diff --git a/fys-admin/src/main/java/com/fuyuanshen/web/enums/InstructType6170.java b/fys-admin/src/main/java/com/fuyuanshen/web/enums/InstructType6170.java new file mode 100644 index 0000000..9f5f0d9 --- /dev/null +++ b/fys-admin/src/main/java/com/fuyuanshen/web/enums/InstructType6170.java @@ -0,0 +1,50 @@ +package com.fuyuanshen.web.enums; + +/** + * @author: 默苍璃 + * @date: 2025-08-0114:14 + */ +public enum InstructType6170 { + + EQUIPMENT_REPORTING(0, "设备启动"), + LIGHT_MODE(1, "灯光模式"), + /** + * 设备信息 + * 单位/姓名/职位 + */ + UNIT_INFO(2, "设备信息"), + BOOT_IMAGE(3, "开机图片"), + LASER_LIGHT(4, "激光灯"), + BRIGHTNESS(5, "亮度调节"), + LOCATION_DATA(11, "定位数据"), + + + UNKNOWN(-1, "未知操作"); + + private final int code; + private final String description; + + InstructType6170(int code, String description) { + this.code = code; + this.description = description; + } + + public int getCode() { + return code; + } + + public String getDescription() { + return description; + } + + public static InstructType6170 fromCode(int code) { + for (InstructType6170 type : values()) { + if (type.getCode() == code) { + return type; + } + } + // throw new IllegalArgumentException("未知的指令类型代码: " + code); + return UNKNOWN; + } + +} diff --git a/fys-admin/src/main/java/com/fuyuanshen/web/handler/mqtt/DeviceReceiverMessageHandler.java b/fys-admin/src/main/java/com/fuyuanshen/web/handler/mqtt/DeviceReceiverMessageHandler.java new file mode 100644 index 0000000..2f31fc3 --- /dev/null +++ b/fys-admin/src/main/java/com/fuyuanshen/web/handler/mqtt/DeviceReceiverMessageHandler.java @@ -0,0 +1,264 @@ +package com.fuyuanshen.web.handler.mqtt; + +import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper; +import com.fasterxml.jackson.databind.JsonNode; +import com.fasterxml.jackson.databind.ObjectMapper; +import com.fuyuanshen.equipment.domain.Device; +import com.fuyuanshen.equipment.domain.DeviceLog; +import com.fuyuanshen.equipment.mapper.DeviceLogMapper; +import com.fuyuanshen.equipment.mapper.DeviceMapper; +import com.fuyuanshen.equipment.utils.map.GetAddressFromLatUtil; +import com.fuyuanshen.equipment.utils.map.LngLonUtil; +import com.fuyuanshen.web.enums.InstructType6170; +import com.fuyuanshen.web.enums.LightModeEnum6170; +import lombok.AllArgsConstructor; +import lombok.Data; +import lombok.extern.slf4j.Slf4j; +import org.springframework.messaging.Message; +import org.springframework.messaging.MessageHandler; +import org.springframework.messaging.MessageHeaders; +import org.springframework.messaging.MessagingException; +import org.springframework.stereotype.Component; + +/** + * 定义监听主题消息的处理器 + * + * @author: 默苍璃 + * @date: 2025-08-0110:19 + */ +@Component +@Data +@AllArgsConstructor +@Slf4j +public class DeviceReceiverMessageHandler implements MessageHandler { + + private final DeviceMapper deviceMapper; + private final DeviceLogMapper deviceLogMapper; + + // 使用Jackson解析JSON + private static final ObjectMapper objectMapper = new ObjectMapper(); + + + /** + * 处理接收的消息 + * + * @param message + * @throws MessagingException + */ + @Override + public void handleMessage(Message message) throws MessagingException { + // System.out.println("接收到的消息：" + message.getPayload()); + MessageHeaders headers = message.getHeaders(); + String receivedTopicName = (String) headers.get("mqtt_receivedTopic"); + System.out.println("消息来自主题：" + receivedTopicName); + + String payload = message.getPayload().toString(); + + if (receivedTopicName != null) { + // 1. 