话不多说，直接上代码。两代关于JDBC的代码，结果集到类对象的赋值。可直接使用于项目中。
作用：避免于大量的Setter/Getter的使用。

结果集到单一对象，一般用于查询单行记录时使用。

 public static <T> T toOneRowObject(ResultSet rs, Class<T> beanClass) throws Exception {
        T bean = null;
        ResultSetMetaData metaData = rs.getMetaData();
        if (rs.next()) {
            bean = beanClass.newInstance();
            int count = metaData.getColumnCount();
            Object columnValue = "";
            for (int idx = 1; idx <= count; idx++) {
                columnValue = rs.getObject(idx);
                switch(metaData.getColumnType(idx)){
                    case Types.TIMESTAMP:
                    case Types.TIME:
                    case Types.DATE:
                        columnValue = String.valueOf(rs.getObject(idx));
                        break;
                    case Types.BIGINT:
                        columnValue = rs.getInt(idx);
                        break;
                }
                PropertyUtils.setProperty(bean, metaData.getColumnLabel(idx), columnValue);
            }
        }
        return bean;
    }

结果集到多对象，使用于查询多行记录集。

public static <T> Vector<T> toMultiRowObject(ResultSet rs,Class<T> beanClass) throws Exception{
        Vector<T> vc = new Vector<T>();
        ResultSetMetaData metaData = rs.getMetaData();
        int count = metaData.getColumnCount();
        T bean = null;
        Object columnValue = "";
        try{
            while(rs.next()){
                bean = beanClass.newInstance();
                for(int idx = 1;idx <= count;idx++){
                    columnValue = rs.getObject(idx);
                    switch(metaData.getColumnType(idx)){
                        case Types.TIMESTAMP:
                        case Types.TIME:
                        case Types.DATE:
                            columnValue = String.valueOf(rs.getObject(idx));
                            break;
                        case Types.BIGINT:
                            columnValue = rs.getInt(idx);
                            break;
                    }
                    PropertyUtils.setProperty(bean, metaData.getColumnLabel(idx), columnValue);
                }
                vc.add(bean);
            }
        }catch(Exception e){
            throw new Exception("column value : " + columnValue, e);
        }
        
        return vc;
    }

Demo清单：

        Connection conn = null;
        try {
            Class.forName("com.mysql.jdbc.Driver");
            conn = DriverManager.getConnection(DBURL,DBUSER,DBPWD);
            Statement stmt = conn.createStatement();
            ResultSet rs = stmt.executeQuery("select * From t_user");
            Vector vc = DBHelper.toMultiRowObject(rs, UserBean.class);
        } catch (Exception e) {
            log.error(sql.toString(), e);
            e.printStackTrace();
        } finally {
            conn.close();
        }

?