package com.tengyang.oop.ch11;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
public class Test3 {
public static void main(String[] args) {
Connection conn = null;
Statement ste = null;
try {
//加载驱动
Class.forName("com.mysql.jdbc.Driver");
//创建Connection对象
conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/mydb", "root", "root");
//编写Sql语句
String sql = "select name,id from tablename1";
//创建Statement
ste = conn.createStatement();
//执行sql语句
ResultSet rs = ste.executeQuery(sql);
while(rs.next()){
int id = rs.getInt("id");
String name = rs.getString("name");
System.out.println("id:"+id+"name:"+name);
}
} catch (ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}执行结果:<ConnectionProperties>
<PropertyCategory name="Connection/Authentication">
<Property name="user" required="No" default="" sortOrder="-2147483647" since="all versions">
The user to connect as
</Property>
<Property name="password" required="No" default="" sortOrder="-2147483646" since="all versions">
The password to use when connecting
</Property>
……
……
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
public class Test3 {
public static void main(String[] args) {
Connection conn = null;
Statement ste = null;
try {
//加载驱动
Class.forName("com.mysql.jdbc.Driver");
//创建Connection对象
conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/mydb", "root", "root");
//编写Sql语句
String sql = "select name,id from tablename1";
//创建Statement
ste = conn.createStatement();
//执行sql语句
ResultSet rs = ste.executeQuery(sql);
while(rs.next()){
int id = rs.getInt("id");
String name = rs.getString("name");
System.out.println("id:"+id+"name:"+name);
}
} catch (ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}执行结果:<ConnectionProperties>
<PropertyCategory name="Connection/Authentication">
<Property name="user" required="No" default="" sortOrder="-2147483647" since="all versions">
The user to connect as
</Property>
<Property name="password" required="No" default="" sortOrder="-2147483646" since="all versions">
The password to use when connecting
</Property>
……
……
要么报错.要么输出
id: name:
什么的楼猪把你的数据库导出发出来看看。我看你发了两个帖子。但是真的没见过这种输出结果的。