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| package wxy.jsp.mysql;
import java.sql.*;
import java.lang.String;
public class sqlBean
{
Connection conn;
Statement stmt;
ResultSet rs;
public sqlBean()
{
}
public void init(String dburl, String db_user, String db_passwd)
{
try
{
Class.forName("com.mysql.jdbc.Driver").newInstance();
conn = DriverManager.getConnection(dburl, db_user, db_passwd);
}
catch(IllegalAccessException iae)
{
System.err.println("Load Driver Error: " + iae.getMessage());
}
catch(InstantiationException ie)
{
System.err.println("Load Driver Error: " + ie.getMessage());
}
catch(java.lang.ClassNotFoundException e)
{
System.err.println("Load Driver Error: " + e.getMessage());
}
catch(SQLException ex)
{
System.err.println("Get Connection Error: " + ex.getMessage());
}
}
public void init()
{
try
{
String url = "jdbc:mysql://localhost/novel?user=root&password=root";
Class.forName("com.mysql.jdbc.Driver").newInstance();
conn = DriverManager.getConnection(url);
}
catch(IllegalAccessException iae)
{
System.err.println("Load Driver Error: " + iae.getMessage());
}
catch(InstantiationException ie)
{
System.err.println("Load Driver Error: " + ie.getMessage());
}
catch(java.lang.ClassNotFoundException e)
{
System.err.println("Load Driver Error: " + e.getMessage());
}
catch(SQLException ex)
{
System.err.println("Get Connection Error: " + ex.getMessage());
}
}
public ResultSet executeQuery(String sql)
{
if (conn == null)
init();
try
{
if (stmt == null)
stmt = conn.createStatement();
rs = stmt.executeQuery(sql);
}
catch(SQLException ex)
{
System.err.println("SQL Error: " + ex.getMessage());
}
return rs;
}
public void executeUpdate(String sql)
{
if (conn == null)
init();
try
{
if (stmt == null)
stmt = conn.createStatement();
stmt.executeUpdate(sql);
}
catch(SQLException ex)
{
System.err.println("SQL Error: " + ex.getMessage());
}
}
public int executeU(String sql)
{
try
{
String url = "jdbc:mysql://localhost/novel?user=root&password=root";
Class.forName("com.mysql.jdbc.Driver").newInstance();
Connection conn = DriverManager.getConnection(url);
Statement stmt = conn.createStatement();
stmt.executeUpdate(sql);
stmt.close();
conn.close();
}
catch(IllegalAccessException iae)
{
System.err.println("Load Driver Error: " + iae.getMessage());
}
catch(InstantiationException ie)
{
System.err.println("Load Driver Error: " + ie.getMessage());
}
catch(java.lang.ClassNotFoundException e)
{
System.err.println("Load Driver Error: " + e.getMessage());
}
catch (SQLException ex)
{
System.err.println("SQL Error: " + ex.getMessage());
}
return 0;
}
public ResultSet executeQ(String sql)
{
try
{
String url = "jdbc:mysql://localhost/novel?user=root&password=root";
Class.forName("com.mysql.jdbc.Driver").newInstance();
Connection conn = DriverManager.getConnection(url);
Statement stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery(sql);
stmt.close();
conn.close();
return rs;
}
catch(IllegalAccessException iae)
{
System.err.println("Load Driver Error: " + iae.getMessage());
}
catch(InstantiationException ie)
{
System.err.println("Load Driver Error: " + ie.getMessage());
}
catch(java.lang.ClassNotFoundException e)
{
System.err.println("Load Driver Error: " + e.getMessage());
}
catch (SQLException ex)
{
System.err.println("SQL Error: " + ex.getMessage());
}
return rs;
}
public void close() throws SQLException
{
stmt.close();
conn.close();
}
public static boolean SafeCheck(String str)
{
str += " ";
String inj_str = "'|and|exec|insert|select|delete|update|count|*|%|chr|mid|master|truncate|char|declare|;|or|-|+|,";
String inj_stra[] = inj_str.split("|");
for (int i = 0 ; i < inj_stra.length ; i++ )
{
if (str.indexOf(inj_stra[i]) > 0)
{
return false;
}
}
return true;
}
}
|
