In java, the yyyy-MM-dd HH: mm: ss type is converted to the long type, and the yyyy-mm-ddhh type is converted.

In java, the yyyy-MM-dd HH: mm: ss type is converted to the long type, and the yyyy-mm-ddhh type is converted.

Summary of today's pitfalls:
1. The content in html is a reserved word and cannot be used as an id name.
2. When the controller and jsp pages transmit data, you must pay attention to the consistency of variables and variable types.
3. Be sure to make up JavaScript and jquery knowledge. It's terrible to be unliterate...

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