提取设备ID (从主题中获取) + String deviceImei = extractDeviceId(receivedTopicName); + Device device = deviceMapper.selectOne(new QueryWrapper().eq("device_imei", deviceImei)); + if (device == null) { + log.info("不存在的设备IMEI: {}", deviceImei); + } else { + + try { + JsonNode root = objectMapper.readTree(payload); + + DeviceLog record = new DeviceLog(); + // 手动设置租户ID + record.setTenantId(device.getTenantId()); // 从设备信息中获取租户ID + // 设备ID + record.setDeviceId(device.getId()); + // 设备名称 + record.setDeviceName(device.getDeviceName()); + + // 2. 处理instruct消息 + if (root.has("instruct")) { + JsonNode instructNode = root.get("instruct"); + if (instructNode.isArray()) { + boolean b = receivedTopicName.startsWith("B/"); + record = parseInstruct(device, instructNode, b); + // 根据不同主题进行不同处理 + if (receivedTopicName.startsWith("A/")) { + // 处理A主题的消息（设备上传） + record.setDataSource("设备上报"); + } else if (receivedTopicName.startsWith("B/")) { + // 处理B主题的消息 （手动上传） + record.setDataSource("客户端操作"); + } + } + deviceLogMapper.insert(record); + } + + if (root.has("imei")) { + // 设备行为 + record.setDeviceAction(InstructType6170.fromCode(0).getDescription()); + record.setDataSource("设备上报"); + record.setContent("设备启动"); + deviceLogMapper.insert(record); + } + + + // 3. 处理state消息 + // else if (root.has("state")) { + // JsonNode stateNode = root.get("state"); + // if (stateNode.isArray()) { + // StateRecord record = parseState(device, stateNode); + // stateRepo.save(record); + // } + // } + } catch (Exception e) { + log.error("消息解析失败: {}", payload, e); + } + + } + + } + } + + + /** + * 从主题中提取设备ID(IMEI) + * + * @param topic + * @return + */ + private String extractDeviceId(String topic) { + // 处理 A/# 或 B/# 格式的主题，例如 B/861556078765285 或 A/861556078765285 + String[] segments = topic.split("/"); + if (segments.length >= 2) { + // 返回第二个段，即 / 后面的部分 + return segments[1]; + } + // 如果格式不符合预期，返回原主题 + return topic; + } + + + /** + * 解析instruct消息 + * + * @param device + * @param array + * @param b + * @return + */ + private DeviceLog parseInstruct(Device device, JsonNode array, boolean b) { + DeviceLog record = new DeviceLog(); + record.setDeviceName(device.getDeviceName()); + // 设备行为 + record.setDeviceAction(InstructType6170.fromCode(array.get(0).asInt()).getDescription()); + + switch (array.get(0).asInt()) { + case 1: // 灯光模式 + LightModeEnum6170 lightModeEnum6170 = LightModeEnum6170.fromCode(array.get(1).asInt()); + record.setContent(lightModeEnum6170.getDescription()); + break; + + case 2: // 单位/姓名/职位 + byte[] unitBytes = new byte[480]; + for (int i = 1; i <= 480; i++) { + unitBytes[i - 1] = (byte) array.get(i).asInt(); + } + // record.setUnitData(unitBytes); + break; + + case 3: // 开机图片 + // record.setImagePage(array.get(1).asInt()); + byte[] imageBytes = new byte[512]; + for (int i = 2; i <= 513; i++) { + imageBytes[i - 2] = (byte) array.get(i).asInt(); + } + // record.setImageData(imageBytes); + break; + + case 4: // 激光灯 + int anInt = array.get(1).asInt(); + if (anInt == 0) { + record.setContent("关闭激光灯"); + } else if (anInt == 1) { + record.setContent("开启激光灯"); + } else { + record.setContent("未知操作"); + } + break; + + case 5: // 亮度调节 + record.setContent(+array.get(1).asInt() + "%"); + break; + + case 11: // 定位数据 + if (b) { + break; + } + int i1 = array.get(1).asInt(); + int i2 = array.get(2).asInt(); + int i3 = array.get(3).asInt(); + int i4 = array.get(4).asInt(); + + // 优雅的转换方式 Longitude and latitude + double latitude = i1 + i2 / 10.0; + double Longitude = i3 + i4 / 10.0; + // 84 ==》 高德 + double[] doubles = LngLonUtil.gps84_To_Gcj02(latitude, Longitude); + String address = GetAddressFromLatUtil.getAdd(String.valueOf(doubles[1]), String.valueOf(doubles[0])); + record.setContent(address); + break; + } + return record; + } + + + /** + * 解析state消息 + * + * @param device + * @param array + * @return + */ + // private StateRecord parseState(Device device, JsonNode array) { + // StateRecord record = new StateRecord(); + // record.setDevice(device); + // record.setStateType(array.get(0).asInt()); + // + // switch (record.getStateType()) { + // case 1: // 灯光状态 + // record.setLightMode(array.get(1).asInt()); + // record.setBrightness(array.get(2).asInt()); + // break; + // + // case 2: // 设置结果 + // record.setSetResult(array.get(1).asInt() == 1); + // break; + // + // case 3: // 图片更新状态 + // record.setImagePage(array.get(1).asInt()); + // break; + // + // case 4: // 激光灯状态 + // record.setLaserStatus(array.get(1).asInt() == 1); + // break; + // + // case 5: // 亮度状态 + // record.setBrightness(array.get(1).asInt()); + // break; + // + // case 11: // 定位上报 + // record.setLatitude(array.get(1).asDouble()); + // record.setLongitude(array.get(2).asDouble()); + // break; + // + // case 12: // 设备状态 + // record.setMainLightGear(array.get(1).asInt()); + // record.setLaserLightGear(array.get(2).asInt()); + // record.setBattery(array.get(3).asInt()); + // record.setChargeStatus(array.get(4).asInt()); + // record.setDuration(array.get(5).asInt()); + // break; + // } + // return record; + // } + + +} diff --git a/fys-modules/fys-equipment/src/main/java/com/fuyuanshen/equipment/domain/bo/DeviceLogBo.java b/fys-modules/fys-equipment/src/main/java/com/fuyuanshen/equipment/domain/bo/DeviceLogBo.java index 71900d5..2ac1f66 100644 --- a/fys-modules/fys-equipment/src/main/java/com/fuyuanshen/equipment/domain/bo/DeviceLogBo.java +++ b/fys-modules/fys-equipment/src/main/java/com/fuyuanshen/equipment/domain/bo/DeviceLogBo.java @@ -8,6 +8,8 @@ import lombok.Data; import lombok.EqualsAndHashCode; import jakarta.validation.constraints.*; +import java.util.List; + /** * 设备日志业务对象 device_log * @@ -22,9 +24,14 @@ public class DeviceLogBo extends BaseEntity { /** * ID */ - @NotNull(message = "ID不能为空", groups = { EditGroup.class }) + @NotNull(message = "ID不能为空", groups = {EditGroup.class}) private Long id; + /** + * 设备编号 + */ + private List deviceIds; + /** * 设备行为 */ diff --git a/fys-modules/fys-equipment/src/main/java/com/fuyuanshen/equipment/service/impl/DeviceLogServiceImpl.java b/fys-modules/fys-equipment/src/main/java/com/fuyuanshen/equipment/service/impl/DeviceLogServiceImpl.java index 60d46df..16ca6d3 100644 --- a/fys-modules/fys-equipment/src/main/java/com/fuyuanshen/equipment/service/impl/DeviceLogServiceImpl.java +++ b/fys-modules/fys-equipment/src/main/java/com/fuyuanshen/equipment/service/impl/DeviceLogServiceImpl.java @@ -1,11 +1,16 @@ package com.fuyuanshen.equipment.service.impl; +import cn.hutool.core.collection.CollectionUtil; +import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper; import com.fuyuanshen.common.core.utils.MapstructUtils; import com.fuyuanshen.common.mybatis.core.page.TableDataInfo; import com.fuyuanshen.common.mybatis.core.page.PageQuery; import com.baomidou.mybatisplus.extension.plugins.pagination.Page; import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper; import com.baomidou.mybatisplus.core.toolkit.Wrappers; +import com.fuyuanshen.common.satoken.utils.LoginHelper; +import com.fuyuanshen.equipment.domain.DeviceAssignments; +import com.fuyuanshen.equipment.mapper.DeviceAssignmentsMapper; import lombok.RequiredArgsConstructor; import lombok.extern.slf4j.Slf4j; import