1

frontend/src/components/VariableInput/index.tsx

@@ -0,0 +1,256 @@
+import React, { useState, useRef, useMemo, useEffect } from 'react';
+import { Command, CommandEmpty, CommandGroup, CommandItem, CommandList } from '@/components/ui/command';
+import { Input } from '@/components/ui/input';
+import { Textarea } from '@/components/ui/textarea';
+import type { VariableInputProps } from './types';
+import { detectTrigger, insertVariable, filterVariables } from './utils';
+import { collectNodeVariables, groupVariablesByNode } from '@/utils/workflow/collectNodeVariables';
+
+/**
+ * 高亮渲染 ${} 变量
+ */
+const highlightVariables = (text: string): React.ReactNode[] => {
+    const regex = /\$\{([^}]+)\}/g;
+    const parts: React.ReactNode[] = [];
+    let lastIndex = 0;
+    let match;
+
+    while ((match = regex.exec(text)) !== null) {
+        // 添加变量前的文本
+        if (match.index > lastIndex) {
+            parts.push(text.substring(lastIndex, match.index));
+        }
+        
+        // 添加高亮的变量
+        parts.push(
+            <span 
+                key={match.index} 
+                className="inline-block px-1.5 py-0.5 bg-blue-100 dark:bg-blue-900/30 text-blue-700 dark:text-blue-300 rounded font-mono text-sm border border-blue-200 dark:border-blue-800"
+            >
+                ${`{${match[1]}}`}
+            </span>
+        );
+        
+        lastIndex = match.index + match[0].length;
+    }
+    
+    // 添加剩余文本
+    if (lastIndex < text.length) {
+        parts.push(text.substring(lastIndex));
+    }
+    
+    return parts.length > 0 ? parts : [text];
+};
+
+/**
+ * 变量输入组件
+ * 支持在输入 ${ 时自动提示可用变量
+ */
+const VariableInput: React.FC<VariableInputProps> = ({
+    value = '',
+    onChange,
+    allNodes,
+    allEdges,
+    currentNodeId,
+    variant = 'input',
+    placeholder,
+    disabled = false,
+    rows = 3,
+}) => {
+    const [showSuggestions, setShowSuggestions] = useState(false);
+    const [triggerInfo, setTriggerInfo] = useState({ shouldShow: false, startPos: -1, searchText: '' });
+    const inputRef = useRef<HTMLInputElement | HTMLTextAreaElement>(null);
+    const containerRef = useRef<HTMLDivElement>(null);
+    
+    // 点击外部关闭建议框
+    useEffect(() => {
+        if (!showSuggestions) return;
+        
+        const handleClickOutside = (event: MouseEvent) => {
+            if (containerRef.current && !containerRef.current.contains(event.target as Node)) {
+                setShowSuggestions(false);
+            }
+        };
+        
+        document.addEventListener('mousedown', handleClickOutside);
+        return () => document.removeEventListener('mousedown', handleClickOutside);
+    }, [showSuggestions]);
+    
+    // 收集可用变量
+    const allVariables = useMemo(() => {
+        return collectNodeVariables(currentNodeId, allNodes, allEdges);
+    }, [currentNodeId, allNodes, allEdges]);
+    
+    // 根据搜索文本过滤变量
+    const filteredVariables = useMemo(() => {
+        return filterVariables(allVariables, triggerInfo.searchText);
+    }, [allVariables, triggerInfo.searchText]);
+    
+    // 按节点分组
+    const groupedVariables = useMemo(() => {
+        return groupVariablesByNode(filteredVariables);
+    }, [filteredVariables]);
+    
+    // 处理输入变化
+    const handleChange = (e: React.ChangeEvent<HTMLInputElement | HTMLTextAreaElement>) => {
+        const newValue = e.target.value;
+        const cursorPos = e.target.selectionStart || 0;
+        
+        onChange(newValue);
+        
+        // 检测是否应该触发变量建议
+        const trigger = detectTrigger(newValue, cursorPos);
+        setTriggerInfo(trigger);
+        setShowSuggestions(trigger.shouldShow && !disabled);
+    };
+    
+    // 处理键盘事件
+    const handleKeyDown = (e: React.KeyboardEvent<HTMLInputElement | HTMLTextAreaElement>) => {
+        // Esc 键关闭建议框
+        if (e.key === 'Escape' && showSuggestions) {
+            setShowSuggestions(false);
+            e.preventDefault();
+        }
+    };
+    
+    // 插入变量
+    const handleSelectVariable = (nodeName: string, fieldName: string) => {
+        console.log('🎯 handleSelectVariable 被调用:', { nodeName, fieldName, value, triggerInfo });
+        
+        if (!inputRef.current) {
+            console.error('❌ inputRef.current 不存在');
+            return;
+        }
+
+        const cursorPos = inputRef.current.selectionStart || 0;
+        console.log('📍 当前光标位置:', cursorPos);
+
+        // 使用工具函数插入变量
+        const { newText, newCursorPos } = insertVariable(
+            value,
+            cursorPos,
+            triggerInfo.startPos,
+            nodeName,
