WebDev Hell
This commit is contained in:
		@@ -16,12 +16,5 @@ Any value defined here will override the pom.xml file value but is only applicab
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        <org-netbeans-modules-maven-j2ee.netbeans_2e_hint_2e_j2eeVersion>10-web</org-netbeans-modules-maven-j2ee.netbeans_2e_hint_2e_j2eeVersion>
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        <org-netbeans-modules-maven-j2ee.netbeans_2e_hint_2e_deploy_2e_server>gfv700ee10</org-netbeans-modules-maven-j2ee.netbeans_2e_hint_2e_deploy_2e_server>
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        <org-netbeans-modules-projectapi.jsf_2e_language>Facelets</org-netbeans-modules-projectapi.jsf_2e_language>
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        <netbeans.hint.jdkPlatform>JDK_11__System_</netbeans.hint.jdkPlatform>
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        <org-netbeans-modules-css-prep.less_2e_mappings>/less:/css</org-netbeans-modules-css-prep.less_2e_mappings>
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        <org-netbeans-modules-css-prep.less_2e_enabled>false</org-netbeans-modules-css-prep.less_2e_enabled>
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        <org-netbeans-modules-css-prep.sass_2e_enabled>false</org-netbeans-modules-css-prep.sass_2e_enabled>
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        <org-netbeans-modules-css-prep.sass_2e_compiler_2e_options/>
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        <org-netbeans-modules-css-prep.less_2e_compiler_2e_options/>
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        <org-netbeans-modules-css-prep.sass_2e_mappings>/scss:/css</org-netbeans-modules-css-prep.sass_2e_mappings>
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    </properties>
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</project-shared-configuration>
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@@ -23,11 +23,6 @@
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            <version>${jakartaee}</version>
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            <scope>provided</scope>
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        </dependency>
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        <dependency>
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            <groupId>mysql</groupId>
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            <artifactId>mysql-connector-java</artifactId>
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            <version>8.0.33</version>
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        </dependency>
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    </dependencies>
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    <build>
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@@ -4,6 +4,7 @@
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 */
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package edu.slcc.asdv.bl;
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import java.sql.SQLException;
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import java.util.List;
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/**
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@@ -12,4 +13,7 @@ import java.util.List;
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 */
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public interface DBase<T> {
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   List<? extends List<T>> listAll();
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   int delete( T t)
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          throws SQLException;
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}
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@@ -8,7 +8,6 @@ import java.sql.ResultSet;
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import java.sql.SQLException;
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import java.text.ParseException;
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import java.text.SimpleDateFormat;
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import java.util.Date;
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import jakarta.enterprise.context.ApplicationScoped;
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import jakarta.inject.Named;
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@@ -18,17 +17,17 @@ import jakarta.inject.Named;
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 */
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@Named(value = "suppliers")
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@ApplicationScoped
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public class Suppliers implements Serializable {
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public class Suppliers implements Serializable
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{
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    String snumber = "";
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    String sname = "";
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    int status = 0;
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    String birthday = "";
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    String city = "";
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    String result = "";
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    public Suppliers()
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    {
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        connection();
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@@ -87,53 +86,91 @@ public class Suppliers implements Serializable {
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    public String getConnectionResponse()
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    {
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        Connection con = connection();
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        if (con == null) {
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            result = "cannot connect to database";
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        if (con == null)
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          {
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            result = "cannot connect to database" ;
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            return null;
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        }
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        if (con != null) {
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          }
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        if (con != null)
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          {
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            return "<p style=\"color:green\">Connection succesfull! <br />";
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        } else {
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          }
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        else
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          {
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            connection();
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            return "<p style=\"color:red\">Connection failed! <br />";
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        }
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          }
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    }
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 public static Connection getConnection(String databaseName, String userName, String password) {
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    private Connection connection() //throws InstantiationException, IllegalAccessException
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    {
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        /*
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                String databaseName = "suppliers_parts_23";
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                String userName = "admin";
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                String password = "RangerDog01!";
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                String URL2 = "com.mysql.jdbc.Driver";
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                Connection con = null;
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         */
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        String URL2 = "com.mysql.jdbc.Driver";
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        Connection con = null;
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        try {// Load Sun's jdbc driver
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            Class.forName(URL2).newInstance();
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            System.out.println("JDBC Driver loaded!");
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        } catch (Exception e) // driver not found
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        } 
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        catch (Exception e) // driver not found
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        {
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            System.err.println("Unable to load database driver");