org.apache.commons.lang3.StringUtils; @@ -19,6 +24,7 @@ import com.fuyuanshen.equipment.service.IDeviceLogService; import java.util.List; import java.util.Map; import java.util.Collection; +import java.util.stream.Collectors; /** * 设备日志Service业务层处理 @@ -33,6 +39,9 @@ public class DeviceLogServiceImpl implements IDeviceLogService { private final DeviceLogMapper baseMapper; + private final DeviceAssignmentsMapper deviceAssignmentsMapper; + + /** * 查询设备日志 * @@ -40,7 +49,7 @@ public class DeviceLogServiceImpl implements IDeviceLogService { * @return 设备日志 */ @Override - public DeviceLogVo queryById(Long id){ + public DeviceLogVo queryById(Long id) { return baseMapper.selectVoById(id); } @@ -53,6 +62,8 @@ public class DeviceLogServiceImpl implements IDeviceLogService { */ @Override public TableDataInfo queryPageList(DeviceLogBo bo, PageQuery pageQuery) { + + LambdaQueryWrapper lqw = buildQueryWrapper(bo); Page result = baseMapper.selectVoPage(pageQuery.build(), lqw); return TableDataInfo.build(result); @@ -71,16 +82,27 @@ public class DeviceLogServiceImpl implements IDeviceLogService { } private LambdaQueryWrapper buildQueryWrapper(DeviceLogBo bo) { + + Long userId = LoginHelper.getUserId(); + List assignments = deviceAssignmentsMapper.selectList(new QueryWrapper().eq("assignee_id", userId)); + List deviceIds = assignments.stream().map(DeviceAssignments::getDeviceId).collect(Collectors.toList()); + if (deviceIds.isEmpty()) { + deviceIds.add(-1L); + } + bo.setDeviceIds(deviceIds); + Map params = bo.getParams(); LambdaQueryWrapper lqw = Wrappers.lambdaQuery(); - lqw.orderByAsc(DeviceLog::getId); - lqw.eq(StringUtils.isNotBlank(bo.getDeviceAction()), DeviceLog::getDeviceAction, bo.getDeviceAction()); + lqw.orderByDesc(DeviceLog::getCreateTime); + lqw.like(StringUtils.isNotBlank(bo.getDeviceAction()), DeviceLog::getDeviceAction, bo.getDeviceAction()); lqw.like(StringUtils.isNotBlank(bo.getDeviceName()), DeviceLog::getDeviceName, bo.getDeviceName()); lqw.eq(StringUtils.isNotBlank(bo.getDataSource()), DeviceLog::getDataSource, bo.getDataSource()); - lqw.eq(StringUtils.isNotBlank(bo.getContent()), DeviceLog::getContent, bo.getContent()); + lqw.like(StringUtils.isNotBlank(bo.getContent()), DeviceLog::getContent, bo.getContent()); + lqw.in(CollectionUtil.isNotEmpty(bo.getDeviceIds()), DeviceLog::getDeviceId, bo.getDeviceIds()); return lqw; } + /** * 新增设备日志 * @@ -114,8 +136,8 @@ public class DeviceLogServiceImpl implements IDeviceLogService { /** * 保存前的数据校验 */ - private void validEntityBeforeSave(DeviceLog entity){ - //TODO 做一些数据校验,如唯一约束 + private void validEntityBeforeSave(DeviceLog entity) { + // TODO 做一些数据校验,如唯一约束 } /** @@ -127,8 +149,8 @@ public class DeviceLogServiceImpl implements IDeviceLogService { */ @Override public Boolean deleteWithValidByIds(Collection ids, Boolean isValid) { - if(isValid){ - //TODO 做一些业务上的校验,判断是否需要校验 + if (isValid) { + // TODO 做一些业务上的校验,判断是否需要校验 } return baseMapper.deleteByIds(ids) > 0; } diff --git a/fys-modules/fys-equipment/src/main/java/com/fuyuanshen/equipment/utils/c/DotMatrixDisplaySimulator.java b/fys-modules/fys-equipment/src/main/java/com/fuyuanshen/equipment/utils/c/DotMatrixDisplaySimulator.java new file mode 100644 index 0000000..3d022fe --- /dev/null +++ b/fys-modules/fys-equipment/src/main/java/com/fuyuanshen/equipment/utils/c/DotMatrixDisplaySimulator.java @@ -0,0 +1,204 @@ +package com.fuyuanshen.equipment.utils.c; + +import javax.swing.*; +import java.awt.*; +import java.awt.event.