Java检索查询数据库的内容，Java使用参数可以使对数据库的查询灵活多样，通过查询结果集可以输出查询结果。本例主要通过执行一个参数查询过程获得一个结果集，并输出查询结果。程序运行后先对student 数据库执行参数查询，接着输出查询结果集，具体输出结果要根据用户数据库来确定。-Query the database to retrieve the contents of Java, Java parameter allows flexible queries against the database, the query result set can be output through the query results. The cases mainly through the implementation of a process to get a parameter query result sets and output query results. After running first on the student database query execution parameters, and then output the query result set, the specific output to be determined according to the user database.