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            System.err.println("Details : " + e);
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            return null;
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        }
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        String ip = "localhost"; //internet connection
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        String url = "jdbc:mysql://" + ip + ":3306/" + databaseName + "?useSSL=false";
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        System.out.println(url);
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        String url = "jdbc:mysql://" + ip + ":8889/" + databaseName + "?useSSL=false";
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        try {
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            con = DriverManager.getConnection(url, userName, password);
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            con.setReadOnly(false);
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        } catch (Exception e) {
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        } 
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        catch (Exception e) {
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            System.err.println(e.toString());
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            return null;
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        }
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        System.out.println("connection successfull");
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        return con;
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    }
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    private Connection connection() //throws InstantiationException, IllegalAccessException
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    {
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        String databaseName = "suppliers_parts_23";
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        String userName = "root";
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        String password = "root";
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        String URL2 = "com.mysql.jdbc.Driver";
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        Connection con = null;
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        try
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          {// Load Sun's jdbc driver
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            Class.forName(URL2).newInstance();
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            System.out.println("JDBC Driver loaded!");
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          }
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        catch (Exception e) // driver not found
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          {
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            System.err.println("Unable to load database driver");
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            System.err.println("Details : " + e);
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            return null;
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          }
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        String ip = "localhost"; //internet connection
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        String url = "jdbc:mysql://" + ip + ":8889/" + databaseName + "?useSSL=false";
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        try
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          {
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            con = DriverManager.getConnection(url, userName, password);
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            con.setReadOnly(false);
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          }
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        catch (Exception e)
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          {
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            System.err.println(e.toString());
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            return null;
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          }
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        System.out.println("connection successfull");
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        return con;
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    }
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    public void clear()
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    {
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        status = 0;
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@@ -147,63 +184,72 @@ public class Suppliers implements Serializable {
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    public void listAll()
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    {
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        Connection con = connection();
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        if (con == null) {
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            result = "cannot connect to database";
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            return;
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        }
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        if (con == null)
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          {
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            result = "cannot connect to database" ;
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            return ;
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          }
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        String table = "";
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        PreparedStatement ps = null;
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        ResultSet rs = null;
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        String sqlStr = "SELECT  *  FROM supplier";
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        try {
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        try
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          {
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            //prepare statement
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            ps = con.prepareStatement(sqlStr);
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            //execute
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            rs = ps.executeQuery();
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            int row = 0;
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            while (rs.next()) {
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            while (rs.next())
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              {
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                String sNumber = rs.getString(1) + " ";
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                String sName = rs.getString(2) + " ";
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                String bdate = rs.getDate(3) + " ";
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                String status = rs.getInt(4) + " ";
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                String bdate = rs.getDate(3) + " ";
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                String city = rs.getString(5) + " ";
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                table += sNumber + sName + bdate + status + city + "</br>";
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                row++;
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            }
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        } catch (Exception ex) {
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              }
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		||||
          }
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        catch (Exception ex)
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		||||
          {
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            ex.printStackTrace();
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		||||
        } finally {
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		||||
            try {
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		||||
                closeDatabaseConnection(con);
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		||||
          }
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        finally
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		||||
          {
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		||||
            try
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		||||
              {
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		||||
                closeDatabaseConnection(  con);
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                // close the resources 
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		||||
                if (ps != null) {
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		||||
                if (ps != null)
 | 
			
