解决org.springframework.web.multipart.MaxUploadSizeExceededException: Maximum upload size exceeded
异常信息:
org.springframework.web.multipart.MaxUploadSizeExceededException: Maximum upload size exceeded; nested exception is java.lang.IllegalStateException: org.apache.tomcat.util.http.fileupload.FileUploadBase$SizeLimitExceededException: the request was rejected because its size (2325669) exceeds the configured maximum (2097152)
原因:上传文件的请求有个默认配置最大值是2M 超出了最大值
通过yml配置可以调整,spring版本配置:
Spring Boot 1.3.x and earlier
multipart.maxFileSize
multipart.maxRequestSize
Spring Boot 1.4.x and 1.5.x
spring.http.multipart.maxFileSize
spring.http.multipart.maxRequestSize
Spring Boot 2.x
spring.servlet.multipart.maxFileSize
spring.servlet.multipart.maxRequestSize
以2.0为例:
spring.servlet.multipart.maxFileSize=30MB
spring.servlet.multipart.maxRequestSize=30M
# 不做限制
spring.servlet.multipart.maxFileSize=-1
spring.servlet.multipart.maxRequestSize=-1
方法二,重写config配置类
import javax.servlet.MultipartConfigElement;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.web.servlet.MultipartConfigFactory;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.util.unit.DataSize;
@Configuration
public class TomcatConfig {
@Value("${spring.http.server.maxFileSize}")
private Long maxFileSize;
@Value("${spring.http.server.maxRequestSize}")
private Long maxRequestSize;
@Bean
public MultipartConfigElement multipartConfigElement() {
MultipartConfigFactory factory = new MultipartConfigFactory();
// 单个数据大小
// factory.setMaxFileSize(MaxFileSize); // KB,MB
factory.setMaxFileSize(DataSize.ofMegabytes(maxFileSize));
/// 总上传数据大小
factory.setMaxRequestSize(DataSize.ofMegabytes(maxRequestSize));
// factory.setMaxRequestSize(MaxRequestSize);
return factory.createMultipartConfig();
}
}
然后在application.properties文件中配置
spring.http.server.maxFileSize和spring.http.server.maxRequestSize的值,效果是一样的