Abstract: To enhance students’ ability to perform database operations on complex problems using advanced JDBC knowledge, lay a foundation for their subsequent understanding and application of persistence framework knowledge, and cultivate their preliminary software literacy, this paper designs a comprehensive teaching case consisting of four tasks by integrating advanced JDBC knowledge with object-oriented design principles, design patterns, reflection, generics, and annotations. For each task, based on the PBL teaching method, the approach involves posing problems, analyzing problems, solving problems, and understanding problems, gradually improving students’ ability to comprehensively apply the knowledge they have learned to solve problems. Practical results show that this case improves students’ learning interest and achieves satisfactory teaching outcomes.