java Spring boot 无法解析占位符 application.yml

Spring boot Could not resolve placeholder application.yml

提问by Lexo Alonzo

i'm new in spring and i have a trouble with it. When i run my application with IntelliJ Idea everything works perfect, but when i compile it to a .jar application this give me this error java.lang.IllegalArgumentException: Could not resolve placeholder 'jwt.secret' in value "${jwt.secret}"

我是春天新来的，我遇到了麻烦。当我使用 IntelliJ Idea 运行我的应用程序时，一切正常，但是当我将它编译为 .jar 应用程序时，这给了我这个错误java.lang.IllegalArgumentException: Could not resolve placeholder 'jwt.secret' in value "${jwt.secret}"

This is my application.ymllocated at src/main/resources

这是我application.yml位于src/main/resources

#Config Application
jwt:
  header: Authorization
  secret: mySecret
  expiration: 604800
  route:
    authentication:
      path: auth
      refresh: refresh
      token: check

When i change my to this it works perfect.

当我改变我的这个它工作完美。

//    @Value("${jwt.secret}")
    @Value("mySecret")
    private String secret;

What i'm doing wrong?

我在做什么错？

Note: i'm using MAVEN

注意：我正在使用 MAVEN

This is my pom.xml

这是我的 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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.example.test</groupId>
    <artifactId>test-app</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>

    <name>test-app</name>
    <description>Test</description>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.6.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
        <jjwt.version>0.7.0</jjwt.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-security</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web-services</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-rest</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.mobile</groupId>
            <artifactId>spring-mobile-device</artifactId>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>com.h2database</groupId>
            <artifactId>h2</artifactId>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>io.jsonwebtoken</groupId>
            <artifactId>jjwt</artifactId>
            <version>${jjwt.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-configuration-processor</artifactId>
            <optional>true</optional>
        </dependency>

    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
        <resources>
            <resource>
                <directory>src/main/resources</directory>
                <filtering>true</filtering>
            </resource>
        </resources>
    </build>


</project>

采纳答案by Lexo Alonzo

My bad i was building with Intellij Idea. Build using this command:

我的坏处是用 Intellij Idea 构建。使用以下命令构建：

./mvnw clean package

回答by wwj

@Autowired private Environment env;

@Autowired 私有环境环境；

env.getProperty("jwt.secret")

env.getProperty("jwt.secret")

you can try!

你可以试试！

回答by Henry Kurz

You have a tiny mistake there. Look at your application.yml:

你有一个小错误。看看你的 application.yml：

 jwt:
  header: Authorization
  secret: mySecret

The property name is "secret" and not "mySecret". You accidentally bind to the value instead of the property name. Simply replace:

属性名称是“secret”而不是“mySecret”。您不小心绑定到值而不是属性名称。简单地替换：

@Value("mySecret")

by this:

这样：

@Value("secret")

Your error message however indicates that you used the commented out "jws.secret". Please keep in mind that if you use a prefix (e.g. "jws") then you can refer to that property by "secret" only.

但是，您的错误消息表明您使用了注释掉的“jws.secret”。请记住，如果您使用前缀（例如“jws”），那么您只能通过“秘密”来引用该属性。