String queryString = "from User as model where model." + propertyName + "= ?"; 等于号后面加的变量你要加单引号括起来 比如String queryString = "from User as model where model." + propertyName + "= '+?+'"; ps:在sql中有变量要加单引号 或在前面加冒号
不行在试试这种比如String queryString = "from User as model where model." + propertyName + "= ' "+?+" ' ";
等于号后面加的变量你要加单引号括起来
比如String queryString = "from User as model where model." + propertyName + "= '+?+'";
ps:在sql中有变量要加单引号 或在前面加冒号