java.util.Date的转换

package www.629niuniu.com;


import java.text.ParseException;


import java.text.SimpleDateFormat;
import java.util.Date;


public class Test {
public static void method1(){
// java.util.Date转换java.sql.Date
Date utilDate = new Date();
java.sql.Date sqlDate = new java.sql.Date(utilDate.getTime());
System.out.println(sqlDate);
// java.sql.Date转换为java.util.Date
// Date utilDate2 = sqlDate;
Date utilDate2 = new Date(sqlDate.getTime());
System.out.println("utilDate2:"+utilDate2);
}
public static void method2() throws ParseException{
// 字符串转换为java.util.Date
SimpleDateFormat dateFormat = 
new SimpleDateFormat("yyyy-mm-dd");
Date utilDate = dateFormat.parse("2017-08-1");
System.out.println(utilDate);
}
public static void method3() throws ParseException{
// java.util.Date转换为字符串
Date utilDate = new SimpleDateFormat("yyyy-mm-dd").parse("2017-08-1");
SimpleDateFormat dateFormat = 
new SimpleDateFormat("yyyy-mm-dd");
String strDate = dateFormat.format(utilDate);
System.out.println(strDate);
}
public static void main(String[] args) {
try {
method1();
} catch (Exception e) {
e.printStackTrace();
}
}
}