智写-文书写作，限制字数

src/main/java/cn/com/poc/law/service/impl/BizAiLegislativeDocumentWritingServiceImpl.java

@@ -159,7 +159,7 @@ public class BizAiLegislativeDocumentWritingServiceImpl extends BaseServiceImpl
         long inputTimestamp = System.currentTimeMillis();
 
         //组装请求参数
-        List<Message> messages = buildMessages(dialoguesId, userId, input, null);
+        List<Message> messages = buildMessages(dialoguesId, userId, input, fileUrl);
         LargeModelResponse largeModelResponse = new LargeModelResponse();
         largeModelResponse.setModel("deepseek-v3");//获取模型);
         largeModelResponse.setMessages(messages.toArray(new Message[0]));
@@ -264,8 +264,13 @@ public class BizAiLegislativeDocumentWritingServiceImpl extends BaseServiceImpl
 
         // 加载对话提示词
         String prompt = documentDialoguePrompt.getConfigSystem();
-        prompt = prompt.replace("${input}", input).replace("${fileContent}", fileContent);
 
+        String inputText = input + fileContent;
+
+        if (inputText.length() > 25000) {
+            inputText = inputText.substring(0, 25000);
+        }
+        prompt = prompt.replace("${input}", inputText);
         // 配置message
         List<Message> messages = new ArrayList<>();
         Message systemMessage = new Message();