新功能点：所有配置项支持从环境变量里读取，方便Docker镜像部署

jodconverter-core/src/main/java/org/artofsolving/jodconverter/office/OfficeUtils.java

@@ -15,6 +15,7 @@ package org.artofsolving.jodconverter.office;
 import java.io.BufferedReader;
 import java.io.File;
 import java.io.FileReader;
+import java.util.Iterator;
 import java.util.Map;
 import java.util.Properties;
 
@@ -26,6 +27,8 @@ import com.sun.star.uno.UnoRuntime;
 public class OfficeUtils {
 
     public static final String SERVICE_DESKTOP = "com.sun.star.frame.Desktop";
+    public static final String OFFICE_HOME_KEY = "office.home";
+    public static final String DEFAULT_OFFICE_HOME_VALUE = "default";
 
     private OfficeUtils() {
         throw new AssertionError("utility class must not be instantiated");
@@ -69,9 +72,11 @@ public class OfficeUtils {
         try {
             BufferedReader bufferedReader = new BufferedReader(new FileReader(customizedConfigPath));
             properties.load(bufferedReader);
+            restorePropertiesFromEnvFormat(properties);
         } catch (Exception e) {}
-        if (properties.getProperty("office.home") != null) {
-            return new File(properties.getProperty("office.home"));
+        String officeHome = properties.getProperty(OFFICE_HOME_KEY);
+        if (officeHome != null && !DEFAULT_OFFICE_HOME_VALUE.equals(officeHome)) {
+            return new File(officeHome);
         }
         if (PlatformUtils.isWindows()) {
             // %ProgramFiles(x86)% on 64-bit machines; %ProgramFiles% on 32-bit ones
@@ -147,4 +152,32 @@ public class OfficeUtils {
         return configFilePath;
     }
 
+    /**
+     * SpringBoot application.properties 支持从环境变量获取值
+     * @param properties
+     */
+    public synchronized static void restorePropertiesFromEnvFormat(Properties properties) {
+        Iterator<Map.Entry<Object, Object>> iterator = properties.entrySet().iterator();
+        while (iterator.hasNext()) {
+            Map.Entry<Object, Object> entry = iterator.next();
+            String key = entry.getKey().toString();
+            String value = entry.getValue().toString();
+            if (value.trim().startsWith("${") && value.trim().endsWith("}")) {
+                int beginIndex = value.indexOf(":");
+                if (beginIndex < 0) {
+                    beginIndex = value.length() - 1;
+                }
+                int endIndex = value.length() - 1;
+                String envKey = value.substring(2, beginIndex);
+                String envValue = System.getenv(envKey);
+                if (envValue == null || "".equals(envValue.trim())) {
+                    value = value.substring(beginIndex + 1, endIndex);
+                } else {
+                    value = envValue;
+                }
+                properties.setProperty(key, value);
+            }
+        }
+    }
+
 }

jodconverter-web/src/main/config/application.properties

 #######################################不可动态配置，需要重启生效#######################################
-server.port = 8012
+server.port = ${KK_SERVER_PORT:8012}
 spring.http.encoding.charset = utf8
 ## Freemarker 配置
 spring.freemarker.template-loader-path = classpath:/web/
@@ -19,37 +19,39 @@ spring.http.multipart.max-file-size=100MB
 
 #文件资源路径（默认为打包根路径下的file目录下）
 #file.dir = D:\\kkFileview\\
+file.dir = ${KK_FILE_DIR:default}
 #openoffice home路径
 #office.home = C:\\Program Files (x86)\\OpenOffice 4
+office.home = ${KK_OFFICE_HOME:default}
 
-#缓存实现类型，不配默认为内嵌RocksDB实现，可配置为redis(type = redis)实现（需要配置spring.redisson.address等参数）和 JDK 内置对象实现（type = jdk）,
-#cache.type = redis
-#redis连接
-#spring.redisson.address = 192.168.1.204:6379
-#spring.redisson.password = xxx
-cache.clean.enabled = true
+#缓存实现类型，不配默认为内嵌RocksDB(type = default)实现，可配置为redis(type = redis)实现（需要配置spring.redisson.address等参数）和 JDK 内置对象实现（type = jdk）,
+cache.type =  ${KK_CACHE_TYPE:default}
+#redis连接，只有当cache.type = redis时才有用
+spring.redisson.address = ${KK_SPRING_REDISSON_ADDRESS:127.0.0.1:6379}
+spring.redisson.password = ${KK_SPRING_REDISSON_PASSWORD:123456}
+#缓存是否自动清理 true 为开启，注释掉或其他值都为关闭
+cache.clean.enabled = ${KK_CACHE_CLEAN_ENABLED:true}
 #缓存自动清理时间，cache.clean.enabled = true时才有用，cron表达式，基于Quartz cron
-cache.clean.cron = 0 0 3 * * ?
+cache.clean.cron = ${KK_CACHE_CLEAN_CRON:0 0 3 * * ?}
 
