实现：组件库二级到三级的显示

src/main/java/com/yeejoin/amos/api/tool/controller/ToolLibraryResource.java

 package com.yeejoin.amos.api.tool.controller;
 
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.yeejoin.amos.api.tool.face.model.ToolLibraryDetailModel;
 import com.yeejoin.amos.api.tool.face.model.ToolLibraryTreeModel;
 import com.yeejoin.amos.api.tool.face.service.ToolLibraryService;
 import io.swagger.annotations.Api;
@@ -14,6 +16,7 @@ import org.typroject.tyboot.core.restful.doc.TycloudOperation;
 import org.typroject.tyboot.core.restful.doc.TycloudResource;
 import org.typroject.tyboot.core.restful.utils.ResponseHelper;
 import org.typroject.tyboot.core.restful.utils.ResponseModel;
+
 import java.sql.SQLException;
 import java.util.List;
 
@@ -29,8 +32,20 @@ public class ToolLibraryResource {
     @GetMapping("/list")
     @ApiOperation(value = "组件库设计器节点列表")
     @TycloudOperation(ApiLevel = UserType.AGENCY, needAuth = false)
-     public ResponseModel<List<ToolLibraryTreeModel>> listComponentTools(@RequestParam("designer")String designer) throws SQLException, ClassNotFoundException {
+    public ResponseModel<List<ToolLibraryTreeModel>> listComponentTools(@RequestParam("designer") String designer) throws SQLException, ClassNotFoundException {
         return ResponseHelper.buildResponse(toolLibraryService.queryForComponentList(designer));
     }
 
+    @GetMapping("/detailList")
+    @ApiOperation(value = "组件库设计器节点详情")
+    @TycloudOperation(ApiLevel = UserType.AGENCY, needAuth = false)
+    public ResponseModel<Page<ToolLibraryDetailModel>> listComponentToolsDetails(
+            @RequestParam(value = "sequenceNbr") String sequenceNbr,
+            @RequestParam(value = "current") int current,
+            @RequestParam(value = "size") int size) throws SQLException, ClassNotFoundException {
+        // 当前页和每页显示数量
+        Page<ToolLibraryDetailModel> page = new Page<>(current, size);
+        return ResponseHelper.buildResponse(toolLibraryService.queryForComponentListDetails(page, sequenceNbr));
+    }
+
 }

src/main/java/com/yeejoin/amos/api/tool/face/model/ToolLibraryDetailModel.java

+package com.yeejoin.amos.api.tool.face.model;
+
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import lombok.NoArgsConstructor;
+import org.typroject.tyboot.core.rdbms.model.BaseModel;
+
+@Data
+@EqualsAndHashCode(callSuper = true)
+@ApiModel(value="ToolLibraryDetailModel")
+@AllArgsConstructor
+@NoArgsConstructor
+public class ToolLibraryDetailModel extends BaseModel {
+
+    @ApiModelProperty(value = "name")
+    private String name;
+
+    @ApiModelProperty(value = "category")
+    private String category;
+
+    @ApiModelProperty(value = "component_key")
+    private String componentKey;
+
+}

src/main/java/com/yeejoin/amos/api/tool/face/orm/entity/ToolLibraryDetail.java

+package com.yeejoin.amos.api.tool.face.orm.entity;
+
+import com.baomidou.mybatisplus.annotation.TableField;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import lombok.experimental.Accessors;
+import org.typroject.tyboot.core.rdbms.orm.entity.BaseEntity;
+
+
+@Data
+@EqualsAndHashCode(callSuper = true)
+@Accessors(chain = true)
+@TableName("morphic_widget")
+public class ToolLibraryDetail extends BaseEntity {
+    /**
+     * 工具名称
+     */
+    @TableField("name")
+    private String name;
+
+    /**
+     * 工具类别
+     */
+    @TableField("category")
+    private String category;
+
+    /**
+     * 工具组件key
+     */
+    @TableField("component_key")
+    private String componentKey;
+
+}

src/main/java/com/yeejoin/amos/api/tool/face/service/ToolLibraryService.java

 package com.yeejoin.amos.api.tool.face.service;
 
