SVN Workspace Synchronization

本文详细介绍了如何使用SVN的同步视图进行版本控制操作,包括资源的新增、修改、删除等状态显示及处理方式,并提供了各种操作的图标解释。此外还介绍了同步视图中的工具栏按钮和下拉菜单的功能。

SVN Workspace Synchronization is shown in the 'Synchronize View' after a click on a 'Team>Synchronize' menu item or 'Synchronize' button on 'Team' toolbar of the 'Team Synchronizing' perspective. It provides a probability to inspect the changes types of your local copy from the remote one.

This is how 'SVN Workspace Synchronization' in the 'Synchronize View' looks like:

Synchronize View

Synchronization state

The synchronization state is shown with the help of the following icon decorations:

IconDescription
Incoming additionAn incoming addition icon means, that the marked resource was added to a repository location, so it's new comparatively to the local copy. It will be added to the local copy after update action.
Incoming changeAn incoming change icon means, that some changes to the marked file were made comparatively to your local copy. The changes will be added to the local copy after update action.
Incoming deletionAn incoming deletion icon means, that this resource was deleted from a repository location, but it's still contained in the local copy. It will be deleted from the local copy after update.
Outgoing additionAn outgoing addition icon means, that the marked resource was added to the local copy, so it's new comparatively to the repository location. It will be added to the repository after commit action.
Outgoing changeAn outgoing change icon means, that some changes to the marked file were made comparatively to the repository location. The changes will be added to the repository after commit action.
Outgoing deletionAn outgoing deletion icon means, that the marked resource was deleted from the local copy, but it's still contained in the repository location. It will be deleted the repository after commit action.
Conflict additionA conflict addition icon means, that to different resources with the marked resource name were added both to the repository location and to the local copy.
Conflict changeA conflict change icon means, that the changes, that can't be merged automatically were made both with local copy and repository one. A manual merge is required. The parents of the decorated resource will be also decorated.
Conflict deletionA conflict deletion icon means, that both local and repository's copy of the resource were deleted.
Properties changeA properties change icon means, that the properties of local or repository's resource were changed.

 

Toolbar

Synchronize ( ) - starts synchronization with repository.

Pin Current Synchronization ( ) - pins current synchronization, so other started synchronizations will be shown in another synchronization view.

Next difference ( ) - shows the next difference of the resources.

Previous difference ( ) - shows the previous difference of the resources.

Collapse all ( ) - redraws the view collapsing all expanded items.

Expand all ( ) - redraws the view expanding all collapsed items.

Incoming mode ( ) - redraws the view showing only incoming changes.

Outgoing mode ( ) - redraws the view showing only outgoing changes.

Incoming/outgoing mode ( ) - redraws the view showing both incoming and outgoing changes.

Conflict mode ( ) - redraws the view showing only conflict changes.

Update All Incoming Changes ( ) - activates the update action for all incoming changes.

Commit All Outgoing Changes ( ) - activates the commit action for all outgoing changes.

Show Change Sets ( ) - displays specific model based on change sets. The view shows incoming changes grouped by commit comment which is handy for seeing who released what and why. For outgoing changes, the user can create change sets to group related changes.

Drop-down menu:

  • Pin Current Synchronization ( ) - pins current synchronization.
  • Remove Current Synchronization ( ) - removes current synchronization info from the view.
  • Remove Un-Pined Synchronization ( ) - removes all unpinned synchronizations from the view.
  • Mode - offers the user to choose a synchronization mode (incoming, outgoing, both or conflict).
  • Presentation - offers the user to choose presentation mode (flat, tree, compressed folders).
  • Preferences... - opens Synchronization preferences window.
  • Schedule... - offers to schedule the synchronize operation.
  • Show synchronization info contiguous - shows synchronization for already synchronized resources, while the synchronization process for others is still running at background.

Pop-up menu

Open in compare editor (files only) - opens the file in compare editor with its content on the left and repository file content on the right.

Open (files only) - opens the file with default editor.

Open with... (files only) - opens the file with probability to choose the editor.

Edit - provides a probability to copy, delete, move or rename a resource.

Synchronize - starts synchronization with repository.

Remove from View - removes the selected resource from the view. It will reappear in the view if it's synchronization status changes.

