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[Source] Java dynamically spliced SQL statements prevent database injection

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Posted on 2/7/2022 3:52:57 PM | | | |
The danger of SQL injection: Hackers exploit this vulnerability to inject SQL script statements into the system to delete databases or steal data.

Demand:

1. Splicing SQL statements from the database is executed, if it is only filled with parameter values, the parameter values can be passed directly through Parameters, which can completely prevent SQL injection, and filtering the strings submitted by users through regular expressions can also reduce the risk of injection, however, for keywords of mutation, transformation, and new syntax, it cannot effectively prevent the risk of injection.

2. Dynamic icon report, the user enters SQL statements through the interface, and then executes from the database. This is because this type of query operation is only a query operation, and dangerous keywords such as update and delete should be filtered.

review

c# and asp.net prevent SQL injection filtering methods
https://www.itsvse.com/thread-1843-1-1.html

C#. .NET to prevent SQL injection attacks
https://www.itsvse.com/thread-1842-1-1.html

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