引入cpdetector解决文件编码识别问题

server/src/main/java/cn/keking/service/OfficePluginManager.java

@@ -0,0 +1,134 @@
+package cn.keking.service;
+
+import com.sun.star.document.UpdateDocMode;
+import cn.keking.extend.ControlDocumentFormatRegistry;
+import org.apache.commons.lang3.StringUtils;
+import org.artofsolving.jodconverter.OfficeDocumentConverter;
+import org.artofsolving.jodconverter.office.DefaultOfficeManagerConfiguration;
+import org.artofsolving.jodconverter.office.OfficeManager;
+import org.artofsolving.jodconverter.office.OfficeUtils;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.core.Ordered;
+import org.springframework.core.annotation.Order;
+import org.springframework.stereotype.Component;
+
+import javax.annotation.PostConstruct;
+import javax.annotation.PreDestroy;
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.charset.StandardCharsets;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Properties;
+
+/**
+ * 创建文件转换器
+ *
+ * @author yudian-it
+ * @date 2017/11/13
+ */
+@Component
+@Order(Ordered.HIGHEST_PRECEDENCE)
+public class OfficePluginManager {
+
+    private final Logger logger = LoggerFactory.getLogger(OfficePluginManager.class);
+
+    private OfficeManager officeManager;
+
+    @PostConstruct
+    public void initOfficeManager() {
+        new Thread(this::startOfficeManager).start();
+    }
+
+    /**
+     * 启动Office组件进程
+     */
+    private void startOfficeManager(){
+        File officeHome = OfficeUtils.getDefaultOfficeHome();
+        if (officeHome == null) {
+            throw new RuntimeException("找不到office组件，请确认'office.home'配置是否有误");
+        }
+        boolean killOffice = killProcess();
+        if (killOffice) {
+            logger.warn("检测到有正在运行的office进程，已自动结束该进程");
+        }
+        try {
+            DefaultOfficeManagerConfiguration configuration = new DefaultOfficeManagerConfiguration();
+            configuration.setOfficeHome(officeHome);
+            configuration.setPortNumber(8100);
+            // 设置任务执行超时为5分钟
+            configuration.setTaskExecutionTimeout(1000 * 60 * 5L);
+            // 设置任务队列超时为24小时
+            //configuration.setTaskQueueTimeout(1000 * 60 * 60 * 24L);
+            officeManager = configuration.buildOfficeManager();
+            officeManager.start();
+        } catch (Exception e) {
+            logger.error("启动office组件失败，请检查office组件是否可用");
+            throw e;
+        }
+    }
+
+    public OfficeDocumentConverter getDocumentConverter() {
+        OfficeDocumentConverter converter = new OfficeDocumentConverter(officeManager, new ControlDocumentFormatRegistry());
+        converter.setDefaultLoadProperties(getLoadProperties());
+        return converter;
+    }
+
+    private Map<String,?> getLoadProperties() {
+        Map<String,Object> loadProperties = new HashMap<>(10);
+        loadProperties.put("Hidden", true);
+        loadProperties.put("ReadOnly", true);
+        loadProperties.put("UpdateDocMode", UpdateDocMode.QUIET_UPDATE);
+        loadProperties.put("CharacterSet", StandardCharsets.UTF_8.name());
+        return loadProperties;
+    }
+
+    private boolean killProcess() {
+        boolean flag = false;
+        Properties props = System.getProperties();
+        try {
+            if (props.getProperty("os.name").toLowerCase().contains("windows")) {
+                Process p = Runtime.getRuntime().exec("cmd /c tasklist ");
+                ByteArrayOutputStream baos = new ByteArrayOutputStream();
+                InputStream os = p.getInputStream();
+                byte[] b = new byte[256];
+                while (os.read(b) > 0) {
+                    baos.write(b);
+                }
+                String s = baos.toString();
+                if (s.contains("soffice.bin")) {
+                    Runtime.getRuntime().exec("taskkill /im " + "soffice.bin" + " /f");
+                    flag = true;
+                }
+            } else {
+                Process p = Runtime.getRuntime().exec(new String[]{"sh","-c","ps -ef | grep " + "soffice.bin"});
+                ByteArrayOutputStream baos = new ByteArrayOutputStream();
+                InputStream os = p.getInputStream();
+                byte[] b = new byte[256];
+                while (os.read(b) > 0) {
+                    baos.write(b);
+                }
+                String s = baos.toString();
+                if (StringUtils.ordinalIndexOf(s, "soffice.bin", 3) > 0) {
+                    String[] cmd ={"sh","-c","kill -15 `ps -ef|grep " + "soffice.bin" + "|awk 'NR==1{print $2}'`"};
+                    Runtime.getRuntime().exec(cmd);
+                    flag = true;
+                }
+            }
+        } catch (IOException e) {
+            logger.error("检测office进程异常", e);
+        }
+        return flag;
+    }
+
+    @PreDestroy
+    public void destroyOfficeManager(){
+        if (null != officeManager && officeManager.isRunning()) {
+            officeManager.stop();
+        }
+    }
+
+}