+            fieldName
+        );
+        
+        console.log('✅ 插入结果:', { newText, newCursorPos });
+
+        // 更新值
+        onChange(newText);
+
+        // 关闭建议框
+        setShowSuggestions(false);
+
+        // 恢复焦点并设置光标位置
+        setTimeout(() => {
+            if (inputRef.current) {
+                inputRef.current.focus();
+                inputRef.current.setSelectionRange(newCursorPos, newCursorPos);
+                console.log('✅ 焦点已恢复，光标已设置');
+            }
+        }, 0);
+    };
+    
+    // 渲染输入框
+    const renderInput = () => {
+        const commonProps = {
+            ref: inputRef as any,
+            value,
+            onChange: handleChange,
+            onKeyDown: handleKeyDown,
+            placeholder,
+            disabled,
+        };
+        
+        if (variant === 'input') {
+            return <Input {...commonProps} />;
+        }
+        
+        return <Textarea {...commonProps} rows={rows} />;
+    };
+    
+    // 渲染变量提示
+    const renderSuggestions = () => {
+        if (allVariables.length === 0) {
+            return (
+                <div className="p-4 text-center text-sm text-muted-foreground">
+                    当前没有可用变量（没有前序节点或前序节点无输出）
+                </div>
+            );
+        }
+        
+        if (filteredVariables.length === 0) {
+            return (
+                <div className="p-4 text-center text-sm text-muted-foreground">
+                    未找到匹配的变量
+                </div>
+            );
+        }
+        
+        return (
+            <div className="max-h-80 overflow-y-auto">
+                {Array.from(groupedVariables.entries()).map(([nodeName, variables]) => (
+                    <div key={nodeName} className="py-2">
+                        <div className="px-3 py-1 text-xs font-semibold text-muted-foreground">
+                            📦 {nodeName}
+                        </div>
+                        <div className="space-y-0.5">
+                            {variables.map((variable) => (
+                                <div
+                                    key={`${variable.nodeId}.${variable.fieldName}`}
+                                    className="flex items-center justify-between px-3 py-2 cursor-pointer hover:bg-accent rounded-sm transition-colors"
+                                    onClick={() => {
+                                        console.log('点击变量:', variable.nodeName, variable.fieldName);
+                                        handleSelectVariable(variable.nodeName, variable.fieldName);
+                                    }}
+                                >
+                                    <span className="font-mono text-sm">{variable.fieldName}</span>
+                                    <span className="ml-auto text-xs text-muted-foreground">{variable.fieldType}</span>
+                                </div>
+                            ))}
+                        </div>
+                    </div>
+                ))}
+            </div>
+        );
+    };
+    
+    // 检测是否有变量需要高亮
+    const hasVariables = value && /\$\{[^}]+\}/.test(value);
+    
+    return (
+        <div ref={containerRef} className="relative space-y-2">
+            {/* 输入框 */}
+            {renderInput()}
+            
+            {/* 变量高亮预览 */}
+            {hasVariables && !showSuggestions && (
+                <div className="p-2 bg-muted/30 rounded-md border border-border text-sm">
+                    <div className="text-xs text-muted-foreground mb-1">变量预览：</div>
+                    <div className="break-words leading-relaxed">
+                        {highlightVariables(value)}
+                    </div>
+                </div>
+            )}
+            
+            {/* 变量提示弹窗 - 绝对定位 */}
+            {showSuggestions && (
+                <div 
+                    className="absolute top-full left-0 w-full mt-2 z-50"
+                >
+                    <div className="w-full max-w-[500px] bg-popover text-popover-foreground rounded-md border shadow-lg">
+                        {renderSuggestions()}
+                        <div className="px-3 py-2 border-t text-xs text-muted-foreground bg-muted/30">
+                            💡 输入 <code className="px-1 py-0.5 bg-background rounded">${'{'}</code> 触发变量提示，
+                            按 <kbd className="px-1 py-0.5 bg-background rounded border">Esc</kbd> 关闭
+                        </div>
+                    </div>
+                </div>
+            )}
+        </div>
+    );
+};
+
+export default VariableInput;
+

