优化

src/com/mes/ui/DataUtil.java

@@ -354,10 +354,14 @@ public class DataUtil {
                 return null;
             }
             JSONObject jsonResult = JSONObject.parseObject(result);
-            if (jsonResult != null && jsonResult.containsKey("steelSn")) {
-                String steelSn = jsonResult.getString("steelSn");
-                System.out.println("[查询钢印码] steelSn=" + steelSn);
-                return steelSn;
+            if (jsonResult != null && "true".equalsIgnoreCase(jsonResult.getString("result"))) {
+                // 从 data.steelSn 读取
+                JSONObject data = jsonResult.getJSONObject("data");
+                if (data != null && data.containsKey("steelSn")) {
+                    String steelSn = data.getString("steelSn");
+                    System.out.println("[查询钢印码] steelSn=" + steelSn);
+                    return steelSn;
+                }
             }
             return null;
         } catch (Exception e) {

src/com/mes/ui/MesClient.java

@@ -681,6 +681,19 @@ public class MesClient extends JFrame {
         });
         settingMenu.add(printerSettingMenu);
 
+        // 测试打印菜单
+        JMenuItem testPrintMenu = new JMenuItem("测试打印");
+        testPrintMenu.setIcon(new ImageIcon(MesClient.class.getResource("/bg/menu_setting.png")));
+        testPrintMenu.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 20));
+        testPrintMenu.addMouseListener(new MouseAdapter() {
+            @Override
+            public void mousePressed(MouseEvent e) {
+                super.mouseClicked(e);
+                showTestPrintDialog();
+            }
+        });
+        settingMenu.add(testPrintMenu);
+
         contentPane = new JPanel();
         contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
         setContentPane(contentPane);
@@ -1497,4 +1510,173 @@ public class MesClient extends JFrame {
             log.info("异步任务执行完毕");
         });
     }
+
+    /**
+     * 显示测试打印对话框
+     */
+    private void showTestPrintDialog() {
+        JDialog dialog = new JDialog(this, "测试打印", true);
+        dialog.setSize(450, 280);
+        dialog.setLocationRelativeTo(this);
+
+        JPanel panel = new JPanel();
+        panel.setLayout(new BoxLayout(panel, BoxLayout.Y_AXIS));
+        panel.setBorder(new EmptyBorder(20, 20, 20, 20));
+
+        // 输入框
+        JPanel inputPanel = new JPanel(new FlowLayout(FlowLayout.LEFT));
+        JLabel label = new JLabel("客户码(二维码):");
+        label.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 16));
+        JTextField snField = new JTextField(22);
+        snField.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 16));
+        snField.setPreferredSize(new Dimension(250, 35));
+        inputPanel.add(label);
+        inputPanel.add(snField);
+        panel.add(inputPanel);
+
+        panel.add(Box.createVerticalStrut(15));
+
+        // 结果显示
+        JLabel resultLabel = new JLabel(" ");
+        resultLabel.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 14));
+        resultLabel.setForeground(Color.BLUE);
+        panel.add(resultLabel);
+
+        panel.add(Box.createVerticalStrut(25));
+
+        // 按钮面板
+        JPanel buttonPanel = new JPanel(new FlowLayout(FlowLayout.CENTER, 15, 0));
+
+        // 查询按钮
+        JButton queryBtn = new JButton("查询钢印码");
+        queryBtn.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 16));
+
+        // 预览按钮（初始禁用）
+        JButton previewBtn = new JButton("预览效果");
+        previewBtn.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 16));
+        previewBtn.setEnabled(false);
+
+        // 打印按钮（初始禁用）
+        JButton printBtn = new JButton("打印");
+        printBtn.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 16));
+        printBtn.setEnabled(false);
+
+        JButton closeBtn = new JButton("关闭");
+        closeBtn.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 16));
+        closeBtn.addActionListener(e -> dialog.dispose());
+
+        // 用于保存查询到的数据
+        final String[] queriedData = new String[2]; // [0]=customerSn, [1]=steelSn
+
+        // 查询按钮逻辑
+        queryBtn.addActionListener(e -> {
+            String customerSn = snField.getText().trim();
+            if (customerSn.isEmpty()) {
+                JOptionPane.showMessageDialog(dialog, "请输入客户码", "提示", JOptionPane.WARNING_MESSAGE);
+                return;
+            }
+
+            queryBtn.setEnabled(false);
+            previewBtn.setEnabled(false);
+            printBtn.setEnabled(false);
+            resultLabel.setText("正在查询钢印码...");
+            resultLabel.setForeground(Color.BLUE);
+
+            new Thread(() -> {
+                try {
+                    String steelSn = DataUtil.getSteelSn(customerSn);
+
+                    javax.swing.SwingUtilities.invokeLater(() -> {
+                        if (steelSn != null && !steelSn.isEmpty()) {
+                            queriedData[0] = customerSn;
+                            queriedData[1] = steelSn;
+                            resultLabel.setText("查询成功！钢印码: " + steelSn);
+                            resultLabel.setForeground(new Color(0, 150, 0));
+                            previewBtn.setEnabled(true);
+                            printBtn.setEnabled(true);
+                        } else {
+                            resultLabel.setText("未找到该客户码对应的钢印码");
+                            resultLabel.setForeground(Color.RED);
+                        }
+                        queryBtn.setEnabled(true);
+                    });
+                } catch (Exception ex) {
+                    javax.swing.SwingUtilities.invokeLater(() -> {
+                        resultLabel.setText("查询失败: " + ex.getMessage());
+                        resultLabel.setForeground(Color.RED);
+                        queryBtn.setEnabled(true);
+                    });
+                }
+            }).start();
+        });
+
+        // 预览按钮逻辑
+        previewBtn.addActionListener(e -> {
+            if (queriedData[0] == null || queriedData[1] == null) {
+                JOptionPane.showMessageDialog(dialog, "请先查询钢印码", "提示", JOptionPane.WARNING_MESSAGE);
+                return;
+            }
+
+            previewBtn.setEnabled(false);
+            resultLabel.setText("正在生成预览 PDF...");
+            resultLabel.setForeground(Color.BLUE);
+
+            new Thread(() -> {
+                try {
+                    com.mes.print.model.FlowCardData previewData = new com.mes.print.model.FlowCardData();
+                    previewData.setSn(queriedData[0]);
+                    previewData.setSteelSn(queriedData[1]);
+                    com.mes.print.Printer.previewFlowCard(previewData);
+
+                    javax.swing.SwingUtilities.invokeLater(() -> {
+                        resultLabel.setText("预览已打开（PDF 文件已用默认程序打开）");
+                        resultLabel.setForeground(new Color(0, 150, 0));
+                        previewBtn.setEnabled(true);
+                    });
+                } catch (Exception ex) {
+                    javax.swing.SwingUtilities.invokeLater(() -> {
+                        resultLabel.setText("预览失败: " + ex.getMessage());
+                        resultLabel.setForeground(Color.RED);
+                        previewBtn.setEnabled(true);
+                        ex.printStackTrace();
+                    });
+                }
+            }).start();
+        });
+
+        // 打印按钮逻辑
+        printBtn.addActionListener(e -> {
+            if (queriedData[0] == null || queriedData[1] == null) {
+                JOptionPane.showMessageDialog(dialog, "请先查询钢印码", "提示", JOptionPane.WARNING_MESSAGE);
+                return;
+            }
+
+            printBtn.setEnabled(false);
+            resultLabel.setText("正在打印...");
+            resultLabel.setForeground(Color.BLUE);
+
+            new Thread(() -> {
+                boolean success = com.mes.print.PrintHelper.printFlowCard(queriedData[0], queriedData[1]);
+                javax.swing.SwingUtilities.invokeLater(() -> {
+                    if (success) {
+                        resultLabel.setText("打印成功！");
+                        resultLabel.setForeground(new Color(0, 150, 0));
+                    } else {
+                        resultLabel.setText("打印失败，请检查打印机");
+                        resultLabel.setForeground(Color.RED);
+                    }
+                    printBtn.setEnabled(true);
+                });
+            }).start();
+        });
+
+        buttonPanel.add(queryBtn);
+        buttonPanel.add(previewBtn);
+        buttonPanel.add(printBtn);
+        buttonPanel.add(closeBtn);
+        panel.add(buttonPanel);
+
+        dialog.add(panel);
+        dialog.setVisible(true);
+    }
 }

