SpringBoot提交form表单 size大小

报错误信息

The multi-part request contained parameter data (excluding uploaded files) that exceeded the limit for maxPostSize set on the associated connector.

可以看到在SB源码中post链接请求源码 默认参数

form表单pots提交size大小 超出默认限制

解决办法

更改tomcat的post限制大小

硬编码方式

 

import org.springframework.boot.context.embedded.ConfigurableEmbeddedServletContainer;
import org.springframework.boot.context.embedded.EmbeddedServletContainerCustomizer;
import org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

/**
 * 设置post 参数大小
 *
 * @author tizzy
 */
@Configuration
public class HttpMaxPostSizeConfiguration {


    // Set maxPostSize of embedded tomcat server to 10 megabytes (default is 2 MB, not large enough to support file uploads > 1.5 MB)
    @Bean
    EmbeddedServletContainerCustomizer containerCustomizer() throws Exception {
        return (ConfigurableEmbeddedServletContainer container) -> {
            if (container instanceof TomcatEmbeddedServletContainerFactory) {
                TomcatEmbeddedServletContainerFactory tomcat = (TomcatEmbeddedServletContainerFactory) container;
                tomcat.addConnectorCustomizers(
                        (connector) -> {
                            connector.setMaxPostSize(10000000); // 10 MB
                        }
                );
            }
        };
    }
}

或者配置文件方式
tomcat

server.tomcat.max-http-post-size: 10MB

Jetty

server.jetty.max-http-post-size: 10MB

Undertow

server.undertow.max-http-post-size: 10MB

最后配置文件里 请求大小

spring:
  http:
    multipart:
      maxRequestSize: 100Mb
      maxFileSize: 10Mb

最后启动Sb.run