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Java poi how to read cell null or empty string mode, in view of this problem, this article introduces the corresponding analysis and solution in detail, hoping to help more partners who want to solve this problem to find a more simple and easy way.

Java poi reads cell null or empty string Cell cell = row.getCell (j, Row.RETURN_BLANK_AS_NULL)

Requirements: the cells filled in by the planner students are sometimes null and sometimes empty string processing.

Getcell can pass in the specified policy and get the result according to the demand.

Java poi reads data with empty excel cells, and a null pointer exception occurs.

Null pointer exception: java.lang.NullPointerException

Phenomenon:

Cause

Some of the cells in the excel table are empty, and the sheet object you get is also empty:

As shown in the figure:

Problem solving

When reading cell data, add the following parameters, and finally solve the problem:

MissingCellPolicy.CREATE_NULL_AS_BLANK

As shown in the figure:

The answer to the question about how java poi reads cell null or empty string is shared here. I hope the above content can be of some help to you. If you still have a lot of doubts to be solved, you can follow the industry information channel for more related knowledge.

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