运行无报错，序列化ID无法解决，需要使用@Query手动写SQL解决，现在这个问题只产生在中间关联表上，正常实体类不会

backend/README.md

@@ -1,3 +1,11 @@
+
+# 问题解决方案
+##### 1、Cannot compare left expression of type 'java.io.Serializable' with right expression of type 'java.lang.Long'
+```
+使用@Query查询，因为无法解决序列化问题
+```
+
+
 `
 分层结构从上到下：
 `
@@ -125,3 +133,4 @@ true, false, 2, '市场部',
 true, false, 3, '财务部',
 'admin', '2024-02-01 09:00:00', 'admin', '2024-03-01 15:00:00', 5);
 ```
+

backend/src/main/java/com/qqchen/deploy/backend/common/service/impl/BaseServiceImpl.java

@@ -30,11 +30,9 @@ import org.springframework.util.StringUtils;
 
 import java.io.Serializable;
 import java.lang.reflect.Field;
-import java.util.stream.Collectors;
-import java.util.stream.StreamSupport;
 
 @Transactional
-public abstract class BaseServiceImpl<T extends Entity<ID>, ID extends Serializable> implements IBaseService<T, ID> {
+public abstract class BaseServiceImpl<T extends Entity<ID>, ID extends Number & Serializable> implements IBaseService<T, ID> {
 
     protected final IBaseRepository<T, ID> repository;
 
@@ -286,12 +284,10 @@ public abstract class BaseServiceImpl<T extends Entity<ID>, ID extends Serializa
     @Override
     public List<T> findAll(BaseQuery query) {
         BooleanBuilder builder = new BooleanBuilder().and(Expressions.asBoolean(true).isTrue());
-
         // 添加查询条件
         if (query != null) {
             buildQueryPredicate(query, builder);
         }
-
         // 处理软删除
         if (query == null || query.getDeleted() == null) {
             Class<?>[] genericTypes = GenericTypeResolver.resolveTypeArguments(getClass(), BaseServiceImpl.class);
@@ -306,12 +302,10 @@ public abstract class BaseServiceImpl<T extends Entity<ID>, ID extends Serializa
                 }
             }
         }
-
         // 获取排序信息
         Sort sort = query != null && StringUtils.hasText(query.getSortField()) ?
             Sort.by(Sort.Direction.fromString(query.getSortOrder()), query.getSortField()) :
             Sort.by(Sort.Direction.DESC, "createTime");
-
         // 执行查询并返回结果
         Iterable<T> iterable = repository.findAll(builder, sort);
         List<T> result = new ArrayList<>();

backend/src/main/java/com/qqchen/deploy/backend/entity/Menu.java

@@ -1,13 +1,24 @@
 package com.qqchen.deploy.backend.entity;
 
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.qqchen.deploy.backend.common.annotation.LogicDelete;
 import com.qqchen.deploy.backend.common.domain.Entity;
 import jakarta.persistence.Column;
+import jakarta.persistence.FetchType;
+import jakarta.persistence.JoinColumn;
+import jakarta.persistence.ManyToMany;
+import jakarta.persistence.ManyToOne;
+import jakarta.persistence.OneToMany;
 import jakarta.persistence.Table;
+import jakarta.persistence.Transient;
 import lombok.Data;
 import lombok.EqualsAndHashCode;
+import lombok.ToString;
 
+import java.util.HashSet;
 import java.util.List;
+import java.util.Set;
+import java.util.stream.Collectors;
 
 
 @Data
@@ -42,5 +53,17 @@ public class Menu extends Entity<Long> {
     @Column(nullable = false)
     private Boolean enabled = true;
 
-//    List<RoleMenu> roleMenu;
+    // 通过RoleMenu关联到Role
+    @OneToMany(mappedBy = "menu")
+    @JsonIgnore
+    @ToString.Exclude