*; +import java.awt.image.BufferedImage; +import java.util.Arrays; + +public class DotMatrixDisplaySimulator extends JFrame { + + private static final int WIDTH = 160; + private static final int HEIGHT = 80; + private static final int SCALE = 4; // 显示缩放比例 + + private JComboBox fontSizeCombo; + private JComboBox exampleCombo; + private JTextArea textInput; + private DotMatrixPanel displayPanel; + + private final String[] examples = { + "紧急通知：现场危险，请立即撤离！", + "警告：高温区域，禁止入内！", + "系统故障：请立即联系技术人员处理", + "安全提示：请佩戴防护装备进入作业区", + "欢迎使用点阵显示屏模拟系统", + "现场危险，停止救援，紧急撤离至安全区域！" + }; + + public DotMatrixDisplaySimulator() { + super("160x80点阵显示屏模拟器"); + setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); + setSize(800, 600); + setLayout(new BorderLayout()); + + // 创建控制面板 + JPanel controlPanel = new JPanel(new GridLayout(1, 4, 10, 10)); + controlPanel.setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 10)); + + // 字体大小选择 + controlPanel.add(new JLabel("字体大小:")); + fontSizeCombo = new JComboBox<>(new Integer[]{8, 10, 12, 14, 16, 18, 20, 24}); + fontSizeCombo.setSelectedItem(14); + controlPanel.add(fontSizeCombo); + + // 示例选择 + controlPanel.add(new JLabel("示例文本:")); + exampleCombo = new JComboBox<>(examples); + exampleCombo.addActionListener(e -> textInput.setText(examples[exampleCombo.getSelectedIndex()])); + controlPanel.add(exampleCombo); + + // 文本输入 + textInput = new JTextArea(examples[0]); + textInput.setLineWrap(true); + textInput.setWrapStyleWord(true); + JScrollPane textScroll = new JScrollPane(textInput); + textScroll.setBorder(BorderFactory.createTitledBorder("输入文本")); + + // 点阵显示面板 + displayPanel = new DotMatrixPanel(); + + // 添加组件 + add(controlPanel, BorderLayout.NORTH); + add(textScroll, BorderLayout.CENTER); + add(displayPanel, BorderLayout.SOUTH); + + // 添加事件监听器 + fontSizeCombo.addActionListener(e -> displayPanel.repaint()); + textInput.getDocument().addDocumentListener(new javax.swing.event.DocumentListener() { + public void changedUpdate(javax.swing.event.DocumentEvent e) { update(); } + public void removeUpdate(javax.swing.event.DocumentEvent e) { update(); } + public void insertUpdate(javax.swing.event.DocumentEvent e) { update(); } + private void update() { + displayPanel.repaint(); + } + }); + + setLocationRelativeTo(null); + } + + class DotMatrixPanel extends JPanel { + private final int panelWidth = WIDTH * SCALE; + private final int panelHeight = HEIGHT * SCALE; + + public DotMatrixPanel() { + setPreferredSize(new Dimension(panelWidth, panelHeight + 50)); + setBorder(BorderFactory.createTitledBorder("点阵预览 (160x80)")); + } + + @Override + protected void paintComponent(Graphics g) { + super.paintComponent(g); + + // 绘制点阵背景 + g.setColor(Color.WHITE); + g.fillRect(0, 0, panelWidth, panelHeight); + + // 绘制网格 + g.setColor(new Color(240, 240, 240)); + for (int x = 0; x <= WIDTH; x++) { + int xPos = x * SCALE; + g.drawLine(xPos, 0, xPos, panelHeight); + } + for (int y = 0; y <= HEIGHT; y++) { + int yPos = y * SCALE; + g.drawLine(0, yPos, panelWidth, yPos); + } + + // 绘制文本 + String text = textInput.getText(); + int fontSize = (Integer) fontSizeCombo.getSelectedItem(); + Font font = new Font("黑体", Font.PLAIN, fontSize); + + // 创建虚拟点阵图像 + BufferedImage img = new BufferedImage(WIDTH, HEIGHT, BufferedImage.TYPE_BYTE_BINARY); + Graphics2D imgG = img.createGraphics(); + imgG.setColor(Color.WHITE); + imgG.fillRect(0, 0, WIDTH, HEIGHT); + imgG.setColor(Color.BLACK); + imgG.setFont(font); + imgG.