Module3---Unit 3: Locations :1. City Locations

在DynedCity中,从艺术博物馆出发,沿着HighStreet,您将发现一系列独特的建筑,包括咖啡馆、电影院、酒店、剧院等。了解如何在城市中便捷地穿梭于这些地点,体验DynedCity的独特魅力。

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Welcome to Dyned City. Make yourself at home.

The art museum is on High Street, directly across from the hotel.   

 

Which of these buildings is next to the art museum?

---There is a café on the corner of High Street and First Avenue, next to the art museum.

 

What building is between a café and a cinema?

---The art museum is between a café and a cinema.                                                                                      

 

This hotel is the middle of the block, between First Avenue and Second Avenue.           

The city’s best hotel is on High street, across from the art museum.                                                               

 

What is next door to the hotel and across from Movie Theater?

---This restaurant is next door to the hotel, at the corner of High Street and Second Avenue.

 

Which of these buildings is on the corner of First Avenue and High Street next door to the hotel?

---There is a bank on the corner of First Avenue and High Street next door to the hotel.

 

What building is directly across from the art museum?

---The city’s best hotel is on High street, across from the art museum.

 

Which of these buildings is on the corner of High Street and Second Avenue?

---There is a theater on the corner of High Street and Second Avenue next to the art museum.

 

You can buy medicine, toothpaste, and other personal items here.                                                                                                                                        There is a drugstore on Second Avenue, across from a department store.        

Bookstore There is a bookstore on Second Avenue, between a gas station and a drugstore.

Subway station The entrance is on High Street. around the corner from a book store.

There is a gas station at the intersection of High Street and Second Avenue, next to a subway station.

This is High Street High Street runs east-west. High street runs in front of the hotel.

 

This is First Avenue.

This is Second Avenue.

First Avenue runs north-south.

This is where First Avenue cross High Street.

There is a traffic light at this intersection.

                                                             

What is next door to the hotel and across from the movie theater?

---This is the intersection of High Street and First Avenue.                                 

 

There are many stores along Second Avenue.

This is the intersection of Second Avenue and High Street.

Parking lot there is a parking lot on First Avenue, south of the Hospital.

You can buy stamps or mail a letter here.   

                                                                  

Which of these buildings is Located in the middle of the block? 

---The hotel is in the middle of the block between First Avenue and Second Avenue.

 

 

There is a gas station on First Avenue, opposite a travel agency.

There is a police station on High Street, west of First Avenue.

The hospital is at the intersection of First Avenue and High Street.                   

There is a bank on the corner of First Avenue and High Street next door to the hotel.

 

Where do college students usually go for a cup of coffee?  

---This is café is popular with students from the university.

 

There is a travel agency on First Avenue, next to the post office.

The University is located behind the art museum.

There is a large department store on Second Avenue, South of High Street.

 

There are four directions: North, East, South, and West.  

In summer, children love to play in the park. The City Park is on the North West corner of High Street and First Avenue.   

 

The bank is next to the hotel.       

There are public rest rooms in the park.      

                     

Which of these buildings is on the corner of High Street and Second Avenue?                              

---Movie Theater There is a theater on the corner of High Street and Second Avenue.                                  

The main post office is on First Avenue a bank and a travel agency. 

<think>好的,用户的问题是关于Spring MyBatis中mapper-locations的配置,特别是关于classpath和generator.mapper/*.xml的用法。我需要先理解用户的需求,然后整理相关的信息。 首先,用户可能遇到了mapper.xml文件无法被正确加载的问题,或者在使用代码生成工具时路径配置有误。根据用户提供的引用内容,尤其是引用[1]、[2]、[3]、[4],里面提到了不同的配置示例和常见错误,比如路径写法、通配符的使用以及可能的类转换异常。 接下来,我需要回顾MyBatis在Spring中的配置方式,尤其是mapper-locations的作用。这个配置项用来指定XML映射文件的位置,支持Ant风格的路径匹配。用户可能对classpath和classpath*的区别不太清楚,需要解释清楚。同时,generator.mapper/*.xml这样的路径可能涉及到代码生成工具生成的XML文件存放的位置,需要确认路径是否正确。 然后,常见的问题包括路径错误、通配符使用不当、文件未被正确打包到目标目录中,以及多个模块间的路径问题。例如,引用[2]中提到将XML文件移到resources/mapper目录下,并注释掉原有配置,这可能是因为路径配置错误导致文件无法加载。而引用[4]中的类转换异常可能与Mapper接口和XML文件的命名空间或类型不匹配有关,需要检查XML中的命名空间是否正确对应接口的全限定名。 此外,用户可能在使用MyBatis Generator时,生成的XML文件路径需要与mapper-locations配置一致,否则应用启动时会找不到这些文件。需要说明如何正确配置生成器的targetProject和package名称,确保XML文件生成在正确的位置,并被包含在classpath中。 最后,整理出配置的步骤、示例,以及常见问题的解决方法,帮助用户正确设置mapper-locations,避免常见的路径和配置错误。同时,生成的相关问题可以引导用户进一步排查其他潜在问题,如通配符使用、多模块配置等。</think>### MyBatis `mapper-locations` 配置详解 #### 1. 基本作用 `mapper-locations` 用于指定 MyBatis 的 XML 映射文件(`*Mapper.xml`)的路径。通过此配置,Spring Boot 会自动加载这些文件,实现 SQL 与 Java 接口的绑定[^3]。 #### 2. 配置语法 支持 Ant 风格的通配符: - `classpath:` 表示当前模块的 `resources` 目录 - `classpath*:` 表示所有模块的 `resources` 目录(适用于多模块项目) - `**` 表示多级目录 - `*` 表示单级目录或文件名通配符 #### 3. 典型配置示例 ```yaml mybatis: mapper-locations: classpath*:generator/mapper/*.xml classpath*:com/flk/mapper/**/*.xml ``` 此配置表示: 1. 加载所有模块中 `resources/generator/mapper/` 目录下的 XML 文件 2. 加载 `com.flk.mapper` 包及其子包下的 XML 文件(需配合 Maven 资源过滤) #### 4. 与代码生成的关联 若使用 MyBatis Generator: ```xml <!-- generatorConfig.xml --> <context id="example"> <jdbcConnection .../> <javaModelGenerator targetPackage="com.example.pojo"/> <sqlMapGenerator targetPackage="generator.mapper"/> <!-- 生成的 XML 路径 --> <javaClientGenerator targetPackage="com.example.dao"/> </context> ``` 需确保 `targetPackage` 与 `mapper-locations` 路径匹配[^4]。 #### 5. 常见问题解决 | 问题现象 | 解决方案 | |---------|---------| | 启动时报 `MapperException` | 检查 XML 文件的 `namespace` 是否与 Mapper 接口全限定名一致[^4] | | 报 `Invalid bound statement` | 确认 XML 文件是否被正确打包到 `target/classes` 目录 | | 多模块无法加载文件 | 使用 `classpath*:` 前缀并检查子模块资源目录配置 | | 通配符失效 | 避免在路径中使用连续 `*`,正确使用 `**/*.xml` 格式[^2] | #### 6. 验证配置有效性 在 `application.yml` 中添加: ```yaml logging: level: org.mybatis: DEBUG ``` 启动时若看到日志输出 `Parsed mapper file: &#39;file [...]xxxMapper.xml&#39;` 表示配置成功。
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