		||||
                  {
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		||||
                    ps.close();
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		||||
                }
 | 
			
		||||
            } catch (SQLException sqle) {
 | 
			
		||||
                sqle.printStackTrace();
 | 
			
		||||
            }
 | 
			
		||||
        }
 | 
			
		||||
                  }
 | 
			
		||||
              }
 | 
			
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            catch (SQLException sqle){ sqle.printStackTrace(); }
 | 
			
		||||
          }
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        result = table;
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    }
 | 
			
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 | 
			
		||||
    public void viewSupplier()
 | 
			
		||||
    {
 | 
			
		||||
        Connection con = connection();
 | 
			
		||||
        if (con == null) {
 | 
			
		||||
            result = "cannot connect to database";
 | 
			
		||||
            return;
 | 
			
		||||
        }
 | 
			
		||||
        if (con == null)
 | 
			
		||||
          {
 | 
			
		||||
            result = "cannot connect to database" ;
 | 
			
		||||
            return ;
 | 
			
		||||
          }
 | 
			
		||||
        String ret = "";
 | 
			
		||||
        PreparedStatement ps = null;
 | 
			
		||||
        ResultSet rs = null;
 | 
			
		||||
        String sqlStr = "SELECT snumber, sname, status, city, birthday  FROM supplier WHERE snumber=?";
 | 
			
		||||
        try {
 | 
			
		||||
        String sqlStr = "SELECT *  FROM supplier WHERE snumber=?";
 | 
			
		||||
        try
 | 
			
		||||
          {
 | 
			
		||||
            //prepare statement
 | 
			
		||||
            ps = con.prepareStatement(sqlStr);
 | 
			
		||||
            ps.setString(1, snumber);
 | 
			
		||||
            //execute
 | 
			
		||||
            rs = ps.executeQuery();
 | 
			
		||||
            if (rs.next()) {
 | 
			
		||||
            if (rs.next())
 | 
			
		||||
              {
 | 
			
		||||
                this.snumber = rs.getString("snumber");
 | 
			
		||||
                ret += this.snumber + " ";
 | 
			
		||||
                this.sname = rs.getString("sname");
 | 
			
		||||
@@ -212,110 +258,133 @@ public class Suppliers implements Serializable {
 | 
			
		||||
                ret += this.status + " ";
 | 
			
		||||
                this.city = rs.getString("city");
 | 
			
		||||
                ret += this.city + " ";
 | 
			
		||||
 | 
			
		||||
                
 | 
			
		||||
                Object bDate = rs.getObject("birthday");
 | 
			
		||||
                this.birthday = bDate.toString();
 | 
			
		||||
                ret += this.birthday;
 | 
			
		||||
            } else {
 | 
			
		||||
                ret += this.birthday;                 
 | 
			
		||||
              }
 | 
			
		||||
            else
 | 
			
		||||
                ret = this.snumber + " doesn't exist.";
 | 
			
		||||
            }
 | 
			
		||||
        } catch (Exception ex) {
 | 
			
		||||
            ex.printStackTrace();
 | 
			
		||||
        } finally {
 | 
			
		||||
            try {
 | 
			
		||||
           }
 | 
			
		||||
        catch (Exception ex){ex.printStackTrace();}
 | 
			
		||||
        finally
 | 
			
		||||
          {
 | 
			
		||||
            try
 | 
			
		||||
              {
 | 
			
		||||
                this.closeDatabaseConnection(con);
 | 
			
		||||
                if (ps != null) {
 | 
			
		||||
                if (ps != null)
 | 
			
		||||
                    ps.close();
 | 
			
		||||
                }
 | 
			
		||||
            } catch (SQLException sqle) {
 | 
			
		||||
                sqle.printStackTrace();
 | 
			
		||||
            }
 | 
			
		||||
        }
 | 
			
		||||
              }
 | 
			
		||||
            catch (SQLException sqle){ sqle.printStackTrace();}
 | 
			
		||||
          }
 | 
			
		||||
        this.result = ret;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    public void updateSupplier()
 | 
			
