A place to hold mainly reading notes, and some technical stuff occasionally. 这里主要是一些读书笔记、感悟;还有部分技术相关的内容。
目录[-]
前端页面表单输入数据较多,包含多个文本、多张图片,在数据未压缩的情况下,最终上传失败。
后端报错:
java.lang.IllegalStateException: The multi-part request contained parameter data (excluding uploaded files) that exceeded the limit for maxPostSize set on the associated connector
即:请求数据量过大,超出了最大阈值。
修改Spring Boot
内置Tomcat的maxPostsize
值,在application.yml
配置文件中添加以下内容:
server:
tomcat:
max-http-post-size: -1
Note: 以下配置并不能解决Tomcat请求数据量的限制问题
spring:
servlet:
multipart:
max-file-size: 30Mb
max-request-size: 100Mb
解决了应用服务器请求数据量过大问题后,在下一步写入DB时又遇到了类似问题,超出了数据库中最大允许数据包默认配置值。
Cause: com.mysql.jdbc.PacketTooBigException: Packet for query is too large (16800061 > 16777216). You can change this value on the server by setting the max_allowed_packet’ variable.
修改DB的max_allowed_packet
值:
USE demo;
set global max_allowed_packet = 3*1024*1024*10; # 改为30M
show VARIABLES like '%max_allowed_packet%'; # 重启DB连接生效
Note:MySQL
中max_allowed_packet
的 默认配置:16777216 = 16 * 1024 * 1024
,即16M
If you have any questions or any bugs are found, please feel free to contact me.
Your comments and suggestions are welcome!