发现一个操作JDBC的好的apache工具包

   Jakarta Commons的dbutils(http://commons.apache.org/dbutils/ )是很不错的，操作JDBC的工具类,举个例子如下,比较简单

 

mport java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;
import java.util.Iterator;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.util.List;
import java.util.Map;
import org.apache.commons.dbutils.DbUtils;
import org.apache.commons.dbutils.QueryRunner;
import org.apache.commons.dbutils.handlers.BeanListHandler;
import org.apache.commons.dbutils.handlers.MapListHandler;

public class BeanutilsJDBCTest{
  public static void main(String[] args) {
         Connection conn = null;
         String jdbcURL = "jdbc:mysql://127.0.0.1:3306/beanutildemo?useUnicode=true&characterEncoding=GBK";
         String jdbcDriver = "com.mysql.jdbc.Driver";
         try {
             DbUtils.loadDriver(jdbcDriver);
             // Username "root". Password "root"
             conn = DriverManager.getConnection(jdbcURL, "root", "1979621");
             QueryRunner qRunner = new QueryRunner();
             System.out.println("***Using MapListHandler***");
             //以下部分代码采用Map存储方式，可以采用Bean的方式代替进行处理
          /** List lMap = (List) qRunner.query(conn,
                     "select title,authors  from book", new MapListHandler());
             //以下是处理代码，可以抽取出来
 System.out.println("title ------------- authors ");
                 for (int i = 0; i < lMap.size(); i++) {
                         Map vals = (Map) lMap.get(i);
                         System.out.println(vals.get("title")+"-------------"+ vals.get("authors"));
                 }**/
            
             List lBeans = (List) qRunner.query(conn," select title,authors from book ", new BeanListHandler(Book.class));
             //以下是处理代码，可以抽取出来
         System.out.println("title ------------- authors ");
             for (int i = 0; i < lBeans.size(); i++) {
                     Book vals = (Book) lBeans.get(i);   
                   System.out.println(vals.getTitle ()+"-------------"+ vals. getAuthors ());
                         }

         } catch (SQLException ex) {
             ex.printStackTrace();
         } finally {
             DbUtils.closeQuietly(conn);
         }
     }

 

2  还有个很典型的简单替代以前麻烦的用法哦
     以前要这样:
   

try {
   stmt = conn.createStatement();
   rs = stmt.executeQuery(strSql);
   
     while (rs.next()) {
    DeptVO dept = new DeptVO();
    dept.setId(rs.getInt("id"));
    dept.setName(rs.getString("name"));
    dept.setEmail(rs.getString("email"));
    dept.setTel(rs.getString("tel"));
    dept.setAddress(rs.getString("address"));
    list.add(dept);
        }

现在可以这样了
  

try {
   stmt = conn.createStatement();
   rs = stmt.executeQuery(strSql);
   
    rsdc = new ResultSetDynaClass(rs,false);
        dp = rsdc.getDynaProperties();
        rows = rsdc.iterator();

           while(rows.hasNext()){
          DeptVO dept = new DeptVO();
          DynaBean row = (DynaBean) rows.next();
             PropertyUtils.copyProperties(dept ,row);
             list.add(dept);

         
         }