使用java代码中的照片显示iReport

Question

我希望ro显示来自java的报告，其中包含来自数据库的照片blob，但它会返回此异常

  

在位置找不到字节数据：java.io.ByteArrayInputStream@6b9ea0a7

但如果我删除照片，报告会正常显示，或者我更改了图片的属性“On error to blank” 这是java代码

public void genere(){
    try{
        String xmlFile = "D:\\1-LICENCE\\Logiciel\\MAGAZINE\\magazine\\mag.jrxml";
        String jasperFile = "D:\\1-LICENCE\\Logiciel\\MAGAZINE\\magazine\\magazine.jasper";
        String pdfFile = "D:\\1-LICENCE\\Logiciel\\MAGAZINE\\magazine\\magazine.pdf";

        JasperDesign jasperDesign = JRXmlLoader
                .load(xmlFile);
        String sql = "SELECT "
                + "article.n_article AS article_n_article,article.titre AS article_titre,"
                + "article.article AS article_article,article.image AS article_image,"
                + "article.code_domaine_domaine AS article_code_domaine_domaine,"
                + "article.num_mag_magazine AS article_num_mag_magazine,"
                + "article.matricule_auteur AS article_matricule_auteur,"
                + "auteur.matricule AS auteur_matricule,auteur.nom AS auteur_nom,"
                + "domaine.code_domaine AS domaine_code_domaine,domaine.nom_domaine AS domaine_nom_domaine,"
                + "magazine.num_mag AS magazine_num_mag,magazine.date_mag AS magazine_date_mag"
                + " FROM article "
                + "INNER JOIN auteur ON article.matricule_auteur=auteur.matricule "
                + "INNER JOIN domaine ON article.code_domaine_domaine=domaine.code_domaine "
                + "INNER JOIN magazine ON article.num_mag_magazine=magazine.num_mag WHERE num_mag_magazine='"
                + cmbMag.getSelectedItem().toString()+"'";
        JRDesignQuery newQuery = new JRDesignQuery();
        newQuery.setText(sql);
        jasperDesign.setQuery(newQuery);
        JasperReport report = JasperCompileManager
                .compileReport(jasperDesign);
        JasperPrint print = JasperFillManager.fillReport(report, null, cnx);
        JasperViewer.viewReport(print,false);

        //JasperExportManager.exportReportToPdfFile(print, pdfFile);
    }catch(Exception e){
        Logger.getLogger(Generator.class.getName()).log(Level.SEVERE, null, e);
    }

}