java.lang.ClassNotFoundException

Question

 这是错误

这是错误的地方第28行 

 这是UserDao类代码

package cn.login.user;

import org.springframework.dao.DataAccessException;
import org.springframework.jdbc.core.BeanPropertyRowMapper;
import org.springframework.jdbc.core.JdbcTemplate;
import util.JDBCUtil;

public class UserDao {
    //声明公有的JdbcTemplate对象公用
    private JdbcTemplate template = new JdbcTemplate(JDBCUtil.getDataSource());

    /**
     * 获取数据库中用户的信息
     */
    public User login(User user) {
        System.out.println("我来啦");
        try {
            //1、编写sql
            String sql = "select * from user where username=? and password=?";
            //2、调用query
            User user1 = template.queryForObject(sql, new BeanPropertyRowMapper<User>(User.class), user.getUsername(), user.getPassword());
            System.out.println("我走啦1");
            return user1;
        } catch (DataAccessException e) {
            e.printStackTrace();
            System.out.println("我走啦2");
            return null;
        }
    }
}

 

Answer 1

建议检查jar冲突