137 lines
4.3 KiB
Markdown
137 lines
4.3 KiB
Markdown
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# 问题解决方案
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##### 1、Cannot compare left expression of type 'java.io.Serializable' with right expression of type 'java.lang.Long'
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```
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使用@Query查询，因为无法解决序列化问题
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```
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`
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分层结构从上到下：
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`
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```
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Controller (表现层)
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↓
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Service (业务层)
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↓
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Repository (数据访问层)
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```
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`
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对于外部集成：
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`
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```
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Controller
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↓
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Service ←→ Integration Service (集成层)
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↓
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Repository
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```
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```
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GET /api/users - 查询所有用户
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GET /api/users/list?enabled=true - 查询所有启用的用户
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GET /api/users/page?pageNum=1&pageSize=10 - 分页查询用户
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```
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`查询日期示例`
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```
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UserQuery query = new UserQuery();
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query.setCreateTimeRange(
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LocalDateTime.now().minusDays(7), // 一周内
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LocalDateTime.now()
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);
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query.setEnabled(true);
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query.setCreateBy("admin");
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@QueryField(type = QueryType.IN)
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private String status; // 可以传入 "ACTIVE,PENDING,CLOSED"
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```
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```
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QueryDSL使用方法
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@Service
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@Transactional
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public class UserServiceImpl extends BaseServiceImpl<User, Long> implements UserService {
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private final UserRoleRepository userRoleRepository;
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private final QUserRole qUserRole = QUserRole.userRole;
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public UserServiceImpl(UserRepository userRepository, UserRoleRepository userRoleRepository) {
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super(userRepository);
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this.userRoleRepository = userRoleRepository;
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}
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public Set<UserRole> getUserRoles(Long userId) {
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// 使用QueryDSL构建查询条件
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Predicate predicate = qUserRole.user.id.eq(userId);
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return StreamSupport.stream(
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userRoleRepository.findAll(predicate).spliterator(),
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false
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).collect(Collectors.toSet());
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}
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public void assignRole(Long userId, Long roleId) {
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User user = findById(userId);
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Role role = roleRepository.findById(roleId)
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.orElseThrow(() -> new RuntimeException("Role not found"));
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// 检查是否已存在
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Predicate predicate = qUserRole.user.id.eq(userId)
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.and(qUserRole.role.id.eq(roleId));
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if (!userRoleRepository.exists(predicate)) {
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UserRole userRole = new UserRole(user, role);
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userRoleRepository.save(userRole);
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}
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}
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}
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```
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```
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-- 插入正常用户数据
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INSERT INTO sys_user (
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username, password, nickname, email, phone,
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enabled, deleted, dept_id, dept_name,
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create_by, create_time, update_by, update_time, version
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) VALUES
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-- 管理员用户
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('admin', '$2a$10$mW/yJPHjyueQ1g26YxiZNOtr6bKVF4P/w/VHLVHHhxslY.YlXhbcm', '系统管理员', 'admin@example.com', '13800138000',
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true, false, 1, '技术部',
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'system', '2024-01-01 09:00:00', null, null, 0),
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-- 普通用户
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('user01', '$2a$10$mW/yJPHjyueQ1g26YxiZNOtr6bKVF4P/w/VHLVHHhxslY.YlXhbcm', '张三', 'zhangsan@example.com', '13800138001',
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true, false, 1, '技术部',
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'admin', '2024-01-02 10:00:00', null, null, 0),
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('user02', '$2a$10$mW/yJPHjyueQ1g26YxiZNOtr6bKVF4P/w/VHLVHHhxslY.YlXhbcm', '李四', 'lisi@example.com', '13800138002',
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true, false, 2, '市场部',
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'admin', '2024-01-03 11:00:00', 'admin', '2024-01-04 15:00:00', 1),
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-- 已禁用的用户
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('disabled_user', '$2a$10$mW/yJPHjyueQ1g26YxiZNOtr6bKVF4P/w/VHLVHHhxslY.YlXhbcm', '王五', 'wangwu@example.com', '13800138003',
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false, false, 2, '市场部',
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'admin', '2024-01-05 14:00:00', 'admin', '2024-01-06 16:00:00', 1),
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-- 已删除的用户
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('deleted_user', '$2a$10$mW/yJPHjyueQ1g26YxiZNOtr6bKVF4P/w/VHLVHHhxslY.YlXhbcm', '赵六', 'zhaoliu@example.com', '13800138004',
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true, true, 3, '财务部',
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'admin', '2024-01-07 10:00:00', 'admin', '2024-01-08 09:00:00', 2),
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-- 最近创建的用户
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('new_user01', '$2a$10$mW/yJPHjyueQ1g26YxiZNOtr6bKVF4P/w/VHLVHHhxslY.YlXhbcm', '小明', 'xiaoming@example.com', '13800138005',
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true, false, 1, '技术部',
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'admin', '2024-03-01 09:00:00', null, null, 0),
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('new_user02', '$2a$10$mW/yJPHjyueQ1g26YxiZNOtr6bKVF4P/w/VHLVHHhxslY.YlXhbcm', '小红', 'xiaohong@example.com', '13800138006',
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true, false, 2, '市场部',
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'admin', '2024-03-02 10:00:00', null, null, 0),
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-- 多次更新的用户
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('updated_user', '$2a$10$mW/yJPHjyueQ1g26YxiZNOtr6bKVF4P/w/VHLVHHhxslY.YlXhbcm', '小张', 'xiaozhang@example.com', '13800138007',
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true, false, 3, '财务部',
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'admin', '2024-02-01 09:00:00', 'admin', '2024-03-01 15:00:00', 5);
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```
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