frontend/src/components/VariableInput/types.ts

@@ -0,0 +1,48 @@
+import type { FlowNode, FlowEdge } from '@/pages/Workflow/Design/types';
+
+/**
+ * 变量输入组件的 Props
+ */
+export interface VariableInputProps {
+    /** 输入值（显示名称格式）*/
+    value: string;
+    
+    /** 值变化回调 */
+    onChange: (value: string) => void;
+    
+    /** 所有节点（用于收集变量）*/
+    allNodes: FlowNode[];
+    
+    /** 所有连接边（用于确定前序节点）*/
+    allEdges: FlowEdge[];
+    
+    /** 当前节点ID（用于过滤前序节点）*/
+    currentNodeId: string;
+    
+    /** 渲染类型 */
+    variant?: 'input' | 'textarea';
+    
+    /** 占位符 */
+    placeholder?: string;
+    
+    /** 是否禁用 */
+    disabled?: boolean;
+    
+    /** Textarea 行数 */
+    rows?: number;
+}
+
+/**
+ * 触发信息
+ */
+export interface TriggerInfo {
+    /** 是否应该显示变量提示 */
+    shouldShow: boolean;
+    
+    /** ${ 的起始位置 */
+    startPos: number;
+    
+    /** 搜索文本（${ 之后的文本）*/
+    searchText: string;
+}
+

frontend/src/components/VariableInput/utils.ts

@@ -0,0 +1,95 @@
+import type { TriggerInfo } from './types';
+import type { NodeVariable } from '@/utils/workflow/collectNodeVariables';
+
+/**
+ * 检测是否应该触发变量建议
+ * 
+ * @param text 完整文本
+ * @param cursorPos 光标位置
+ * @returns 触发信息
+ */
+export const detectTrigger = (text: string, cursorPos: number): TriggerInfo => {
+    // 获取光标前的文本
+    const beforeCursor = text.substring(0, cursorPos);
+    
+    // 找到最后一个 ${
+    const lastOpenIndex = beforeCursor.lastIndexOf('${');
+    
+    // 如果没有找到 ${，或者找到的位置在很早之前（超过100个字符），不触发
+    if (lastOpenIndex === -1 || (cursorPos - lastOpenIndex) > 100) {
+        return { shouldShow: false, startPos: -1, searchText: '' };
+    }
+    
+    // 获取 ${ 之后到光标的文本
+    const textAfterOpen = beforeCursor.substring(lastOpenIndex + 2);
+    
+    // 如果这段文本中已经有 }，说明表达式已经闭合，不触发
+    if (textAfterOpen.includes('}')) {
+        return { shouldShow: false, startPos: -1, searchText: '' };
+    }
+    
+    // 返回触发信息
+    return {
+        shouldShow: true,
+        startPos: lastOpenIndex,
+        searchText: textAfterOpen.trim(),
+    };
+};
+
+/**
+ * 插入变量到文本中
+ * 
+ * @param originalText 原始文本
+ * @param cursorPos 光标位置
+ * @param triggerStartPos ${ 的起始位置
+ * @param nodeName 节点名称
+ * @param fieldName 字段名
+ * @returns 新的文本和光标位置
+ */
+export const insertVariable = (
+    originalText: string,
+    cursorPos: number,
+    triggerStartPos: number,
+    nodeName: string,
+    fieldName: string
+): { newText: string; newCursorPos: number } => {
+    // ${ 之前的文本
+    const before = originalText.substring(0, triggerStartPos);
+    
+    // 光标之后的文本
+    const after = originalText.substring(cursorPos);
+    
+    // 构建新文本：before + ${nodeName.fieldName} + after
+    const variableText = `\${${nodeName}.${fieldName}}`;
+    const newText = `${before}${variableText}${after}`;
+    
+    // 计算新的光标位置（在 } 之后）
+    const newCursorPos = before.length + variableText.length;
+    
+    return { newText, newCursorPos };
+};
+
+/**
+ * 过滤变量列表
+ * 
+ * @param variables 所有变量
+ * @param searchText 搜索文本
+ * @returns 过滤后的变量列表
+ */
+export const filterVariables = (variables: NodeVariable[], searchText: string): NodeVariable[] => {
+    if (!searchText) {
+        return variables;
+    }
+    
+    const lowerSearch = searchText.toLowerCase();
+    
+    return variables.filter(v => {
+        // 匹配节点名称或字段名
+        const matchesNodeName = v.nodeName?.toLowerCase().includes(lowerSearch);
+        const matchesFieldName = v.fieldName?.toLowerCase().includes(lowerSearch);
+        const matchesFullText = v.fullText?.toLowerCase().includes(lowerSearch);
+        
+        return matchesNodeName || matchesFieldName || matchesFullText;
+    });
+};
+