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON); + + // 绘制文本到虚拟点阵 + FontMetrics metrics = imgG.getFontMetrics(); + int lineHeight = metrics.getHeight(); + int yPos = metrics.getAscent(); + String[] lines = text.split("\n"); + + int maxLines = HEIGHT / lineHeight; + int actualLines = Math.min(lines.length, maxLines); + int totalChars = 0; + + for (int i = 0; i < actualLines; i++) { + String line = lines[i]; + int lineWidth = metrics.stringWidth(line); + int maxChars = WIDTH / metrics.stringWidth("字"); // 估算每行字数 + + // 截断超过宽度的文本 + if (lineWidth > WIDTH) { + while (metrics.stringWidth(line) > WIDTH) { + line = line.substring(0, line.length() - 1); + } + line += "..."; + } + + // 居中显示文本 + int xPos = (WIDTH - metrics.stringWidth(line)) / 2; + imgG.drawString(line, xPos, yPos); + + totalChars += line.length(); + yPos += lineHeight; + + if (yPos + lineHeight > HEIGHT) break; + } + imgG.dispose(); + + // 绘制到预览面板 + for (int y = 0; y < HEIGHT; y++) { + for (int x = 0; x < WIDTH; x++) { + int rgb = img.getRGB(x, y) & 0xFFFFFF; + if (rgb != 0xFFFFFF) { // 黑色像素 + g.setColor(Color.BLACK); + g.fillRect(x * SCALE, y * SCALE, SCALE, SCALE); + } + } + } + + // 显示统计信息 + g.setColor(Color.BLACK); + g.setFont(new Font("宋体", Font.PLAIN, 12)); + String info = String.format("字体大小: %dpt | 显示行数: %d/%d | 显示字数: %d", + fontSize, actualLines, maxLines, totalChars); + g.drawString(info, 10, panelHeight + 20); + + String capacity = String.format("容量分析: %d×80点阵可显示%d-%d个汉字（%dpt字体）", + WIDTH, + (int)(WIDTH*HEIGHT/(fontSize*fontSize*1.2)), + (int)(WIDTH*HEIGHT/(fontSize*fontSize*0.8)), + fontSize); + g.drawString(capacity, 10, panelHeight + 35); + } + } + + public static void main(String[] args) { + SwingUtilities.invokeLater(() -> { + DotMatrixDisplaySimulator frame = new DotMatrixDisplaySimulator(); + frame.setVisible(true); + + // 显示使用提示 + String message = "
160×80点阵显示屏文字容量分析

" + + "• 使用上方下拉菜单选择字体大小和示例文本
" + + "• 在文本区域输入自定义内容
" + + "• 点阵预览区域实时显示效果

" + + "容量参考：
" + + "8-9pt：约20字/行 × 10行 = 200字
" + + "10-11pt：约16字/行 × 8行 = 128字
" + + "12-13pt：约13字/行 × 6行 = 78字
" + + "14-15pt：约11字/行 × 5行 = 55字
" + + "16-18pt：约9字/行 × 4行 = 36字
" + + "20-24pt：约7字/行 × 3行 = 21字
"; + + JOptionPane.showMessageDialog(frame, message, "使用说明", JOptionPane.INFORMATION_MESSAGE); + }); + } +} \ No newline at end of file diff --git a/fys-modules/fys-equipment/src/main/java/com/fuyuanshen/equipment/utils/c/TextToDotMatrix.java b/fys-modules/fys-equipment/src/main/java/com/fuyuanshen/equipment/utils/c/TextToDotMatrix.java new file mode 100644 index 0000000..d594deb --- /dev/null +++ b/fys-modules/fys-equipment/src/main/java/com/fuyuanshen/equipment/utils/c/TextToDotMatrix.java @@ -0,0 +1,185 @@ +package com.fuyuanshen.equipment.utils.c; + +import javax.imageio.ImageIO; +import java.awt.*; +import java.awt.image.BufferedImage; +import java.io.File; +import java.io.IOException; +import java.util.ArrayList; +import java.util.List; + +public class TextToDotMatrix { + + public static void main(String[] args) { + String text = "现场危险，停止救援，\n紧急撤离至安全区域！"; + int width = 160; // 点阵宽度 + int height = 80; // 点阵高度 + + try { + // 1. 创建点阵图片 + BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_BYTE_BINARY); + Graphics2D g = image.createGraphics(); + + // 设置背景为白色 + g.setColor(Color.WHITE); + g.fillRect(0, 0, width, height); + + // 设置字体并居中显示文本 + g.setColor(Color.BLACK); + g.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON); + + // 自动调整字体大小以适应区域 + Font font = findBestFitFont(text, width, height, g); + g.setFont(font); + + // 计算文本位置并绘制 + drawCenteredText(g, text, width, height); + g.dispose(); + + // 2. 