差不多应该这样:int count = 0;
while(rs.next()) {
System.out.println(....);
count++;
if(3 == count) {
System.out.println();
count = 0;
}
}
while(rs.next()) {
System.out.println(....);
count++;
if(3 == count) {
System.out.println();
count = 0;
}
}
解决方案 »
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public class TestCon{
public static void main(String[] args){
Connection con = null;
String DRIVERNAME = "com.mysql.jdbc.Driver";
String URL = "jdbc:mysql://localhost:3306/photo?useUnicode=true&characterEncoding=utf-8";
String user = "root" ;
String password = "root" ;
String fullURL = URL+"&user="+user+"&password="+password ;
try{
Class.forName(DRIVERNAME);
System.out.println("Driver OK!");
}catch(Exception e){
System.out.println("Driver fail!");
e.printStackTrace();
} try{
con = DriverManager.getConnection(fullURL);
System.out.println("Connection OK!");
}catch(Exception e){
System.out.println("Connection fail!");
e.printStackTrace();
} try{
Statement stmt = con.createStatement();
stmt.executeUpdate("insert into entity1 values ('aa',1,2,3,4,5)");
ResultSet rs = stmt.executeQuery("select * from entity1");
int i = 0;
while(rs.next()){
System.out.println(rs.getString("a"));
i++;
if(i==3){
i = 0;
System.out.println("\n"); //±¾ÉíÓл»ÐÐ
}
} con.close();
}catch(Exception e){
e.printStackTrace();
}
}
};