+    private Set<RoleMenu> roleMenus = new HashSet<>();
+
+    // 便捷方法：获取所有关联的角色
+    @Transient
+    public Set<Role> getRoles() {
+        return roleMenus.stream()
+            .map(RoleMenu::getRole)
+            .collect(Collectors.toSet());
+    }
 }

backend/src/main/java/com/qqchen/deploy/backend/entity/Role.java

@@ -5,6 +5,7 @@ import com.qqchen.deploy.backend.common.annotation.LogicDelete;
 import com.qqchen.deploy.backend.common.domain.Entity;
 import jakarta.persistence.CascadeType;
 import jakarta.persistence.Column;
+import jakarta.persistence.ManyToMany;
 import jakarta.persistence.OneToMany;
 import jakarta.persistence.Table;
 import jakarta.validation.constraints.NotBlank;
@@ -41,4 +42,9 @@ public class Role extends Entity<Long> {
     @JsonIgnore
     @ToString.Exclude
     private Set<UserRole> userRoles = new HashSet<>();
+
+    @OneToMany(mappedBy = "role", cascade = CascadeType.ALL, orphanRemoval = true)
+    @JsonIgnore
+    @ToString.Exclude
+    private Set<RoleMenu> roleMenus = new HashSet<>();
 } 

backend/src/main/java/com/qqchen/deploy/backend/entity/RoleMenu.java

@@ -1,12 +1,19 @@
 package com.qqchen.deploy.backend.entity;
 
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.qqchen.deploy.backend.common.annotation.LogicDelete;
 import com.qqchen.deploy.backend.common.domain.Entity;
 import jakarta.persistence.Column;
+import jakarta.persistence.FetchType;
+import jakarta.persistence.JoinColumn;
+import jakarta.persistence.ManyToMany;
+import jakarta.persistence.ManyToOne;
 import jakarta.persistence.Table;
 import lombok.Data;
 import lombok.EqualsAndHashCode;
+import lombok.ToString;
 
+import java.util.Set;
 
 
 @Data
@@ -16,9 +23,22 @@ import lombok.EqualsAndHashCode;
 @LogicDelete
 public class RoleMenu extends Entity<Long> {
     
-    @Column(name = "role_id", nullable = false)
+    @ManyToOne(fetch = FetchType.LAZY)
-    private Long roleId;
+    @JoinColumn(name = "role_id")
+    @JsonIgnore
+    @ToString.Exclude
+    private Role role;
 
-    @Column(name = "menu_id", nullable = false)
+    @ManyToOne(fetch = FetchType.LAZY)
-    private Long menuId;
+    @JoinColumn(name = "menu_id")
+    @JsonIgnore
+    @ToString.Exclude
+    private Menu menu;
+
+    protected RoleMenu() {}
+
+    public RoleMenu(Role role, Menu menu) {
+        this.role = role;
+        this.menu = menu;
+    }
 } 

backend/src/main/java/com/qqchen/deploy/backend/repository/IRoleMenuRepository.java

@@ -3,6 +3,7 @@ package com.qqchen.deploy.backend.repository;
 
 import com.qqchen.deploy.backend.common.repository.IBaseRepository;
 import com.qqchen.deploy.backend.entity.RoleMenu;
+import org.springframework.data.jpa.repository.Query;
 import org.springframework.stereotype.Repository;
 
 import java.util.List;
@@ -10,9 +11,10 @@ import java.util.List;
 @Repository
 public interface IRoleMenuRepository extends IBaseRepository<RoleMenu, Long> {
 
-    List<RoleMenu> findByRoleId(Long roleId);
+//    List<RoleMenu> findByRoleId(Long roleId);
-    
+//
-    void deleteByRoleId(Long roleId);
+//    void deleteByRoleId(Long roleId);
-    
+//
-    List<RoleMenu> findByRoleIdIn(List<Long> roleIds);
+//    List<RoleMenu> findByRoleIdIn(List<Long> roleIds);
+    // 通过角色ID查询
 }