		||||
    {
 | 
			
		||||
        Connection con = connection();
 | 
			
		||||
        if (con == null) {
 | 
			
		||||
            result = "cannot connect to database";
 | 
			
		||||
            return;
 | 
			
		||||
        }
 | 
			
		||||
        if (con == null)
 | 
			
		||||
          {
 | 
			
		||||
            result = "cannot connect to database" ;
 | 
			
		||||
            return ;
 | 
			
		||||
          }
 | 
			
		||||
        PreparedStatement updateSupplier = null;
 | 
			
		||||
        try {
 | 
			
		||||
        try
 | 
			
		||||
          {
 | 
			
		||||
 | 
			
		||||
            updateSupplier = con.prepareStatement(
 | 
			
		||||
                    "UPDATE supplier SET snumber=?, sname=?, status=?, birthday=?, city=? WHERE snumber=?");
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
            updateSupplier.setString(1, snumber);
 | 
			
		||||
            updateSupplier.setString(2, sname);
 | 
			
		||||
            updateSupplier.setInt(3, status);
 | 
			
		||||
            java.sql.Date bd = stringDateToSqlDate(this.birthday);
 | 
			
		||||
            updateSupplier.setDate(4, bd);
 | 
			
		||||
             java.sql.Date  bd = stringDateToSqlDate(this.birthday);
 | 
			
		||||
            updateSupplier.setDate(4, bd );
 | 
			
		||||
            updateSupplier.setString(5, city);
 | 
			
		||||
            updateSupplier.setString(6, snumber);
 | 
			
		||||
            int updateCount = updateSupplier.executeUpdate();
 | 
			
		||||
 | 
			
		||||
            result = "number of rows affected: " + updateCount;
 | 
			
		||||
 | 
			
		||||
        } catch (Exception ex) {
 | 
			
		||||
          }
 | 
			
		||||
        catch (Exception ex)
 | 
			
		||||
          {
 | 
			
		||||
            System.err.println(ex.toString());
 | 
			
		||||
        } finally {
 | 
			
		||||
            try {
 | 
			
		||||
          }
 | 
			
		||||
        finally
 | 
			
		||||
          {
 | 
			
		||||
            try
 | 
			
		||||
              {
 | 
			
		||||
                this.closeDatabaseConnection(con);
 | 
			
		||||
                // close the resources 
 | 
			
		||||
                if (updateSupplier != null) {
 | 
			
		||||
                if (updateSupplier != null)
 | 
			
		||||
                  {
 | 
			
		||||
                    updateSupplier.close();
 | 
			
		||||
                }
 | 
			
		||||
                  }
 | 
			
		||||
 | 
			
		||||
            } catch (SQLException sqlee) {
 | 
			
		||||
              }
 | 
			
		||||
            catch (SQLException sqlee)
 | 
			
		||||
              {
 | 
			
		||||
                sqlee.printStackTrace();
 | 
			
		||||
            }
 | 
			
		||||
        }
 | 
			
		||||
              }
 | 
			
		||||
          }
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    public void deleteSupplier()
 | 
			
