ligne automatique ajout d'ID dans datatables (jQuery)

Question

Voici le code PHP donné

<?php 

    $aColumns = array('engine', 'browser', 'platform', 'version', 'grade'); 

    $sTable = "ajax"; 
    $gaSql['user']  = ""; 
    $gaSql['password'] = ""; 
    $gaSql['db']   = ""; 
    $gaSql['server']  = "localhost"; 

    include($_SERVER['DOCUMENT_ROOT']."/datatables/mysql.php"); 
    $gaSql['link'] = mysql_pconnect($gaSql['server'], $gaSql['user'], $gaSql['password'] ) or 
     die('Could not open connection to server'); 

    mysql_select_db($gaSql['db'], $gaSql['link']) or 
     die('Could not select database '. $gaSql['db']); 

    $sLimit = ""; 
    if (isset($_GET['iDisplayStart']) && $_GET['iDisplayLength'] != '-1') 
    { 
     $sLimit = "LIMIT ".mysql_real_escape_string($_GET['iDisplayStart']).", ". 
      mysql_real_escape_string($_GET['iDisplayLength']); 
    } 

    $sOrder = ""; 
    if (isset($_GET['iSortCol_0'])) 
    { 
     $sOrder = "ORDER BY "; 
     for ($i=0 ; $i<intval($_GET['iSortingCols']) ; $i++) 
     { 
      if ($_GET[ 'bSortable_'.intval($_GET['iSortCol_'.$i]) ] == "true") 
      { 
       $sOrder .= $aColumns[ intval($_GET['iSortCol_'.$i]) ]." 
        ".mysql_real_escape_string($_GET['sSortDir_'.$i]) .", "; 
      } 
     } 

     $sOrder = substr_replace($sOrder, "", -2); 
     if ($sOrder == "ORDER BY") 
     { 
      $sOrder = ""; 
     } 
    } 

    $sWhere = ""; 
    if (isset($_GET['sSearch']) && $_GET['sSearch'] != "") 
    { 
     $sWhere = "WHERE ("; 
     for ($i=0 ; $i<count($aColumns) ; $i++) 
     { 
      $sWhere .= $aColumns[$i]." LIKE '%".mysql_real_escape_string($_GET['sSearch'])."%' OR "; 
     } 
     $sWhere = substr_replace($sWhere, "", -3); 
     $sWhere .= ')'; 
    } 

    /* Individual column filtering */ 
    for ($i=0 ; $i<count($aColumns) ; $i++) 
    { 
     if (isset($_GET['bSearchable_'.$i]) && $_GET['bSearchable_'.$i] == "true" && $_GET['sSearch_'.$i] != '') 
     { 
      if ($sWhere == "") 
      { 
       $sWhere = "WHERE "; 
      } 
      else 
      { 
       $sWhere .= " AND "; 
      } 
      $sWhere .= $aColumns[$i]." LIKE '%".mysql_real_escape_string($_GET['sSearch_'.$i])."%' "; 
     } 
    } 
    $sQuery = " 
     SELECT SQL_CALC_FOUND_ROWS id, ".str_replace(" , ", " ", implode(", ", $aColumns))." 
     FROM $sTable 
     $sWhere 
     $sOrder 
     $sLimit 
    "; 
    $rResult = mysql_query($sQuery, $gaSql['link']) or die(mysql_error()); 

    $sQuery = " 
     SELECT FOUND_ROWS() 
    "; 
    $rResultFilterTotal = mysql_query($sQuery, $gaSql['link']) or die(mysql_error()); 
    $aResultFilterTotal = mysql_fetch_array($rResultFilterTotal); 
    $iFilteredTotal = $aResultFilterTotal[0]; 

    /* Total data set length */ 
    $sQuery = " 
     SELECT COUNT(".$sIndexColumn.") 
     FROM $sTable 
    "; 
    $rResultTotal = mysql_query($sQuery, $gaSql['link']) or die(mysql_error()); 
    $aResultTotal = mysql_fetch_array($rResultTotal); 
    $iTotal = $aResultTotal[0]; 