src/com/mes/ui/PlcUtil.java

@@ -25,6 +25,9 @@ public class PlcUtil {
             new WeldPoint("R4", 136.2, 138, 140, 144, 148, 152)
     };
 
+    // 缓存上一次的参数值，用于检测变化
+    private static String lastParamValues = null;
+
     public static void getParamDyDl(S7PLC s7PLC) {
         if (MesClient.tjFlaga == 2 || MesClient.tjFlagb == 2) {
             List<String> values = readWeldParams(s7PLC);
@@ -32,13 +35,20 @@ public class PlcUtil {
             values.add("time=" + recordTime);
             MesClient.hjparams.add(String.join("|", values));
             refreshParamText(values);
-            System.out.println("cmt:" + String.join("|", values));
+
+            // 只在参数变化时打印（排除 time 字段）
+            String currentParams = String.join("|", values.subList(0, values.size() - 1));
+            if (!currentParams.equals(lastParamValues)) {
+                System.out.println("cmt:" + String.join("|", values));
+                lastParamValues = currentParams;
+            }
 
             if (MesClient.hjparams.size() == 60) {
                 saveCurrentParams();
             }
         } else if (MesClient.hjparams.size() > 0) {
             saveCurrentParams();
+            lastParamValues = null; // 重置缓存
         }
     }