Update - activates the update action for the selected resource.

Commit... - activates the commit action for the selected resource.

Override and update... ( ) - replaces the selected resource local copy with a repository one.

Override and commit... ( ) - replaces the selected resource repository copy with a local one.

Mark as merged... - mark the file as if it is already merged.

Revert... ( ) - reverts the file changes to the unmodified state.

Add to version control... - adds a selected resource to version control.

Add to svn:ignore... - adds a selected resource to svn:ignore.

Create Patch... - creates patch based on local changes.

Branch... ( ) - creates branch from working copy.

Show History ( ) - shows SVN History View for a selected resource.

Show Annotations - shows annotation for a selected resource.

Show Properties ( ) - shows SVN properties of a selected resource.

Set Property... - sets property on local resource.

Set Keywords... - sets keywords on local resource.

Lock... ( ) - locks local resource.

Unlock ( ) - unlocks local resource.

Clean-up - performs clean-up for selected folder.

 

 

Description: Field baseMapper in com.baomidou.mybatisplus.extension.service.impl.ServiceImpl required a single bean, but 15 were found: - baseProjectSiteDao: defined in file [D:\SVNWorkspace\dzproject\dzproject\dzproject1\target\classes\com\mapper\BaseProjectSiteDao.class] - basicMapper: defined in file [D:\SVNWorkspace\dzproject\dzproject\dzproject1\target\classes\com\mapper\BasicMapper.class] - concreteDesignMapper: defined in file [D:\SVNWorkspace\dzproject\dzproject\dzproject1\target\classes\com\mapper\ConcreteDesignMapper.class] - concreteMapper: defined in file [D:\SVNWorkspace\dzproject\dzproject\dzproject1\target\classes\com\mapper\ConcreteMapper.class] - dictionaryMapper: defined in file [D:\SVNWorkspace\dzproject\dzproject\dzproject1\target\classes\com\mapper\DictionaryMapper.class] - dzGcstDao: defined in file [D:\SVNWorkspace\dzproject\dzproject\dzproject1\target\classes\com\mapper\DzGcstDao.class] - geologicalMapper: defined in file [D:\SVNWorkspace\dzproject\dzproject\dzproject1\target\classes\com\mapper\GeologicalMapper.class] - gravelCurveMapper: defined in file [D:\SVNWorkspace\dzproject\dzproject\dzproject1\target\classes\com\mapper\GravelCurveMapper.class] - overallImageMapper: defined in file [D:\SVNWorkspace\dzproject\dzproject\dzproject1\target\classes\com\mapper\OverallImageMapper.class] - parentRockMapper: defined in file [D:\SVNWorkspace\dzproject\dzproject\dzproject1\target\classes\com\mapper\ParentRockMapper.class] - slagProductionMapper: defined in file [D:\SVNWorkspace\dzproject\dzproject\dzproject1\target\classes\com\mapper\SlagProductionMapper.class] - traceManagementMapper: defined in file [D:\SVNWorkspace\dzproject\dzproject\dzproject1\target\classes\com\mapper\TraceManagementMapper.class] - treeRelationMapper: defined in file [D:\SVNWorkspace\dzproject\dzproject\dzproject1\target\classes\com\mapper\TreeRelationMapper.class] - tunnelSlagConcreteMapper: defined in file [D:\SVNWorkspace\dzproject\dzproject\dzproject1\tar
最新发布
03-27
<think>好的,我现在需要解决用户在MyBatis Plus中遇到的ServiceImpl注入baseMapper时出现多个bean的问题。首先,我得理解用户的问题场景。根据用户的描述,他们在使用MyBatis Plus的ServiceImpl时,可能因为存在多个BaseMapper的实现,导致Spring无法正确注入,从而抛出“multiple beans found”的错误。 首先,我需要回忆MyBatis Plus的基本结构。MyBatis Plus通过BaseMapper接口为每个实体类提供通用的CRUD方法。通常,每个Mapper接口都会继承BaseMapper,并指定泛型类型为对应的实体类。例如,UserMapper extends BaseMapper<User>。Spring在启动时,会为每个这样的Mapper接口生成代理对象,并注册为Bean。因此,如果存在多个Mapper接口继承BaseMapper,并且这些接口可能被扫描到,就会导致有多个BaseMapper类型的Bean,进而引发注入冲突。 接下来,用户的问题可能出现在ServiceImpl的实现中。ServiceImpl是MyBatis Plus提供的服务实现类,需要注入对应的BaseMapper。例如,UserServiceImpl extends ServiceImpl<UserMapper, User>,这时候在UserServiceImpl中会自动注入UserMapper。但如果ServiceImpl的泛型参数没有正确指定,或者存在多个Mapper接口对应同一个实体类,就会导致Spring无法确定注入哪个Bean。 接下来,我需要考虑可能的解决方案。根据经验,常见的解决方法包括: 1. **检查泛型参数是否正确**:确保ServiceImpl的子类正确指定了Mapper接口和实体类。例如,UserServiceImpl应该定义为`public class UserServiceImpl extends ServiceImpl<UserMapper, User> implements UserService`。如果泛型参数错误,可能导致注入错误的Mapper。 2. **使用@Qualifier注解明确指定Bean名称**:如果在同一实体类下有多个Mapper接口(这种情况较少见,但有可能),可以通过@Qualifier指定具体的Bean名称。例如,在ServiceImpl中,可以使用`@Autowired @Qualifier("userMapper")`来明确注入哪个Mapper。 3. **检查MyBatis Plus的配置**:确保在配置类中正确配置了Mapper扫描路径,避免扫描到不必要的接口。使用`@MapperScan`注解指定精确的包路径,防止其他包的Mapper被意外扫描进来。 4. **检查是否存在重复的Bean定义**:例如,可能在XML配置或Java配置中重复定义了Mapper的Bean,导致Spring容器中存在多个相同类型的Bean。需要检查所有配置,确保每个Mapper只被注册一次。 5. **使用@Primary注解标记主Bean**:如果有多个符合条件的Bean,可以在主Mapper上添加@Primary注解,告诉Spring优先注入该Bean。 6. **自定义SqlSessionFactoryBean排除冲突Mapper**:如果问题是由于第三方库或模块引入的冲突Mapper导致,可以通过自定义SqlSessionFactoryBean的配置,排除不需要的Mapper接口。 现在需要验证这些解决方案的可行性。首先,用户的问题是在注入baseMapper时出现多个Bean,这可能是因为ServiceImpl的泛型参数没有正确指定,导致Spring无法找到唯一的Bean。例如,如果ServiceImpl的泛型参数是BaseMapper而不是具体的UserMapper,那么Spring会寻找所有BaseMapper的实现,导致冲突。因此,检查泛型参数是否正确是关键的第一步。 其次,如果用户确实有多个Mapper接口对应同一个实体类,比如UserMapper1和UserMapper2都继承BaseMapper<User>,那么必须通过@Qualifier或@Primary来解决冲突。但这种情况在实际开发中比较少见,通常一个实体类对应一个Mapper接口。 另外,检查Mapper扫描路径是否正确也很重要。如果@MapperScan注解扫描的包路径包含了多个项目的Mapper接口,或者扫描范围过大,可能会导致引入不必要的Bean,从而引发冲突。例如,如果两个模块都有UserMapper,并且都被扫描到,就会导致重复。 还有一种可能是,用户在自己的代码中手动注册了Mapper的Bean,与MyBatis Plus自动生成的Bean冲突。例如,使用@Bean注解在配置类中创建了Mapper的实例,这会导致Spring容器中存在两个相同的Bean,需要检查配置类中是否有这样的代码。 此外,MyBatis Plus的ServiceImpl内部是通过泛型来自动注入对应的Mapper,因此必须确保ServiceImpl的子类正确指定了泛型类型。