 #######################################可在运行时动态配置#######################################
 #提供预览服务的地址，默认从请求url读，如果使用nginx等反向代理，需要手动设置
 #base.url = https://file.keking.cn
+base.url = ${KK_BASE_URL:default}
 
 #是否启用缓存
-cache.enabled = true
+cache.enabled = ${KK_CACHE_ENABLED:true}
 
 #文本类型，默认如下，可自定义添加
-#simText = txt,html,xml,properties,md,java,py,c,cpp,sql
+simText = ${KK_SIMTEXT:txt,html,htm,asp,jsp,xml,json,properties,md,gitignore,,java,py,c,cpp,sql,sh,bat,m,bas,prg,cmd}
 #多媒体类型，默认如下，可自定义添加
-#media = mp3,wav,mp4,flv
-#文件转换编码，默认根据操作系统获取
-#converted.file.charset = GBK
+media = ${KK_MEDIA:mp3,wav,mp4,flv}
 #office类型文档(word ppt)样式，默认为图片(image)，可配置为pdf（预览时也有按钮切换）
-#office.preview.type = pdf
+office.preview.type = ${KK_OFFICE_PREVIEW_TYPE:image}
 
 #预览源为FTP时 FTP用户名，可在ftp url后面加参数ftp.username=ftpuser指定，不指定默认用配置的
-ftp.username = ftpuser
+ftp.username = ${KK_FTP_USERNAME:ftpuser}
 #预览源为FTP时 FTP密码，可在ftp url后面加参数ftp.password=123456指定，不指定默认用配置的
-ftp.password = 123456
+ftp.password = ${KK_FTP_PASSWORD:123456}
 #预览源为FTP时, FTP连接默认ControlEncoding(根据FTP服务器操作系统选择，Linux一般为UTF-8，Windows一般为GBK)，可在ftp url后面加参数ftp.control.encoding=UTF-8指定，不指定默认用配置的
-ftp.control.encoding = UTF-8
+ftp.control.encoding = ${KK_FTP_CONTROL_ENCODING:UTF-8}

jodconverter-web/src/main/java/cn/keking/config/ConfigConstants.java

@@ -17,7 +17,6 @@ public class ConfigConstants {
     private static Boolean cacheEnabled;
     private static String[] simText = {};
     private static String[] media = {};
-    private static String convertedFileCharset;
     private static String officePreviewType;
     private static String ftpUsername;
     private static String ftpPassword;
@@ -25,6 +24,8 @@ public class ConfigConstants {
     private static String fileDir = OfficeUtils.getHomePath() + File.separator + "file" + File.separator;
     private static String baseUrl;
 
+    public static final String DEFAULT_FILE_DIR_VALUE = "default";
+
     public static Boolean isCacheEnabled() {
         return cacheEnabled;
     }
@@ -49,14 +50,6 @@ public class ConfigConstants {
         ConfigConstants.media = media;
     }
 
-    public static String getConvertedFileCharset() {
-        return convertedFileCharset;
-    }
-
-    public static void setConvertedFileCharset(String convertedFileCharset) {
-        ConfigConstants.convertedFileCharset = convertedFileCharset;
-    }
-
     public static String getOfficePreviewType() {
         return officePreviewType;
     }
@@ -98,13 +91,12 @@ public class ConfigConstants {
     }
 
     public static void setBaseUrl(String baseUrl) {
-        // 不以'/'结尾的，加上'/'
-        ConfigConstants.baseUrl = baseUrl.concat("/");
+        ConfigConstants.baseUrl = baseUrl;
     }
 
     @Value("${file.dir:default}")
     public void setFileDir(String fileDir) {
-        if (!"default".equals(fileDir)) {
+        if (!DEFAULT_FILE_DIR_VALUE.equals(fileDir.toLowerCase())) {
             if (!fileDir.endsWith(File.separator)) {
                 fileDir = fileDir + File.separator;
             }

jodconverter-web/src/main/java/cn/keking/config/ConfigRefreshComponent.java

@@ -5,7 +5,6 @@ import org.artofsolving.jodconverter.office.OfficeUtils;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.stereotype.Component;
-import org.springframework.util.StringUtils;
 
 import javax.annotation.PostConstruct;
 import java.io.BufferedReader;
@@ -24,14 +23,13 @@ public class ConfigRefreshComponent {
     private static final Logger LOGGER = LoggerFactory.getLogger(ConfigRefreshComponent.class);
 
     public static final String DEFAULT_CACHE_ENABLED = "true";
-    public static final String DEFAULT_TXT_TYPE = "txt,html,xml,properties,md,java,py,c,cpp,sql";
+    public static final String DEFAULT_TXT_TYPE = "txt,html,htm,asp,jsp,xml,json,properties,md,gitignore,,java,py,c,cpp,sql,sh,bat,m,bas,prg,cmd";
     public static final String DEFAULT_MEDIA_TYPE = "mp3,wav,mp4,flv";
-    public static final String DEFAULT_CONVERTER_CHARSET = System.getProperty("sun.jnu.encoding");
+
     public static final String DEFAULT_FTP_USERNAME = null;
     public static final String DEFAULT_FTP_PASSWORD = null;
     public static final String DEFAULT_FTP_CONTROL_ENCODING = "UTF-8";
-    public static final String BASE_URL = null;
-
+    public static final String DEFAULT_BASE_URL = "default";
 
