC4.jar
2014-03-28 14:41:02.495 DEBUG 2852 --- [           main] .t.TomcatEmbeddedServletContainerFactory : Code archive: C:\Users\310152252\.m2\repository\org\springframework\boot\spring-boot\1.0.0.RC4\spring-boot-1.0.0.RC4.jar
2014-03-28 14:41:02.496 DEBUG 2852 --- [           main] .t.TomcatEmbeddedServletContainerFactory : Document root: C:\a\workspace\sandbox\s3-poc-client\src\main\webapp
2014-03-28 14:41:02.546  INFO 2852 --- [           main] .t.TomcatEmbeddedServletContainerFactory : Server initialized with port: 9090
2014-03-28 14:41:02.884  INFO 2852 --- [           main] o.apache.catalina.core.StandardService   : Starting service Tomcat
2014-03-28 14:41:02.885  INFO 2852 --- [           main] org.apache.catalina.core.StandardEngine  : Starting Servlet Engine: Apache Tomcat/7.0.52
2014-03-28 14:41:03.077  INFO 2852 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
2014-03-28 14:41:03.077  INFO 2852 --- [ost-startStop-1] o.s.web.context.ContextLoader            : Root WebApplicationContext: initialization completed in 1811 ms
2014-03-28 14:41:03.810  INFO 2852 --- [ost-startStop-1] o.s.b.c.e.ServletRegistrationBean        : Mapping servlet: 'dispatcherServlet' to [/]
2014-03-28 14:41:03.813  INFO 2852 --- [ost-startStop-1] o.s.b.c.embedded.FilterRegistrationBean  : Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
2014-03-28 14:41:04.356  INFO 2852 --- [           main] o.s.w.s.handler.SimpleUrlHandlerMapping  : Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2014-03-28 14:41:04.483  INFO 2852 --- [           main] o.s.w.s.handler.SimpleUrlHandlerMapping  : Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2014-03-28 14:41:04.483  INFO 2852 --- [           main] o.s.w.s.handler.SimpleUrlHandlerMapping  : Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2014-03-28 14:41:04.744  INFO 2852 --- [           main] o.s.j.e.a.AnnotationMBeanExporter        : Registering beans for JMX exposure on startup
2014-03-28 14:41:04.763 DEBUG 2852 --- [           main] ationConfigEmbeddedWebApplicationContext : Unable to locate LifecycleProcessor with name 'lifecycleProcessor': using default [org.springframework.context.support.DefaultLifecycleProcessor@11a91abc]
2014-03-28 14:41:04.765 DEBUG 2852 --- [           main] utoConfigurationReportLoggingInitializer : 


=========================
AUTO-CONFIGURATION REPORT
=========================


Positive matches:
-----------------

   MessageSourceAutoConfiguration
      - @ConditionalOnMissingBean (types: org.springframework.context.MessageSource; SearchStrategy: all) found no beans (OnBeanCondition)

   PropertyPlaceholderAutoConfiguration#propertySourcesPlaceholderConfigurer
      - @ConditionalOnMissingBean (types: org.springframework.context.support.PropertySourcesPlaceholderConfigurer; SearchStrategy: current) found no beans (OnBeanCondition)

   JmxAutoConfiguration
      - @ConditionalOnClass classes found: org.springframework.jmx.export.MBeanExporter (OnClassCondition)
      - SpEL expression on org.springframework.boot.autoconfigure.jmx.JmxAutoConfiguration: ${spring.jmx.enabled:true} (OnExpressionCondition)
      - @ConditionalOnMissingBean (types: org.springframework.jmx.export.MBeanExporter; SearchStrategy: all) found no beans (OnBeanCondition)

   DispatcherServletAutoConfiguration
      - found web application StandardServletEnvironment (OnWebApplicationCondition)
      - @ConditionalOnClass classes found: org.springframework.web.servlet.DispatcherServlet (OnClassCondition)

   DispatcherServletAutoConfiguration.DispatcherServletConfiguration
      - no DispatcherServlet found (DispatcherServletAutoConfiguration.DefaultDispatcherServletCondition)
      - @ConditionalOnClass classes found: javax.servlet.ServletRegistration (OnClassCondition)

