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package com.yzy.jdbc.dao;
import java.sql.CallableStatement;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import oracle.jdbc.OracleTypes;
public class LoginDao {
 public boolean loginValidate(String username, String password) {
  boolean isValid = false;
  try {
   Class.forName("oracle.jdbc.driver.OracleDriver");
   String url = "jdbc:oracle:thin:@127.0.0.1:1521:orcl";
   Connection conn = DriverManager.getConnection(url, "scott", "yzy");
   CallableStatement cstmt = null;
   ResultSet rs = null;
   String sql = "{ call p_validate(?,?,?) }";
   cstmt = conn.prepareCall(sql);
   cstmt.setString(1, username);
   cstmt.setString(2, password);
   cstmt.registerOutParameter(3, OracleTypes.NUMBER);
   cstmt.execute();
   long num = cstmt.getLong(3);
   if (num > 0) {
    isValid = true;
   }
  } catch (Exception e) {
   e.printStackTrace();
  }
  return isValid;
 }
}
Java³ÌÐòµ÷Óô洢¹ý³Ì²éѯ²¢·µ»Ø½á¹û¼¯
package com.yzy.jdbc.dao;
import java.sql.CallableStatement;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import oracle.jdbc.OracleTypes;
public class Demo2Dao {
 public void query() {
  boolean isValid = false;
  try {
   Class.forName("oracle.jdbc.driver.OracleDriver");
   String url = "jdbc:oracle:thin:@127.0.0.1:1521:orcl";
   Connection conn = DriverManager.getConnection(url, "scott", "yzy");
   CallableStatement cstmt = null;
   ResultSet rs = null;
   String sql = "{ call  pack_res.p_g


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import java.io.IOException;
import javax.imageio.ImageIO;
public class createXml
{
public static boolean writeXml(String path,String dir,String wpath,String wname)
{
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