如果泛型参数不正确,比如使用了错误的实体类或Mapper接口,就会导致注入错误类型的Mapper,进而可能引发多个Bean的问题。 总结可能的解决步骤: 1. **确认ServiceImpl的泛型参数**:确保子类正确继承了ServiceImpl,并指定了正确的Mapper和实体类型。 2. **检查Mapper扫描范围**:确保@MapperScan只扫描必要的包,避免引入其他冲突的Mapper。 3. **使用@Qualifier或@Primary**:如果有多个Bean,明确指定需要注入的Bean。 4. **检查重复的Bean定义**:查看是否有手动注册的Mapper Bean,或第三方库引入的冲突。 5. **查看错误日志**:根据Spring的报错信息,确认冲突的Bean名称和类型,从而针对性解决。 最后,需要给出用户具体的步骤和示例代码,帮助他们一步步排查和解决问题。例如,如何检查泛型参数,如何添加@Qualifier注解,如何调整@MapperScan的路径等。同时,提醒用户在修改配置后重新编译启动,观察是否问题解决。</think>### 解决MyBatis Plus中ServiceImpl注入baseMapper时出现多个Bean的问题 在MyBatis Plus中,`ServiceImpl`类需要依赖特定的`BaseMapper`实现类完成数据库操作。若出现**"multiple beans found"**错误,通常是因为Spring容器中存在多个类型匹配的`BaseMapper`实例,导致依赖注入时无法确定具体注入哪一个。以下是逐步排查和解决的方案: --- #### 1. 检查ServiceImpl的泛型参数定义 确保`ServiceImpl`的子类**明确定义了具体的Mapper接口和实体类型**。 **错误示例**(泛型未指定具体类型): ```java // 错误:泛型参数不明确,导致Spring无法匹配唯一Bean public class UserServiceImpl extends ServiceImpl<BaseMapper<User>, User> { // ... } ``` **正确示例**: ```java // 正确:明确指定UserMapper和User类型 public class UserServiceImpl extends ServiceImpl<UserMapper, User> implements UserService { // ... } ``` --- #### 2. 检查Mapper接口的继承关系 每个Mapper接口应**唯一绑定一个实体类**,且继承`BaseMapper<T>`时需指定泛型类型。 **示例**: ```java @Mapper public interface UserMapper extends BaseMapper<User> { // 自定义方法(可选) } ``` 若存在多个Mapper绑定同一实体类(如`UserMapper1`和`UserMapper2`均继承`BaseMapper<User>`),需通过以下方式解决: - **方案1**:删除多余的Mapper,保持单实体单Mapper。 - **方案2**:使用`@Qualifier`指定Bean名称(见步骤3)。 --- #### 3. 使用@Qualifier或@Primary注解 若确实需要多个同类型Mapper,需通过注解明确注入目标Bean。 **步骤**: 1. 在Mapper接口上添加`@Qualifier`标记: ```java @Mapper @Qualifier("userMapper") // 定义Bean名称 public interface UserMapper extends BaseMapper<User> {} ``` 2. 在ServiceImpl中指定注入的Bean: ```java public class UserServiceImpl extends ServiceImpl<UserMapper, User> { @Autowired @Qualifier("userMapper") // 匹配标记的Bean private UserMapper userMapper; } ``` 或直接在类上使用`@Primary`标记主Bean: ```java @Mapper @Primary // 优先注入此Bean public interface UserMapper extends BaseMapper<User> {} ``` --- #### 4. 检查Mapper扫描路径配置 确保`@MapperScan`注解的包路径**仅包含当前项目的Mapper接口**,避免扫描到其他模块或第三方库的同名Mapper。 **示例**: ```java @Configuration @MapperScan("com.example.project.mapper") // 精确指定包路径 public class MybatisPlusConfig {} ``` --- #### 5. 排除重复Bean定义 检查是否存在以下情况导致重复Bean: - **手动注册Mapper的Bean**:删除类似`@Bean public UserMapper userMapper() { ... }`的代码。 - **第三方库引入冲突**:通过`exclude`属性排除无关的Mapper类。 --- #### 6. 验证配置是否生效 在应用启动时,观察日志中是否输出`Registered Mapper`信息,确认实际注册的Mapper列表是否符合预期。若问题仍未解决,可通过调试模式查看`ApplicationContext`中所有`BaseMapper`类型的Bean名称。 --- ### 总结 根本原因在于**Spring容器中存在多个类型匹配的BaseMapper实例**,解决方法包括: 1. 明确泛型参数和Mapper接口绑定关系。 2. 使用`@Qualifier`或`@Primary`注解解决冲突。 3. 检查并限制Mapper扫描范围[^2][^4]。 若问题持续,建议提供具体的错误日志和代码片段以便进一步分析。
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