关于java：Spring引导：配置CommonMultipartResolver的maxUploadSize时，ClassNotFoundException


Spring Boot: ClassNotFoundException when configuring maxUploadSize of CommonMultipartResolver

我正在将Spring Boot用于我的Web应用程序，并且试图配置Spring的CommonMultipartResolver的maxUploadSize。当前，它似乎受Spring(？)默认大小1 MB的限制。上传是通过REST接口完成的，方法签名如下所示：

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@RequestMapping(value ="/upload", method = RequestMethod.POST)
public void uploadFile(@RequestParam("file") MultipartFile file, HttpServletRequest request)

每当我尝试上传更大的文件时，都会引发FileSizeLimitExceededException：

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org.apache.tomcat.util.http.fileupload.FileUploadBase$FileSizeLimitExceededException: The field file exceeds its maximum permitted size of 1048576 bytes.
    at org.apache.tomcat.util.http.fileupload.FileUploadBase$FileItemIteratorImpl$FileItemStreamImpl$1.raiseError(FileUploadBase.java:637)
    at org.apache.tomcat.util.http.fileupload.util.LimitedInputStream.checkLimit(LimitedInputStream.java:76)
    at org.apache.tomcat.util.http.fileupload.util.LimitedInputStream.read(LimitedInputStream.java:135)
    at java.io.FilterInputStream.read(FilterInputStream.java:107)
    at org.apache.tomcat.util.http.fileupload.util.Streams.copy(Streams.java:99)
    at org.apache.tomcat.util.http.fileupload.util.Streams.copy(Streams.java:68)
    at org.apache.tomcat.util.http.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:296)
    at org.apache.catalina.connector.Request.parseParts(Request.java:2737)
    at org.apache.catalina.connector.Request.parseParameters(Request.java:3096)
    at org.apache.catalina.connector.Request.getParameter(Request.java:1145)
    at org.apache.catalina.connector.RequestFacade.getParameter(RequestFacade.java:382)
    at javax.servlet.ServletRequestWrapper.getParameter(ServletRequestWrapper.java:140)
    at javax.servlet.ServletRequestWrapper.getParameter(ServletRequestWrapper.java:140)
    at javax.servlet.ServletRequestWrapper.getParameter(ServletRequestWrapper.java:140)
    at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:70)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
    at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:118)
    at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:84)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
    at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
    at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:103)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
    at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
    at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:154)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
    at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:45)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
    at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:110)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
    at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:57)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
    at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
    at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:50)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
    at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:192)
    at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:160)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    at org.springframework.boot.context.web.ErrorPageFilter.doFilter(ErrorPageFilter.java:109)
    at org.springframework.boot.context.web.ErrorPageFilter.access$000(ErrorPageFilter.java:59)
    at org.springframework.boot.context.web.ErrorPageFilter$1.doFilterInternal(ErrorPageFilter.java:88)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
    at org.springframework.boot.context.web.ErrorPageFilter.doFilter(ErrorPageFilter.java:101)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1040)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    at java.lang.Thread.run(Thread.java:744)

我尝试过但未成功的事情：

设置Tomcat属性

由于我的Web应用程序正在Tomcat上运行(不是嵌入式程序，而是单独的外部程序)，因此我尝试通过更改Tomcat配置来配置大小，如此处所述。不幸的是，这没有效果，因为最大上传大小仍保持为1 MB。

通过注释配置Spring的CommonMultipartResolver

由于1MB的值似乎来自CommonMultipartResolver(我可以看到调试时设置了1MB的值)，因此我尝试通过如下注释来配置Spring：

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@Configuration
public class CoreConfig {

    @Bean
    public CommonsMultipartResolver commonsMultipartResolver() {
    CommonsMultipartResolver multipartResolver = new CommonsMultipartResolver();
    multipartResolver.setMaxUploadSize(50 * 1024 * 1024);
    return multipartResolver;
    }

