diff --git a/src/main/java/com/sztzjy/resource_center/controller/api/CourseApi.java b/src/main/java/com/sztzjy/resource_center/controller/api/CourseApi.java
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index 0000000..a040283
--- /dev/null
+++ b/src/main/java/com/sztzjy/resource_center/controller/api/CourseApi.java
@@ -0,0 +1,62 @@
+package com.sztzjy.resource_center.controller.api;
+
+import com.github.pagehelper.PageHelper;
+import com.github.pagehelper.PageInfo;
+import com.sztzjy.resource_center.annotation.AnonymousAccess;
+import com.sztzjy.resource_center.config.Constant;
+import com.sztzjy.resource_center.entity.*;
+import com.sztzjy.resource_center.mapper.SysOneCatalogMapper;
+import com.sztzjy.resource_center.mapper.SysThreeCatalogMapper;
+import com.sztzjy.resource_center.mapper.SysTwoCatalogMapper;
+import com.sztzjy.resource_center.util.ResultEntity;
+import io.swagger.annotations.Api;
+import io.swagger.annotations.ApiOperation;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.HttpStatus;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
+@RestController
+@Api(tags = "课程方面API")
+@RequestMapping("api/sys/courseApi")
+public class CourseApi {
+    @Autowired
+    SysTwoCatalogMapper twoCatalogMapper;
+    @Autowired
+    SysOneCatalogMapper oneCatalogMapper;
+    @Autowired
+    SysThreeCatalogMapper threeCatalogMapper;
+
+    @AnonymousAccess
+    @ApiOperation("查看二级目录")
+    @PostMapping("getAllTwoCatalogList")
+    public List<SysTwoCatalog> getAllTwoCatalogList(@RequestParam String schoolId,@RequestParam String systemOwner) {
+        SysOneCatalogExample sysOneCatalogExample = new SysOneCatalogExample();
+        sysOneCatalogExample.createCriteria().andOneNameEqualTo(systemOwner);
+        SysOneCatalog sysOneCatalog = oneCatalogMapper.selectByExample(sysOneCatalogExample).get(0);
+        SysTwoCatalogExample example = new SysTwoCatalogExample();
+        SysTwoCatalogExample.Criteria criteria = example.createCriteria();
+        ArrayList<String> list = new ArrayList<>();
+        list.add(schoolId);
+        list.add(Constant.ADMIN);
+        criteria.andCreatorIn(list);
+        criteria.andOneIdEqualTo(sysOneCatalog.getOneId());
+        example.setOrderByClause("sort ASC");
+        List<SysTwoCatalog> sysTwoCatalogs = twoCatalogMapper.selectByExample(example);
+        return sysTwoCatalogs;
+    }
+
+    @PostMapping("selectThreeCatalogListByTwoId")
+    @ApiOperation("根据二级目录ID查寻所有三级目录信息")
+    @AnonymousAccess
+    public List<SysThreeCatalog> selectChapterByCourseId(@RequestParam String twoId){
+        SysThreeCatalogExample example = new SysThreeCatalogExample();
+        example.createCriteria().andTwoIdEqualTo(twoId);
+        example.setOrderByClause("sort asc");
+        List<SysThreeCatalog> sysThreeCatalogs = threeCatalogMapper.selectByExample(example);
+        return  sysThreeCatalogs;
+    }
+}