Spring Boot 多模块项目 - 由于从不同模块导入的编译问题而导致构建问题

问题描述 投票：0回答：0

我们有一个从头开始的多模块Spring boot项目，层次结构是这样的

hh（父母）

  • 公共服务（子模块）
  • 应用服务（子模块）
  • 账户服务（子模块）

这是

account-service
.

的pom.xml 
<project xmlns="http://maven.apache.org/POM/4.0.0"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <parent>
        <groupId>com.hh.sukku</groupId>
        <artifactId>hh</artifactId>
        <version>1.0.0</version>
    </parent>

    <artifactId>account-service</artifactId>
    <name>account-service</name>
    <packaging>jar</packaging>
    <description>account-service</description>

    <dependencies>
    
        <!-- Project module dependencies start -->
        
        <dependency>
            <groupId>com.hh.sukku</groupId>
            <artifactId>common-service</artifactId>
            <version>${project.parent.version}</version>
        </dependency>
        
        <!-- Project module dependencies end -->
    
    </dependencies>

</project>

应用程序服务 pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">

    <modelVersion>4.0.0</modelVersion>

    <parent>
        <groupId>com.hh.sukku</groupId>
        <artifactId>hh</artifactId>
        <version>1.0.0</version>
    </parent>

    <artifactId>application-service</artifactId>
    <packaging>war</packaging>
    <name>application-service</name>
    <description>application-service</description>

    <dependencies>
    
        <!-- Project module dependencies start -->
        
        <dependency>
            <groupId>com.hh.sukku</groupId>
            <artifactId>common-service</artifactId>
            <version>${project.parent.version}</version>
        </dependency>
        <dependency>
            <groupId>com.hh.sukku</groupId>
            <artifactId>account-service</artifactId>
            <version>${project.parent.version}</version>
        </dependency>
        
        <!-- Project module dependencies end -->
    
    </dependencies>
</project>

这是父模块pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    
    <modelVersion>4.0.0</modelVersion>
    
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.3.4.RELEASE</version>
        <relativePath /> <!-- lookup parent from repository -->
    </parent>
    
    <groupId>com.hh.sukku</groupId>
    <artifactId>hh</artifactId>
    <version>1.0.0</version>
    <name>hh</name>
    <packaging>pom</packaging>
    <description>Demo project for Spring Boot</description>
    
    <properties>
        <java.version>11</java.version>
        <maven-jar-plugin.version>3.1.1</maven-jar-plugin.version>
    </properties>
    
    <modules>
        <module>common-service</module>
        <module>account-service</module>
        <module>application-service</module>
    </modules>
    
    <dependencies>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <scope>runtime</scope>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-validation</artifactId>
        </dependency>
        
        <dependency>
            <groupId>org.postgresql</groupId>
            <artifactId>postgresql</artifactId>
            <scope>runtime</scope>
        </dependency>
        
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        
        <dependency>
            <groupId>com.hazelcast</groupId>
            <artifactId>hazelcast</artifactId>
        </dependency>
        <dependency>
            <groupId>com.hazelcast</groupId>
            <artifactId>hazelcast-spring</artifactId>
        </dependency>
        
        <dependency>
            <groupId>org.modelmapper</groupId>
            <artifactId>modelmapper</artifactId>
            <version>2.3.5</version>
        </dependency>
        
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <excludes>
                        <exclude>
                            <groupId>org.projectlombok</groupId>
                            <artifactId>lombok</artifactId>
                        </exclude>
                    </excludes>
                </configuration>
            </plugin>
        </plugins>
    </build>

</project>

问题出自

account-service
中的Controller，响应bean和API的错误码出自
common-service
。最初在导入时它显示了两者的编译问题但是在做了
maven-update
之后没有错误。

这是控制器

package com.hh.sukku.account.controller;

import static com.hh.sukku.common.util.ErrorCodes.SUCCESS;

import javax.validation.Valid;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import com.hh.sukku.account.dto.UserDTO;
import com.hh.sukku.account.service.UserService;
import com.hh.sukku.common.beans.Response;

/**
 * 
 * @author arun.sudhakaran
 *
 * 02-Apr-2023 11:14:15 pm
 */

@RestController
@RequestMapping("v1/user")
public class UserController {
    
    @Autowired
    private UserService userService;

