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queryForList is for simple types only (Integer, String, Long)... Spring has no way to know how to construct your object, that is what the query method is for.
jdbcTemplate的queryForList方法只适合查询列表元素为Integer, String, Long等单一类型对象的数据,像User,Student等会报错:
org.springframework.jdbc.IncorrectResultSetColum ...
最近在研究java代码的生命周期。这其中遇到一个java代码初始化的问题。 代码如下： public class JvmTest { private static int count1; private static int count2 = 0; private static JvmTest JvmTest =new JvmTest(); public JvmTest() { System.out.println("JvmTest&quo ...