生成二进制数组 + List byteList = new ArrayList<>(); + for (int y = 0; y < height; y++) { + for (int x = 0; x < width; x += 8) { + byte b = 0; + for (int bit = 0; bit < 8; bit++) { + int xPos = x + bit; + if (xPos < width) { + int rgb = image.getRGB(xPos, y) & 0xFFFFFF; + if (rgb != 0xFFFFFF) { // 黑色像素 + b |= (1 << (7 - bit)); + } + } + } + byteList.add(b); + } + } + + // 转换为字节数组 + byte[] dotMatrixData = new byte[byteList.size()]; + for (int i = 0; i < byteList.size(); i++) { + dotMatrixData[i] = byteList.get(i); + } + + // 3. 保存预览图片 + ImageIO.write(image, "png", new File("warning_display.png")); + System.out.println("预览图片已生成: warning_display.png"); + + // 4. 打印点阵数据信息 + System.out.println("\n点阵数据信息:"); + System.out.println("尺寸: " + width + "x" + height + " 像素"); + System.out.println("数据大小: " + dotMatrixData.length + " 字节"); + System.out.println("每行字节数: " + (width / 8)); + System.out.println("总行数: " + height); + + // 5. 打印二进制数组（十六进制格式） + System.out.println("\n点阵数据字节数组 (HEX):"); + System.out.print("byte[] dotMatrixData = {"); + for (int i = 0; i < dotMatrixData.length; i++) { + System.out.printf("0x%02X", dotMatrixData[i] & 0xFF); + if (i < dotMatrixData.length - 1) System.out.print(", "); + if (i % 16 == 15) System.out.println(); + } + System.out.println("};\n"); + + // 6. 打印点阵图预览 + System.out.println("点阵图预览 (缩小版):"); + printTextPreview(image); + + } catch (IOException e) { + e.printStackTrace(); + } + } + + // 自动寻找最佳字体大小 + private static Font findBestFitFont(String text, int width, int height, Graphics2D g) { + int fontSize = 20; // 初始字体大小 + Font bestFont = null; + int bestHeight = 0; + + while (fontSize > 8) { + Font font = new Font("黑体", Font.BOLD, fontSize); + g.setFont(font); + FontMetrics metrics = g.getFontMetrics(); + + // 计算文本所需高度 + String[] lines = text.split("\n"); + int textHeight = metrics.getHeight() * lines.length; + + // 检查是否超出高度 + if (textHeight < height * 0.8) { + bestFont = font; + bestHeight = textHeight; + break; + } + fontSize--; + } + + // 如果没有找到合适字体，使用最小字体 + if (bestFont == null) { + bestFont = new Font("黑体", Font.BOLD, 8); + } + + System.out.println("使用字体: " + bestFont.getSize() + "pt"); + return bestFont; + } + + // 居中绘制文本 + private static void drawCenteredText(Graphics g, String text, int width, int height) { + FontMetrics metrics = g.getFontMetrics(); + String[] lines = text.split("\n"); + + // 计算总文本高度 + int totalHeight = metrics.getHeight() * lines.length; + + // 计算起始Y位置 + int y = (height - totalHeight) / 2 + metrics.getAscent(); + + for (String line : lines) { + // 计算X位置使文本居中 + int x = (width - metrics.stringWidth(line)) / 2; + g.drawString(line, x, y); + y += metrics.getHeight(); + } + } + + // 打印文本预览 + private static void printTextPreview(BufferedImage image) { + int width = image.getWidth(); + int height = image.getHeight(); + + // 缩小预览比例 + int scale = 4; + int previewWidth = width / scale; + int previewHeight = height / scale; + + for (int y = 0; y < previewHeight; y++) { + for (int x = 0; x < previewWidth; x++) { + int pixelCount = 0; + for (int dy = 0; dy < scale; dy++) { + for (int dx = 0; dx < scale; dx++) { + int origX = x * scale + dx; + int origY = y * scale + dy; + if (origX < width && origY < height) { + int rgb = image.getRGB(origX, origY) & 0xFFFFFF; + if (rgb != 0xFFFFFF) { // 黑色像素 + pixelCount++; + } + } + } + } + + // 根据黑色像素密度选择字符 + if (pixelCount > scale * scale * 0.7) { + System.out.print("██"); + } else if (pixelCount > scale * scale * 0.4) { + System.out.print("▓▓"); + } else if (pixelCount > scale * scale * 0.1) { + System.out.print("░░"); + } else { + System.out.print(" "); + } + } + System.out.println(); + } + } +} \ No newline at end of file