    @PostMapping(path = "", consumes = MediaType.APPLICATION_JSON_VALUE)
    public ResponseEntity<Response> create(@Valid @RequestBody UserDTO request) {
        
        userService.create(request);
        
        Response response = new Response(SUCCESS, "Success");
        
        return new ResponseEntity<Response>(response, HttpStatus.OK);
    }
}

当我们尝试在父模块上执行 

maven clean install
时，问题就开始了，它失败并出现此错误

Maven 全新安装的控制台输出

[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Build Order:
[INFO] 
[INFO] hh                                                                 [pom]
[INFO] common-service                                                     [jar]
[INFO] account-service                                                    [jar]
[INFO] application-service                                                [war]
[INFO] 
[INFO] --------------------------< com.hh.sukku:hh >---------------------------
[INFO] Building hh 1.0.0                                                  [1/4]
[INFO] --------------------------------[ pom ]---------------------------------
[INFO] 
[INFO] --- maven-clean-plugin:3.1.0:clean (default-clean) @ hh ---
[INFO] Deleting D:\hh\haraji\workspace\hh\target
[INFO] 
[INFO] --- spring-boot-maven-plugin:2.3.4.RELEASE:repackage (repackage) @ hh ---
[INFO] 
[INFO] --- maven-install-plugin:2.5.2:install (default-install) @ hh ---
[INFO] Installing D:\hh\haraji\workspace\hh\pom.xml to C:\Users\arun.sudhakaran\.m2\repository\com\hh\sukku\hh\1.0.0\hh-1.0.0.pom
[INFO] 
[INFO] --------------------< com.hh.sukku:common-service >---------------------
[INFO] Building common-service 1.0.0                                      [2/4]
[INFO] --------------------------------[ jar ]---------------------------------
[INFO] 
[INFO] --- maven-clean-plugin:3.1.0:clean (default-clean) @ common-service ---
[INFO] Deleting D:\hh\haraji\workspace\hh\common-service\target
[INFO] 
[INFO] --- maven-resources-plugin:3.1.0:resources (default-resources) @ common-service ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 0 resource
[INFO] Copying 0 resource
[INFO] 
[INFO] --- maven-compiler-plugin:3.8.1:compile (default-compile) @ common-service ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 6 source files to D:\hh\haraji\workspace\hh\common-service\target\classes
[INFO] 
[INFO] --- maven-resources-plugin:3.1.0:testResources (default-testResources) @ common-service ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 0 resource
[INFO] 
[INFO] --- maven-compiler-plugin:3.8.1:testCompile (default-testCompile) @ common-service ---
[INFO] Changes detected - recompiling the module!
[INFO] 
[INFO] --- maven-surefire-plugin:2.22.2:test (default-test) @ common-service ---
[INFO] 
[INFO] --- maven-jar-plugin:3.1.1:jar (default-jar) @ common-service ---
[INFO] Building jar: D:\hh\haraji\workspace\hh\common-service\target\common-service-1.0.0.jar
[INFO] 
[INFO] --- spring-boot-maven-plugin:2.3.4.RELEASE:repackage (repackage) @ common-service ---
[INFO] Replacing main artifact with repackaged archive
[INFO] 
[INFO] --- maven-install-plugin:2.5.2:install (default-install) @ common-service ---
[INFO] Installing D:\hh\haraji\workspace\hh\common-service\target\common-service-1.0.0.jar to C:\Users\arun.sudhakaran\.m2\repository\com\hh\sukku\common-service\1.0.0\common-service-1.0.0.jar
[INFO] Installing D:\hh\haraji\workspace\hh\common-service\pom.xml to C:\Users\arun.sudhakaran\.m2\repository\com\hh\sukku\common-service\1.0.0\common-service-1.0.0.pom
[INFO] 
[INFO] --------------------< com.hh.sukku:account-service >--------------------
[INFO] Building account-service 1.0.0                                     [3/4]
[INFO] --------------------------------[ jar ]---------------------------------
[INFO] 
[INFO] --- maven-clean-plugin:3.1.0:clean (default-clean) @ account-service ---
[INFO] Deleting D:\hh\haraji\workspace\hh\account-service\target
[INFO] 
[INFO] --- maven-resources-plugin:3.1.0:resources (default-resources) @ account-service ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 0 resource
[INFO] Copying 0 resource
[INFO] 
[INFO] --- maven-compiler-plugin:3.8.1:compile (default-compile) @ account-service ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 6 source files to D:\hh\haraji\workspace\hh\account-service\target\classes
[INFO] -------------------------------------------------------------
[ERROR] COMPILATION ERROR : 
[INFO] -------------------------------------------------------------
[ERROR] /D:/hh/haraji/workspace/hh/account-service/src/main/java/com/hh/sukku/account/controller/UserController.java:[3,39] package com.hh.sukku.common.util does not exist
[ERROR] /D:/hh/haraji/workspace/hh/account-service/src/main/java/com/hh/sukku/account/controller/UserController.java:[3,1] static import only from classes and interfaces
[ERROR] /D:/hh/haraji/workspace/hh/account-service/src/main/java/com/hh/sukku/account/controller/UserController.java:[18,33] package com.hh.sukku.common.beans does not exist
[ERROR] /D:/hh/haraji/workspace/hh/account-service/src/main/java/com/hh/sukku/account/controller/UserController.java:[35,31] cannot find symbol
  symbol:   class Response
  location: class com.hh.sukku.account.controller.UserController
[INFO] 4 errors 
[INFO] -------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO] 
[INFO] hh 1.0.0 ........................................... SUCCESS [  3.983 s]
[INFO] common-service ..................................... SUCCESS [  6.801 s]
[INFO] account-service .................................... FAILURE [  2.462 s]
[INFO] application-service 1.0.0 .......................... SKIPPED
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 14.509 s
[INFO] Finished at: 2023-04-04T15:33:17+05:30
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.8.1:compile (default-compile) on project account-service: Compilation failure: Compilation failure: 
[ERROR] /D:/hh/haraji/workspace/hh/account-service/src/main/java/com/hh/sukku/account/controller/UserController.java:[3,39] package com.hh.sukku.common.util does not exist
[ERROR] /D:/hh/haraji/workspace/hh/account-service/src/main/java/com/hh/sukku/account/controller/UserController.java:[3,1] static import only from classes and interfaces
[ERROR] /D:/hh/haraji/workspace/hh/account-service/src/main/java/com/hh/sukku/account/controller/UserController.java:[18,33] package com.hh.sukku.common.beans does not exist
[ERROR] /D:/hh/haraji/workspace/hh/account-service/src/main/java/com/hh/sukku/account/controller/UserController.java:[35,31] cannot find symbol
[ERROR]   symbol:   class Response
[ERROR]   location: class com.hh.sukku.account.controller.UserController
[ERROR] -> [Help 1]
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
[ERROR] 
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR]   mvn <goals> -rf :account-service