   EmbeddedServletContainerAutoConfiguration
      - found web application StandardServletEnvironment (OnWebApplicationCondition)

   EmbeddedServletContainerAutoConfiguration.EmbeddedTomcat
      - @ConditionalOnClass classes found: javax.servlet.Servlet,org.apache.catalina.startup.Tomcat (OnClassCondition)
      - @ConditionalOnMissingBean (types: org.springframework.boot.context.embedded.EmbeddedServletContainerFactory; SearchStrategy: current) found no beans (OnBeanCondition)

   HttpMessageConvertersAutoConfiguration
      - @ConditionalOnClass classes found: org.springframework.http.converter.HttpMessageConverter (OnClassCondition)

   HttpMessageConvertersAutoConfiguration#messageConverters
      - @ConditionalOnMissingBean (types: org.springframework.boot.autoconfigure.web.HttpMessageConverters; SearchStrategy: all) found no beans (OnBeanCondition)

   HttpMessageConvertersAutoConfiguration.ObjectMappers
      - @ConditionalOnClass classes found: com.fasterxml.jackson.databind.ObjectMapper (OnClassCondition)

   HttpMessageConvertersAutoConfiguration.ObjectMappers#jacksonObjectMapper
      - @ConditionalOnMissingBean (types: com.fasterxml.jackson.databind.ObjectMapper; SearchStrategy: all) found no beans (OnBeanCondition)

   HttpMessageConvertersAutoConfiguration.ObjectMappers#mappingJackson2HttpMessageConverter
      - @ConditionalOnMissingBean (types: org.springframework.http.converter.json.MappingJackson2HttpMessageConverter; SearchStrategy: all) found no beans (OnBeanCondition)

   MultipartAutoConfiguration
      - @ConditionalOnClass classes found: javax.servlet.Servlet,org.springframework.web.multipart.support.StandardServletMultipartResolver (OnClassCondition)
      - @ConditionalOnBean (types: javax.servlet.MultipartConfigElement; SearchStrategy: all) found the following [multipartConfigElement] (OnBeanCondition)

   ServerPropertiesAutoConfiguration
      - found web application StandardServletEnvironment (OnWebApplicationCondition)

   ServerPropertiesAutoConfiguration#serverProperties
      - @ConditionalOnMissingBean (types: org.springframework.boot.autoconfigure.web.ServerProperties; SearchStrategy: current) found no beans (OnBeanCondition)

   WebMvcAutoConfiguration
      - found web application StandardServletEnvironment (OnWebApplicationCondition)
      - @ConditionalOnClass classes found: javax.servlet.Servlet,org.springframework.web.servlet.DispatcherServlet,org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter (OnClassCondition)
      - @ConditionalOnMissingBean (types: org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport; SearchStrategy: all) found no beans (OnBeanCondition)

   WebMvcAutoConfiguration#hiddenHttpMethodFilter
      - @ConditionalOnMissingBean (types: org.springframework.web.filter.HiddenHttpMethodFilter; SearchStrategy: all) found no beans (OnBeanCondition)

   WebMvcAutoConfiguration.WebMvcAutoConfigurationAdapter#defaultViewResolver
      - @ConditionalOnMissingBean (types: org.springframework.web.servlet.view.InternalResourceViewResolver; SearchStrategy: all) found no beans (OnBeanCondition)

   WebMvcAutoConfiguration.WebMvcAutoConfigurationAdapter#requestContextListener
      - @ConditionalOnMissingBean (types: org.springframework.web.context.request.RequestContextListener; SearchStrategy: all) found no beans (OnBeanCondition)


Negative matches:
-----------------

   RabbitAutoConfiguration
      - required @ConditionalOnClass classes not found: org.springframework.amqp.rabbit.core.RabbitTemplate,com.rabbitmq.client.Channel (OnClassCondition)

   AopAutoConfiguration
      - required @ConditionalOnClass classes not found: org.aspectj.lang.annotation.Aspect,org.aspectj.lang.reflect.Advice (OnClassCondition)

   BatchAutoConfiguration
      - required @ConditionalOnClass classes not found: org.springframework.batch.core.launch.JobLauncher,org.springframework.jdbc.core.JdbcOperations (OnClassCondition)

