不会吧?这么夸张?!我写得不好,如果你不介意,可以参考下我的吧,不过是业余水平的拉。
import java.util.*;
import java.sql.*;
import java.io.*;
import java.sql.*;public class mysql {
Connection conn=null;
Statement statement=null;
PreparedStatement pstmt=null;
ResultSet rs=null; public mysql(){
try{
Class.forName("org.gjt.mm.mysql.Driver");
}catch(ClassNotFoundException e)
{System.err.println("mysql():"+e.getMessage());}
String url="jdbc:mysql://localhost:3306/Sample?user=root;password=";
try{
conn=DriverManager.getConnection(url);
statement = conn.createStatement();
}catch(SQLException sqlEx)
{System.err.println(sqlEx.getMessage());}
}
public ResultSet executeQuery(String sql)
{
try{
rs = statement.executeQuery(sql);
}catch(SQLException ex)
{
System.err.println("executeQuery():"+ex.getMessage());
}
return rs;
} public int executeUpdate(String sql)
{
int i=0;
try{
i = statement.executeUpdate(sql);
}catch(SQLException ex)
{
System.err.println("executeUpdate():"+ex.getMessage());
}
return i;
}
}
import java.util.*;
import java.sql.*;
import java.io.*;
import java.sql.*;public class mysql {
Connection conn=null;
Statement statement=null;
PreparedStatement pstmt=null;
ResultSet rs=null; public mysql(){
try{
Class.forName("org.gjt.mm.mysql.Driver");
}catch(ClassNotFoundException e)
{System.err.println("mysql():"+e.getMessage());}
String url="jdbc:mysql://localhost:3306/Sample?user=root;password=";
try{
conn=DriverManager.getConnection(url);
statement = conn.createStatement();
}catch(SQLException sqlEx)
{System.err.println(sqlEx.getMessage());}
}
public ResultSet executeQuery(String sql)
{
try{
rs = statement.executeQuery(sql);
}catch(SQLException ex)
{
System.err.println("executeQuery():"+ex.getMessage());
}
return rs;
} public int executeUpdate(String sql)
{
int i=0;
try{
i = statement.executeUpdate(sql);
}catch(SQLException ex)
{
System.err.println("executeUpdate():"+ex.getMessage());
}
return i;
}
}
解决方案 »
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