优化返回信息显示

src/com/mes/ui/WorkStationPanel.java

@@ -124,7 +124,7 @@ public class WorkStationPanel extends JPanel {
                             JOptionPane.showMessageDialog(WorkStationPanel.this, "获取工件码为空", "提示", JOptionPane.INFORMATION_MESSAGE);
                         }
                     } else {
-                        JOptionPane.showMessageDialog(WorkStationPanel.this, "服务器返回格式错误", "错误", JOptionPane.ERROR_MESSAGE);
+                        JOptionPane.showMessageDialog(WorkStationPanel.this, result.get("message"), "错误", JOptionPane.ERROR_MESSAGE);
                     }
                 } catch (Exception ex) {
                     JOptionPane.showMessageDialog(WorkStationPanel.this, "扫码异常: " + ex.getMessage(), "错误", JOptionPane.ERROR_MESSAGE);