frontend/src/pages/Workflow/Design/components/EdgeConfigModal.tsx

@@ -6,14 +6,17 @@ import { Dialog, DialogContent, DialogDescription, DialogFooter, DialogHeader, D
 import { Button } from '@/components/ui/button';
 import { Form, FormControl, FormDescription, FormField, FormItem, FormLabel, FormMessage } from '@/components/ui/form';
 import { Input } from '@/components/ui/input';
-import { Textarea } from '@/components/ui/textarea';
 import { Label } from '@/components/ui/label';
 import { useToast } from '@/components/ui/use-toast';
-import type { FlowEdge } from '../types';
+import type { FlowEdge, FlowNode } from '../types';
+import { convertToUUID, convertToDisplayName } from '@/utils/workflow/variableConversion';
+import VariableInput from '@/components/VariableInput';
 
 interface EdgeConfigModalProps {
     visible: boolean;
     edge: FlowEdge | null;
+    allNodes: FlowNode[];
+    allEdges: FlowEdge[];
     onOk: (edgeId: string, condition: EdgeCondition) => void;
     onCancel: () => void;
 }
@@ -53,6 +56,8 @@ type EdgeConditionFormValues = z.infer<typeof edgeConditionSchema>;
 const EdgeConfigModal: React.FC<EdgeConfigModalProps> = ({
     visible,
     edge,
+    allNodes,
+    allEdges,
     onOk,
     onCancel
 }) => {
@@ -72,22 +77,36 @@ const EdgeConfigModal: React.FC<EdgeConfigModalProps> = ({
     useEffect(() => {
         if (visible && edge) {
             const condition = edge.data?.condition;
+            
+            // 转换 expression 中的 UUID 为显示名称
+            const displayExpression = condition?.expression 
+                ? convertToDisplayName(condition.expression, allNodes)
+                : '';
+            
             const values = {
                 type: (condition?.type || 'EXPRESSION') as 'EXPRESSION' | 'DEFAULT',
-                expression: condition?.expression || '',
+                expression: displayExpression,
                 priority: condition?.priority || 10,
             };
             form.reset(values);
             setConditionType(values.type);
         }
-    }, [visible, edge, form]);
+        // 只在 visible 或 edge.id 改变时重置表单
+        // allNodes 改变不应该触发重置（用户正在编辑时）
+        // eslint-disable-next-line react-hooks/exhaustive-deps
+    }, [visible, edge?.id]);
 
     const handleSubmit = (values: EdgeConditionFormValues) => {
         if (!edge) return;
         
+        // 转换 expression 中的显示名称为 UUID
+        const uuidExpression = values.expression 
+            ? convertToUUID(values.expression, allNodes)
+            : '';
+        
         // 检查表达式是否包含变量引用
-        if (values.type === 'EXPRESSION' && values.expression) {
-                const hasVariable = /\$\{[\w.]+\}/.test(values.expression);
+        if (values.type === 'EXPRESSION' && uuidExpression) {
+                const hasVariable = /\$\{[\w.-]+\}/.test(uuidExpression);
                 if (!hasVariable) {
                 toast({
                     title: '提示',
@@ -96,7 +115,11 @@ const EdgeConfigModal: React.FC<EdgeConfigModalProps> = ({
                 }
             }
             
-            onOk(edge.id, values);
+            // 提交 UUID 格式的数据
+            onOk(edge.id, {
+                ...values,
+                expression: uuidExpression
+            });
         handleClose();
     };
 
