The server cannot or will not process the request due to something that is perceived to be a client

Type Status Report

Description The server cannot or will not process the request due to something that is perceived to be a client error (e.g., malformed request syntax, invalid request message framing, or deceptive request routing).

问题描述：访问400

原因：参数不能被识别或者参数有错误，检查form表单，还有就是表单中含有日期类型的数据也会有问题

解决：1.使用Spring的@DateTimeFormat注解

使用方法: 在对应的属性上或者其set方法上加上@DateTimeFormat注解, 这个注解有一个pattern属性, 可以指定要日期的格式.

就像这样:

@DateTimeFormat(pattern = "yyyy-MM-dd")
private Date birth;

还需要在配置文件中添加"mvc:annotation-driven"这个标签, 否则不生效.

这种方法最简单,只需添加两处配置即可. 但只是局部生效, 若需要转换的属性比较多, 就造成了注解编写的冗余.
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版权声明：本文为CSDN博主「forJL」的原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接及本声明。
原文链接：https://blog.csdn.net/wn084/article/details/80171687

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