   JpaRepositoriesAutoConfiguration
      - required @ConditionalOnClass classes not found: org.springframework.data.jpa.repository.JpaRepository (OnClassCondition)

   MongoRepositoriesAutoConfiguration
      - required @ConditionalOnClass classes not found: com.mongodb.Mongo,org.springframework.data.mongodb.repository.MongoRepository (OnClassCondition)

   MongoTemplateAutoConfiguration
      - required @ConditionalOnClass classes not found: com.mongodb.Mongo,org.springframework.data.mongodb.core.MongoTemplate (OnClassCondition)

   DataSourceAutoConfiguration
      - required @ConditionalOnClass classes not found: org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseType (OnClassCondition)

   DataSourceTransactionManagerAutoConfiguration
      - required @ConditionalOnClass classes not found: org.springframework.jdbc.core.JdbcTemplate,org.springframework.transaction.PlatformTransactionManager (OnClassCondition)

   JmsTemplateAutoConfiguration
      - required @ConditionalOnClass classes not found: org.springframework.jms.core.JmsTemplate,javax.jms.ConnectionFactory (OnClassCondition)

   DeviceResolverAutoConfiguration
      - required @ConditionalOnClass classes not found: org.springframework.mobile.device.DeviceResolverHandlerInterceptor,org.springframework.mobile.device.DeviceHandlerMethodArgumentResolver (OnClassCondition)

   MongoAutoConfiguration
      - required @ConditionalOnClass classes not found: com.mongodb.Mongo (OnClassCondition)

   HibernateJpaAutoConfiguration
      - did not find HibernateEntityManager class (HibernateJpaAutoConfiguration.HibernateEntityManagerCondition)

   ReactorAutoConfiguration
      - required @ConditionalOnClass classes not found: reactor.spring.context.config.EnableReactor (OnClassCondition)

   RedisAutoConfiguration
      - required @ConditionalOnClass classes not found: org.springframework.data.redis.connection.lettuce.LettuceConnection,org.springframework.data.redis.core.RedisOperations,com.lambdaworks.redis.RedisClient (OnClassCondition)

   SecurityAutoConfiguration
      - required @ConditionalOnClass classes not found: org.springframework.security.authentication.AuthenticationManager (OnClassCondition)

   ThymeleafAutoConfiguration
      - required @ConditionalOnClass classes not found: org.thymeleaf.spring4.SpringTemplateEngine (OnClassCondition)

   EmbeddedServletContainerAutoConfiguration.EmbeddedJetty
      - required @ConditionalOnClass classes not found: org.eclipse.jetty.server.Server,org.eclipse.jetty.util.Loader (OnClassCondition)

   WebMvcAutoConfiguration.WebMvcAutoConfigurationAdapter#beanNameViewResolver
      - @ConditionalOnBean (types: org.springframework.web.servlet.View; SearchStrategy: all) found no beans (OnBeanCondition)

   WebMvcAutoConfiguration.WebMvcAutoConfigurationAdapter#viewResolver
      - @ConditionalOnBean (types: org.springframework.web.servlet.View; SearchStrategy: all) found no beans (OnBeanCondition)

   WebSocketAutoConfiguration
      - required @ConditionalOnClass classes not found: org.springframework.web.socket.WebSocketHandler (OnClassCondition)



2014-03-28 14:41:04.821  INFO 2852 --- [           main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat started on port: 9090
2014-03-28 14:41:04.829  INFO 2852 --- [           main] c.PiranhaStorageServiceClientApplication : Started PiranhaStorageServiceClientApplication in 4.231 seconds (JVM running for 5.249)

共有1个答案

龚国源
2023-03-14

我发现spring Boot中的MultipartAutoConfiguration存在一个问题。我禁用了它，并在web配置中添加了@bean，它工作了。基于这个异常，我看到Jackson映射器试图解析多部分内容，而不是多部分解析器本身。

