修改应用使用，通过配置的应用的appid modelname字段关联

ruoyi-admin/src/main/java/org/ruoyi/controller/KnowledgeController.java

@@ -78,7 +78,6 @@ public class KnowledgeController extends BaseController {
             sb.append("\n####").append(prompt);
         }
         sb.append( (nearestList.size() > 0 ? "\n\n注意：回答问题时，须严格根据我给你的系统上下文内容原文进行回答，请不要自己发挥,回答时保持原来文本的段落层级" : ""));
-        message.setRole(Message.Role.USER.getName());
         message.setContent(sb.toString());
         return sseService.sseChat(chatRequest, request);
     }

ruoyi-common/ruoyi-common-chat/src/main/java/org/ruoyi/common/chat/domain/request/ChatRequest.java

@@ -40,6 +40,16 @@ public class ChatRequest {
     private String kid;
 
     private String userId;
+
+    /**
+     * 1 联网搜索
+     */
+    private int chat_type;
+
+    /**
+     * 应用ID
+     */
+    private String appId;
 //
 
 //

ruoyi-modules/ruoyi-system/src/main/java/org/ruoyi/system/domain/ChatGpts.java

@@ -97,5 +97,10 @@ public class ChatGpts extends BaseEntity {
      */
     private String updateIp;
 
+    /**
+     * 模型名称
+     */
+    private String modelName;
+
 
 }

ruoyi-modules/ruoyi-system/src/main/java/org/ruoyi/system/domain/vo/ChatGptsVo.java

@@ -96,5 +96,11 @@ public class ChatGptsVo implements Serializable {
     @ExcelProperty(value = "更新IP")
     private String updateIp;
 
+    /**
+     * 模型名称
+     */
+    @ExcelProperty(value = "模型名称")
+    private String modelName;
+
 
 }

ruoyi-modules/ruoyi-system/src/main/java/org/ruoyi/system/service/impl/SseServiceImpl.java

@@ -44,6 +44,7 @@ import org.ruoyi.common.satoken.utils.LoginHelper;
 import org.ruoyi.system.domain.SysModel;
 import org.ruoyi.system.domain.bo.ChatMessageBo;
 import org.ruoyi.system.domain.request.translation.TranslationRequest;
+import org.ruoyi.system.domain.vo.ChatGptsVo;
 import org.ruoyi.system.listener.SSEEventSourceListener;
 import org.ruoyi.system.service.*;
 import org.springframework.core.io.InputStreamResource;
@@ -88,6 +89,8 @@ public class SseServiceImpl implements ISseService {
 
     private final ConfigService configService;
 
+    private final IChatGptsService chatGptsService;
+
     static final OkHttpClient HTTP_CLIENT = new OkHttpClient().newBuilder().build();
 
     private static final String requestIdTemplate = "mycompany-%d";
@@ -132,20 +135,22 @@ public class SseServiceImpl implements ISseService {
                 chatMessageBo.setContent(chatString);
 
                 String model = chatRequest.getModel();
-                // 如果是gpts系列模型
-                if (chatRequest.getModel().startsWith("gpt-4-gizmo")) {
-                    model = "gpt-4-gizmo";
-                }
                 SysModel sysModel = sysModelService.selectModelByName(model);
                 if (sysModel == null) {
                     // 如果模型不存在默认使用token扣费方式
                     processByToken(chatRequest.getModel(), chatString, chatMessageBo);
                 } else {
                     openAiStreamClient = chatConfig.createOpenAiStreamClient(sysModel.getApiHost(), sysModel.getApiKey());
-                    // 模型设置默认提示词
-                    if (StringUtils.isNotEmpty(sysModel.getSystemPrompt())) {
-                        Message sysMessage = Message.builder().content(sysModel.getSystemPrompt()).role(Message.Role.SYSTEM).build();
-                        messages.add(sysMessage);
+                    if (StringUtils.isNotEmpty(chatRequest.getAppId())) { // 设置应用的系统角色为描述
+                        ChatGptsVo chatGptsVo = chatGptsService.queryById(Long.valueOf(chatRequest.getAppId()));
+                        Message sysMessage = Message.builder().content(chatGptsVo.getInfo()).role(Message.Role.SYSTEM).build();
+                        messages.add(0,sysMessage);
+                    } else {
+                        // 模型设置默认提示词
+                        if (StringUtils.isNotEmpty(sysModel.getSystemPrompt())) {
+                            Message sysMessage = Message.builder().content(sysModel.getSystemPrompt()).role(Message.Role.SYSTEM).build();
+                            messages.add(0,sysMessage);
+                        }
                     }
                     // 计费类型: 1 token扣费 2 次数扣费
                     if ("2".equals(sysModel.getModelType())) {