}

但是，当我启动Tomcat时，会引发以下异常：

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Caused by: java.lang.NoClassDefFoundError: org/apache/commons/fileupload/FileItemFactory
    at myapp.server.CoreConfig.commonsMulipartResolver(CoreConfig.java:40)
    at myapp.server.CoreConfig$$EnhancerBySpringCGLIB$$8b64a88.CGLIB$commonsMulipartResolver$3(<generated>)
    at myapp.server.CoreConfig$$EnhancerBySpringCGLIB$$8b64a88$$FastClassBySpringCGLIB$$ac8c6ee5.invoke(<generated>)
    at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228)
    at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:312)
    at myapp.server.CoreConfig$$EnhancerBySpringCGLIB$$8b64a88.commonsMulipartResolver(<generated>)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:166)
    ... 27 common frames omitted
Caused by: java.lang.ClassNotFoundException: org.apache.commons.fileupload.FileItemFactory
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1720)
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1571)

通过XML进行配置

我没有通过注释驱动的配置，而是通过XML尝试了类似于此发布的配置，但是我得到了与上述相同的ClassNotFoundException。

附加信息

Spring Boot Starter 1.1.9

的Tomcat 7.0.54

服务器的Pom.xml

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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>mygroup</groupId>
    myapp.server</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>war</packaging>

    <parent>
        <groupId>org.springframework.boot</groupId>
        spring-boot-starter-parent</artifactId>
        <version>1.1.9.RELEASE</version>
    </parent>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>com.google.guava</groupId>
            guava</artifactId>
            <version>17.0</version>
        </dependency>
        <dependency>
            <groupId>org.ini4j</groupId>
            ini4j</artifactId>
            <version>RELEASE</version>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            junit</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            spring-test</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            spring-boot-starter-security</artifactId>
        </dependency>
        <dependency>
            <groupId>joda-time</groupId>
            joda-time</artifactId>
        </dependency>
    </dependencies>

    <properties>
        <start-class>myapp.server.Application</start-class>
    </properties>

    <build>
        <plugins>
            <plugin>
                maven-compiler-plugin</artifactId>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                maven-war-plugin</artifactId>
            </plugin>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
        <finalName>${artifactId}</finalName>
    </build>

    <repositories>
        <repository>
            <id>spring-releases</id>
            <url>http://repo.spring.io/libs-release</url>
        </repository>
    </repositories>
    <pluginRepositories>
        <pluginRepository>
            <id>spring-releases</id>
            <url>http://repo.spring.io/libs-release</url>
        </pluginRepository>
    </pluginRepositories>
</project>
相关讨论

您正在使其变得复杂。

只需将spring.http.multipart.maxFileSize添加到您的application.properties文件中就可以了。 无需使用xml或显式定义MultipartResolver。

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spring.http.multipart.maxFileSize=10MB

《 Spring Boot参考指南》中有关文件上传的部分对此进行了说明。

对于所有属性，请检查MultipartProperties类。 支持的其他属性是spring.http.multipart.location，spring.http.multipart.maxRequestSize和spring.http.multipart.fileSizeThreshold。

ClassNotFoundException是由于Spring Boot使用默认的Servlet 3.0支持文件上传而不是commons-fileupload。 因此，如果要使用它，则必须为其显式添加依赖项。 当然，在这种情况下，spring.http.multipart.*属性不再起作用。

相关讨论

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@Bean
MultipartConfigElement multipartConfigElement() {
    MultipartConfigFactory factory = new MultipartConfigFactory();
    factory.setMaxFileSize("5120MB");
    factory.setMaxRequestSize("5120MB");
    return factory.createMultipartConfig();
}

尝试将其添加到定义bean的类中。

相关讨论

对于spring-boot 1.5.3，您应该在application.yml中使用以下代码

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spring:
 http:
  multipart:
   max-file-size: 10MB
   max-request-size: 10MB

对于Spring Boot 2.0+，请使用spring.servlet而不是spring.http

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spring.servlet.multipart.max-file-size=30MB
spring.servlet.multipart.max-request-size=30MB