这是片段。

@EnableAutoConfiguration(exclude={MultipartAutoConfiguration.class}

在webconfig类中添加以下内容

@Configuration
public class WebConfig extends WebMvcConfigurerAdapter {

@Bean(name = "multipartResolver")
public CommonsMultipartResolver multipartResolver() {
    logger.info("Loading the multipart resolver");
    CommonsMultipartResolver multipartResolver 
            = new CommonsMultipartResolver();
    return multipartResolver;
}
 类似资料：
  • Spring MVC：HTTP状态400-所需的MultipartFile参数“file”不存在

    这是我的控制器： 我的mvc-dispatcher-servlet.xml pom.xml：

  • jQuery Ajax文件上载：所需的MultipartFile参数“file”不存在

    背景 我正在Java8上构建一个Spring MVC web应用程序，并在Tomcat8上运行它。除了这些信息之外，Spring版本是和我给您介绍了环境背景，因为一些问题解决者提到该版本与此错误有关。 下面是我的表格 奇怪的事 是通过上传文件没有问题。它就像一个魅力！！对于我没有什么可抱怨的！！ 我已经用这个关键字搜索了谷歌，并尽可能多地搜索，就像我在发布关于的问题之前经常做的那样 我真的不明白为

  • 获取HTTP状态400-Spring中不存在必需的MultipartFile参数'file'

    问题内容： 我正在尝试使用上传文件。下面是我的代码如何工作，但是如果我尝试使用它，则会得到以下信息： HTTP状态400-所需的MultipartFile参数’file’不存在 我不明白错误是什么。 我正在使用高级Rest Client进行测试，并且正在将文件作为附件上传。 我的Java代码： 问题答案： 春天需要 bean处理文件上载。 您应该在文件中注册该bean 。 Content-Type

  • 尝试上载文件时，必需的MultipartFile参数“file”不存在错误

    简单示例：jsp中的表单 我的控制器的方法 我的上下文xml文件 描述由于被认为是客户端错误（例如，错误的请求语法、无效的请求消息帧或欺骗性的请求路由），服务器无法或不会处理请求。 Apache Tomcat/8.5.12

  • 所需的字符串参数不存在

    我想从我的Android应用程序向Spring Boot发送post请求。我使用okhttp以JSON格式发送HTTP post请求。代码如下： 每次我使用Android请求发送post请求时，我都会收到400个错误的请求参数“name”不存在，“path”：“/newcustomer”。但当我使用postman时，它可以工作。

  • Spring File Upload-'所需的请求部分不存在'

    我试图向我的控制器发送POST请求，但除非我决定使用JSON，否则无法以任何类型传递任何参数。我的目标是将一个字符串和一个文件传递给我的控制器，但我不断得到错误。 我不能在这里有文件。同样，如果我尝试： 同样的事情，我在这里找不到名字。 我通过邮递员发送请求，如下所示： 唯一的标题标记用于授权。我没有任何内容类型标题，我试图添加，但没有帮助。 传递字符串参数的唯一方法是向URL添加。所以下面的有效

相关问答

Spring File Upload-'所需的请求部分不存在'改装-多部分请求：所需的多部分文件参数“file”不存在所需的字符串参数“电子邮件”不存在Spring MVC中所需的字符串参数不存在错误不存在必需的字符串参数“x”

相关文章

Lombok @Builder的必需参数防止RequireJS缓存所需的脚本Discord.py缺少必需的参数具有一个请求对象作为方法签名参数，该参数构成所有必需的参数为什么Hibernate不需要参数构造函数？

相关阅读

Java File类C++函数的默认参数HTTP-参数C语言函数的形参和实参C#参数数组

相关工具

File Browsermicro-filefile-arrangerFile-ExplorerFile Style

相关文档

React Bits 你需要了解的知识点Antlr 4 参考W3C 中文排版需求Ruby 参考手册JavaScript 参考教程
快捷导航： 新手教程 算法原理 架构设计 Java进阶 数据库进阶 大厂专栏 面试经验 编程笔记 编程问答 所有专题 文档资料 工具软件 电子书籍 小牛导航
在线工具： 房贷计算器 个税计算器 Linux命令查询 Json格式化 正则表达式 颜色转换 AES加解密 SHA1加密 MD5加密 毒鸡汤 字数统计 随机密码生成 进制转换 Base64编解码 励志句子
Copyright © 2019-2024 小牛知识库@xnip.cn. All Rights Reserved.