     @PostConstruct
     void refresh() {
@@ -49,7 +47,6 @@ public class ConfigRefreshComponent {
                 Boolean cacheEnabled;
                 String[] textArray;
                 String[] mediaArray;
-                String convertedFileCharset;
                 String officePreviewType;
                 String ftpUsername;
                 String ftpPassword;
@@ -60,28 +57,25 @@ public class ConfigRefreshComponent {
                     FileReader fileReader = new FileReader(configFilePath);
                     BufferedReader bufferedReader = new BufferedReader(fileReader);
                     properties.load(bufferedReader);
+                    OfficeUtils.restorePropertiesFromEnvFormat(properties);
                     cacheEnabled = new Boolean(properties.getProperty("cache.enabled", DEFAULT_CACHE_ENABLED));
                     text = properties.getProperty("simText", DEFAULT_TXT_TYPE);
                     media = properties.getProperty("media", DEFAULT_MEDIA_TYPE);
-                    convertedFileCharset = properties.getProperty("converted.file.charset", DEFAULT_CONVERTER_CHARSET);
                     officePreviewType = properties.getProperty("office.preview.type", OfficeFilePreviewImpl.OFFICE_PREVIEW_TYPE_IMAGE);
                     ftpUsername = properties.getProperty("ftp.username", DEFAULT_FTP_USERNAME);
                     ftpPassword = properties.getProperty("ftp.password", DEFAULT_FTP_PASSWORD);
                     ftpControlEncoding = properties.getProperty("ftp.control.encoding", DEFAULT_FTP_CONTROL_ENCODING);
                     textArray = text.split(",");
                     mediaArray = media.split(",");
-                    baseUlr = properties.getProperty("base.url", null);
+                    baseUlr = properties.getProperty("base.url", DEFAULT_BASE_URL);
                     ConfigConstants.setCacheEnabled(cacheEnabled);
                     ConfigConstants.setSimText(textArray);
                     ConfigConstants.setMedia(mediaArray);
-                    ConfigConstants.setConvertedFileCharset(convertedFileCharset);
                     ConfigConstants.setOfficePreviewType(officePreviewType);
                     ConfigConstants.setFtpUsername(ftpUsername);
                     ConfigConstants.setFtpPassword(ftpPassword);
                     ConfigConstants.setFtpControlEncoding(ftpControlEncoding);
-                    if (baseUlr != null && !StringUtils.isEmpty(baseUlr)) {
-                        ConfigConstants.setBaseUrl(baseUlr);
-                    }
+                    ConfigConstants.setBaseUrl(baseUlr);
                     bufferedReader.close();
                     fileReader.close();
                     Thread.sleep(1000L);

jodconverter-web/src/main/java/cn/keking/filters/ChinesePathFilter.java

 package cn.keking.filters;
 
 import cn.keking.config.ConfigConstants;
-import org.springframework.util.StringUtils;
+import cn.keking.config.ConfigRefreshComponent;
 
 import javax.servlet.*;
 import javax.servlet.http.HttpServletRequest;
@@ -23,8 +23,12 @@ public class ChinesePathFilter implements Filter {
         request.setCharacterEncoding("UTF-8");
         response.setCharacterEncoding("UTF-8");
         String baseUrl;
-        if (ConfigConstants.getBaseUrl() != null) {
-            baseUrl = ConfigConstants.getBaseUrl();
+        String baseUrlTmp = ConfigConstants.getBaseUrl();
+        if (baseUrlTmp != null && !ConfigRefreshComponent.DEFAULT_BASE_URL.equals(baseUrlTmp.toLowerCase())) {
+            if (!baseUrlTmp.endsWith("/")) {
+                baseUrlTmp = baseUrlTmp.concat("/");
+            }
+            baseUrl = baseUrlTmp;
         } else {
             StringBuilder pathBuilder = new StringBuilder();
             pathBuilder.append(request.getScheme()).append("://").append(request.getServerName()).append(":")

jodconverter-web/src/main/java/cn/keking/utils/FileUtils.java

@@ -25,6 +25,9 @@ import java.util.Map;
  */
 @Component
 public class FileUtils {
+
+    public static final String DEFAULT_CONVERTER_CHARSET = System.getProperty("sun.jnu.encoding");
+
     Logger log= LoggerFactory.getLogger(getClass());
 
     @Autowired
@@ -233,9 +236,8 @@ public class FileUtils {
      */
     public void doActionConvertedFile(String outFilePath) {
         StringBuffer sb = new StringBuffer();
-        String charset = ConfigConstants.getConvertedFileCharset();
         try (InputStream inputStream = new FileInputStream(outFilePath);
-            BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream, charset))){
+            BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream, DEFAULT_CONVERTER_CHARSET))){
             String line;
             while(null != (line = reader.readLine())){
                 if (line.contains("charset=gb2312")) {