java数据库日期处理用法
2007-12-22 16:07
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JDBC日期处理用法详解,可以作为一个连接JDBC的标准类
package JDBC;
import java.sql.Connection;
import java.sql.Date;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.DriverManager;
import java.sql.Statement;
import java.sql.Time;
import java.sql.Timestamp;
import java.text.SimpleDateFormat;
import java.util.Calendar;
/** *//**
*
* @author oakertree
*
*/
public class TestJDBCDate {
public static void main(String[] args) {
Connection con = null;
Statement stmt = null;
ResultSet rs = null;
try {
Class.forName("com.mysql.jdbc.Driver");
// new com.mysql.jdbc.Driver();
con = DriverManager.getConnection("jdbc:mysql://localhost:3307/test", "root", "admini");
stmt = con.createStatement();
rs = stmt.executeQuery("SELECT * FROM time");
while(rs.next()) {
/**//*
Date d = rs.getDate("date");
// SimpleDateFormat sdf = new SimpleDateFormat("yyyy年MM月dd日");
System.out.println(sdf.format(d));
*/
/**//*
Time t = rs.getTime("time");
SimpleDateFormat sdf = new SimpleDateFormat("HH时mm分ss秒");
System.out.println(sdf.format(t));
*/
Date d = rs.getDate("datetime");
Time t = rs.getTime("datetime");
SimpleDateFormat sdfdate = new SimpleDateFormat("yyyy年MM月dd日");
SimpleDateFormat sdftime = new SimpleDateFormat("HH时mm分ss秒");
System.out.println(sdfdate.format(d) + sdftime.format(t));
/**//*
Timestamp dt = rs.getTimestamp("datetime");
SimpleDateFormat sdf = new SimpleDateFormat("yyyy年MM月dd日HH时mm分ss秒");
System.out.println(sdf.format(dt));
*/
//得到日期中的月
/**//*
Calendar c = Calendar.getInstance();
c.setTime(d);
System.out.println(c.get(Calendar.MONTH));
*/
}
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (SQLException e) {
e.printStackTrace();
} finally {
try {
if(rs != null) {
rs.close();
rs = null;
}
if(stmt != null) {
stmt.close();
stmt = null;
}
if(con != null) {
con.close();
con = null;
}
} catch (SQLException e) {
e.printStackTrace();
}
}
}
}
/**//*
+----------+----------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+----------+----------+------+-----+---------+-------+
| date | date | YES | | NULL | |
| time | time | YES | | NULL | |
| datetime | datetime | YES | | NULL | |
+----------+----------+------+-----+---------+-------+
*/
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import java.sql.Connection;
import java.sql.Date;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.DriverManager;
import java.sql.Statement;
import java.sql.Time;
import java.sql.Timestamp;
import java.text.SimpleDateFormat;
import java.util.Calendar;
/** *//**
*
* @author oakertree
*
*/
public class TestJDBCDate {
public static void main(String[] args) {
Connection con = null;
Statement stmt = null;
ResultSet rs = null;
try {
Class.forName("com.mysql.jdbc.Driver");
// new com.mysql.jdbc.Driver();
con = DriverManager.getConnection("jdbc:mysql://localhost:3307/test", "root", "admini");
stmt = con.createStatement();
rs = stmt.executeQuery("SELECT * FROM time");
while(rs.next()) {
/**//*
Date d = rs.getDate("date");
// SimpleDateFormat sdf = new SimpleDateFormat("yyyy年MM月dd日");
System.out.println(sdf.format(d));
*/
/**//*
Time t = rs.getTime("time");
SimpleDateFormat sdf = new SimpleDateFormat("HH时mm分ss秒");
System.out.println(sdf.format(t));
*/
Date d = rs.getDate("datetime");
Time t = rs.getTime("datetime");
SimpleDateFormat sdfdate = new SimpleDateFormat("yyyy年MM月dd日");
SimpleDateFormat sdftime = new SimpleDateFormat("HH时mm分ss秒");
System.out.println(sdfdate.format(d) + sdftime.format(t));
/**//*
Timestamp dt = rs.getTimestamp("datetime");
SimpleDateFormat sdf = new SimpleDateFormat("yyyy年MM月dd日HH时mm分ss秒");
System.out.println(sdf.format(dt));
*/
//得到日期中的月
/**//*
Calendar c = Calendar.getInstance();
c.setTime(d);
System.out.println(c.get(Calendar.MONTH));
*/
}
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (SQLException e) {
e.printStackTrace();
} finally {
try {
if(rs != null) {
rs.close();
rs = null;
}
if(stmt != null) {
stmt.close();
stmt = null;
}
if(con != null) {
con.close();
con = null;
}
} catch (SQLException e) {
e.printStackTrace();
}
}
}
}
/**//*
+----------+----------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+----------+----------+------+-----+---------+-------+
| date | date | YES | | NULL | |
| time | time | YES | | NULL | |
| datetime | datetime | YES | | NULL | |
+----------+----------+------+-----+---------+-------+
*/
阅读更多
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