		||||
    {
 | 
			
		||||
 | 
			
		||||
        
 | 
			
		||||
        Connection con = connection();
 | 
			
		||||
        if (con == null) {
 | 
			
		||||
            result = "cannot connect to database";
 | 
			
		||||
            return;
 | 
			
		||||
        }
 | 
			
		||||
        if (con == null)
 | 
			
		||||
          {
 | 
			
		||||
            result = "cannot connect to database" ;
 | 
			
		||||
            return ;
 | 
			
		||||
          }
 | 
			
		||||
        PreparedStatement ps = null;
 | 
			
		||||
        int rowsAffected = -1;
 | 
			
		||||
 | 
			
		||||
        try {
 | 
			
		||||
        try
 | 
			
		||||
          {
 | 
			
		||||
            String query = "DELETE FROM supplier WHERE snumber=? ";
 | 
			
		||||
            ps = con.prepareStatement(query);
 | 
			
		||||
            ps.setString(1, snumber);
 | 
			
		||||
            rowsAffected = ps.executeUpdate();
 | 
			
		||||
            result = "number of rows affected: " + rowsAffected;
 | 
			
		||||
        } catch (Exception ex) {
 | 
			
		||||
          }
 | 
			
		||||
        catch (Exception ex)
 | 
			
		||||
          {
 | 
			
		||||
            System.err.println(ex.toString());
 | 
			
		||||
        } finally {
 | 
			
		||||
            try {
 | 
			
		||||
          }
 | 
			
		||||
        finally
 | 
			
		||||
          {
 | 
			
		||||
            try
 | 
			
		||||
              {
 | 
			
		||||
                this.closeDatabaseConnection(con);
 | 
			
		||||
                // close the resources 
 | 
			
		||||
                if (ps != null) {
 | 
			
		||||
                if (ps != null)
 | 
			
		||||
                  {
 | 
			
		||||
                    ps.close();
 | 
			
		||||
                }
 | 
			
		||||
                  }
 | 
			
		||||
 | 
			
		||||
            } catch (SQLException sqlee) {
 | 
			
		||||
              }
 | 
			
		||||
            catch (SQLException sqlee)
 | 
			
		||||
              {
 | 
			
		||||
                sqlee.printStackTrace();
 | 
			
		||||
            }
 | 
			
		||||
        }
 | 
			
		||||
              }
 | 
			
		||||
          }
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    public void insertSupplier()
 | 
			
		||||
    {
 | 
			
		||||
        Connection con = connection();
 | 
			
		||||
        if (con == null) {
 | 
			
		||||
            result = "cannot connect to database";
 | 
			
		||||
            return;
 | 
			
		||||
        }
 | 
			
		||||
       Connection con = connection();
 | 
			
		||||
        if (con == null)
 | 
			
		||||
          {
 | 
			
		||||
            result = "cannot connect to database" ;
 | 
			
		||||
            return ;
 | 
			
		||||
          }
 | 
			
		||||
        PreparedStatement updateSupplier = null;
 | 
			
		||||
        try {
 | 
			
		||||
        try
 | 
			
		||||
          {
 | 
			
		||||
            updateSupplier = con.prepareStatement(
 | 
			
		||||
                    "INSERT INTO supplier (snumber, sname, status, birthday, city ) "
 | 
			