@@ -173,14 +196,19 @@ const EdgeConfigModal: React.FC<EdgeConfigModalProps> = ({
                                     <FormItem>
                                         <FormLabel>条件表达式</FormLabel>
                                         <FormControl>
-                                            <Textarea
-                                    placeholder="请输入条件表达式，如：${amount} > 1000"
+                                            <VariableInput
+                                                value={field.value || ''}
+                                                onChange={field.onChange}
+                                                allNodes={allNodes}
+                                                allEdges={allEdges}
+                                                currentNodeId={edge?.source || ''}
+                                                variant="textarea"
+                                                placeholder="请输入条件表达式，如：${Jenkins构建.buildStatus} == 'SUCCESS'"
                                                 rows={4}
-                                                {...field}
                                             />
                                         </FormControl>
                                         <FormDescription>
-                                            支持使用 {'${变量名}'} 引用流程变量，例如：{'${amount} > 1000'}
+                                            支持使用 {'${节点名称.字段名}'} 引用前序节点的输出变量，输入 ${'{'} 触发变量提示
                                         </FormDescription>
                                         <FormMessage />
                                     </FormItem>

frontend/src/pages/Workflow/Design/components/NodeConfigModal.tsx

@@ -10,15 +10,19 @@ import { Input } from '@/components/ui/input';
 import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from '@/components/ui/select';
 import { Textarea } from '@/components/ui/textarea';
 import { useToast } from '@/components/ui/use-toast';
-import type { FlowNode, FlowNodeData } from '../types';
+import type { FlowNode, FlowNodeData, FlowEdge } from '../types';
 import type { WorkflowNodeDefinition, JSONSchema } from '../nodes/types';
 import { isConfigurableNode } from '../nodes/types';
 import { convertJsonSchemaToZod, extractDataSourceTypes } from '../utils/schemaConverter';
 import { loadDataSource, DataSourceType, type DataSourceOption } from '../utils/dataSourceLoader';
+import { convertObjectToUUID, convertObjectToDisplayName } from '@/utils/workflow/variableConversion';
+import VariableInput from '@/components/VariableInput';
 
 interface NodeConfigModalProps {
     visible: boolean;
     node: FlowNode | null;
+    allNodes: FlowNode[];
+    allEdges: FlowEdge[];
     onCancel: () => void;
     onOk: (nodeId: string, updatedData: Partial<FlowNodeData>) => void;
 }
@@ -26,6 +30,8 @@ interface NodeConfigModalProps {
 const NodeConfigModal: React.FC<NodeConfigModalProps> = ({
     visible,
     node,
+    allNodes,
+    allEdges,
     onCancel,
     onOk
 }) => {
@@ -116,14 +122,27 @@ const NodeConfigModal: React.FC<NodeConfigModalProps> = ({
                 nodeCode: nodeDefinition.nodeCode,
                 description: nodeDefinition.description || ''
             };
-            configForm.reset({ ...defaultConfig, ...(nodeData.configs || {}) });
             
-            // 设置输入映射默认值
+            // 转换 UUID 格式为显示名称格式
+            const displayConfigs = convertObjectToDisplayName(
+                { ...defaultConfig, ...(nodeData.configs || {}) },
+                allNodes
+            );
+            configForm.reset(displayConfigs);
+            
+            // 设置输入映射默认值（也需要转换）
             if (isConfigurableNode(nodeDefinition)) {
-                inputForm.reset(nodeData.inputMapping || {});
+                const displayInputMapping = convertObjectToDisplayName(
+                    nodeData.inputMapping || {},
+                    allNodes
+                );
+                inputForm.reset(displayInputMapping);
             }
         }
-    }, [visible, node, nodeDefinition, configForm, inputForm]);
+        // 只在 visible 或 node.id 改变时重置表单
+        // allNodes 改变不应该触发重置（用户正在编辑时）
+        // eslint-disable-next-line react-hooks/exhaustive-deps
+    }, [visible, node?.id]);
 
     // ✅ 保存配置
     const handleSave = () => {
@@ -139,11 +158,15 @@ const NodeConfigModal: React.FC<NodeConfigModalProps> = ({
                     inputData = inputForm.getValues();
                 }
 
