pert: 增加lx名称校验

src/main/java/com/xydl/cac/repository/LxRepository.java

@@ -5,8 +5,13 @@ import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.data.jpa.repository.JpaSpecificationExecutor;
 import org.springframework.stereotype.Repository;
 
+import java.util.List;
+
 
 @Repository
 public interface LxRepository extends JpaRepository<Lx, Integer>, JpaSpecificationExecutor<Lx> {
 
+    List<Lx> findByMc(String mc);
+
+    List<Lx> findByMcAndIdIsNot(String mc, Integer id);
 }

src/main/java/com/xydl/cac/service/LxService.java

@@ -8,9 +8,9 @@ public interface LxService {
 
     List<Lx> listAll();
 
-    Lx add(Lx item);
+    Lx add(Lx item) throws Exception;
 
-    void update(Lx item);
+    void update(Lx item) throws Exception;
 
     void delete(Integer id);
 }

src/main/java/com/xydl/cac/service/impl/LxServiceImpl.java

@@ -6,6 +6,7 @@ import com.xydl.cac.service.LxService;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
+import org.springframework.util.CollectionUtils;
 
 import javax.annotation.Resource;
 import java.util.List;
@@ -24,13 +25,21 @@ public class LxServiceImpl implements LxService {
     }
 
     @Override
-    public Lx add(Lx item) {
+    public Lx add(Lx item) throws Exception {
         item.setId(null);
+        List<Lx> list = repository.findByMc(item.getMc());
+        if (!CollectionUtils.isEmpty(list)) {
+            throw new Exception("该名称已被使用");
+        }
         return repository.save(item);
     }
 
     @Override
-    public void update(Lx item) {
+    public void update(Lx item) throws Exception {
+        List<Lx> list = repository.findByMcAndIdIsNot(item.getMc(), item.getId());
+        if (!CollectionUtils.isEmpty(list)) {
+            throw new Exception("该名称已被使用");
+        }
         repository.save(item);
     }