		||||
                    + "VALUES ( ?, ?, ? , ? ,? )");
 | 
			
		||||
@@ -329,35 +398,45 @@ public class Suppliers implements Serializable {
 | 
			
		||||
            int updateCount = updateSupplier.executeUpdate();
 | 
			
		||||
 | 
			
		||||
            result = "number of rows affected: " + updateCount;
 | 
			
		||||
        } catch (Exception ex) {
 | 
			
		||||
          }
 | 
			
		||||
        catch (Exception ex)
 | 
			
		||||
          {
 | 
			
		||||
            System.err.println(ex.toString());
 | 
			
		||||
            result = ex.toString();
 | 
			
		||||
        } finally {
 | 
			
		||||
            try {
 | 
			
		||||
          }
 | 
			
		||||
        finally
 | 
			
		||||
          {
 | 
			
		||||
            try
 | 
			
		||||
              {
 | 
			
		||||
                this.closeDatabaseConnection(con);
 | 
			
		||||
                // close the resources 
 | 
			
		||||
                if (updateSupplier != null) {
 | 
			
		||||
                if (updateSupplier != null)
 | 
			
		||||
                  {
 | 
			
		||||
                    updateSupplier.close();
 | 
			
		||||
                }
 | 
			
		||||
                  }
 | 
			
		||||
 | 
			
		||||
            } catch (SQLException e) {
 | 
			
		||||
              }
 | 
			
		||||
            catch (SQLException e)
 | 
			
		||||
              {
 | 
			
		||||
                System.err.println(e.toString());
 | 
			
		||||
                result = e.toString();
 | 
			
		||||
            }
 | 
			
		||||
        }
 | 
			
		||||
              }
 | 
			
		||||
          }
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    private java.sql.Date stringDateToSqlDate(String sDate)
 | 
			
		||||
private java.sql.Date stringDateToSqlDate(String sDate)
 | 
			
		||||
    {
 | 
			
		||||
        java.util.Date date = null;
 | 
			
		||||
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
 | 
			
		||||
        try {
 | 
			
		||||
        try
 | 
			
		||||
          {
 | 
			
		||||
            date = sdf.parse(sDate);
 | 
			
		||||
        } catch (ParseException e) {
 | 
			
		||||
          }
 | 
			
		||||
        catch (ParseException e)
 | 
			
		||||
          {
 | 
			
		||||
            e.printStackTrace();
 | 
			
		||||
        }
 | 
			
		||||
        return new java.sql.Date(date.getTime());
 | 
			
		||||
 | 
			
		||||
          }
 | 
			
		||||
        return new  java.sql.Date( date.getTime() );
 | 
			
		||||
        
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    public String getResult()
 | 
			
		||||
@@ -366,15 +445,21 @@ public class Suppliers implements Serializable {
 | 
			
		||||
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    public void closeDatabaseConnection(Connection con)
 | 
			
		||||
    
 | 
			
		||||
 | 
			
		||||
    public void closeDatabaseConnection( Connection con)
 | 
			
		||||
    {
 | 
			
		||||
        try {
 | 
			
		||||
            if (con != null) {
 | 
			
		||||
        try
 | 
			
		||||
          {
 | 
			
		||||
            if (con != null)
 | 
			
		||||
              {
 | 
			
		||||
                con.close();
 | 
			
		||||
            }
 | 
			
		||||
        } catch (SQLException e) {
 | 
			
		||||
              }
 | 
			
		||||
          }
 | 
			
		||||
        catch (SQLException e)
 | 
			
		||||
          {
 | 
			
		||||
            result = e.toString();
 | 
			
		||||
            e.printStackTrace();
 | 
			
		||||
        }
 | 
			
		||||
          }
 | 
			
		||||
    }
 | 
			
		||||
}
 | 
			
		||||
 
 | 
			
		||||
@@ -1,5 +1,4 @@
 | 
			
		||||
<?xml version="1.0" encoding="UTF-8"?>
 | 
			
		||||
<!DOCTYPE glassfish-web-app PUBLIC "-//GlassFish.org//DTD GlassFish Application Server 3.1 Servlet 3.0//EN" "http://glassfish.org/dtds/glassfish-web-app_3_0-1.dtd">
 | 
			
		||||
<!--
 | 
			
		||||
    Copyright (c) 1997, 2018 Oracle and/or its affiliates. All rights reserved.
 | 
			
		||||
    
 | 
			
		||||
@@ -15,6 +14,7 @@
 | 
			
		||||
 | 
			
		||||
    SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
 | 
			
		||||
-->
 | 
			
		||||
<!DOCTYPE glassfish-web-app PUBLIC "-//GlassFish.org//DTD GlassFish Application Server 3.1 Servlet 3.0//EN" "http://glassfish.org/dtds/glassfish-web-app_3_0-1.dtd">
 | 
			
		||||
<glassfish-web-app error-url="">
 | 
			
		||||
  <class-loader delegate="true"/>
 | 
			
		||||
  <jsp-config>
 | 
			
		||||
 
 | 
			
		||||
		Reference in New Issue
	
	Block a user