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src/main/java/com/peanut/modules/sociology/service/CourseSociologyService.java

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+package com.peanut.modules.sociology.service;
+
+import com.baomidou.mybatisplus.extension.service.IService;
+import com.peanut.modules.common.entity.CourseSociologyEntity;
+
+import java.util.List;
+
+public interface CourseSociologyService extends IService<CourseSociologyEntity> {
+
+    List<CourseSociologyEntity> getSociologyLabels(Integer id);
+}

src/main/java/com/peanut/modules/sociology/service/impl/CourseSociologyServiceImpl.java

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+package com.peanut.modules.sociology.service.impl;
+
+import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.peanut.modules.common.dao.CourseSociologyDao;
+import com.peanut.modules.common.entity.CourseSociologyEntity;
+import com.peanut.modules.sociology.service.CourseSociologyService;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+
+@Slf4j
+@Service("sociologyCourseSociologyService")
+public class CourseSociologyServiceImpl extends ServiceImpl<CourseSociologyDao, CourseSociologyEntity> implements CourseSociologyService {
+
+    @Override
+    public List<CourseSociologyEntity> getSociologyLabels(Integer id) {
+        LambdaQueryWrapper<CourseSociologyEntity> wrapper = new LambdaQueryWrapper<>();
+        wrapper.eq(CourseSociologyEntity::getPid,id);
+        wrapper.orderByAsc(CourseSociologyEntity::getSort);
+        List<CourseSociologyEntity> list = this.list(wrapper);
+        return list;
+    }
+}