diff --git a/core/backend/src/main/java/io/dataease/plugins/server/CasServer.java b/core/backend/src/main/java/io/dataease/plugins/server/CasServer.java
index d5ea7f35c7..54fb4798c2 100644
--- a/core/backend/src/main/java/io/dataease/plugins/server/CasServer.java
+++ b/core/backend/src/main/java/io/dataease/plugins/server/CasServer.java
@@ -67,7 +67,7 @@ public class CasServer {
                 sysUserEntity = authUserService.getCasUserByName(name);
             }
             if (null == sysUserEntity) {
-                String s = RandomStringUtils.random(6);
+                String s = RandomStringUtils.randomAlphanumeric(6);
                 String email = s + "@xxx.com";
                 sysUserService.validateCasUser(name);
                 sysUserService.saveCASUser(name, email);
diff --git a/sdk/dataease-plugin-common/src/main/java/io/dataease/plugins/common/util/FileUtil.java b/sdk/dataease-plugin-common/src/main/java/io/dataease/plugins/common/util/FileUtil.java
index 8b500919b3..764f038df6 100644
--- a/sdk/dataease-plugin-common/src/main/java/io/dataease/plugins/common/util/FileUtil.java
+++ b/sdk/dataease-plugin-common/src/main/java/io/dataease/plugins/common/util/FileUtil.java
@@ -2,10 +2,7 @@ package io.dataease.plugins.common.util;
 
 import io.dataease.plugins.common.exception.DataEaseException;
 
-import java.io.ByteArrayOutputStream;
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.IOException;
+import java.io.*;
 import java.nio.file.Files;
 import java.nio.file.StandardCopyOption;
 import java.util.Arrays;
@@ -35,6 +32,25 @@ public class FileUtil {
         return bytes;
     }
 
+    public static void writeBytes(File file, byte[] bytes) {
+        FileOutputStream fos = null;
+        try {
+            fos = new FileOutputStream(file);
+            fos.write(bytes);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        } finally {
+            if (fos != null) {
+                try {
+                    fos.close();
+                } catch (IOException e) {
+                    throw new RuntimeException(e);
+                }
+            }
+        }
+
+    }
+
     public static String getSuffix(String fileName) {
         return fileName.substring(fileName.lastIndexOf(".") + 1);
     }
@@ -54,7 +70,7 @@ public class FileUtil {
         return new File(path).exists();
     }
 
-    public static List<String> listFileNames(String dirPath){
+    public static List<String> listFileNames(String dirPath) {
         File file = new File(dirPath);
         if (!file.exists()) return null;
         File[] files = file.listFiles();
diff --git a/sdk/dataease-plugin-common/src/main/java/io/dataease/plugins/common/util/HttpClientUtil.java b/sdk/dataease-plugin-common/src/main/java/io/dataease/plugins/common/util/HttpClientUtil.java
index 226db33dd9..6bdde41934 100755
--- a/sdk/dataease-plugin-common/src/main/java/io/dataease/plugins/common/util/HttpClientUtil.java
+++ b/sdk/dataease-plugin-common/src/main/java/io/dataease/plugins/common/util/HttpClientUtil.java
@@ -17,9 +17,7 @@ import org.apache.http.conn.socket.PlainConnectionSocketFactory;
 import org.apache.http.conn.ssl.NoopHostnameVerifier;
 import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
 import org.apache.http.entity.ContentType;
-import org.apache.http.entity.mime.HttpMultipartMode;
 import org.apache.http.entity.mime.MultipartEntityBuilder;
-import org.apache.http.entity.mime.content.FileBody;
 import org.apache.http.entity.mime.content.StringBody;
 import org.apache.http.impl.client.CloseableHttpClient;
 import org.apache.http.impl.client.HttpClientBuilder;
@@ -219,26 +217,28 @@ public class HttpClientUtil {
 
 
     public static String postFile(String fileServer, File file, Map<String, String> param, HttpClientConfig config) {
-        CloseableHttpClient httpClient = HttpClients.createDefault();
+        CloseableHttpClient httpClient = buildHttpClient(fileServer);
         HttpPost postRequest = new HttpPost(fileServer);
         if (config == null) {
             config = new HttpClientConfig();
         }
+        postRequest.setConfig(config.buildRequestConfig());
         Map<String, String> header = config.getHeader();
+        String fileFlag = param.get("fileFlag");
+        String fileName = param.get("fileName");
+        param.remove("fileFlag");
+        param.remove("fileName");
         if (MapUtils.isNotEmpty(header)) {
             for (String key : header.keySet()) {
                 postRequest.addHeader(key, header.get(key));
             }
         }
+        postRequest.setHeader("Content-Type", "multipart/form-data");
         MultipartEntityBuilder builder = MultipartEntityBuilder.create();
-        builder.setMode(HttpMultipartMode.BROWSER_COMPATIBLE);
-
         builder.setCharset(StandardCharsets.UTF_8);
-        FileBody fileBody = new FileBody(file);
-        builder.addPart(file.getName(), fileBody);
-        if (param != null) {
+        builder.addBinaryBody(StringUtils.isNotBlank(fileFlag) ? fileFlag : "file", file, ContentType.APPLICATION_OCTET_STREAM, StringUtils.isNotBlank(fileName) ? fileName : file.getName());
+        if (MapUtils.isNotEmpty(param)) {
             for (Map.Entry<String, String> entry : param.entrySet()) {
-
                 StringBody stringBody = new StringBody(entry.getValue(), ContentType.TEXT_PLAIN.withCharset("utf-8"));
                 builder.addPart(entry.getKey(), stringBody);
             }
@@ -253,11 +253,13 @@ public class HttpClientUtil {
     }
 
     public static String postFile(String fileServer, byte[] bytes, String fileName, Map<String, String> param, HttpClientConfig config) {
-        CloseableHttpClient httpClient = HttpClients.createDefault();
+        CloseableHttpClient httpClient = buildHttpClient(fileServer);
+
         HttpPost postRequest = new HttpPost(fileServer);
         if (config == null) {
             config = new HttpClientConfig();
         }
+        postRequest.setConfig(config.buildRequestConfig());
         Map<String, String> header = config.getHeader();
         if (MapUtils.isNotEmpty(header)) {
             for (String key : header.keySet()) {
@@ -265,15 +267,12 @@ public class HttpClientUtil {
             }
         }
         MultipartEntityBuilder builder = MultipartEntityBuilder.create();
-        builder.setMode(HttpMultipartMode.BROWSER_COMPATIBLE);
-
         builder.setCharset(StandardCharsets.UTF_8);
-        builder.addBinaryBody(fileName, bytes);
+        builder.addBinaryBody("image", bytes, ContentType.DEFAULT_BINARY, fileName);
 
         if (param != null) {
             for (Map.Entry<String, String> entry : param.entrySet()) {
-                StringBody stringBody = new StringBody(entry.getValue(), ContentType.TEXT_PLAIN.withCharset("utf-8"));
-                builder.addPart(entry.getKey(), stringBody);
+                builder.addTextBody(entry.getKey(), entry.getValue());
             }
         }
         try {