無法在多模塊Maven專案中決議值“${test.name}”中的占位符“test.name”-SpringBoot

我從一個簡單的 Spring Boot 啟動專案開始。

我改名application.properties為application.yml

在application.yml檔案中，我只添加了簡單的代碼：

test:
  name: myAppName

我創建了一個控制器并添加了這段測驗代碼：

@RestController
public class Controller {

    @Value("${test.name}")
     private String name;

    @GetMapping("/test")
    public String test(){
        return name;
    }
}

從郵遞員那里打來的，一切都很好。

然后，我添加模塊命名integration是由兩個以上的模塊user-service和communication-service

當我運行應用程式后，我會收到此錯誤：

Could not resolve placeholder 'test.name' in value "${test.name}"

父級POM看起來像這樣：

<?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>
    <modules>
        <module>integration</module>
        <module>integration/user-service</module>
        <module>integration/communication-service</module>
    </modules>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.6.0</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    
    <groupId>com.w</groupId>
    <artifactId>registration-service</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>pom</packaging>
    <name>registration-service</name>
    
    <description>Registration service</description>
    
    <properties>
        <java.version>11</java.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>com.w</groupId>
            <artifactId>user-service</artifactId>
            <version>0.0.1-SNAPSHOT</version>
        </dependency>

        <dependency>
            <groupId>com.w</groupId>
            <artifactId>communication-service</artifactId>
            <version>0.0.1-SNAPSHOT</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>5.3.13</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>5.3.13</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>

Integration模塊POM即是兩個模塊看起來像這樣一致的：

<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <parent>
        <artifactId>registration-service</artifactId>
        <groupId>com.w</groupId>
        <version>0.0.1-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>integration</artifactId>

    <properties>
        <maven.compiler.source>11</maven.compiler.source>
        <maven.compiler.target>11</maven.compiler.target>
    </properties>

</project>

而user-service模塊POM是內部integration模塊如下所示：

<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <parent>
        <artifactId>registration-service</artifactId>
        <groupId>com.wevolv</groupId>
        <version>0.0.1-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>user-service</artifactId>
    <groupId>com.w</groupId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>

    <properties>
        <maven.compiler.source>11</maven.compiler.source>
        <maven.compiler.target>11</maven.compiler.target>
    </properties>

</project>

我不確定我在這里遺漏了什么以及為什么我無法再讀取 application.yml 檔案。

uj5u.com熱心網友回復：

您的父 pom 屬于pom型別，并且不處理舞臺中src/main/resourcesmaven 資源插件下的資源process-resources。

您應該src/main/resources/application.yml從專案根目錄移動到integration/user-service/src/main/resources或integration/communication-service/src/main/resources

標籤：爪哇 春天 弹簧靴 行家

上一篇：SVG陰影不重復元素輪廓

下一篇：SpringBoot：如何讓物體反映資料庫列的變化？