    $output = array(
     "sEcho" => intval($_GET['sEcho']), 
     "iTotalRecords" => $iTotal, 
     "iTotalDisplayRecords" => $iFilteredTotal, 
     "aaData" => array() 
    ); 

    while ($aRow = mysql_fetch_array($rResult)) 
    { 
     $row = array(); 

     // Add the row ID and class to the object 
     $row['DT_RowId'] = 'row_'.$aRow['id']; 
     $row['DT_RowClass'] = 'grade'.$aRow['grade']; 

     for ($i=0 ; $i<count($aColumns) ; $i++) 
     { 
      if ($aColumns[$i] == "version") 
      { 
       $row[] = ($aRow[ $aColumns[$i] ]=="0") ? '-' : $aRow[ $aColumns[$i] ]; 
      } 
      else if ($aColumns[$i] != ' ') 
      { 
       $row[] = $aRow[ $aColumns[$i] ]; 
      } 
     } 
     $output['aaData'][] = $row; 
    } 

    echo json_encode($output); 
?> 

Je dois développer un programme en Java comme code PHP (je suis incapable de comprendre le code PHP), Ceci est mon code java (Partiel).

public class DTSerializedObject implements java.io.Serializable 
    { 
     public int iTotalRecords; 
     public int iTotalDisplayRecords; 
     public ArrayList<Object> aaData; 
    } 

dans une fonction

ArrayList<Object> jsonarray = new ArrayList<Object>(); 
    DTSerializedObject dts = new DTSerializedObject(); 
dts.iTotalRecords = dts.iTotalDisplayRecords = 30; 
       String category=null; 
       while(rs.next()) 
       { 
        category="Normal"; 
        ArrayList<Object> ja = new ArrayList<Object>(); 
        int topicno=rs.getInt("topicno"); 
        ja.add(topicno); 
        ja.add(rs.getString("filename")); 
        ja.add(rs.getString("letterno")); 
        ja.add(rs.getString("date")); 
        if((rs.getString("category")).equals("2")) 
         category="Urgent"; 
        ja.add("<center>"+category+"</center>"); 
        ja.add(rs.getString("office")); 
        ja.add(rs.getString("subject")+"...."); 
        ja.add("<center><a class='anc' href=\"/Spandana2/specifiedTopicDetailsAndReplies.do?topicno="+topicno+"&purpose=view&jsessionid="+java.util.UUID.randomUUID().toString().replace("-","").toUpperCase()+"\">View</a></center>"); 
        jsonarray.add(ja); 
       } 
       dts.aaData = jsonarray; 

Comment ajouter DT_RowId option DT_RowClass à mon code java. Quel est le format de sortie JSON attendu pour le code PHP ci-dessus?

Merci à l'avance

Answer 1

caisse un objet comme comme celui-ci

class Bean{ 
     public String col1; 
     public String col2; 
     public String DT_RowClass; 
} 

tout en obtenant les données de db créé un objet (Bean) et affecté les valeurs que les propriétés de l'objet pour chaque rangée .

ArrayList al = new ArrayList();  
while(rs.next){ 
     Bean b = new Bean(); 
     b.col1(rs.getString(1)); 
     b.col2(rs.getString(2)); 
     if(rs.getString(3)) 
       b.DT_RowClass = "class1"; 
     else 
       b.DT_RowClass = "class2"; 
     al.add(b); 
    } 

a créé une classe qui représente le format JSON nécessaire pour afficher les données en page. créer l'objet (obj) de cette classe et les valeurs affectées appropriées pour iTotalRecords & & iTotalDisplayRecords aaData = al;

public class DTSerializedObject implements java.io.Serializable 
    { 
     public int iTotalRecords; 
     public int iTotalDisplayRecords; 
     public ArrayList<Object> aaData; 
    } 

Enfin, sérialisez cet objet à l'aide de flexjson.

String result = new flexjson.JSONSerializer().exclude("class").serialize(obj); 
    response.setContentType("application/json"); 
    response.setHeader("Cache-Control", "no-store"); 
    response.getWriter().print(result);