Index 0 out-of-bounds for length 0

tags: eclipse

Problem: java.lang.IndexOutOfBoundsException: Index 0 out-of-bounds for length 0

The problem situation, as shown in the figure:

Details of the error content, as shown in the figure:

Solution:

1. The DAO layer should

Change to the following

2. Then put the Servlet layer

Change to the following

 

After the modification, the problem is solved, as shown in the figure:

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