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  • mybatis获取表信息,以及遍历ResultSet

    @RunWith(SpringRunner.class)
    @SpringBootTest
    public class BravolinksCrmServerApplicationTests {
    
    	@Autowired
    	private SqlSessionFactory sqlSessionFactory;
    
    	@Test
    	public void contextLoads() throws SQLException {
    		Connection conn = sqlSessionFactory.openSession().getConnection();
    		DatabaseMetaData data = conn.getMetaData();
    		ResultSet rs = data.getColumns(null,null,"PM_DUOCIDUIZHANG","%");
    //		while (rs.next()){
    //			//打印字段name信息
    //			System.out.println(rs.getString("COLUMN_NAME"));
    //		}
    
    		//遍历resultset
    		List<Map<String,Object>> list = new ArrayList<>();
    		ResultSetMetaData rsmd = rs.getMetaData();
    		int count = rsmd.getColumnCount();
    		while (rs.next()) {
    			Map rowData = new HashMap();//声明Map
    			for (int i = 1; i <= count; i++) {
    				System.out.println(rsmd.getColumnName(i)+"="+rs.getObject(i));
    				rowData.put(rsmd.getColumnName(i), rs.getObject(i));//获取键名及值
    			}
    			list.add(rowData);
    		}
    		System.out.println("list = " + list.size());
    	}
    }
    

      

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  • 原文地址:https://www.cnblogs.com/yanqin/p/6958032.html
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