任务详情导出，ftp连接优化

inspect-base/inspect-base-core/src/main/java/com/inspect/base/core/sftp/SftpFactory.java

@@ -68,31 +68,52 @@ public class SftpFactory {
     }
 
     public FTPSClient connect() throws IOException {
-        boolean isImplicit = "true".equals(sftpLoginConfig.getIsImplicit());
-        //boolean isImplicit = Boolean.getBoolean(sftpLoginConfig.getIsImplicit());
-        logger.info(Color.MAGENTA + "[FTP] isImplicit: {}" + Color.END, isImplicit);
-        FTPSClient ftps = new FTPSClient(isImplicit);
-        try {
-            ftps.setControlEncoding("UTF-8");
-            ftps.connect(sftpLoginConfig.getIp(), Integer.parseInt(sftpLoginConfig.getPort()));
-        } catch (Exception e) {
-            logger.error("[FTP] CONN FAIL: {}, CAUSE: {}", JSONObject.toJSONString(sftpLoginConfig), e.getMessage());
+        int maxRetries = 5;
+        int retryCount = 0;
+        long retryDelay = 1000L;
+        while (retryCount < maxRetries) {
+            boolean isImplicit = "true".equals(sftpLoginConfig.getIsImplicit());
+            //boolean isImplicit = Boolean.getBoolean(sftpLoginConfig.getIsImplicit());
+            logger.info(Color.MAGENTA + "[FTP] isImplicit: {}" + Color.END, isImplicit);
+            FTPSClient ftps = new FTPSClient(isImplicit);
             try {
-                Thread.sleep(1000L);
-            } catch (InterruptedException e2) {
+                ftps.setControlEncoding("UTF-8");
+                ftps.connect(sftpLoginConfig.getIp(), Integer.parseInt(sftpLoginConfig.getPort()));
+                boolean login = ftps.login(sftpLoginConfig.getUsername(), sftpLoginConfig.getPassword());
+                if (!login) {
+                    throw new ServiceException("LOGIN TO FTP FAIL!");
+                } else {
+                    return ftps;
+                }
+            } catch (Exception e) {
+                retryCount++;
+                logger.error("[FTP] CONN FAIL: {}, (attempt {}/{}): CAUSE: {}",
+                        JSONObject.toJSONString(sftpLoginConfig), retryCount, maxRetries, e.getMessage());
+
+                // 清理资源
+                if (ftps != null && ftps.isConnected()) {
+                    try {
+                        ftps.disconnect();
+                    } catch (IOException ex) {
+                        logger.debug("[FTP] Error during disconnect", ex);
+                    }
+                }
 
-                ;
+                if (retryCount < maxRetries) {
+                    try {
+                        logger.info("[FTP] Retrying in {} ms", retryDelay);
+                        Thread.sleep(retryDelay);
+                        retryDelay *= 2;
+                    } catch (InterruptedException ie) {
+                        Thread.currentThread().interrupt();
+                        throw new IOException("Interrupted during retry", ie);
+                    }
+                } else {
+                    throw new IOException("Failed to connect after " + maxRetries + " attempts", e);
+                }
             }
-
-            return connect();
-        }
-
-        boolean login = ftps.login(sftpLoginConfig.getUsername(), sftpLoginConfig.getPassword());
-        if (!login) {
-            throw new ServiceException("LOGIN TO FTP FAIL!");
-        } else {
-            return ftps;
         }
+        throw new IOException("Unexpected error in connection process");
     }
 
     public static void main(String[] args) {