我知道，这个问题已经回答了，但可能像我这样的人需要通过标签而不是索引访问DatabaseMetaData的列名:

ResultSet resultSet = null;
DatabaseMetaData metaData = null;

    try {
        metaData  = connection.getMetaData();
        resultSet = metaData.getColumns(null, null, tableName, null);

        while (resultSet.next()){
            String name = resultSet.getString("COLUMN_NAME");
        }
    }

SQLite 3

教科书getMetaData ();

DatabaseMetaData md = conn.getMetaData();
ResultSet rset = md.getColumns(null, null, "your_table_name", null);

System.out.println("your_table_name");
while (rset.next())
{
    System.out.println("\t" + rset.getString(4));
}

编辑:这也适用于PostgreSQL

从数据库查询中读取数据的SQL语句返回结果集中的数据。SELECT语句是从数据库中选择行并在结果集中查看它们的标准方法。* * java.sql。ResultSet**接口表示数据库查询的结果集。

Get方法:用于查看当前行各列的数据 被光标指向。

使用结果集的MetaData获取准确的列数

ResultSet rs = stmt.executeQuery("SELECT a, b, c FROM TABLE2");
ResultSetMetaData rsmd = rs.getMetaData();
int numberOfColumns = rsmd.getColumnCount();
boolean b = rsmd.isSearchable(1);

http://docs.oracle.com/javase/7/docs/api/java/sql/ResultSetMetaData.html

并进一步将其绑定到数据模型表

public static void main(String[] args) {
    Connection conn = null;
    Statement stmt = null;
    try {
        //STEP 2: Register JDBC driver
        Class.forName("com.mysql.jdbc.Driver");

        //STEP 3: Open a connection
        System.out.println("Connecting to a selected database...");
        conn = DriverManager.getConnection(DB_URL, USER, PASS);
        System.out.println("Connected database successfully...");

        //STEP 4: Execute a query
        System.out.println("Creating statement...");
        stmt = conn.createStatement();

        String sql = "SELECT id, first, last, age FROM Registration";
        ResultSet rs = stmt.executeQuery(sql);
        //STEP 5: Extract data from result set
        while(rs.next()){
            //Retrieve by column name
            int id  = rs.getInt("id");
            int age = rs.getInt("age");
            String first = rs.getString("first");
            String last = rs.getString("last");

            //Display values
            System.out.print("ID: " + id);
            System.out.print(", Age: " + age);
            System.out.print(", First: " + first);
            System.out.println(", Last: " + last);
        }
        rs.close();
    } catch(SQLException se) {
        //Handle errors for JDBC
        se.printStackTrace();
    } catch(Exception e) {
        //Handle errors for Class.forName
        e.printStackTrace();
    } finally {
        //finally block used to close resources
        try {
            if(stmt!=null)
                conn.close();
        } catch(SQLException se) {
        } // do nothing
        try {
            if(conn!=null)
                conn.close();
        } catch(SQLException se) {
            se.printStackTrace();
        } //end finally try
    }//end try
    System.out.println("Goodbye!");
}//end main
//end JDBCExample

非常好的教程:http://www.tutorialspoint.com/jdbc/

ResultSetMetaData meta = resultset.getMetaData();  // for a valid resultset object after executing query

Integer columncount = meta.getColumnCount();

int count = 1 ; // start counting from 1 always

String[] columnNames = null;

while(columncount <=count) {
    columnNames [i] = meta.getColumnName(i);
}

System.out.println (columnNames.size() ); //see the list and bind it to TableModel object. the to your jtbale.setModel(your_table_model);

import java.sql.*;

public class JdbcGetColumnNames {

    public static void main(String args[]) {
        Connection con = null;
        Statement st = null;
        ResultSet rs = null;

        try {
            Class.forName("com.mysql.jdbc.Driver");
            con = DriverManager.getConnection(
                    "jdbc:mysql://localhost:3306/komal", "root", "root");

            st = con.createStatement();

            String sql = "select * from person";
            rs = st.executeQuery(sql);
            ResultSetMetaData metaData = rs.getMetaData();

            int rowCount = metaData.getColumnCount();

            System.out.println("Table Name : " + metaData.getTableName(2));
            System.out.println("Field  \tDataType");

            for (int i = 0; i < rowCount; i++) {
                System.out.print(metaData.getColumnName(i + 1) + "  \t");
                System.out.println(metaData.getColumnTypeName(i + 1));
            }
        } catch (Exception e) {
            System.out.println(e);
        }
    }
}

表名:人 字段数据类型 id VARCHAR cname VARCHAR 强加于人的日期

@Cyntech是对的。

如果你的表是空的，你仍然需要得到表的列名，你可以得到你的列类型为Vector，如下所示:

ResultSet rs = stmt.executeQuery("SELECT a, b, c FROM TABLE2");
ResultSetMetaData rsmd = rs.getMetaData();
int columnCount = rsmd.getColumnCount();

Vector<Vector<String>>tableVector = new Vector<Vector<String>>(); 
boolean isTableEmpty = true;
int col = 0;

 while(rs.next())
    {
      isTableEmpty = false;  //set to false since rs.next has data: this means the table is not empty
       if(col != columnCount)
          {
            for(int x = 1;x <= columnCount;x++){
                 Vector<String> tFields = new Vector<String>(); 
                 tFields.add(rsmd.getColumnName(x).toString());
                 tableVector.add(tFields);
             }
            col = columnCount;
          }
     } 


      //if table is empty then get column names only
  if(isTableEmpty){  
      for(int x=1;x<=colCount;x++){
           Vector<String> tFields = new Vector<String>(); 
           tFields.add(rsmd.getColumnName(x).toString());
           tableVector.add(tFields);
        }
      }

 rs.close();
 stmt.close();

 return tableVector; 

如果你想使用spring jdbctemplate并且不想处理连接人员，你可以使用以下方法:

jdbcTemplate.query("select * from books", new RowCallbackHandler() {
        public void processRow(ResultSet resultSet) throws SQLException {
            ResultSetMetaData rsmd = resultSet.getMetaData();
            for (int i = 1; i <= rsmd.getColumnCount(); i++ ) {
                String name = rsmd.getColumnName(i);
                // Do stuff with name
            }
        }
    });