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.yeejoin.amos.api.tool.face.model.ToolLibraryDetailModel;
 import com.yeejoin.amos.api.tool.face.model.ToolLibraryModel;
 import com.yeejoin.amos.api.tool.face.model.ToolLibraryTreeModel;
 import com.yeejoin.amos.api.tool.face.orm.dao.ToolLibraryMapper;
@@ -7,6 +9,7 @@ import com.yeejoin.amos.api.tool.face.orm.entity.ToolLibrary;
 import com.yeejoin.amos.api.tool.utils.DataBaseUtils;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.stereotype.Service;
+import org.typroject.tyboot.core.foundation.utils.ValidationUtil;
 import org.typroject.tyboot.core.rdbms.service.BaseService;
 import java.sql.Connection;
 import java.sql.DriverManager;
@@ -49,6 +52,64 @@ public class ToolLibraryService extends BaseService<ToolLibraryModel, ToolLibrar
         return getChildren(displayLists,"",0L);
     }
 
+    public Page<ToolLibraryDetailModel> queryForComponentListDetails(Page<ToolLibraryDetailModel> page, String sequenceNbr)
+            throws ClassNotFoundException, SQLException {
+        Class.forName(className);
+        Connection connection = DriverManager.getConnection(url, userName, passWord);
+        // 先查当前节点的parent，看是不是0，从而判断在叶子节点还是父节点
+        List<Map<String, Object>> clickedNodeMaps = DataBaseUtils.getMaps(
+                "select SEQUENCE_NBR, parent, DESIGNER_TYPE, display_name " +
+                        "from morphic_widget_group " +
+                        "where is_delete != 1 and SEQUENCE_NBR = " + sequenceNbr, connection);
+        String parent = clickedNodeMaps.get(0).get("parent").toString();
+        List<Map<String, Object>> displayTools = new ArrayList<>();
+        if (parent.equals("0")) {
+            // 父节点
+            // 查询所有表中parent==sequenceNbr的行数据
+            List<Map<String, Object>> displayMaps = DataBaseUtils.getMaps(
+                    "select SEQUENCE_NBR, parent, DESIGNER_TYPE, display_name " +
+                            "from morphic_widget_group " +
+                            "where is_delete != 1 and parent = " + sequenceNbr, connection);
+            for (Map<String, Object> map: displayMaps) {
+                String seqNbr = map.get("SEQUENCE_NBR").toString();
+                displayTools.addAll(DataBaseUtils.getMaps("select SEQUENCE_NBR, category, component_key, name " +
+                        "from morphic_widget where is_delete != 1 and group_id = " + seqNbr, connection));
+            }
+        }
+        else {
+            // 叶子节点
+            // 查询morphic_widget表中，group_id为sequenceNbr的所有工具数据
+            displayTools.addAll(DataBaseUtils.getMaps(
+                    "select SEQUENCE_NBR, category, component_key, name " +
+                            "from morphic_widget " +
+                            "where is_delete != 1 and group_id = " + sequenceNbr, connection));
+        }
+        connection.close();
+
+        List<ToolLibraryDetailModel> records = new ArrayList<>();
+        for (Map<String, Object> map : displayTools) {
+            ToolLibraryDetailModel model = new ToolLibraryDetailModel();
+            model.setSequenceNbr(Long.valueOf(map.get("SEQUENCE_NBR").toString()));
+            model.setCategory(map.get("category").toString());
+            model.setComponentKey(map.get("component_key").toString());
+            model.setName(map.get("name").toString());
+            records.add(model);
+        }
+        // 封装Page
+        long current = page.getCurrent();
+        long size = page.getSize();
+        if (!ValidationUtil.isEmpty(records)) {
+            page.setTotal(records.size());
+            page.setCurrent(current);
+            page.setSize(size);
+            // 只返回records中一页内的内容
+            long start = (current - 1) * size;
+            page.setRecords(records.subList((int) start, (int) Math.min(start + size, records.size())));
+        }
+        return page;
+    }
+
+
     /**
      * 获得模板分类子节点（递归）
      */
@@ -68,4 +129,5 @@ public class ToolLibraryService extends BaseService<ToolLibraryModel, ToolLibrar
         return treeModels;
     }
 
+
 }