Apache DBUtils:使用Bean(ORM)例子

2014-11-24 02:53:07 · 作者: · 浏览: 1

Java代码
import org.apache.commons.dbutils.DbUtils;
import org.apache.commons.dbutils.QueryRunner;
import org.apache.commons.dbutils.handlers.BeanListHandler;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;

import java.util.List;

public class DbUtilsUseBeanMySQL {
public static void main(String[] args) {
Connection conn = null;
String jdbcURL = "jdbc:mysql://localhost/octopus";
String jdbcDriver = "com.mysql.jdbc.Driver";
String user = "root";
String password = "root";

try {
DbUtils.loadDriver(jdbcDriver);
conn = DriverManager.getConnection(jdbcURL, user, password);

QueryRunner qRunner = new QueryRunner();
List beans = (List) qRunner.query(conn, "select id, name from animals_table",
new BeanListHandler(Employee.class));

for (int i = 0; i < beans.size(); i++) {
Employee bean = (Employee) beans.get(i);
bean.print();
}
} catch (SQLException e) {
// handle the exception
e.printStackTrace();
} finally {

DbUtils.closeQuietly(conn);
}
}
}

class Employee {

private int id;
private String name;

public Employee() {
}

public void setName(String name) {
this.name = name;
}

public String getName() {
return this.name;
}

public void setId(int id) {
this.id = id;
}

public int getId() {
return this.id;
}

public void print() {
System.out.println("id="+id+" name="+name);
}
}
作者“天道酬勤”