Java program implements the method of exporting excel (supports ie low version)

Today, I want to sort out an export problem I encountered some time ago.

Because of the requirements of the project, some export functions should be done. At the beginning, I used the company's export, but it's strange that some modules will report 500 errors when exporting. I found that they returned to normal after deleting some fields. At that time, because the project was tight, I temporarily deleted some fields, but it's not a long-term plan. Later, I modified and reorganized them on the original basis. At present, the operation is fairly stable, Let's share it with you.

Export requires three parts: JS, public method and background method.

JS code

Public class

Background code

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