+                // 转换显示名称格式为 UUID 格式
+                const uuidConfigs = convertObjectToUUID(configData as Record<string, any>, allNodes);
+                const uuidInputMapping = convertObjectToUUID(inputData as Record<string, any>, allNodes);
+
                 // 构建更新数据
             const updatedData: Partial<FlowNodeData> = {
                     label: (configData as any).nodeName || nodeDefinition.nodeName,
-                    configs: configData as Record<string, any>,
-                    inputMapping: inputData,
+                    configs: uuidConfigs,
+                    inputMapping: uuidInputMapping,
                     outputs: isConfigurableNode(nodeDefinition) ? nodeDefinition.outputs || [] : []
             };
 
@@ -244,7 +267,14 @@ const NodeConfigModal: React.FC<NodeConfigModalProps> = ({
 
         // 根据类型渲染
             switch (prop.type) {
-                case 'string':
+                case 'string': {
+                    // 黑名单字段：不使用变量输入
+                    const blacklist = ['nodeName', 'nodeCode', 'description'];
+                    const isBlacklisted = blacklist.includes(key);
+                    const isPassword = prop.format === 'password';
+                    
+                    // 密码字段或黑名单字段：使用普通输入
+                    if (isPassword || isBlacklisted) {
                         if (prop.format === 'textarea' || key.includes('description')) {
                             return (
                                 <Textarea
@@ -258,11 +288,31 @@ const NodeConfigModal: React.FC<NodeConfigModalProps> = ({
                         return (
                             <Input
                                 {...field}
-                        type={prop.format === 'password' ? 'password' : 'text'}
+                                type={isPassword ? 'password' : 'text'}
                                 disabled={loading}
                                 placeholder={prop.description || `请输入${prop.title || ''}`}
                             />
                         );
+                    }
+                    
+                    // 其他字符串字段：使用 VariableInput
+                    const isTextarea = prop.format === 'textarea' || 
+                                     ['content', 'body', 'expression', 'script'].includes(key);
+                    
+                    return (
+                        <VariableInput
+                            value={field.value || ''}
+                            onChange={field.onChange}
+                            allNodes={allNodes}
+                            allEdges={allEdges}
+                            currentNodeId={node?.id || ''}
+                            variant={isTextarea ? 'textarea' : 'input'}
+                            placeholder={prop.description || `请输入${prop.title || ''}`}
+                            disabled={loading}
+                            rows={3}
+                        />
+                    );
+                }
             
                 case 'number':
                 case 'integer':
@@ -299,7 +349,7 @@ const NodeConfigModal: React.FC<NodeConfigModalProps> = ({
                     />
                 );
         }
-    }, [dataSourceCache, loadingDataSources, loading]);
+    }, [dataSourceCache, loadingDataSources, loading, node, allNodes, allEdges]);
 
     // ✅ 渲染表单字段
     const renderFormFields = useCallback((

frontend/src/pages/Workflow/Design/index.tsx

@@ -525,6 +525,8 @@ const WorkflowDesignInner: React.FC = () => {
             <NodeConfigModal
                     visible={configModalVisible}
                 node={configNode}
+                allNodes={getNodes() as FlowNode[]}
+                allEdges={getEdges() as FlowEdge[]}
                 onCancel={handleCloseConfigModal}
                     onOk={handleNodeConfigUpdate}
                 />
@@ -533,6 +535,8 @@ const WorkflowDesignInner: React.FC = () => {
             <EdgeConfigModal
                 visible={edgeConfigModalVisible}
                 edge={configEdge}
+                allNodes={getNodes() as FlowNode[]}
+                allEdges={getEdges() as FlowEdge[]}
                 onOk={handleEdgeConditionUpdate}
                 onCancel={handleCloseEdgeConfigModal}
             />