我们甚至在

maven clean install -X
上分别尝试了
maven install
和
account-service
。所有尝试都因相同的错误而失败。

有趣的是，应用程序可以成功启动，但是当我们尝试访问 API 时，我们得到了 

404
。可能缺少什么？没有可见的编译错误。

另一个有趣的事实是，当我们尝试将控制器从 

account-service
导入到 
application-service
并尝试构建 
application-service
时，它是成功的。但是当我们尝试从 
common-service
导入一个 bean 时，同样的失败了，所以我们可以缩小问题的范围，即 
common-service
.

edit-1 的重大变化

  • 我们发现一件事是模块的
    groupId
    与父模块不一样，所以我们创建了一个新模块，所有模块都具有相同的
    groupId
    。问题保持不变。
  • 我们将父版本硬编码到每个模块及其依赖项，但问题仍然存在。
  • 我们尝试从 
    Response
    选项导入 
    Fix project setup...
    bean，并在弹出窗口中找到该 bean。问题保持不变。
  • 我们新创建了同一个项目，并通过检查选项
    Create a simple project (skip archetype selection)
    和
    Add project(s) to the working set
    添加了新模块，但问题仍然存在。
  • 父 pom.xml 有警告，所以我们从运行配置（
    reference
    ）的配置文件部分删除了pom，但问题仍然存在。

但是在某些时候，当我们启动应用程序服务时，我们能够处理请求并将数据插入表中，因此我们尝试构建父 pom，但再次失败。后来应用程序开始再次为相同的请求提供 404。

java spring-boot maven build multi-module
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