frontend/src/utils/workflow/collectNodeVariables.ts

@@ -0,0 +1,120 @@
+import type { FlowNode, FlowEdge } from '@/pages/Workflow/Design/types';
+import { isConfigurableNode } from '@/pages/Workflow/Design/nodes/types';
+
+/**
+ * 节点变量定义
+ */
+export interface NodeVariable {
+    nodeId: string;           // 节点UUID
+    nodeName: string;         // 节点显示名称
+    fieldName: string;        // 字段名
+    fieldType: string;        // 字段类型
+    displayText: string;      // 界面显示格式: ${节点名称.字段名}
+    fullText: string;         // 完整文本格式: 节点名称.字段名（用于搜索）
+}
+
+/**
+ * 获取当前节点的所有前序节点（通过DFS反向遍历）
+ * 
+ * @param currentNodeId 当前节点ID
+ * @param allNodes 所有节点列表
+ * @param allEdges 所有连接边列表
+ * @returns 所有前序节点（不包括START节点）
+ */
+export const getAllPrecedingNodes = (
+    currentNodeId: string,
+    allNodes: FlowNode[],
+    allEdges: FlowEdge[]
+): FlowNode[] => {
+    const precedingNodeIds = new Set<string>();
+    const visited = new Set<string>();
+    
+    // DFS 反向遍历
+    const dfs = (nodeId: string) => {
+        if (visited.has(nodeId)) return;
+        visited.add(nodeId);
+        
+        // 找到所有指向当前节点的边
+        const incomingEdges = allEdges.filter(e => e.target === nodeId);
+        
+        incomingEdges.forEach(edge => {
+            precedingNodeIds.add(edge.source);
+            dfs(edge.source); // 递归向上遍历
+        });
+    };
+    
+    dfs(currentNodeId);
+    
+    // 返回节点对象，排除START节点（它没有输出）
+    return allNodes.filter(node => 
+        precedingNodeIds.has(node.id) && 
+        node.data?.nodeType !== 'START_EVENT'
+    );
+};
+
+/**
+ * 收集指定节点的所有可用变量（来自前序节点的输出）
+ * 
+ * @param currentNodeId 当前节点ID
+ * @param allNodes 所有节点列表
+ * @param allEdges 所有连接边列表
+ * @returns 变量列表
+ */
+export const collectNodeVariables = (
+    currentNodeId: string,
+    allNodes: FlowNode[],
+    allEdges: FlowEdge[]
+): NodeVariable[] => {
+    const variables: NodeVariable[] = [];
+    
+    // 获取所有前序节点
+    const precedingNodes = getAllPrecedingNodes(currentNodeId, allNodes, allEdges);
+    
+    // 遍历前序节点，提取输出字段
+    precedingNodes.forEach(node => {
+        const nodeDefinition = node.data?.nodeDefinition;
+        
+        // 检查节点是否有输出定义
+        if (!nodeDefinition || !isConfigurableNode(nodeDefinition) || !nodeDefinition.outputs) {
+            return;
+        }
+        
+        // 获取节点显示名称（优先使用用户自定义的label）
+        const nodeName = node.data.label || nodeDefinition.nodeName || 'Unknown';
+        
+        // 为每个输出字段创建变量
+        nodeDefinition.outputs.forEach(output => {
+            variables.push({
+                nodeId: node.id,
+                nodeName: nodeName,
+                fieldName: output.name,
+                fieldType: output.type,
+                displayText: `\${${nodeName}.${output.name}}`,
+                fullText: `${nodeName}.${output.name}`,
+            });
+        });
+    });
+    
+    return variables;
+};
+
+/**
+ * 按节点分组变量
+ * 
+ * @param variables 变量列表
+ * @returns 分组后的变量 Map<节点名称, 变量列表>
+ */
+export const groupVariablesByNode = (variables: NodeVariable[]): Map<string, NodeVariable[]> => {
+    const groups = new Map<string, NodeVariable[]>();
+    
+    variables.forEach(variable => {
+        const key = variable.nodeName;
+        if (!groups.has(key)) {
+            groups.set(key, []);
+        }
+        groups.get(key)!.push(variable);
+    });
+    
+    return groups;
+};
+

frontend/src/utils/workflow/variableConversion.ts

@@ -0,0 +1,156 @@
+import type { FlowNode } from '@/pages/Workflow/Design/types';
+
+/**
+ * 变量表达式的正则模式
+ * 匹配 ${xxx.yyy} 格式
+ * xxx: 节点名称或UUID
+ * yyy: 字段名
+ */
+const VARIABLE_PATTERN = /\$\{([^.}]+)\.([^}]+)\}/g;
+
+/**
+ * 将显示名称格式转换为UUID格式
+ * ${节点名称.字段名} → ${节点UUID.字段名}
+ * 
+ * @param displayText 包含显示名称的文本
+ * @param allNodes 所有节点列表（用于查找UUID）
+ * @returns 转换后的UUID格式文本
+ * 
+ * @example
+ * convertToUUID("构建${Jenkins构建.buildStatus}完成", allNodes)
+ * // 返回: "构建${uuid-123.buildStatus}完成"
+ */
+export const convertToUUID = (
+    displayText: string,
+    allNodes: FlowNode[]
+): string => {
+    if (!displayText || typeof displayText !== 'string') {
+        return displayText;
+    }
+    
+    return displayText.replace(VARIABLE_PATTERN, (match, nodeNameOrId, fieldName) => {
+        // 尝试通过名称查找节点
+        const nodeByName = allNodes.find(n => {
+            const nodeName = n.data?.label || n.data?.nodeDefinition?.nodeName;
+            return nodeName === nodeNameOrId;
+        });
+        
+        if (nodeByName) {
+            // 找到了，替换为UUID
+            return `\${${nodeByName.id}.${fieldName}}`;
+        }
+        
+        // 可能已经是UUID格式，或者节点已被删除
+        // 保持原样
+        return match;
+    });
+};
+
+/**
+ * 将UUID格式转换为显示名称格式
+ * ${节点UUID.字段名} → ${节点名称.字段名}
+ * 
+ * @param uuidText 包含UUID的文本
+ * @param allNodes 所有节点列表（用于查找显示名称）
+ * @returns 转换后的显示名称格式文本
+ * 
+ * @example
+ * convertToDisplayName("构建${uuid-123.buildStatus}完成", allNodes)
+ * // 返回: "构建${Jenkins构建.buildStatus}完成"
+ */
+export const convertToDisplayName = (
+    uuidText: string,
+    allNodes: FlowNode[]
+): string => {
+    if (!uuidText || typeof uuidText !== 'string') {
+        return uuidText;
+    }
+    
+    return uuidText.replace(VARIABLE_PATTERN, (match, nodeIdOrName, fieldName) => {
+        // 尝试通过UUID查找节点
+        const nodeById = allNodes.find(n => n.id === nodeIdOrName);
+        
+        if (nodeById) {
+            // 找到了，替换为显示名称
+            const nodeName = nodeById.data?.label || nodeById.data?.nodeDefinition?.nodeName || nodeIdOrName;
+            return `\${${nodeName}.${fieldName}}`;
+        }
+        
+        // 可能已经是显示名称格式，或者节点已被删除
+        // 保持原样
+        return match;
+    });
+};
+
+/**
+ * 转换对象中的所有字符串值（从显示名称到UUID）
+ * 递归处理嵌套对象和数组
+ * 
+ * @param obj 要转换的对象
+ * @param allNodes 所有节点列表
+ * @returns 转换后的对象
+ */
+export const convertObjectToUUID = <T extends Record<string, any>>(
+    obj: T,
+    allNodes: FlowNode[]
+): T => {
+    if (!obj || typeof obj !== 'object') {
+        return obj;
+    }
+    
+    const result: any = Array.isArray(obj) ? [] : {};
+    
+    for (const key in obj) {
+        const value = obj[key];
+        
+        if (typeof value === 'string') {
+            // 字符串类型：进行转换
+            result[key] = convertToUUID(value, allNodes);
+        } else if (value && typeof value === 'object') {
+            // 对象或数组：递归转换
+            result[key] = convertObjectToUUID(value, allNodes);
+        } else {
+            // 其他类型：保持原样
+            result[key] = value;
+        }
+    }
+    
+    return result as T;
+};
+
+/**
+ * 转换对象中的所有字符串值（从UUID到显示名称）
+ * 递归处理嵌套对象和数组
+ * 
+ * @param obj 要转换的对象
+ * @param allNodes 所有节点列表
+ * @returns 转换后的对象
+ */
+export const convertObjectToDisplayName = <T extends Record<string, any>>(
+    obj: T,
+    allNodes: FlowNode[]
+): T => {
+    if (!obj || typeof obj !== 'object') {
+        return obj;
+    }
+    
+    const result: any = Array.isArray(obj) ? [] : {};
+    
+    for (const key in obj) {
+        const value = obj[key];
+        
+        if (typeof value === 'string') {
+            // 字符串类型：进行转换
+            result[key] = convertToDisplayName(value, allNodes);
+        } else if (value && typeof value === 'object') {
+            // 对象或数组：递归转换
+            result[key] = convertObjectToDisplayName(value, allNodes);
+        } else {
+            // 其他类型：保持原样
+            result[key] = value;
+        }
+    }
+    
+    return result as T;
+};
+